From c37605cf7d592be4c75a63ad7c5a1c0d229af94d Mon Sep 17 00:00:00 2001
From: Thomas Wilkerling <thomas@nextapps.de>
Date: Mon, 14 Apr 2025 10:07:11 +0200
Subject: [PATCH] fix document result highlighting when using "pluck"

---
 README.md                               |   74 +-
 demo/autocomplete.html                  |   63 +-
 dist/flexsearch.bundle.debug.js         | 1228 ++++++++++++-----------
 dist/flexsearch.bundle.min.js           |  156 +--
 dist/flexsearch.bundle.module.debug.js  | 1228 ++++++++++++-----------
 dist/flexsearch.bundle.module.min.js    |  156 +--
 dist/flexsearch.compact.debug.js        |  634 ++++++------
 dist/flexsearch.compact.min.js          |  104 +-
 dist/flexsearch.compact.module.debug.js |  634 ++++++------
 dist/flexsearch.compact.module.min.js   |  106 +-
 dist/flexsearch.es5.debug.js            | 1006 ++++++++++---------
 dist/flexsearch.es5.min.js              |  190 ++--
 dist/flexsearch.light.debug.js          |    2 +-
 dist/flexsearch.light.min.js            |    2 +-
 dist/flexsearch.light.module.debug.js   |    2 +-
 dist/flexsearch.light.module.min.js     |    2 +-
 dist/module-debug/document/search.js    |   43 +-
 dist/module-min/document/search.js      |    2 +-
 dist/module/document/search.js          |   43 +-
 package-lock.json                       |    4 +-
 package.json                            |    2 +-
 src/document/search.js                  |   46 +-
 22 files changed, 2918 insertions(+), 2809 deletions(-)

diff --git a/README.md b/README.md
index 3915817..5f9e0e9 100644
--- a/README.md
+++ b/README.md
@@ -300,12 +300,6 @@ The **_dist_** folder is located in: `node_modules/flexsearch/dist/`
         <td>File</td>
         <td>CDN</td>
     </tr>
-    <tr>
-        <td>flexsearch.bundle.debug.js</td>
-        <td><a href="https://github.com/nextapps-de/flexsearch/raw/0.8.1/dist/flexsearch.bundle.debug.js" target="_blank">Download</a></td>
-        <td><a href="https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.bundle.debug.js" target="_blank">https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.bundle.debug.js</a></td>
-    </tr>
-    <tr></tr>
     <tr>
         <td>flexsearch.bundle.min.js</td>
         <td><a href="https://github.com/nextapps-de/flexsearch/raw/0.8.1/dist/flexsearch.bundle.min.js" target="_blank">Download</a></td>
@@ -313,9 +307,9 @@ The **_dist_** folder is located in: `node_modules/flexsearch/dist/`
     </tr>
     <tr></tr>
     <tr>
-        <td>flexsearch.bundle.module.debug.js</td>
-        <td><a href="https://github.com/nextapps-de/flexsearch/raw/0.8.1/dist/flexsearch.bundle.module.debug.js" target="_blank">Download</a></td>
-        <td><a href="https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.bundle.module.debug.js" target="_blank">https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.bundle.module.debug.js</a></td>
+        <td>flexsearch.bundle.debug.js</td>
+        <td><a href="https://github.com/nextapps-de/flexsearch/raw/0.8.1/dist/flexsearch.bundle.debug.js" target="_blank">Download</a></td>
+        <td><a href="https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.bundle.debug.js" target="_blank">https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.bundle.debug.js</a></td>
     </tr>
     <tr></tr>
     <tr>
@@ -325,33 +319,45 @@ The **_dist_** folder is located in: `node_modules/flexsearch/dist/`
     </tr>
     <tr></tr>
     <tr>
-        <td>flexsearch.es5.debug.js</td>
-        <td><a href="https://github.com/nextapps-de/flexsearch/raw/0.8.1/dist/flexsearch.es5.debug.js" target="_blank">Download</a></td>
-        <td><a href="https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.es5.debug.js" target="_blank">https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.es5.debug.js</a></td>
+        <td>flexsearch.bundle.module.debug.js</td>
+        <td><a href="https://github.com/nextapps-de/flexsearch/raw/0.8.1/dist/flexsearch.bundle.module.debug.js" target="_blank">Download</a></td>
+        <td><a href="https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.bundle.module.debug.js" target="_blank">https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.bundle.module.debug.js</a></td>
     </tr>
     <tr></tr>
     <tr>
-        <td>flexsearch.es5.min.js</td>
-        <td><a href="https://github.com/nextapps-de/flexsearch/raw/0.8.1/dist/flexsearch.es5.min.js" target="_blank">Download</a></td>
-        <td><a href="https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.es5.min.js" target="_blank">https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.es5.min.js</a></td>
+        <td>flexsearch.compact.min.js</td>
+        <td><a href="https://github.com/nextapps-de/flexsearch/raw/0.8.1/dist/flexsearch.compact.min.js" target="_blank">Download</a></td>
+        <td><a href="https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.compact.min.js" target="_blank">https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.compact.min.js</a></td>
     </tr>
     <tr></tr>
     <tr>
-        <td>flexsearch.light.debug.js</td>
-        <td><a href="https://github.com/nextapps-de/flexsearch/raw/0.8.1/dist/flexsearch.light.debug.js" target="_blank">Download</a></td>
-        <td><a href="https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.light.debug.js" target="_blank">https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.light.debug.js</a></td>
+        <td>flexsearch.compact.debug.js</td>
+        <td><a href="https://github.com/nextapps-de/flexsearch/raw/0.8.1/dist/flexsearch.compact.debug.js" target="_blank">Download</a></td>
+        <td><a href="https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.compact.debug.js" target="_blank">https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.compact.debug.js</a></td>
+    </tr>
+    <tr></tr>
+    <tr>
+        <td>flexsearch.compact.module.min.js</td>
+        <td><a href="https://github.com/nextapps-de/flexsearch/raw/0.8.1/dist/flexsearch.compact.module.min.js" target="_blank">Download</a></td>
+        <td><a href="https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.compact.module.min.js" target="_blank">https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.compact.module.min.js</a></td>
+    </tr>
+    <tr></tr>
+    <tr>
+        <td>flexsearch.compact.module.debug.js</td>
+        <td><a href="https://github.com/nextapps-de/flexsearch/raw/0.8.1/dist/flexsearch.compact.module.debug.js" target="_blank">Download</a></td>
+        <td><a href="https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.compact.module.debug.js" target="_blank">https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.compact.module.debug.js</a></td>
     </tr>
     <tr></tr>
     <tr>
         <td>flexsearch.light.min.js</td>
         <td><a href="https://github.com/nextapps-de/flexsearch/raw/0.8.1/dist/flexsearch.light.min.js" target="_blank">Download</a></td>
         <td><a href="https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.light.min.js" target="_blank">https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.light.min.js</a></td>
-    </tr>
+    </tr>****
     <tr></tr>
     <tr>
-        <td>flexsearch.light.module.debug.js</td>
-        <td><a href="https://github.com/nextapps-de/flexsearch/raw/0.8.1/dist/flexsearch.light.module.debug.js" target="_blank">Download</a></td>
-        <td><a href="https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.light.module.debug.js" target="_blank">https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.light.module.debug.js</a></td>
+        <td>flexsearch.light.debug.js</td>
+        <td><a href="https://github.com/nextapps-de/flexsearch/raw/0.8.1/dist/flexsearch.light.debug.js" target="_blank">Download</a></td>
+        <td><a href="https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.light.debug.js" target="_blank">https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.light.debug.js</a></td>
     </tr>
     <tr></tr>
     <tr>
@@ -360,22 +366,40 @@ The **_dist_** folder is located in: `node_modules/flexsearch/dist/`
         <td><a href="https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.light.module.min.js" target="_blank">https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.light.module.min.js</a></td>
     </tr>
     <tr></tr>
+    <tr>
+        <td>flexsearch.light.module.debug.js</td>
+        <td><a href="https://github.com/nextapps-de/flexsearch/raw/0.8.1/dist/flexsearch.light.module.debug.js" target="_blank">Download</a></td>
+        <td><a href="https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.light.module.debug.js" target="_blank">https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.light.module.debug.js</a></td>
+    </tr>
+    <tr></tr>
+    <tr>
+        <td>flexsearch.es5.min.js</td>
+        <td><a href="https://github.com/nextapps-de/flexsearch/raw/0.8.1/dist/flexsearch.es5.min.js" target="_blank">Download</a></td>
+        <td><a href="https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.es5.min.js" target="_blank">https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.es5.min.js</a></td>
+    </tr>
+    <tr></tr>
+    <tr>
+        <td>flexsearch.es5.debug.js</td>
+        <td><a href="https://github.com/nextapps-de/flexsearch/raw/0.8.1/dist/flexsearch.es5.debug.js" target="_blank">Download</a></td>
+        <td><a href="https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.es5.debug.js" target="_blank">https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/flexsearch.es5.debug.js</a></td>
+    </tr>
+    <tr></tr>
     <tr>
         <td>Javascript Modules (ESM)</td>
         <td><a href="https://download-directory.github.io/?url=https%3A%2F%2Fgithub.com%2Fnextapps-de%2Fflexsearch%2Ftree%2F0.8.1%2Fdist%2Fmodule" target="_blank">Download</a></td>
-        <td><a href="https://github.com/nextapps-de/flexsearch/tree/0.8.1/dist/module" target="_blank">https://github.com/nextapps-de/flexsearch/tree/0.8.1/dist/module</a></td>
+        <td><a href="https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/module/" target="_blank">https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/module/</a></td>
     </tr>
     <tr></tr>
     <tr>
         <td>Javascript Modules Minified (ESM)</td>
         <td><a href="https://download-directory.github.io/?url=https%3A%2F%2Fgithub.com%2Fnextapps-de%2Fflexsearch%2Ftree%2F0.8.1%2Fdist%2Fmodule-min" target="_blank">Download</a></td>
-        <td><a href="https://github.com/nextapps-de/flexsearch/tree/0.8.1/dist/module-min" target="_blank">https://github.com/nextapps-de/flexsearch/tree/0.8.1/dist/module-min</a></td>
+        <td><a href="https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/module-min/" target="_blank">https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/module-min/</a></td>
     </tr>
     <tr></tr>
     <tr>
         <td>Javascript Modules Debug (ESM)</td>
         <td><a href="https://download-directory.github.io/?url=https%3A%2F%2Fgithub.com%2Fnextapps-de%2Fflexsearch%2Ftree%2F0.8.1%2Fdist%2Fmodule-debug" target="_blank">Download</a></td>
-        <td><a href="https://github.com/nextapps-de/flexsearch/tree/0.8.1/dist/module-debug" target="_blank">https://github.com/nextapps-de/flexsearch/tree/0.8.1/dist/module-debug</a></td>
+        <td><a href="https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/module-debug/" target="_blank">https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@0.8.1/dist/module-debug/</a></td>
     </tr>
     <tr></tr>
     <tr>
diff --git a/demo/autocomplete.html b/demo/autocomplete.html
index e51d698..dc104db 100644
--- a/demo/autocomplete.html
+++ b/demo/autocomplete.html
@@ -40,7 +40,7 @@
         }
         #trigger-prev,
         #trigger-next{
-            pointer-events: none
+            z-index: -1;
         }
         input{
             padding:7px 5px;
@@ -103,7 +103,7 @@
 <!--<div id="info">iterate results by arrow keys</div>-->
 <script type="module">
 
-    import { Document } from "https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@master/dist/flexsearch.bundle.module.min.js";
+    import { Document } from "https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@master/dist/flexsearch.compact.module.min.js";
     import data from "https://cdn.jsdelivr.net/gh/nextapps-de/flexsearch@master/demo/data/movies.js";
 
     // for "Result Highlighting" it requires the usage of a Document Index
@@ -138,25 +138,22 @@
     const suggest = document.getElementById("suggest");
     const trigger_prev = document.getElementById("trigger-prev");
     const trigger_next = document.getElementById("trigger-next");
-    let results;
+    let results = [];
     let iterate = 0;
 
     userinput.addEventListener("input", show_results, true);
     userinput.addEventListener("keyup", accept_autocomplete, true);
-    userinput.addEventListener("keydown", iterate_autocomplete, true);
+    userinput.addEventListener("keydown", iterate_selected, true);
     suggest.addEventListener("change", toggle_suggest, true);
     suggestions.addEventListener("click", accept_suggestion, true);
 
     trigger_prev.addEventListener("focus", function(){
-        if(iterate > 0) {
-            iterate_autocomplete({ key: "ArrowUp"});
-        }
+        iterate_selected({ key: "ArrowUp"});
         userinput.focus();
     }, true);
+
     trigger_next.addEventListener("focus", function(){
-        if(iterate < results.length){
-            iterate_autocomplete({ key: "ArrowDown"});
-        }
+        iterate_selected({ key: "ArrowDown"});
         userinput.focus();
     }, true);
 
@@ -169,17 +166,14 @@
 
     function show_results(){
 
-        let value = userinput.value;
         results = index.searchCache({
-            query: value,
-            limit: 25,
+            query: userinput.value,
             suggest: suggest.checked,
+            limit: 25,
+            pluck: "title",
             enrich: true,
             highlight: "<b>$1</b>"
         });
-        results = results[0] || results;
-        results = results.result || results;
-        iterate = 0;
 
         let entry, childs = suggestions.childNodes;
         let i = 0, len = results.length;
@@ -200,26 +194,26 @@
             suggestions.removeChild(childs[i]);
         }
 
-        iterate_autocomplete()
+        select_result(0);
+        iterate_selected();
     }
 
-    function iterate_autocomplete(event){
+    function iterate_selected(event){
 
-        suggestions.childNodes[iterate] &&
-        (suggestions.childNodes[iterate].style.backgroundColor = "");
+        let index = iterate;
 
         if(event){
             const key = event.key;
             if(key === "ArrowUp"){
                 if(iterate > 0){
-                    iterate--;
+                    select_result(--index);
                 }
                 event.preventDefault &&
                 event.preventDefault();
             }
             else if(key === "ArrowDown"){
                 if(iterate < results.length){
-                    iterate++;
+                    select_result(++index);
                 }
                 event.preventDefault &&
                 event.preventDefault();
@@ -227,32 +221,41 @@
         }
 
         let value = userinput.value;
-        let first_result = results && results[iterate] && data[results[iterate].id];
+        let first_result = results && results[index] && data[results[index].id];
         let match = first_result && first_result.toLowerCase().indexOf(value.toLowerCase());
 
-        if(first_result && (match !== -1)){
+        if(first_result && (match > -1)){
             autocomplete.value = value + first_result.substring(match + value.length);
             autocomplete.current = first_result;
-            suggestions.childNodes[iterate] &&
-            (suggestions.childNodes[iterate].style.backgroundColor = "rgb(0 0 255 / 10%)");
         }
         else{
-
             autocomplete.value = autocomplete.current = value;
         }
     }
 
+    function select_result(index){
+
+        let node = suggestions.childNodes[iterate];
+        node && (node.style.backgroundColor = "");
+
+        iterate = index;
+
+        node = suggestions.childNodes[iterate];
+        node && (node.style.backgroundColor = "rgba(0, 0, 255, 0.1)");
+    }
+
     function accept_autocomplete(event){
 
-        if((event || window.event).keyCode === 13) {
-            this.value = autocomplete.value = autocomplete.current;
+        const key = (event || window.event).keyCode;
+        if(key === 13 || key === 39) {
+            userinput.value = autocomplete.value = autocomplete.current;
             suggestions.textContent = "";
         }
     }
 
     function accept_suggestion(event){
 
-        let target = (event || window.event).target;
+        const target = (event || window.event).target;
         userinput.value = autocomplete.value = target.textContent;
         suggestions.textContent = "";
 
diff --git a/dist/flexsearch.bundle.debug.js b/dist/flexsearch.bundle.debug.js
index 9387620..1d99cb2 100644
--- a/dist/flexsearch.bundle.debug.js
+++ b/dist/flexsearch.bundle.debug.js
@@ -1,20 +1,20 @@
 /**!
- * FlexSearch.js v0.8.154 (Bundle/Debug)
+ * FlexSearch.js v0.8.155 (Bundle/Debug)
  * Author and Copyright: Thomas Wilkerling
  * Licence: Apache-2.0
  * Hosted by Nextapps GmbH
  * https://github.com/nextapps-de/flexsearch
  */
 (function _f(self){'use strict';if(typeof module!=='undefined')self=module;else if(typeof process !== 'undefined')self=process;self._factory=_f;
-var v;
-function A(a, c, b) {
+var t;
+function z(a, c, b) {
   const e = typeof b, d = typeof a;
   if ("undefined" !== e) {
     if ("undefined" !== d) {
       if (b) {
         if ("function" === d && e === d) {
-          return function(k) {
-            return a(b(k));
+          return function(h) {
+            return a(b(h));
           };
         }
         c = a.constructor;
@@ -44,13 +44,13 @@ function A(a, c, b) {
   }
   return "undefined" === d ? c : a;
 }
-function B() {
+function A() {
   return Object.create(null);
 }
-function F(a) {
+function D(a) {
   return "string" === typeof a;
 }
-function H(a) {
+function G(a) {
   return "object" === typeof a;
 }
 function aa(a) {
@@ -61,7 +61,7 @@ function aa(a) {
   return c;
 }
 function ba(a, c) {
-  if (F(c)) {
+  if (D(c)) {
     a = a[c];
   } else {
     for (let b = 0; a && b < c.length; b++) {
@@ -90,9 +90,9 @@ function ja(a = {}) {
     this.assign(a);
   }
 }
-v = ja.prototype;
-v.assign = function(a) {
-  this.normalize = A(a.normalize, !0, this.normalize);
+t = ja.prototype;
+t.assign = function(a) {
+  this.normalize = z(a.normalize, !0, this.normalize);
   let c = a.include, b = c || a.exclude || a.split, e;
   if (b || "" === b) {
     if ("object" === typeof b && b.constructor !== RegExp) {
@@ -115,28 +115,28 @@ v.assign = function(a) {
     } else {
       this.split = b, e = !1 === b || 2 > "a1a".split(b).length;
     }
-    this.numeric = A(a.numeric, e);
+    this.numeric = z(a.numeric, e);
   } else {
     try {
-      this.split = A(this.split, da);
+      this.split = z(this.split, da);
     } catch (d) {
       console.warn("This platform does not support unicode regex. It falls back to using simple whitespace splitter instead: /s+/."), this.split = /\s+/;
     }
-    this.numeric = A(a.numeric, A(this.numeric, !0));
+    this.numeric = z(a.numeric, z(this.numeric, !0));
   }
-  this.prepare = A(a.prepare, null, this.prepare);
-  this.finalize = A(a.finalize, null, this.finalize);
+  this.prepare = z(a.prepare, null, this.prepare);
+  this.finalize = z(a.finalize, null, this.finalize);
   b = a.filter;
-  this.filter = "function" === typeof b ? b : A(b && new Set(b), null, this.filter);
-  this.dedupe = A(a.dedupe, !0, this.dedupe);
-  this.matcher = A((b = a.matcher) && new Map(b), null, this.matcher);
-  this.mapper = A((b = a.mapper) && new Map(b), null, this.mapper);
-  this.stemmer = A((b = a.stemmer) && new Map(b), null, this.stemmer);
-  this.replacer = A(a.replacer, null, this.replacer);
-  this.minlength = A(a.minlength, 1, this.minlength);
-  this.maxlength = A(a.maxlength, 1024, this.maxlength);
-  this.rtl = A(a.rtl, !1, this.rtl);
-  if (this.cache = b = A(a.cache, !0, this.cache)) {
+  this.filter = "function" === typeof b ? b : z(b && new Set(b), null, this.filter);
+  this.dedupe = z(a.dedupe, !0, this.dedupe);
+  this.matcher = z((b = a.matcher) && new Map(b), null, this.matcher);
+  this.mapper = z((b = a.mapper) && new Map(b), null, this.mapper);
+  this.stemmer = z((b = a.stemmer) && new Map(b), null, this.stemmer);
+  this.replacer = z(a.replacer, null, this.replacer);
+  this.minlength = z(a.minlength, 1, this.minlength);
+  this.maxlength = z(a.maxlength, 1024, this.maxlength);
+  this.rtl = z(a.rtl, !1, this.rtl);
+  if (this.cache = b = z(a.cache, !0, this.cache)) {
     this.H = null, this.S = "number" === typeof b ? b : 2e5, this.B = new Map(), this.G = new Map(), this.L = this.K = 128;
   }
   this.h = "";
@@ -155,20 +155,20 @@ v.assign = function(a) {
   }
   return this;
 };
-v.addStemmer = function(a, c) {
+t.addStemmer = function(a, c) {
   this.stemmer || (this.stemmer = new Map());
   this.stemmer.set(a, c);
   this.A += (this.A ? "|" : "") + a;
   this.N = null;
-  this.cache && I(this);
+  this.cache && H(this);
   return this;
 };
-v.addFilter = function(a) {
+t.addFilter = function(a) {
   "function" === typeof a ? this.filter = a : (this.filter || (this.filter = new Set()), this.filter.add(a));
-  this.cache && I(this);
+  this.cache && H(this);
   return this;
 };
-v.addMapper = function(a, c) {
+t.addMapper = function(a, c) {
   if ("object" === typeof a) {
     return this.addReplacer(a, c);
   }
@@ -177,10 +177,10 @@ v.addMapper = function(a, c) {
   }
   this.mapper || (this.mapper = new Map());
   this.mapper.set(a, c);
-  this.cache && I(this);
+  this.cache && H(this);
   return this;
 };
-v.addMatcher = function(a, c) {
+t.addMatcher = function(a, c) {
   if ("object" === typeof a) {
     return this.addReplacer(a, c);
   }
@@ -191,26 +191,26 @@ v.addMatcher = function(a, c) {
   this.matcher.set(a, c);
   this.h += (this.h ? "|" : "") + a;
   this.M = null;
-  this.cache && I(this);
+  this.cache && H(this);
   return this;
 };
-v.addReplacer = function(a, c) {
+t.addReplacer = function(a, c) {
   if ("string" === typeof a) {
     return this.addMatcher(a, c);
   }
   this.replacer || (this.replacer = []);
   this.replacer.push(a, c);
-  this.cache && I(this);
+  this.cache && H(this);
   return this;
 };
-v.encode = function(a) {
+t.encode = function(a) {
   if (this.cache && a.length <= this.K) {
     if (this.H) {
       if (this.B.has(a)) {
         return this.B.get(a);
       }
     } else {
-      this.H = setTimeout(I, 50, this);
+      this.H = setTimeout(H, 50, this);
     }
   }
   this.normalize && ("function" === typeof this.normalize ? a = this.normalize(a) : a = ia ? a.normalize("NFKD").replace(ia, "").toLowerCase() : a.toLowerCase());
@@ -218,8 +218,8 @@ v.encode = function(a) {
   this.numeric && 3 < a.length && (a = a.replace(fa, "$1 $2").replace(ha, "$1 $2").replace(ea, "$1 "));
   const c = !(this.dedupe || this.mapper || this.filter || this.matcher || this.stemmer || this.replacer);
   let b = [], e = this.split || "" === this.split ? a.split(this.split) : a;
-  for (let f = 0, g, k; f < e.length; f++) {
-    if ((g = k = e[f]) && !(g.length < this.minlength || g.length > this.maxlength)) {
+  for (let f = 0, g, h; f < e.length; f++) {
+    if ((g = h = e[f]) && !(g.length < this.minlength || g.length > this.maxlength)) {
       if (c) {
         b.push(g);
       } else {
@@ -232,24 +232,24 @@ v.encode = function(a) {
                 continue;
               }
             } else {
-              this.H = setTimeout(I, 50, this);
+              this.H = setTimeout(H, 50, this);
             }
           }
-          this.stemmer && 2 < g.length && (this.N || (this.N = new RegExp("(?!^)(" + this.A + ")$")), g = g.replace(this.N, h => this.stemmer.get(h)));
+          this.stemmer && 2 < g.length && (this.N || (this.N = new RegExp("(?!^)(" + this.A + ")$")), g = g.replace(this.N, k => this.stemmer.get(k)));
           if (g && (this.mapper || this.dedupe && 1 < g.length)) {
             d = "";
-            for (let h = 0, l = "", n, m; h < g.length; h++) {
-              n = g.charAt(h), n === l && this.dedupe || ((m = this.mapper && this.mapper.get(n)) || "" === m ? m === l && this.dedupe || !(l = m) || (d += m) : d += l = n);
+            for (let k = 0, l = "", m, n; k < g.length; k++) {
+              m = g.charAt(k), m === l && this.dedupe || ((n = this.mapper && this.mapper.get(m)) || "" === n ? n === l && this.dedupe || !(l = n) || (d += n) : d += l = m);
             }
             g = d;
           }
-          this.matcher && 1 < g.length && (this.M || (this.M = new RegExp("(" + this.h + ")", "g")), g = g.replace(this.M, h => this.matcher.get(h)));
+          this.matcher && 1 < g.length && (this.M || (this.M = new RegExp("(" + this.h + ")", "g")), g = g.replace(this.M, k => this.matcher.get(k)));
           if (g && this.replacer) {
             for (d = 0; g && d < this.replacer.length; d += 2) {
               g = g.replace(this.replacer[d], this.replacer[d + 1]);
             }
           }
-          this.cache && k.length <= this.L && (this.G.set(k, g), this.G.size > this.S && (this.G.clear(), this.L = this.L / 1.1 | 0));
+          this.cache && h.length <= this.L && (this.G.set(h, g), this.G.size > this.S && (this.G.clear(), this.L = this.L / 1.1 | 0));
           g && b.push(g);
         }
       }
@@ -259,12 +259,12 @@ v.encode = function(a) {
   this.cache && a.length <= this.K && (this.B.set(a, b), this.B.size > this.S && (this.B.clear(), this.K = this.K / 1.1 | 0));
   return b;
 };
-function I(a) {
+function H(a) {
   a.H = null;
   a.B.clear();
   a.G.clear();
 }
-;let J, M;
+;let I, L;
 async function ka(a) {
   a = a.data;
   var c = a.task;
@@ -272,25 +272,25 @@ async function ka(a) {
   let e = a.args;
   switch(c) {
     case "init":
-      M = a.options || {};
-      (c = a.factory) ? (Function("return " + c)()(self), J = new self.FlexSearch.Index(M), delete self.FlexSearch) : J = new N(M);
+      L = a.options || {};
+      (c = a.factory) ? (Function("return " + c)()(self), I = new self.FlexSearch.Index(L), delete self.FlexSearch) : I = new N(L);
       postMessage({id:b});
       break;
     default:
       let d;
       if ("export" === c) {
-        if (!M.export || "function" !== typeof M.export) {
+        if (!L.export || "function" !== typeof L.export) {
           throw Error('Either no extern configuration provided for the Worker-Index or no method was defined on the config property "export".');
         }
-        e[1] ? (e[0] = M.export, e[2] = 0, e[3] = 1) : e = null;
+        e[1] ? (e[0] = L.export, e[2] = 0, e[3] = 1) : e = null;
       }
       if ("import" === c) {
-        if (!M.import || "function" !== typeof M.import) {
+        if (!L.import || "function" !== typeof L.import) {
           throw Error('Either no extern configuration provided for the Worker-Index or no method was defined on the config property "import".');
         }
-        e[0] && (a = await M.import.call(J, e[0]), J.import(e[0], a));
+        e[0] && (a = await L.import.call(I, e[0]), I.import(e[0], a));
       } else {
-        (d = e && J[c].apply(J, e)) && d.then && (d = await d);
+        (d = e && I[c].apply(I, e)) && d.then && (d = await d);
       }
       postMessage("search" === c ? {id:b, msg:d} : {id:b});
   }
@@ -330,19 +330,19 @@ function ma(a) {
 ;let O = 0;
 function P(a = {}) {
   function c(g) {
-    function k(h) {
-      h = h.data || h;
-      const l = h.id, n = l && d.h[l];
-      n && (n(h.msg), delete d.h[l]);
+    function h(k) {
+      k = k.data || k;
+      const l = k.id, m = l && d.h[l];
+      m && (m(k.msg), delete d.h[l]);
     }
     this.worker = g;
-    this.h = B();
+    this.h = A();
     if (this.worker) {
-      e ? this.worker.on("message", k) : this.worker.onmessage = k;
+      e ? this.worker.on("message", h) : this.worker.onmessage = h;
       if (a.config) {
-        return new Promise(function(h) {
+        return new Promise(function(k) {
           d.h[++O] = function() {
-            h(d);
+            k(d);
             1e9 < O && (O = 0);
           };
           d.worker.postMessage({id:O, task:"init", factory:b, options:a});
@@ -438,18 +438,18 @@ function xa(a, c) {
   return c;
 }
 function ya(a, c, b, e, d, f, g = 0) {
-  const k = e && e.constructor === Array;
-  var h = k ? e.shift() : e;
-  if (!h) {
+  const h = e && e.constructor === Array;
+  var k = h ? e.shift() : e;
+  if (!k) {
     return this.export(a, c, d, f + 1);
   }
-  if ((h = a((c ? c + "." : "") + (g + 1) + "." + b, JSON.stringify(h))) && h.then) {
+  if ((k = a((c ? c + "." : "") + (g + 1) + "." + b, JSON.stringify(k))) && k.then) {
     const l = this;
-    return h.then(function() {
-      return ya.call(l, a, c, b, k ? e : null, d, f, g + 1);
+    return k.then(function() {
+      return ya.call(l, a, c, b, h ? e : null, d, f, g + 1);
     });
   }
-  return ya.call(this, a, c, b, k ? e : null, d, f, g + 1);
+  return ya.call(this, a, c, b, h ? e : null, d, f, g + 1);
 }
 function za(a, c) {
   let b = "";
@@ -457,14 +457,14 @@ function za(a, c) {
     a = e[0];
     const d = e[1];
     let f = "";
-    for (let g = 0, k; g < d.length; g++) {
-      k = d[g] || [""];
-      let h = "";
-      for (let l = 0; l < k.length; l++) {
-        h += (h ? "," : "") + ("string" === c ? '"' + k[l] + '"' : k[l]);
+    for (let g = 0, h; g < d.length; g++) {
+      h = d[g] || [""];
+      let k = "";
+      for (let l = 0; l < h.length; l++) {
+        k += (k ? "," : "") + ("string" === c ? '"' + h[l] + '"' : h[l]);
       }
-      h = "[" + h + "]";
-      f += (f ? "," : "") + h;
+      k = "[" + k + "]";
+      f += (f ? "," : "") + k;
     }
     f = '["' + a + '",[' + f + "]]";
     b += (b ? "," : "") + f;
@@ -478,8 +478,8 @@ function za(a, c) {
       c -= g.length;
     } else {
       c = g[e ? "splice" : "slice"](c, b);
-      const k = c.length;
-      if (k && (d = d.length ? d.concat(c) : c, b -= k, e && (a.length -= k), !b)) {
+      const h = c.length;
+      if (h && (d = d.length ? d.concat(c) : c, b -= h, e && (a.length -= h), !b)) {
         break;
       }
       c = 0;
@@ -514,13 +514,13 @@ function R(a) {
     if ("indexOf" === e) {
       return function(d) {
         let f = 0;
-        for (let g = 0, k, h; g < c.index.length; g++) {
-          k = c.index[g];
-          h = k.indexOf(d);
-          if (0 <= h) {
-            return f + h;
+        for (let g = 0, h, k; g < c.index.length; g++) {
+          h = c.index[g];
+          k = h.indexOf(d);
+          if (0 <= k) {
+            return f + k;
           }
-          f += k.length;
+          f += h.length;
         }
         return -1;
       };
@@ -570,7 +570,7 @@ function S(a = 8) {
   if (!this || this.constructor !== S) {
     return new S(a);
   }
-  this.index = B();
+  this.index = A();
   this.h = [];
   this.size = 0;
   32 < a ? (this.B = Ba, this.A = BigInt(a)) : (this.B = Ca, this.A = a);
@@ -588,7 +588,7 @@ function T(a = 8) {
   if (!this || this.constructor !== T) {
     return new T(a);
   }
-  this.index = B();
+  this.index = A();
   this.h = [];
   this.size = 0;
   32 < a ? (this.B = Ba, this.A = BigInt(a)) : (this.B = Ca, this.A = a);
@@ -598,35 +598,35 @@ T.prototype.add = function(a) {
   let b = this.index[c];
   b ? (c = b.size, b.add(a), (c -= b.size) && this.size++) : (this.index[c] = b = new Set([a]), this.h.push(b), this.size++);
 };
-v = S.prototype;
-v.has = T.prototype.has = function(a) {
+t = S.prototype;
+t.has = T.prototype.has = function(a) {
   const c = this.index[this.B(a)];
   return c && c.has(a);
 };
-v.delete = T.prototype.delete = function(a) {
+t.delete = T.prototype.delete = function(a) {
   const c = this.index[this.B(a)];
   c && c.delete(a) && this.size--;
 };
-v.clear = T.prototype.clear = function() {
-  this.index = B();
+t.clear = T.prototype.clear = function() {
+  this.index = A();
   this.h = [];
   this.size = 0;
 };
-v.values = T.prototype.values = function*() {
+t.values = T.prototype.values = function*() {
   for (let a = 0; a < this.h.length; a++) {
     for (let c of this.h[a].values()) {
       yield c;
     }
   }
 };
-v.keys = T.prototype.keys = function*() {
+t.keys = T.prototype.keys = function*() {
   for (let a = 0; a < this.h.length; a++) {
     for (let c of this.h[a].keys()) {
       yield c;
     }
   }
 };
-v.entries = T.prototype.entries = function*() {
+t.entries = T.prototype.entries = function*() {
   for (let a = 0; a < this.h.length; a++) {
     for (let c of this.h[a].entries()) {
       yield c;
@@ -661,55 +661,55 @@ function Ba(a) {
   return b;
 }
 ;U.prototype.add = function(a, c, b) {
-  H(a) && (c = a, a = ba(c, this.key));
+  G(a) && (c = a, a = ba(c, this.key));
   if (c && (a || 0 === a)) {
     if (!b && this.reg.has(a)) {
       return this.update(a, c);
     }
-    for (let k = 0, h; k < this.field.length; k++) {
-      h = this.D[k];
-      var e = this.index.get(this.field[k]);
-      if ("function" === typeof h) {
-        var d = h(c);
+    for (let h = 0, k; h < this.field.length; h++) {
+      k = this.F[h];
+      var e = this.index.get(this.field[h]);
+      if ("function" === typeof k) {
+        var d = k(c);
         d && e.add(a, d, !1, !0);
       } else {
-        if (d = h.I, !d || d(c)) {
-          h.constructor === String ? h = ["" + h] : F(h) && (h = [h]), Da(c, h, this.J, 0, e, a, h[0], b);
+        if (d = k.I, !d || d(c)) {
+          k.constructor === String ? k = ["" + k] : D(k) && (k = [k]), Da(c, k, this.J, 0, e, a, k[0], b);
         }
       }
     }
     if (this.tag) {
-      for (e = 0; e < this.F.length; e++) {
-        var f = this.F[e], g = this.R[e];
+      for (e = 0; e < this.D.length; e++) {
+        var f = this.D[e], g = this.R[e];
         d = this.tag.get(g);
-        let k = B();
+        let h = A();
         if ("function" === typeof f) {
           if (f = f(c), !f) {
             continue;
           }
         } else {
-          const h = f.I;
-          if (h && !h(c)) {
+          const k = f.I;
+          if (k && !k(c)) {
             continue;
           }
           f.constructor === String && (f = "" + f);
           f = ba(c, f);
         }
         if (d && f) {
-          F(f) && (f = [f]);
-          for (let h = 0, l, n; h < f.length; h++) {
-            if (l = f[h], !k[l] && (k[l] = 1, (g = d.get(l)) ? n = g : d.set(l, n = []), !b || !n.includes(a))) {
-              if (n.length === 2 ** 31 - 1) {
-                g = new R(n);
+          D(f) && (f = [f]);
+          for (let k = 0, l, m; k < f.length; k++) {
+            if (l = f[k], !h[l] && (h[l] = 1, (g = d.get(l)) ? m = g : d.set(l, m = []), !b || !m.includes(a))) {
+              if (m.length === 2 ** 31 - 1) {
+                g = new R(m);
                 if (this.fastupdate) {
-                  for (let m of this.reg.values()) {
-                    m.includes(n) && (m[m.indexOf(n)] = g);
+                  for (let n of this.reg.values()) {
+                    n.includes(m) && (n[n.indexOf(m)] = g);
                   }
                 }
-                d.set(l, n = g);
+                d.set(l, m = g);
               }
-              n.push(a);
-              this.fastupdate && ((g = this.reg.get(a)) ? g.push(n) : this.reg.set(a, [n]));
+              m.push(a);
+              this.fastupdate && ((g = this.reg.get(a)) ? g.push(m) : this.reg.set(a, [m]));
             }
           }
         } else {
@@ -718,29 +718,29 @@ function Ba(a) {
       }
     }
     if (this.store && (!b || !this.store.has(a))) {
-      let k;
+      let h;
       if (this.C) {
-        k = B();
-        for (let h = 0, l; h < this.C.length; h++) {
-          l = this.C[h];
+        h = A();
+        for (let k = 0, l; k < this.C.length; k++) {
+          l = this.C[k];
           if ((b = l.I) && !b(c)) {
             continue;
           }
-          let n;
+          let m;
           if ("function" === typeof l) {
-            n = l(c);
-            if (!n) {
+            m = l(c);
+            if (!m) {
               continue;
             }
             l = [l.V];
-          } else if (F(l) || l.constructor === String) {
-            k[l] = c[l];
+          } else if (D(l) || l.constructor === String) {
+            h[l] = c[l];
             continue;
           }
-          Ea(c, k, l, 0, l[0], n);
+          Ea(c, h, l, 0, l[0], m);
         }
       }
-      this.store.set(a, k || c);
+      this.store.set(a, h || c);
     }
     this.worker && (this.fastupdate || this.reg.add(a));
   }
@@ -756,11 +756,11 @@ function Ea(a, c, b, e, d, f) {
         Ea(a, c, b, e, d);
       }
     } else {
-      c = c[d] || (c[d] = B()), d = b[++e], Ea(a, c, b, e, d);
+      c = c[d] || (c[d] = A()), d = b[++e], Ea(a, c, b, e, d);
     }
   }
 }
-function Da(a, c, b, e, d, f, g, k) {
+function Da(a, c, b, e, d, f, g, h) {
   if (a = a[g]) {
     if (e === c.length - 1) {
       if (a.constructor === Array) {
@@ -772,14 +772,14 @@ function Da(a, c, b, e, d, f, g, k) {
         }
         a = a.join(" ");
       }
-      d.add(f, a, k, !0);
+      d.add(f, a, h, !0);
     } else {
       if (a.constructor === Array) {
         for (g = 0; g < a.length; g++) {
-          Da(a, c, b, e, d, f, g, k);
+          Da(a, c, b, e, d, f, g, h);
         }
       } else {
-        g = c[++e], Da(a, c, b, e, d, f, g, k);
+        g = c[++e], Da(a, c, b, e, d, f, g, h);
       }
     }
   } else {
@@ -787,77 +787,77 @@ function Da(a, c, b, e, d, f, g, k) {
   }
 }
 ;function Fa(a, c, b, e, d, f, g) {
-  const k = a.length;
-  let h = [], l, n;
-  l = B();
-  for (let m = 0, q, p, r, u; m < c; m++) {
-    for (let t = 0; t < k; t++) {
-      if (r = a[t], m < r.length && (q = r[m])) {
-        for (let w = 0; w < q.length; w++) {
-          p = q[w];
-          (n = l[p]) ? l[p]++ : (n = 0, l[p] = 1);
-          u = h[n] || (h[n] = []);
+  const h = a.length;
+  let k = [], l, m;
+  l = A();
+  for (let n = 0, p, r, q, u; n < c; n++) {
+    for (let v = 0; v < h; v++) {
+      if (q = a[v], n < q.length && (p = q[n])) {
+        for (let w = 0; w < p.length; w++) {
+          r = p[w];
+          (m = l[r]) ? l[r]++ : (m = 0, l[r] = 1);
+          u = k[m] || (k[m] = []);
           if (!g) {
-            let y = m + (t || !d ? 0 : f || 0);
-            u = u[y] || (u[y] = []);
+            let x = n + (v || !d ? 0 : f || 0);
+            u = u[x] || (u[x] = []);
           }
-          u.push(p);
-          if (g && b && n === k - 1 && u.length - e === b) {
+          u.push(r);
+          if (g && b && m === h - 1 && u.length - e === b) {
             return e ? u.slice(e) : u;
           }
         }
       }
     }
   }
-  if (a = h.length) {
+  if (a = k.length) {
     if (d) {
-      h = 1 < h.length ? Ga(h, b, e, g, f) : (h = h[0]).length > b || e ? h.slice(e, b + e) : h;
+      k = 1 < k.length ? Ga(k, b, e, g, f) : (k = k[0]).length > b || e ? k.slice(e, b + e) : k;
     } else {
-      if (a < k) {
+      if (a < h) {
         return [];
       }
-      h = h[a - 1];
+      k = k[a - 1];
       if (b || e) {
         if (g) {
-          if (h.length > b || e) {
-            h = h.slice(e, b + e);
+          if (k.length > b || e) {
+            k = k.slice(e, b + e);
           }
         } else {
           d = [];
-          for (let m = 0, q; m < h.length; m++) {
-            if (q = h[m], q.length > e) {
-              e -= q.length;
+          for (let n = 0, p; n < k.length; n++) {
+            if (p = k[n], p.length > e) {
+              e -= p.length;
             } else {
-              if (q.length > b || e) {
-                q = q.slice(e, b + e), b -= q.length, e && (e -= q.length);
+              if (p.length > b || e) {
+                p = p.slice(e, b + e), b -= p.length, e && (e -= p.length);
               }
-              d.push(q);
+              d.push(p);
               if (!b) {
                 break;
               }
             }
           }
-          h = 1 < d.length ? [].concat.apply([], d) : d[0];
+          k = 1 < d.length ? [].concat.apply([], d) : d[0];
         }
       }
     }
   }
-  return h;
+  return k;
 }
 function Ga(a, c, b, e, d) {
-  const f = [], g = B();
-  let k;
-  var h = a.length;
+  const f = [], g = A();
+  let h;
+  var k = a.length;
   let l;
   if (e) {
-    for (d = h - 1; 0 <= d; d--) {
+    for (d = k - 1; 0 <= d; d--) {
       if (l = (e = a[d]) && e.length) {
-        for (h = 0; h < l; h++) {
-          if (k = e[h], !g[k]) {
-            if (g[k] = 1, b) {
+        for (k = 0; k < l; k++) {
+          if (h = e[k], !g[h]) {
+            if (g[h] = 1, b) {
               b--;
             } else {
-              if (f.push(k), f.length === c) {
+              if (f.push(h), f.length === c) {
                 return f;
               }
             }
@@ -866,18 +866,18 @@ function Ga(a, c, b, e, d) {
       }
     }
   } else {
-    for (let n = h - 1, m, q = 0; 0 <= n; n--) {
-      m = a[n];
-      for (let p = 0; p < m.length; p++) {
-        if (l = (e = m[p]) && e.length) {
-          for (let r = 0; r < l; r++) {
-            if (k = e[r], !g[k]) {
-              if (g[k] = 1, b) {
+    for (let m = k - 1, n, p = 0; 0 <= m; m--) {
+      n = a[m];
+      for (let r = 0; r < n.length; r++) {
+        if (l = (e = n[r]) && e.length) {
+          for (let q = 0; q < l; q++) {
+            if (h = e[q], !g[h]) {
+              if (g[h] = 1, b) {
                 b--;
               } else {
-                let u = (p + (n < h - 1 ? d || 0 : 0)) / (n + 1) | 0;
-                (f[u] || (f[u] = [])).push(k);
-                if (++q === c) {
+                let u = (r + (m < k - 1 ? d || 0 : 0)) / (m + 1) | 0;
+                (f[u] || (f[u] = [])).push(h);
+                if (++p === c) {
                   return f;
                 }
               }
@@ -890,11 +890,11 @@ function Ga(a, c, b, e, d) {
   return f;
 }
 function Ha(a, c, b) {
-  const e = B(), d = [];
+  const e = A(), d = [];
   for (let f = 0, g; f < c.length; f++) {
     g = c[f];
-    for (let k = 0; k < g.length; k++) {
-      e[g[k]] = 1;
+    for (let h = 0; h < g.length; h++) {
+      e[g[h]] = 1;
     }
   }
   if (b) {
@@ -902,9 +902,9 @@ function Ha(a, c, b) {
       g = a[f], e[g] && (d.push(g), e[g] = 0);
     }
   } else {
-    for (let f = 0, g, k; f < a.result.length; f++) {
+    for (let f = 0, g, h; f < a.result.length; f++) {
       for (g = a.result[f], c = 0; c < g.length; c++) {
-        k = g[c], e[k] && ((d[f] || (d[f] = [])).push(k), e[k] = 0);
+        h = g[c], e[h] && ((d[f] || (d[f] = [])).push(h), e[h] = 0);
       }
     }
   }
@@ -918,21 +918,21 @@ function Ha(a, c, b) {
     return a = a[0], a = b || a.length > c ? c ? a.slice(b, b + c) : a.slice(b) : a, e ? V.call(this, a) : a;
   }
   let d = [];
-  for (let f = 0, g, k; f < a.length; f++) {
-    if ((g = a[f]) && (k = g.length)) {
+  for (let f = 0, g, h; f < a.length; f++) {
+    if ((g = a[f]) && (h = g.length)) {
       if (b) {
-        if (b >= k) {
-          b -= k;
+        if (b >= h) {
+          b -= h;
           continue;
         }
-        b < k && (g = c ? g.slice(b, b + c) : g.slice(b), k = g.length, b = 0);
+        b < h && (g = c ? g.slice(b, b + c) : g.slice(b), h = g.length, b = 0);
       }
-      k > c && (g = g.slice(0, c), k = c);
-      if (!d.length && k >= c) {
+      h > c && (g = g.slice(0, c), h = c);
+      if (!d.length && h >= c) {
         return e ? V.call(this, g) : g;
       }
       d.push(g);
-      c -= k;
+      c -= h;
       if (!c) {
         break;
       }
@@ -944,48 +944,48 @@ function Ha(a, c, b) {
 ;function Ja(a, c, b) {
   var e = b[0];
   if (e.then) {
-    return Promise.all(b).then(function(n) {
-      return a[c].apply(a, n);
+    return Promise.all(b).then(function(m) {
+      return a[c].apply(a, m);
     });
   }
   if (e[0] && e[0].index) {
     return a[c].apply(a, e);
   }
   e = [];
-  let d = [], f = 0, g = 0, k, h, l;
-  for (let n = 0, m; n < b.length; n++) {
-    if (m = b[n]) {
-      let q;
-      if (m.constructor === W) {
-        q = m.result;
-      } else if (m.constructor === Array) {
-        q = m;
+  let d = [], f = 0, g = 0, h, k, l;
+  for (let m = 0, n; m < b.length; m++) {
+    if (n = b[m]) {
+      let p;
+      if (n.constructor === W) {
+        p = n.result;
+      } else if (n.constructor === Array) {
+        p = n;
       } else {
-        if (f = m.limit || 0, g = m.offset || 0, l = m.suggest, h = m.resolve, k = m.enrich && h, m.index) {
-          m.resolve = !1, m.enrich = !1, q = m.index.search(m).result, m.resolve = h, m.enrich = k;
-        } else if (m.and) {
-          q = a.and(m.and);
-        } else if (m.or) {
-          q = a.or(m.or);
-        } else if (m.xor) {
-          q = a.xor(m.xor);
-        } else if (m.not) {
-          q = a.not(m.not);
+        if (f = n.limit || 0, g = n.offset || 0, l = n.suggest, k = n.resolve, h = n.enrich && k, n.index) {
+          n.resolve = !1, n.enrich = !1, p = n.index.search(n).result, n.resolve = k, n.enrich = h;
+        } else if (n.and) {
+          p = a.and(n.and);
+        } else if (n.or) {
+          p = a.or(n.or);
+        } else if (n.xor) {
+          p = a.xor(n.xor);
+        } else if (n.not) {
+          p = a.not(n.not);
         } else {
           continue;
         }
       }
-      if (q.then) {
-        d.push(q);
-      } else if (q.length) {
-        e[n] = q;
+      if (p.then) {
+        d.push(p);
+      } else if (p.length) {
+        e[m] = p;
       } else if (!l && ("and" === c || "xor" === c)) {
         e = [];
         break;
       }
     }
   }
-  return {O:e, P:d, limit:f, offset:g, enrich:k, resolve:h, suggest:l};
+  return {O:e, P:d, limit:f, offset:g, enrich:h, resolve:k, suggest:l};
 }
 ;W.prototype.or = function() {
   const {O:a, P:c, limit:b, offset:e, enrich:d, resolve:f} = Ja(this, "or", arguments);
@@ -994,10 +994,10 @@ function Ha(a, c, b) {
 function Ka(a, c, b, e, d, f) {
   if (c.length) {
     const g = this;
-    return Promise.all(c).then(function(k) {
+    return Promise.all(c).then(function(h) {
       a = [];
-      for (let h = 0, l; h < k.length; h++) {
-        (l = k[h]).length && (a[h] = l);
+      for (let k = 0, l; k < h.length; k++) {
+        (l = h[k]).length && (a[k] = l);
       }
       return Ka.call(g, a, [], b, e, d, f);
     });
@@ -1012,20 +1012,20 @@ function Ka(a, c, b, e, d, f) {
     f && (a = !!f.suggest, d = f.resolve, c = f.limit, b = f.offset, e = f.enrich && d);
   }
   if (a) {
-    const {O:f, P:g, limit:k, offset:h, enrich:l, resolve:n, suggest:m} = Ja(this, "and", arguments);
-    return La.call(this, f, g, k, h, l, n, m);
+    const {O:f, P:g, limit:h, offset:k, enrich:l, resolve:m, suggest:n} = Ja(this, "and", arguments);
+    return La.call(this, f, g, h, k, l, m, n);
   }
   return d ? this.resolve(c, b, e) : this;
 };
 function La(a, c, b, e, d, f, g) {
   if (c.length) {
-    const k = this;
-    return Promise.all(c).then(function(h) {
+    const h = this;
+    return Promise.all(c).then(function(k) {
       a = [];
-      for (let l = 0, n; l < h.length; l++) {
-        (n = h[l]).length && (a[l] = n);
+      for (let l = 0, m; l < k.length; l++) {
+        (m = k[l]).length && (a[l] = m);
       }
-      return La.call(k, a, [], b, e, d, f, g);
+      return La.call(h, a, [], b, e, d, f, g);
     });
   }
   if (a.length) {
@@ -1048,13 +1048,13 @@ function La(a, c, b, e, d, f, g) {
 };
 function Ma(a, c, b, e, d, f, g) {
   if (c.length) {
-    const k = this;
-    return Promise.all(c).then(function(h) {
+    const h = this;
+    return Promise.all(c).then(function(k) {
       a = [];
-      for (let l = 0, n; l < h.length; l++) {
-        (n = h[l]).length && (a[l] = n);
+      for (let l = 0, m; l < k.length; l++) {
+        (m = k[l]).length && (a[l] = m);
       }
-      return Ma.call(k, a, [], b, e, d, f, g);
+      return Ma.call(h, a, [], b, e, d, f, g);
     });
   }
   if (a.length) {
@@ -1069,38 +1069,38 @@ function Ma(a, c, b, e, d, f, g) {
   return f ? this.resolve(b, e, d) : this;
 }
 function Na(a, c, b, e, d) {
-  const f = [], g = B();
-  let k = 0;
-  for (let h = 0, l; h < a.length; h++) {
-    if (l = a[h]) {
-      k < l.length && (k = l.length);
-      for (let n = 0, m; n < l.length; n++) {
-        if (m = l[n]) {
-          for (let q = 0, p; q < m.length; q++) {
-            p = m[q], g[p] = g[p] ? 2 : 1;
+  const f = [], g = A();
+  let h = 0;
+  for (let k = 0, l; k < a.length; k++) {
+    if (l = a[k]) {
+      h < l.length && (h = l.length);
+      for (let m = 0, n; m < l.length; m++) {
+        if (n = l[m]) {
+          for (let p = 0, r; p < n.length; p++) {
+            r = n[p], g[r] = g[r] ? 2 : 1;
           }
         }
       }
     }
   }
-  for (let h = 0, l, n = 0; h < k; h++) {
-    for (let m = 0, q; m < a.length; m++) {
-      if (q = a[m]) {
-        if (l = q[h]) {
-          for (let p = 0, r; p < l.length; p++) {
-            if (r = l[p], 1 === g[r]) {
+  for (let k = 0, l, m = 0; k < h; k++) {
+    for (let n = 0, p; n < a.length; n++) {
+      if (p = a[n]) {
+        if (l = p[k]) {
+          for (let r = 0, q; r < l.length; r++) {
+            if (q = l[r], 1 === g[q]) {
               if (b) {
                 b--;
               } else {
                 if (e) {
-                  if (f.push(r), f.length === c) {
+                  if (f.push(q), f.length === c) {
                     return f;
                   }
                 } else {
-                  const u = h + (m ? d : 0);
+                  const u = k + (n ? d : 0);
                   f[u] || (f[u] = []);
-                  f[u].push(r);
-                  if (++n === c) {
+                  f[u].push(q);
+                  if (++m === c) {
                     return f;
                   }
                 }
@@ -1119,13 +1119,13 @@ function Na(a, c, b, e, d) {
 };
 function Oa(a, c, b, e, d, f, g) {
   if (c.length) {
-    const k = this;
-    return Promise.all(c).then(function(h) {
+    const h = this;
+    return Promise.all(c).then(function(k) {
       a = [];
-      for (let l = 0, n; l < h.length; l++) {
-        (n = h[l]).length && (a[l] = n);
+      for (let l = 0, m; l < k.length; l++) {
+        (m = k[l]).length && (a[l] = m);
       }
-      return Oa.call(k, a, [], b, e, d, f, g);
+      return Oa.call(h, a, [], b, e, d, f, g);
     });
   }
   if (a.length && this.result.length) {
@@ -1138,10 +1138,10 @@ function Oa(a, c, b, e, d, f, g) {
 function Pa(a, c, b, e) {
   const d = [];
   a = new Set(a.flat().flat());
-  for (let f = 0, g, k = 0; f < this.result.length; f++) {
+  for (let f = 0, g, h = 0; f < this.result.length; f++) {
     if (g = this.result[f]) {
-      for (let h = 0, l; h < g.length; h++) {
-        if (l = g[h], !a.has(l)) {
+      for (let k = 0, l; k < g.length; k++) {
+        if (l = g[k], !a.has(l)) {
           if (b) {
             b--;
           } else {
@@ -1150,7 +1150,7 @@ function Pa(a, c, b, e) {
                 return d;
               }
             } else {
-              if (d[f] || (d[f] = []), d[f].push(l), ++k === c) {
+              if (d[f] || (d[f] = []), d[f].push(l), ++h === c) {
                 return d;
               }
             }
@@ -1212,264 +1212,274 @@ W.prototype.resolve = function(a, c, b) {
   this.result = this.index = null;
   return e.length ? ("object" === typeof a && (b = a.enrich, c = a.offset, a = a.limit), Ia.call(d, e, a || 100, c, b)) : e;
 };
-B();
+A();
 U.prototype.search = function(a, c, b, e) {
-  b || (!c && H(a) ? (b = a, a = "") : H(c) && (b = c, c = 0));
+  b || (!c && G(a) ? (b = a, a = "") : G(c) && (b = c, c = 0));
   let d = [];
-  var f = [], g;
+  var f = [];
+  let g;
+  var h;
   let k;
-  let h, l;
+  let l, m;
   let n = 0;
-  var m = !0;
-  let q;
+  var p = !0;
+  let r;
   if (b) {
     b.constructor === Array && (b = {index:b});
     a = b.query || a;
-    var p = b.pluck;
+    g = b.pluck;
     k = b.merge;
-    h = p || b.field || (h = b.index) && (h.index ? null : h);
-    l = this.tag && b.tag;
-    var r = b.suggest;
-    m = !1 !== b.resolve;
-    if (!m && !p) {
-      if (h = h || this.field) {
-        F(h) ? p = h : (h.constructor === Array && 1 === h.length && (h = h[0]), p = h.field || h.index);
+    l = g || b.field || (l = b.index) && (l.index ? null : l);
+    m = this.tag && b.tag;
+    var q = b.suggest;
+    p = !1 !== b.resolve;
+    if (!p && !g) {
+      if (l = l || this.field) {
+        D(l) ? g = l : (l.constructor === Array && 1 === l.length && (l = l[0]), g = l.field || l.index);
       }
-      if (!p) {
+      if (!g) {
         throw Error("Apply resolver on document search requires either the option 'pluck' to be set or just select a single field name in your query.");
       }
     }
-    this.store && b.enrich && !m && console.warn("Enrich results can only be done on a final resolver task or when calling .resolve({ enrich: true })");
-    q = (g = this.store && b.enrich && m) && b.highlight;
+    this.store && b.enrich && !p && console.warn("Enrich results can only be done on a final resolver task or when calling .resolve({ enrich: true })");
+    r = (h = this.store && b.enrich && p) && b.highlight;
     c = b.limit || c;
     var u = b.offset || 0;
     c || (c = 100);
-    if (l && (!this.db || !e)) {
-      l.constructor !== Array && (l = [l]);
-      var t = [];
-      for (let z = 0, x; z < l.length; z++) {
-        x = l[z];
-        if (F(x)) {
+    if (m && (!this.db || !e)) {
+      m.constructor !== Array && (m = [m]);
+      var v = [];
+      for (let B = 0, y; B < m.length; B++) {
+        y = m[B];
+        if (D(y)) {
           throw Error("A tag option can't be a string, instead it needs a { field: tag } format.");
         }
-        if (x.field && x.tag) {
-          var w = x.tag;
+        if (y.field && y.tag) {
+          var w = y.tag;
           if (w.constructor === Array) {
-            for (var y = 0; y < w.length; y++) {
-              t.push(x.field, w[y]);
+            for (var x = 0; x < w.length; x++) {
+              v.push(y.field, w[x]);
             }
           } else {
-            t.push(x.field, w);
+            v.push(y.field, w);
           }
         } else {
-          w = Object.keys(x);
-          for (let C = 0, G, D; C < w.length; C++) {
-            if (G = w[C], D = x[G], D.constructor === Array) {
-              for (y = 0; y < D.length; y++) {
-                t.push(G, D[y]);
+          w = Object.keys(y);
+          for (let C = 0, M, E; C < w.length; C++) {
+            if (M = w[C], E = y[M], E.constructor === Array) {
+              for (x = 0; x < E.length; x++) {
+                v.push(M, E[x]);
               }
             } else {
-              t.push(G, D);
+              v.push(M, E);
             }
           }
         }
       }
-      if (!t.length) {
+      if (!v.length) {
         throw Error("Your tag definition within the search options is probably wrong. No valid tags found.");
       }
-      l = t;
+      m = v;
       if (!a) {
-        m = [];
-        if (t.length) {
-          for (f = 0; f < t.length; f += 2) {
+        p = [];
+        if (v.length) {
+          for (f = 0; f < v.length; f += 2) {
             if (this.db) {
-              p = this.index.get(t[f]);
-              if (!p) {
-                console.warn("Tag '" + t[f] + ":" + t[f + 1] + "' will be skipped because there is no field '" + t[f] + "'.");
+              q = this.index.get(v[f]);
+              if (!q) {
+                console.warn("Tag '" + v[f] + ":" + v[f + 1] + "' will be skipped because there is no field '" + v[f] + "'.");
                 continue;
               }
-              m.push(p = p.db.tag(t[f + 1], c, u, g));
+              p.push(q = q.db.tag(v[f + 1], c, u, h));
             } else {
-              p = Qa.call(this, t[f], t[f + 1], c, u, g);
+              q = Qa.call(this, v[f], v[f + 1], c, u, h);
             }
-            d.push({field:t[f], tag:t[f + 1], result:p});
+            d.push({field:v[f], tag:v[f + 1], result:q});
           }
         }
-        return m.length ? Promise.all(m).then(function(z) {
-          for (let x = 0; x < z.length; x++) {
-            d[x].result = z[x];
+        return p.length ? Promise.all(p).then(function(B) {
+          for (let y = 0; y < B.length; y++) {
+            d[y].result = B[y];
           }
           return d;
         }) : d;
       }
     }
-    h && h.constructor !== Array && (h = [h]);
+    l && l.constructor !== Array && (l = [l]);
   }
-  h || (h = this.field);
-  t = !e && (this.worker || this.db) && [];
-  let E;
-  for (let z = 0, x, C, G; z < h.length; z++) {
-    C = h[z];
-    if (this.db && this.tag && !this.D[z]) {
+  l || (l = this.field);
+  v = !e && (this.worker || this.db) && [];
+  let F;
+  for (let B = 0, y, C, M; B < l.length; B++) {
+    C = l[B];
+    if (this.db && this.tag && !this.F[B]) {
       continue;
     }
-    let D;
-    F(C) || (D = C, C = D.field, a = D.query || a, c = D.limit || c, u = D.offset || u, r = D.suggest || r, g = this.store && (D.enrich || g));
+    let E;
+    D(C) || (E = C, C = E.field, a = E.query || a, c = E.limit || c, u = E.offset || u, q = E.suggest || q, h = this.store && (E.enrich || h));
     if (e) {
-      x = e[z];
+      y = e[B];
     } else {
-      if (w = D || b, y = this.index.get(C), l && (this.db && (w.tag = l, E = y.db.support_tag_search, w.field = h), E || (w.enrich = !1)), t) {
-        t[z] = y.search(a, c, w);
-        w && g && (w.enrich = g);
+      if (w = E || b, x = this.index.get(C), m && (this.db && (w.tag = m, F = x.db.support_tag_search, w.field = l), F || (w.enrich = !1)), v) {
+        v[B] = x.search(a, c, w);
+        w && h && (w.enrich = h);
         continue;
       } else {
-        x = y.search(a, c, w), w && g && (w.enrich = g);
+        y = x.search(a, c, w), w && h && (w.enrich = h);
       }
     }
-    G = x && (m ? x.length : x.result.length);
-    if (l && G) {
+    M = y && (p ? y.length : y.result.length);
+    if (m && M) {
       w = [];
-      y = 0;
+      x = 0;
       if (this.db && e) {
-        if (!E) {
-          for (let K = h.length; K < e.length; K++) {
-            let L = e[K];
-            if (L && L.length) {
-              y++, w.push(L);
-            } else if (!r) {
-              return m ? d : new W(d);
+        if (!F) {
+          for (let J = l.length; J < e.length; J++) {
+            let K = e[J];
+            if (K && K.length) {
+              x++, w.push(K);
+            } else if (!q) {
+              return p ? d : new W(d);
             }
           }
         }
       } else {
-        for (let K = 0, L, rb; K < l.length; K += 2) {
-          L = this.tag.get(l[K]);
-          if (!L) {
-            if (console.warn("Tag '" + l[K] + ":" + l[K + 1] + "' will be skipped because there is no field '" + l[K] + "'."), r) {
+        for (let J = 0, K, rb; J < m.length; J += 2) {
+          K = this.tag.get(m[J]);
+          if (!K) {
+            if (console.warn("Tag '" + m[J] + ":" + m[J + 1] + "' will be skipped because there is no field '" + m[J] + "'."), q) {
               continue;
             } else {
-              return m ? d : new W(d);
+              return p ? d : new W(d);
             }
           }
-          if (rb = (L = L && L.get(l[K + 1])) && L.length) {
-            y++, w.push(L);
-          } else if (!r) {
-            return m ? d : new W(d);
+          if (rb = (K = K && K.get(m[J + 1])) && K.length) {
+            x++, w.push(K);
+          } else if (!q) {
+            return p ? d : new W(d);
           }
         }
       }
-      if (y) {
-        x = Ha(x, w, m);
-        G = x.length;
-        if (!G && !r) {
-          return m ? x : new W(x);
+      if (x) {
+        y = Ha(y, w, p);
+        M = y.length;
+        if (!M && !q) {
+          return p ? y : new W(y);
         }
-        y--;
+        x--;
       }
     }
-    if (G) {
-      f[n] = C, d.push(x), n++;
-    } else if (1 === h.length) {
-      return m ? d : new W(d);
+    if (M) {
+      f[n] = C, d.push(y), n++;
+    } else if (1 === l.length) {
+      return p ? d : new W(d);
     }
   }
-  if (t) {
-    if (this.db && l && l.length && !E) {
-      for (g = 0; g < l.length; g += 2) {
-        f = this.index.get(l[g]);
+  if (v) {
+    if (this.db && m && m.length && !F) {
+      for (h = 0; h < m.length; h += 2) {
+        f = this.index.get(m[h]);
         if (!f) {
-          if (console.warn("Tag '" + l[g] + ":" + l[g + 1] + "' was not found because there is no field '" + l[g] + "'."), r) {
+          if (console.warn("Tag '" + m[h] + ":" + m[h + 1] + "' was not found because there is no field '" + m[h] + "'."), q) {
             continue;
           } else {
-            return m ? d : new W(d);
+            return p ? d : new W(d);
           }
         }
-        t.push(f.db.tag(l[g + 1], c, u, !1));
+        v.push(f.db.tag(m[h + 1], c, u, !1));
       }
     }
-    const z = this;
-    return Promise.all(t).then(function(x) {
-      return x.length ? z.search(a, c, b, x) : x;
+    const B = this;
+    return Promise.all(v).then(function(y) {
+      return y.length ? B.search(a, c, b, y) : y;
     });
   }
   if (!n) {
-    return m ? d : new W(d);
+    return p ? d : new W(d);
   }
-  if (p && (!g || !this.store)) {
+  if (g && (!h || !this.store)) {
     return d[0];
   }
-  t = [];
+  v = [];
   for (u = 0; u < f.length; u++) {
-    r = d[u];
-    g && r.length && "undefined" === typeof r[0].doc && (this.db ? t.push(r = this.index.get(this.field[0]).db.enrich(r)) : r = V.call(this, r));
-    if (p) {
-      return m ? r : new W(r);
+    q = d[u];
+    h && q.length && "undefined" === typeof q[0].doc && (this.db ? v.push(q = this.index.get(this.field[0]).db.enrich(q)) : q = V.call(this, q));
+    if (g) {
+      return p ? r ? Ra(a, q, this.index, g, r) : q : new W(q);
     }
-    d[u] = {field:f[u], result:r};
+    d[u] = {field:f[u], result:q};
   }
-  if (g && this.db && t.length) {
-    const z = this;
-    return Promise.all(t).then(function(x) {
-      for (let C = 0; C < x.length; C++) {
-        d[C].result = x[C];
+  if (h && this.db && v.length) {
+    const B = this;
+    return Promise.all(v).then(function(y) {
+      for (let C = 0; C < y.length; C++) {
+        d[C].result = y[C];
       }
-      return k ? Ra(d) : q ? Sa(d, a, z.index, z.field, z.D, q) : d;
+      return k ? Sa(d) : r ? Ra(a, d, B.index, g, r) : d;
     });
   }
-  return k ? Ra(d) : q ? Sa(d, a, this.index, this.field, this.D, q) : d;
+  return k ? Sa(d) : r ? Ra(a, d, this.index, g, r) : d;
 };
-function Sa(a, c, b, e, d, f) {
-  let g, k, h;
-  for (let l = 0, n, m, q, p; l < a.length; l++) {
-    n = a[l].field;
-    if (!n) {
-      continue;
+function Ra(a, c, b, e, d) {
+  let f, g;
+  for (let k = 0, l, m, n; k < c.length; k++) {
+    let p;
+    if (e) {
+      p = c, n = e;
+    } else {
+      var h = c[k];
+      n = h.field;
+      if (!n) {
+        continue;
+      }
+      p = h.result;
     }
-    let r = a[l].result;
-    q = b.get(n);
-    m = q.encoder;
-    h = q.tokenize;
-    p = d[e.indexOf(n)];
-    m !== g && (g = m, k = g.encode(c));
-    for (let u = 0; u < r.length; u++) {
-      let t = "", w = ba(r[u].doc, p).split(/\s+/);
-      for (let y = 0, E, z; y < w.length; y++) {
-        E = w[y];
-        z = m.encode(E);
-        z = 1 < z.length ? z.join(" ") : z[0];
-        let x;
-        if (z && E) {
-          for (let C = 0, G; C < k.length; C++) {
-            if (G = k[C], "strict" === h) {
-              if (z === G) {
-                t += (t ? " " : "") + f.replace("$1", E);
-                x = !0;
+    m = b.get(n);
+    l = m.encoder;
+    h = m.tokenize;
+    l !== f && (f = l, g = f.encode(a));
+    for (let r = 0; r < p.length; r++) {
+      let q = "", u = ba(p[r].doc, n).split(/\s+/);
+      for (let v = 0, w, x; v < u.length; v++) {
+        w = u[v];
+        x = l.encode(w);
+        x = 1 < x.length ? x.join(" ") : x[0];
+        let F;
+        if (x && w) {
+          for (let B = 0, y; B < g.length; B++) {
+            if (y = g[B], "strict" === h) {
+              if (x === y) {
+                q += (q ? " " : "") + d.replace("$1", w);
+                F = !0;
                 break;
               }
             } else {
-              const D = z.indexOf(G);
-              if (-1 < D) {
-                t += (t ? " " : "") + E.substring(0, D) + f.replace("$1", E.substring(D, G.length)) + E.substring(D + G.length);
-                x = !0;
+              const C = x.indexOf(y);
+              if (-1 < C) {
+                q += (q ? " " : "") + w.substring(0, C) + d.replace("$1", w.substring(C, y.length)) + w.substring(C + y.length);
+                F = !0;
                 break;
               }
             }
           }
         }
-        x || (t += (t ? " " : "") + w[y]);
+        F || (q += (q ? " " : "") + u[v]);
       }
-      r[u].highlight = t;
+      p[r].highlight = q;
+    }
+    if (e) {
+      break;
     }
   }
-  return a;
+  return c;
 }
-function Ra(a) {
-  const c = [], b = B();
+function Sa(a) {
+  const c = [], b = A();
   for (let e = 0, d, f; e < a.length; e++) {
     d = a[e];
     f = d.result;
-    for (let g = 0, k, h, l; g < f.length; g++) {
-      h = f[g], "object" !== typeof h && (h = {id:h}), k = h.id, (l = b[k]) ? l.push(d.field) : (h.field = b[k] = [d.field], c.push(h));
+    for (let g = 0, h, k, l; g < f.length; g++) {
+      k = f[g], "object" !== typeof k && (k = {id:k}), h = k.id, (l = b[h]) ? l.push(d.field) : (k.field = b[h] = [d.field], c.push(k));
     }
   }
   return c;
@@ -1503,7 +1513,7 @@ function V(a) {
   }
   const c = a.document || a.doc || a;
   let b, e;
-  this.D = [];
+  this.F = [];
   this.field = [];
   this.J = [];
   this.key = (b = c.key || c.id) && Ta(b, this.J) || "id";
@@ -1521,7 +1531,7 @@ function V(a) {
   if (b = c.tag) {
     if ("string" === typeof b && (b = [b]), b.length) {
       this.tag = new Map();
-      this.F = [];
+      this.D = [];
       this.R = [];
       for (let d = 0, f, g; d < b.length; d++) {
         f = b[d];
@@ -1529,7 +1539,7 @@ function V(a) {
         if (!g) {
           throw Error("The tag field from the document descriptor is undefined.");
         }
-        f.custom ? this.F[d] = f.custom : (this.F[d] = Ta(g, this.J), f.filter && ("string" === typeof this.F[d] && (this.F[d] = new String(this.F[d])), this.F[d].I = f.filter));
+        f.custom ? this.D[d] = f.custom : (this.D[d] = Ta(g, this.J), f.filter && ("string" === typeof this.D[d] && (this.D[d] = new String(this.D[d])), this.D[d].I = f.filter));
         this.R[d] = g;
         this.tag.set(g, new Map());
       }
@@ -1545,9 +1555,9 @@ function V(a) {
       const d = this;
       return Promise.all(a).then(function(f) {
         let g = 0;
-        for (const k of d.index.entries()) {
-          const h = k[0];
-          k[1].then && d.index.set(h, f[g++]);
+        for (const h of d.index.entries()) {
+          const k = h[0];
+          h[1].then && d.index.set(k, f[g++]);
         }
         return d;
       });
@@ -1556,8 +1566,8 @@ function V(a) {
     a.db && (this.fastupdate = !1, this.mount(a.db));
   }
 }
-v = U.prototype;
-v.mount = function(a) {
+t = U.prototype;
+t.mount = function(a) {
   if (this.worker) {
     throw Error("You can't use Worker-Indexes on a persistent model. That would be useless, since each of the persistent model acts like Worker-Index by default (Master/Slave).");
   }
@@ -1577,16 +1587,16 @@ v.mount = function(a) {
   for (let d = 0, f, g; d < c.length; d++) {
     e.field = g = c[d];
     f = this.index.get(g);
-    const k = new a.constructor(a.id, e);
-    k.id = a.id;
-    b[d] = k.mount(f);
+    const h = new a.constructor(a.id, e);
+    h.id = a.id;
+    b[d] = h.mount(f);
     f.document = !0;
     d ? f.bypass = !0 : f.store = this.store;
   }
   this.db = !0;
   return Promise.all(b);
 };
-v.commit = async function(a, c) {
+t.commit = async function(a, c) {
   const b = [];
   for (const e of this.index.values()) {
     b.push(e.commit(a, c));
@@ -1594,7 +1604,7 @@ v.commit = async function(a, c) {
   await Promise.all(b);
   this.reg.clear();
 };
-v.destroy = function() {
+t.destroy = function() {
   const a = [];
   for (const c of this.index.values()) {
     a.push(c.destroy());
@@ -1604,22 +1614,22 @@ v.destroy = function() {
 function Ua(a, c) {
   const b = new Map();
   let e = c.index || c.field || c;
-  F(e) && (e = [e]);
+  D(e) && (e = [e]);
   for (let d = 0, f, g; d < e.length; d++) {
     f = e[d];
-    F(f) || (g = f, f = f.field);
-    g = H(g) ? Object.assign({}, a, g) : a;
+    D(f) || (g = f, f = f.field);
+    g = G(g) ? Object.assign({}, a, g) : a;
     if (this.worker) {
-      const k = new P(g);
-      b.set(f, k);
+      const h = new P(g);
+      b.set(f, h);
     }
     this.worker || b.set(f, new N(g, this.reg));
-    g.custom ? this.D[d] = g.custom : (this.D[d] = Ta(f, this.J), g.filter && ("string" === typeof this.D[d] && (this.D[d] = new String(this.D[d])), this.D[d].I = g.filter));
+    g.custom ? this.F[d] = g.custom : (this.F[d] = Ta(f, this.J), g.filter && ("string" === typeof this.F[d] && (this.F[d] = new String(this.F[d])), this.F[d].I = g.filter));
     this.field[d] = f;
   }
   if (this.C) {
     a = c.store;
-    F(a) && (a = [a]);
+    D(a) && (a = [a]);
     for (let d = 0, f, g; d < a.length; d++) {
       f = a[d], g = f.field || f, f.custom ? (this.C[d] = f.custom, f.custom.V = g) : (this.C[d] = Ta(g, this.J), f.filter && ("string" === typeof this.C[d] && (this.C[d] = new String(this.C[d])), this.C[d].I = f.filter));
     }
@@ -1635,14 +1645,14 @@ function Ta(a, c) {
   e < b.length && (b.length = e);
   return 1 < e ? b : b[0];
 }
-v.append = function(a, c) {
+t.append = function(a, c) {
   return this.add(a, c, !0);
 };
-v.update = function(a, c) {
+t.update = function(a, c) {
   return this.remove(a).add(a, c);
 };
-v.remove = function(a) {
-  H(a) && (a = ba(a, this.key));
+t.remove = function(a) {
+  G(a) && (a = ba(a, this.key));
   for (var c of this.index.values()) {
     c.remove(a, !0);
   }
@@ -1662,7 +1672,7 @@ v.remove = function(a) {
   this.cache && this.cache.remove(a);
   return this;
 };
-v.clear = function() {
+t.clear = function() {
   const a = [];
   for (const c of this.index.values()) {
     const b = c.clear();
@@ -1677,33 +1687,33 @@ v.clear = function() {
   this.cache && this.cache.clear();
   return a.length ? Promise.all(a) : this;
 };
-v.contain = function(a) {
+t.contain = function(a) {
   return this.db ? this.index.get(this.field[0]).db.has(a) : this.reg.has(a);
 };
-v.cleanup = function() {
+t.cleanup = function() {
   for (const a of this.index.values()) {
     a.cleanup();
   }
   return this;
 };
-v.get = function(a) {
+t.get = function(a) {
   return this.db ? this.index.get(this.field[0]).db.enrich(a).then(function(c) {
     return c[0] && c[0].doc || null;
   }) : this.store.get(a) || null;
 };
-v.set = function(a, c) {
+t.set = function(a, c) {
   "object" === typeof a && (c = a, a = ba(c, this.key));
   this.store.set(a, c);
   return this;
 };
-v.searchCache = Va;
-v.export = function(a, c, b = 0, e = 0) {
+t.searchCache = Va;
+t.export = function(a, c, b = 0, e = 0) {
   if (b < this.field.length) {
     const g = this.field[b];
     if ((c = this.index.get(g).export(a, g, b, e = 1)) && c.then) {
-      const k = this;
+      const h = this;
       return c.then(function() {
-        return k.export(a, g, b + 1);
+        return h.export(a, g, b + 1);
       });
     }
     return this.export(a, g, b + 1);
@@ -1730,7 +1740,7 @@ v.export = function(a, c, b = 0, e = 0) {
   }
   return ya.call(this, a, c, d, f, b, e);
 };
-v.import = function(a, c) {
+t.import = function(a, c) {
   var b = a.split(".");
   "json" === b[b.length - 1] && b.pop();
   const e = 2 < b.length ? b[0] : "";
@@ -1880,21 +1890,21 @@ N.prototype.add = function(a, c, b, e) {
     }
     c = this.encoder.encode(c);
     if (e = c.length) {
-      const l = B(), n = B(), m = this.depth, q = this.resolution;
-      for (let p = 0; p < e; p++) {
-        let r = c[this.rtl ? e - 1 - p : p];
-        var d = r.length;
-        if (d && (m || !n[r])) {
-          var f = this.score ? this.score(c, r, p, null, 0) : fb(q, e, p), g = "";
+      const l = A(), m = A(), n = this.depth, p = this.resolution;
+      for (let r = 0; r < e; r++) {
+        let q = c[this.rtl ? e - 1 - r : r];
+        var d = q.length;
+        if (d && (n || !m[q])) {
+          var f = this.score ? this.score(c, q, r, null, 0) : fb(p, e, r), g = "";
           switch(this.tokenize) {
             case "full":
               if (2 < d) {
-                for (let u = 0, t; u < d; u++) {
+                for (let u = 0, v; u < d; u++) {
                   for (f = d; f > u; f--) {
-                    g = r.substring(u, f);
-                    t = this.rtl ? d - 1 - u : u;
-                    var k = this.score ? this.score(c, r, p, g, t) : fb(q, e, p, d, t);
-                    gb(this, n, g, k, a, b);
+                    g = q.substring(u, f);
+                    v = this.rtl ? d - 1 - u : u;
+                    var h = this.score ? this.score(c, q, r, g, v) : fb(p, e, r, d, v);
+                    gb(this, m, g, h, a, b);
                   }
                 }
                 break;
@@ -1902,27 +1912,27 @@ N.prototype.add = function(a, c, b, e) {
             case "bidirectional":
             case "reverse":
               if (1 < d) {
-                for (k = d - 1; 0 < k; k--) {
-                  g = r[this.rtl ? d - 1 - k : k] + g;
-                  var h = this.score ? this.score(c, r, p, g, k) : fb(q, e, p, d, k);
-                  gb(this, n, g, h, a, b);
+                for (h = d - 1; 0 < h; h--) {
+                  g = q[this.rtl ? d - 1 - h : h] + g;
+                  var k = this.score ? this.score(c, q, r, g, h) : fb(p, e, r, d, h);
+                  gb(this, m, g, k, a, b);
                 }
                 g = "";
               }
             case "forward":
               if (1 < d) {
-                for (k = 0; k < d; k++) {
-                  g += r[this.rtl ? d - 1 - k : k], gb(this, n, g, f, a, b);
+                for (h = 0; h < d; h++) {
+                  g += q[this.rtl ? d - 1 - h : h], gb(this, m, g, f, a, b);
                 }
                 break;
               }
             default:
-              if (gb(this, n, r, f, a, b), m && 1 < e && p < e - 1) {
-                for (d = B(), g = this.U, f = r, k = Math.min(m + 1, this.rtl ? p + 1 : e - p), d[f] = 1, h = 1; h < k; h++) {
-                  if ((r = c[this.rtl ? e - 1 - p - h : p + h]) && !d[r]) {
-                    d[r] = 1;
-                    const u = this.score ? this.score(c, f, p, r, h - 1) : fb(g + (e / 2 > g ? 0 : 1), e, p, k - 1, h - 1), t = this.bidirectional && r > f;
-                    gb(this, l, t ? f : r, u, a, b, t ? r : f);
+              if (gb(this, m, q, f, a, b), n && 1 < e && r < e - 1) {
+                for (d = A(), g = this.U, f = q, h = Math.min(n + 1, this.rtl ? r + 1 : e - r), d[f] = 1, k = 1; k < h; k++) {
+                  if ((q = c[this.rtl ? e - 1 - r - k : r + k]) && !d[q]) {
+                    d[q] = 1;
+                    const u = this.score ? this.score(c, f, r, q, k - 1) : fb(g + (e / 2 > g ? 0 : 1), e, r, h - 1, k - 1), v = this.bidirectional && q > f;
+                    gb(this, l, v ? f : q, u, a, b, v ? q : f);
                   }
                 }
               }
@@ -1938,20 +1948,20 @@ N.prototype.add = function(a, c, b, e) {
   return this;
 };
 function gb(a, c, b, e, d, f, g) {
-  let k = g ? a.ctx : a.map, h;
-  if (!c[b] || g && !(h = c[b])[g]) {
-    if (g ? (c = h || (c[b] = B()), c[g] = 1, (h = k.get(g)) ? k = h : k.set(g, k = new Map())) : c[b] = 1, (h = k.get(b)) ? k = h : k.set(b, k = h = []), k = k[e] || (k[e] = []), !f || !k.includes(d)) {
-      if (k.length === 2 ** 31 - 1) {
-        c = new R(k);
+  let h = g ? a.ctx : a.map, k;
+  if (!c[b] || g && !(k = c[b])[g]) {
+    if (g ? (c = k || (c[b] = A()), c[g] = 1, (k = h.get(g)) ? h = k : h.set(g, h = new Map())) : c[b] = 1, (k = h.get(b)) ? h = k : h.set(b, h = k = []), h = h[e] || (h[e] = []), !f || !h.includes(d)) {
+      if (h.length === 2 ** 31 - 1) {
+        c = new R(h);
         if (a.fastupdate) {
           for (let l of a.reg.values()) {
-            l.includes(k) && (l[l.indexOf(k)] = c);
+            l.includes(h) && (l[l.indexOf(h)] = c);
           }
         }
-        h[e] = k = c;
+        k[e] = h = c;
       }
-      k.push(d);
-      a.fastupdate && ((e = a.reg.get(d)) ? e.push(k) : a.reg.set(d, [k]));
+      h.push(d);
+      a.fastupdate && ((e = a.reg.get(d)) ? e.push(h) : a.reg.set(d, [h]));
     }
   }
 }
@@ -1960,69 +1970,69 @@ function fb(a, c, b, e, d) {
 }
 ;N.prototype.search = function(a, c, b) {
   b || (c || "object" !== typeof a ? "object" === typeof c && (b = c, c = 0) : (b = a, a = ""));
-  let e = [], d, f, g, k = 0, h, l, n, m, q;
-  b ? (a = b.query || a, c = b.limit || c, k = b.offset || 0, f = b.context, g = b.suggest, q = (h = !1 !== b.resolve) && b.enrich, n = b.boost, m = b.resolution, l = this.db && b.tag) : h = this.resolve;
-  let p = this.encoder.encode(a);
-  d = p.length;
-  c = c || (h ? 100 : 0);
+  let e = [], d, f, g, h = 0, k, l, m, n, p;
+  b ? (a = b.query || a, c = b.limit || c, h = b.offset || 0, f = b.context, g = b.suggest, p = (k = !1 !== b.resolve) && b.enrich, m = b.boost, n = b.resolution, l = this.db && b.tag) : k = this.resolve;
+  let r = this.encoder.encode(a);
+  d = r.length;
+  c = c || (k ? 100 : 0);
   if (1 === d) {
-    return hb.call(this, p[0], "", c, k, h, q, l);
+    return hb.call(this, r[0], "", c, h, k, p, l);
   }
   f = this.depth && !1 !== f;
   if (2 === d && f && !g) {
-    return hb.call(this, p[1], p[0], c, k, h, q, l);
+    return hb.call(this, r[1], r[0], c, h, k, p, l);
   }
-  let r = B(), u = 0, t;
-  f && (t = p[0], u = 1);
-  m || 0 === m || (m = t ? this.U : this.resolution);
+  let q = A(), u = 0, v;
+  f && (v = r[0], u = 1);
+  n || 0 === n || (n = v ? this.U : this.resolution);
   if (this.db) {
-    if (this.db.search && (a = this.db.search(this, p, c, k, g, h, q, l), !1 !== a)) {
+    if (this.db.search && (a = this.db.search(this, r, c, h, g, k, p, l), !1 !== a)) {
       return a;
     }
     const w = this;
     return async function() {
-      for (let y, E; u < d; u++) {
-        if ((E = p[u]) && !r[E]) {
-          r[E] = 1;
-          y = await ib(w, E, t, 0, 0, !1, !1);
-          if (y = jb(y, e, g, m)) {
-            e = y;
+      for (let x, F; u < d; u++) {
+        if ((F = r[u]) && !q[F]) {
+          q[F] = 1;
+          x = await ib(w, F, v, 0, 0, !1, !1);
+          if (x = jb(x, e, g, n)) {
+            e = x;
             break;
           }
-          t && (g && y && e.length || (t = E));
+          v && (g && x && e.length || (v = F));
         }
-        g && t && u === d - 1 && !e.length && (m = w.resolution, t = "", u = -1, r = B());
+        g && v && u === d - 1 && !e.length && (n = w.resolution, v = "", u = -1, q = A());
       }
-      return kb(e, m, c, k, g, n, h);
+      return kb(e, n, c, h, g, m, k);
     }();
   }
-  for (let w, y; u < d; u++) {
-    if ((y = p[u]) && !r[y]) {
-      r[y] = 1;
-      w = ib(this, y, t, 0, 0, !1, !1);
-      if (w = jb(w, e, g, m)) {
+  for (let w, x; u < d; u++) {
+    if ((x = r[u]) && !q[x]) {
+      q[x] = 1;
+      w = ib(this, x, v, 0, 0, !1, !1);
+      if (w = jb(w, e, g, n)) {
         e = w;
         break;
       }
-      t && (g && w && e.length || (t = y));
+      v && (g && w && e.length || (v = x));
     }
-    g && t && u === d - 1 && !e.length && (m = this.resolution, t = "", u = -1, r = B());
+    g && v && u === d - 1 && !e.length && (n = this.resolution, v = "", u = -1, q = A());
   }
-  return kb(e, m, c, k, g, n, h);
+  return kb(e, n, c, h, g, m, k);
 };
 function kb(a, c, b, e, d, f, g) {
-  let k = a.length, h = a;
-  if (1 < k) {
-    h = Fa(a, c, b, e, d, f, g);
-  } else if (1 === k) {
+  let h = a.length, k = a;
+  if (1 < h) {
+    k = Fa(a, c, b, e, d, f, g);
+  } else if (1 === h) {
     return g ? Ia.call(null, a[0], b, e) : new W(a[0]);
   }
-  return g ? h : new W(h);
+  return g ? k : new W(k);
 }
 function hb(a, c, b, e, d, f, g) {
   a = ib(this, a, c, b, e, d, f, g);
-  return this.db ? a.then(function(k) {
-    return d ? k || [] : new W(k);
+  return this.db ? a.then(function(h) {
+    return d ? h || [] : new W(h);
   }) : a && a.length ? d ? Ia.call(this, a, b, e) : new W(a) : d ? [] : new W();
 }
 function jb(a, c, b, e) {
@@ -2046,11 +2056,11 @@ function jb(a, c, b, e) {
     return d;
   }
 }
-function ib(a, c, b, e, d, f, g, k) {
-  let h;
-  b && (h = a.bidirectional && c > b) && (h = b, b = c, c = h);
+function ib(a, c, b, e, d, f, g, h) {
+  let k;
+  b && (k = a.bidirectional && c > b) && (k = b, b = c, c = k);
   if (a.db) {
-    return a.db.get(c, b, e, d, f, g, k);
+    return a.db.get(c, b, e, d, f, g, h);
   }
   a = b ? (a = a.ctx.get(b)) && a.get(c) : a.map.get(c);
   return a;
@@ -2060,13 +2070,13 @@ function ib(a, c, b, e, d, f, g, k) {
     return new N(a);
   }
   if (a) {
-    var b = F(a) ? a : a.preset;
+    var b = D(a) ? a : a.preset;
     b && (eb[b] || console.warn("Preset not found: " + b), a = Object.assign({}, eb[b], a));
   } else {
     a = {};
   }
   b = a.context;
-  const e = !0 === b ? {depth:1} : b || {}, d = F(a.encoder) ? bb[a.encoder] : a.encode || a.encoder || {};
+  const e = !0 === b ? {depth:1} : b || {}, d = D(a.encoder) ? bb[a.encoder] : a.encode || a.encoder || {};
   this.encoder = d.encode ? d : "object" === typeof d ? new ja(d) : {encode:d};
   this.resolution = a.resolution || 9;
   this.tokenize = b = (b = a.tokenize) && "default" !== b && "exact" !== b && b || "strict";
@@ -2091,16 +2101,16 @@ function ib(a, c, b, e, d, f, g, k) {
   this.commit_timer = null;
   this.priority = a.priority || 4;
 }
-v = N.prototype;
-v.mount = function(a) {
+t = N.prototype;
+t.mount = function(a) {
   this.commit_timer && (clearTimeout(this.commit_timer), this.commit_timer = null);
   return a.mount(this);
 };
-v.commit = function(a, c) {
+t.commit = function(a, c) {
   this.commit_timer && (clearTimeout(this.commit_timer), this.commit_timer = null);
   return this.db.commit(this, a, c);
 };
-v.destroy = function() {
+t.destroy = function() {
   this.commit_timer && (clearTimeout(this.commit_timer), this.commit_timer = null);
   return this.db.destroy();
 };
@@ -2110,7 +2120,7 @@ function db(a) {
     a.db.commit(a, void 0, void 0);
   }, 1));
 }
-v.clear = function() {
+t.clear = function() {
   this.map.clear();
   this.ctx.clear();
   this.reg.clear();
@@ -2118,17 +2128,17 @@ v.clear = function() {
   this.db && (this.commit_timer && clearTimeout(this.commit_timer), this.commit_timer = null, this.commit_task = [{clear:!0}]);
   return this;
 };
-v.append = function(a, c) {
+t.append = function(a, c) {
   return this.add(a, c, !0);
 };
-v.contain = function(a) {
+t.contain = function(a) {
   return this.db ? this.db.has(a) : this.reg.has(a);
 };
-v.update = function(a, c) {
+t.update = function(a, c) {
   const b = this, e = this.remove(a);
   return e && e.then ? e.then(() => b.add(a, c)) : this.add(a, c);
 };
-v.cleanup = function() {
+t.cleanup = function() {
   if (!this.fastupdate) {
     return console.info('Cleanup the index isn\'t required when not using "fastupdate".'), this;
   }
@@ -2136,8 +2146,8 @@ v.cleanup = function() {
   this.depth && cb(this.ctx);
   return this;
 };
-v.searchCache = Va;
-v.export = function(a, c, b = 0, e = 0) {
+t.searchCache = Va;
+t.export = function(a, c, b = 0, e = 0) {
   let d, f;
   switch(e) {
     case 0:
@@ -2161,7 +2171,7 @@ v.export = function(a, c, b = 0, e = 0) {
   }
   return ya.call(this, a, c, d, f, b, e);
 };
-v.import = function(a, c) {
+t.import = function(a, c) {
   if (c) {
     switch("string" === typeof c && (c = JSON.parse(c)), a = a.split("."), "json" === a[a.length - 1] && a.pop(), 3 === a.length && a.shift(), a = 1 < a.length ? a[1] : a[0], a) {
       case "reg":
@@ -2176,7 +2186,7 @@ v.import = function(a, c) {
     }
   }
 };
-v.serialize = function(a = !0) {
+t.serialize = function(a = !0) {
   let c = "", b = "", e = "";
   if (this.reg.size) {
     let f;
@@ -2188,17 +2198,17 @@ v.serialize = function(a = !0) {
     b = "index.map=new Map([" + b + "]);";
     for (const g of this.ctx.entries()) {
       d = g[0];
-      let k = za(g[1], f);
-      k = "new Map([" + k + "])";
-      k = '["' + d + '",' + k + "]";
-      e += (e ? "," : "") + k;
+      let h = za(g[1], f);
+      h = "new Map([" + h + "])";
+      h = '["' + d + '",' + h + "]";
+      e += (e ? "," : "") + h;
     }
     e = "index.ctx=new Map([" + e + "]);";
   }
   return a ? "function inject(index){" + c + b + e + "}" : c + b + e;
 };
 la(N.prototype);
-const lb = "undefined" !== typeof window && (window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB), mb = ["map", "ctx", "tag", "reg", "cfg"], Y = B();
+const lb = "undefined" !== typeof window && (window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB), mb = ["map", "ctx", "tag", "reg", "cfg"], Y = A();
 function nb(a, c = {}) {
   if (!this) {
     return new nb(a, c);
@@ -2212,15 +2222,15 @@ function nb(a, c = {}) {
   this.db = null;
   this.h = {};
 }
-v = nb.prototype;
-v.mount = function(a) {
+t = nb.prototype;
+t.mount = function(a) {
   if (!a.encoder) {
     return a.mount(this);
   }
   a.db = this;
   return this.open();
 };
-v.open = function() {
+t.open = function() {
   if (this.db) {
     return this.db;
   }
@@ -2245,15 +2255,15 @@ v.open = function() {
     };
   });
 };
-v.close = function() {
+t.close = function() {
   this.db && this.db.close();
   this.db = null;
 };
-v.destroy = function() {
+t.destroy = function() {
   const a = lb.deleteDatabase(this.id);
   return Z(a);
 };
-v.clear = function() {
+t.clear = function() {
   const a = [];
   for (let b = 0, e; b < mb.length; b++) {
     e = mb[b];
@@ -2267,40 +2277,40 @@ v.clear = function() {
   }
   return Z(c);
 };
-v.get = function(a, c, b = 0, e = 0, d = !0, f = !1) {
+t.get = function(a, c, b = 0, e = 0, d = !0, f = !1) {
   a = this.db.transaction((c ? "ctx" : "map") + (this.field ? ":" + this.field : ""), "readonly").objectStore((c ? "ctx" : "map") + (this.field ? ":" + this.field : "")).get(c ? c + ":" + a : a);
   const g = this;
-  return Z(a).then(function(k) {
-    let h = [];
-    if (!k || !k.length) {
-      return h;
+  return Z(a).then(function(h) {
+    let k = [];
+    if (!h || !h.length) {
+      return k;
     }
     if (d) {
-      if (!b && !e && 1 === k.length) {
-        return k[0];
+      if (!b && !e && 1 === h.length) {
+        return h[0];
       }
-      for (let l = 0, n; l < k.length; l++) {
-        if ((n = k[l]) && n.length) {
-          if (e >= n.length) {
-            e -= n.length;
+      for (let l = 0, m; l < h.length; l++) {
+        if ((m = h[l]) && m.length) {
+          if (e >= m.length) {
+            e -= m.length;
             continue;
           }
-          const m = b ? e + Math.min(n.length - e, b) : n.length;
-          for (let q = e; q < m; q++) {
-            h.push(n[q]);
+          const n = b ? e + Math.min(m.length - e, b) : m.length;
+          for (let p = e; p < n; p++) {
+            k.push(m[p]);
           }
           e = 0;
-          if (h.length === b) {
+          if (k.length === b) {
             break;
           }
         }
       }
-      return f ? g.enrich(h) : h;
+      return f ? g.enrich(k) : k;
     }
-    return k;
+    return h;
   });
 };
-v.tag = function(a, c = 0, b = 0, e = !1) {
+t.tag = function(a, c = 0, b = 0, e = !1) {
   a = this.db.transaction("tag" + (this.field ? ":" + this.field : ""), "readonly").objectStore("tag" + (this.field ? ":" + this.field : "")).get(a);
   const d = this;
   return Z(a).then(function(f) {
@@ -2314,7 +2324,7 @@ v.tag = function(a, c = 0, b = 0, e = !1) {
     return e ? d.enrich(f) : f;
   });
 };
-v.enrich = function(a) {
+t.enrich = function(a) {
   "object" !== typeof a && (a = [a]);
   const c = this.db.transaction("reg", "readonly").objectStore("reg"), b = [];
   for (let e = 0; e < a.length; e++) {
@@ -2327,16 +2337,16 @@ v.enrich = function(a) {
     return e;
   });
 };
-v.has = function(a) {
+t.has = function(a) {
   a = this.db.transaction("reg", "readonly").objectStore("reg").getKey(a);
   return Z(a).then(function(c) {
     return !!c;
   });
 };
-v.search = null;
-v.info = function() {
+t.search = null;
+t.info = function() {
 };
-v.transaction = function(a, c, b) {
+t.transaction = function(a, c, b) {
   a += "reg" !== a ? this.field ? ":" + this.field : "" : "";
   let e = this.h[a + ":" + c];
   if (e) {
@@ -2351,7 +2361,7 @@ v.transaction = function(a, c, b) {
     return f;
   });
 };
-v.commit = async function(a, c, b) {
+t.commit = async function(a, c, b) {
   if (c) {
     await this.clear(), a.commit_task = [];
   } else {
@@ -2372,54 +2382,54 @@ v.commit = async function(a, c, b) {
     for (const d of a.map) {
       const f = d[0], g = d[1];
       g.length && (c ? e.put(g, f) : e.get(f).onsuccess = function() {
-        let k = this.result;
-        var h;
-        if (k && k.length) {
-          const l = Math.max(k.length, g.length);
-          for (let n = 0, m, q; n < l; n++) {
-            if ((q = g[n]) && q.length) {
-              if ((m = k[n]) && m.length) {
-                for (h = 0; h < q.length; h++) {
-                  m.push(q[h]);
+        let h = this.result;
+        var k;
+        if (h && h.length) {
+          const l = Math.max(h.length, g.length);
+          for (let m = 0, n, p; m < l; m++) {
+            if ((p = g[m]) && p.length) {
+              if ((n = h[m]) && n.length) {
+                for (k = 0; k < p.length; k++) {
+                  n.push(p[k]);
                 }
               } else {
-                k[n] = q;
+                h[m] = p;
               }
-              h = 1;
+              k = 1;
             }
           }
         } else {
-          k = g, h = 1;
+          h = g, k = 1;
         }
-        h && e.put(k, f);
+        k && e.put(h, f);
       });
     }
   }), await this.transaction("ctx", "readwrite", function(e) {
     for (const d of a.ctx) {
       const f = d[0], g = d[1];
-      for (const k of g) {
-        const h = k[0], l = k[1];
-        l.length && (c ? e.put(l, f + ":" + h) : e.get(f + ":" + h).onsuccess = function() {
-          let n = this.result;
-          var m;
-          if (n && n.length) {
-            const q = Math.max(n.length, l.length);
-            for (let p = 0, r, u; p < q; p++) {
-              if ((u = l[p]) && u.length) {
-                if ((r = n[p]) && r.length) {
-                  for (m = 0; m < u.length; m++) {
-                    r.push(u[m]);
+      for (const h of g) {
+        const k = h[0], l = h[1];
+        l.length && (c ? e.put(l, f + ":" + k) : e.get(f + ":" + k).onsuccess = function() {
+          let m = this.result;
+          var n;
+          if (m && m.length) {
+            const p = Math.max(m.length, l.length);
+            for (let r = 0, q, u; r < p; r++) {
+              if ((u = l[r]) && u.length) {
+                if ((q = m[r]) && q.length) {
+                  for (n = 0; n < u.length; n++) {
+                    q.push(u[n]);
                   }
                 } else {
-                  n[p] = u;
+                  m[r] = u;
                 }
-                m = 1;
+                n = 1;
               }
             }
           } else {
-            n = l, m = 1;
+            m = l, n = 1;
           }
-          m && e.put(n, f + ":" + h);
+          n && e.put(m, f + ":" + k);
         });
       }
     }
@@ -2436,9 +2446,9 @@ v.commit = async function(a, c, b) {
     for (const d of a.tag) {
       const f = d[0], g = d[1];
       g.length && (e.get(f).onsuccess = function() {
-        let k = this.result;
-        k = k && k.length ? k.concat(g) : g;
-        e.put(k, f);
+        let h = this.result;
+        h = h && h.length ? h.concat(g) : g;
+        e.put(h, f);
       });
     }
   }), a.map.clear(), a.ctx.clear(), a.tag && a.tag.clear(), a.store && a.store.clear(), a.document || a.reg.clear());
@@ -2446,19 +2456,19 @@ v.commit = async function(a, c, b) {
 function ob(a, c, b) {
   const e = a.value;
   let d, f = 0;
-  for (let g = 0, k; g < e.length; g++) {
-    if (k = b ? e : e[g]) {
-      for (let h = 0, l, n; h < c.length; h++) {
-        if (n = c[h], l = k.indexOf(n), 0 <= l) {
-          if (d = 1, 1 < k.length) {
-            k.splice(l, 1);
+  for (let g = 0, h; g < e.length; g++) {
+    if (h = b ? e : e[g]) {
+      for (let k = 0, l, m; k < c.length; k++) {
+        if (m = c[k], l = h.indexOf(m), 0 <= l) {
+          if (d = 1, 1 < h.length) {
+            h.splice(l, 1);
           } else {
             e[g] = [];
             break;
           }
         }
       }
-      f += k.length;
+      f += h.length;
     }
     if (b) {
       break;
@@ -2467,7 +2477,7 @@ function ob(a, c, b) {
   f ? d && a.update(e) : a.delete();
   a.continue();
 }
-v.remove = function(a) {
+t.remove = function(a) {
   "object" !== typeof a && (a = [a]);
   return Promise.all([this.transaction("map", "readwrite", function(c) {
     c.openCursor().onsuccess = function() {
diff --git a/dist/flexsearch.bundle.min.js b/dist/flexsearch.bundle.min.js
index bf55d96..cc0af81 100644
--- a/dist/flexsearch.bundle.min.js
+++ b/dist/flexsearch.bundle.min.js
@@ -1,94 +1,94 @@
 /**!
- * FlexSearch.js v0.8.154 (Bundle)
+ * FlexSearch.js v0.8.155 (Bundle)
  * Author and Copyright: Thomas Wilkerling
  * Licence: Apache-2.0
  * Hosted by Nextapps GmbH
  * https://github.com/nextapps-de/flexsearch
  */
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+function fb(a,b,c,e,d){return c&&1<a?b+(e||0)<=a?c+(d||0):(a-1)/(b+(e||0))*(c+(d||0))+1|0:0};M.prototype.search=function(a,b,c){c||(b||"object"!==typeof a?"object"===typeof b&&(c=b,b=0):(c=a,a=""));let e=[],d,f,g,h=0,k,l,m,n,p;c?(a=c.query||a,b=c.limit||b,h=c.offset||0,f=c.context,g=c.suggest,p=(k=!1!==c.resolve)&&c.enrich,m=c.boost,n=c.resolution,l=this.db&&c.tag):k=this.resolve;let r=this.encoder.encode(a);d=r.length;b=b||(k?100:0);if(1===d)return hb.call(this,r[0],"",b,h,k,p,l);f=this.depth&&!1!==f;if(2===d&&f&&!g)return hb.call(this,r[1],r[0],b,h,k,p,l);let q=A(),u=0,v;f&&(v=r[0],u=1);
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+(v=x))}g&&v&&u===d-1&&!e.length&&(n=this.resolution,v="",u=-1,q=A())}return kb(e,n,b,h,g,m,k)};function kb(a,b,c,e,d,f,g){let h=a.length,k=a;if(1<h)k=Fa(a,b,c,e,d,f,g);else if(1===h)return g?Ia.call(null,a[0],c,e):new W(a[0]);return g?k:new W(k)}function hb(a,b,c,e,d,f,g){a=ib(this,a,b,c,e,d,f,g);return this.db?a.then(function(h){return d?h||[]:new W(h)}):a&&a.length?d?Ia.call(this,a,c,e):new W(a):d?[]:new W}
+function jb(a,b,c,e){let d=[];if(a&&a.length){if(a.length<=e){b.push(a);return}for(let f=0,g;f<e;f++)if(g=a[f])d[f]=g;if(d.length){b.push(d);return}}if(!c)return d}function ib(a,b,c,e,d,f,g,h){let k;c&&(k=a.bidirectional&&b>c)&&(k=c,c=b,b=k);if(a.db)return a.db.get(b,c,e,d,f,g,h);a=c?(a=a.ctx.get(c))&&a.get(b):a.map.get(b);return a};function M(a,b){if(!this||this.constructor!==M)return new M(a);if(a){var c=D(a)?a:a.preset;c&&(a=Object.assign({},eb[c],a))}else a={};c=a.context;const e=!0===c?{depth:1}:c||{},d=D(a.encoder)?bb[a.encoder]:a.encode||a.encoder||{};this.encoder=d.encode?d:"object"===typeof d?new ia(d):{encode:d};this.resolution=a.resolution||9;this.tokenize=c=(c=a.tokenize)&&"default"!==c&&"exact"!==c&&c||"strict";this.depth="strict"===c&&e.depth||0;this.bidirectional=!1!==e.bidirectional;this.fastupdate=!!a.fastupdate;
+this.score=a.score||null;(c=a.keystore||0)&&(this.keystore=c);this.map=c?new S(c):new Map;this.ctx=c?new S(c):new Map;this.reg=b||(this.fastupdate?c?new S(c):new Map:c?new T(c):new Set);this.U=e.resolution||3;this.rtl=d.rtl||a.rtl||!1;this.cache=(c=a.cache||null)&&new X(c);this.resolve=!1!==a.resolve;if(c=a.db)this.db=this.mount(c);this.T=!1!==a.commit;this.commit_task=[];this.commit_timer=null;this.priority=a.priority||4}t=M.prototype;
+t.mount=function(a){this.commit_timer&&(clearTimeout(this.commit_timer),this.commit_timer=null);return a.mount(this)};t.commit=function(a,b){this.commit_timer&&(clearTimeout(this.commit_timer),this.commit_timer=null);return this.db.commit(this,a,b)};t.destroy=function(){this.commit_timer&&(clearTimeout(this.commit_timer),this.commit_timer=null);return this.db.destroy()};function db(a){a.commit_timer||(a.commit_timer=setTimeout(function(){a.commit_timer=null;a.db.commit(a,void 0,void 0)},1))}
+t.clear=function(){this.map.clear();this.ctx.clear();this.reg.clear();this.cache&&this.cache.clear();this.db&&(this.commit_timer&&clearTimeout(this.commit_timer),this.commit_timer=null,this.commit_task=[{clear:!0}]);return this};t.append=function(a,b){return this.add(a,b,!0)};t.contain=function(a){return this.db?this.db.has(a):this.reg.has(a)};t.update=function(a,b){const c=this,e=this.remove(a);return e&&e.then?e.then(()=>c.add(a,b)):this.add(a,b)};
+t.cleanup=function(){if(!this.fastupdate)return this;cb(this.map);this.depth&&cb(this.ctx);return this};t.searchCache=Va;t.export=function(a,b,c=0,e=0){let d,f;switch(e){case 0:d="reg";f=wa(this.reg);break;case 1:d="cfg";f=null;break;case 2:d="map";f=sa(this.map,this.reg.size);break;case 3:d="ctx";f=ua(this.ctx,this.reg.size);break;default:return}return ya.call(this,a,b,d,f,c,e)};
+t.import=function(a,b){if(b)switch("string"===typeof b&&(b=JSON.parse(b)),a=a.split("."),"json"===a[a.length-1]&&a.pop(),3===a.length&&a.shift(),a=1<a.length?a[1]:a[0],a){case "reg":this.fastupdate=!1;this.reg=xa(b,this.reg);break;case "map":this.map=ta(b,this.map);break;case "ctx":this.ctx=va(b,this.ctx)}};
+t.serialize=function(a=!0){let b="",c="",e="";if(this.reg.size){let f;for(var d of this.reg.keys())f||(f=typeof d),b+=(b?",":"")+("string"===f?'"'+d+'"':d);b="index.reg=new Set(["+b+"]);";c=za(this.map,f);c="index.map=new Map(["+c+"]);";for(const g of this.ctx.entries()){d=g[0];let h=za(g[1],f);h="new Map(["+h+"])";h='["'+d+'",'+h+"]";e+=(e?",":"")+h}e="index.ctx=new Map(["+e+"]);"}return a?"function inject(index){"+b+c+e+"}":b+c+e};la(M.prototype);const lb="undefined"!==typeof window&&(window.indexedDB||window.mozIndexedDB||window.webkitIndexedDB||window.msIndexedDB),mb=["map","ctx","tag","reg","cfg"],Y=A();
+function nb(a,b={}){if(!this)return new nb(a,b);"object"===typeof a&&(b=a,a=a.name);a||console.info("Default storage space was used, because a name was not passed.");this.id="flexsearch"+(a?":"+a.toLowerCase().replace(/[^a-z0-9_\-]/g,""):"");this.field=b.field?b.field.toLowerCase().replace(/[^a-z0-9_\-]/g,""):"";this.type=b.type;this.fastupdate=this.support_tag_search=!1;this.db=null;this.h={}}t=nb.prototype;t.mount=function(a){if(!a.encoder)return a.mount(this);a.db=this;return this.open()};
+t.open=function(){if(this.db)return this.db;let a=this;navigator.storage&&navigator.storage.persist();Y[a.id]||(Y[a.id]=[]);Y[a.id].push(a.field);const b=lb.open(a.id,1);b.onupgradeneeded=function(){const c=a.db=this.result;for(let e=0,d;e<mb.length;e++){d=mb[e];for(let f=0,g;f<Y[a.id].length;f++)g=Y[a.id][f],c.objectStoreNames.contains(d+("reg"!==d?g?":"+g:"":""))||c.createObjectStore(d+("reg"!==d?g?":"+g:"":""))}};return a.db=Z(b,function(c){a.db=c;a.db.onversionchange=function(){a.close()}})};
+t.close=function(){this.db&&this.db.close();this.db=null};t.destroy=function(){const a=lb.deleteDatabase(this.id);return Z(a)};t.clear=function(){const a=[];for(let c=0,e;c<mb.length;c++){e=mb[c];for(let d=0,f;d<Y[this.id].length;d++)f=Y[this.id][d],a.push(e+("reg"!==e?f?":"+f:"":""))}const b=this.db.transaction(a,"readwrite");for(let c=0;c<a.length;c++)b.objectStore(a[c]).clear();return Z(b)};
+t.get=function(a,b,c=0,e=0,d=!0,f=!1){a=this.db.transaction((b?"ctx":"map")+(this.field?":"+this.field:""),"readonly").objectStore((b?"ctx":"map")+(this.field?":"+this.field:"")).get(b?b+":"+a:a);const g=this;return Z(a).then(function(h){let k=[];if(!h||!h.length)return k;if(d){if(!c&&!e&&1===h.length)return h[0];for(let l=0,m;l<h.length;l++)if((m=h[l])&&m.length){if(e>=m.length){e-=m.length;continue}const n=c?e+Math.min(m.length-e,c):m.length;for(let p=e;p<n;p++)k.push(m[p]);e=0;if(k.length===c)break}return f?
+g.enrich(k):k}return h})};t.tag=function(a,b=0,c=0,e=!1){a=this.db.transaction("tag"+(this.field?":"+this.field:""),"readonly").objectStore("tag"+(this.field?":"+this.field:"")).get(a);const d=this;return Z(a).then(function(f){if(!f||!f.length||c>=f.length)return[];if(!b&&!c)return f;f=f.slice(c,c+b);return e?d.enrich(f):f})};
+t.enrich=function(a){"object"!==typeof a&&(a=[a]);const b=this.db.transaction("reg","readonly").objectStore("reg"),c=[];for(let e=0;e<a.length;e++)c[e]=Z(b.get(a[e]));return Promise.all(c).then(function(e){for(let d=0;d<e.length;d++)e[d]={id:a[d],doc:e[d]?JSON.parse(e[d]):null};return e})};t.has=function(a){a=this.db.transaction("reg","readonly").objectStore("reg").getKey(a);return Z(a).then(function(b){return!!b})};t.search=null;t.info=function(){};
+t.transaction=function(a,b,c){a+="reg"!==a?this.field?":"+this.field:"":"";let e=this.h[a+":"+b];if(e)return c.call(this,e);let d=this.db.transaction(a,b);this.h[a+":"+b]=e=d.objectStore(a);const f=c.call(this,e);this.h[a+":"+b]=null;return Z(d).finally(function(){d=e=null;return f})};
+t.commit=async function(a,b,c){if(b)await this.clear(),a.commit_task=[];else{let e=a.commit_task;a.commit_task=[];for(let d=0,f;d<e.length;d++)if(f=e[d],f.clear){await this.clear();b=!0;break}else e[d]=f.del;b||(c||(e=e.concat(aa(a.reg))),e.length&&await this.remove(e))}a.reg.size&&(await this.transaction("map","readwrite",function(e){for(const d of a.map){const f=d[0],g=d[1];g.length&&(b?e.put(g,f):e.get(f).onsuccess=function(){let h=this.result;var k;if(h&&h.length){const l=Math.max(h.length,g.length);
+for(let m=0,n,p;m<l;m++)if((p=g[m])&&p.length){if((n=h[m])&&n.length)for(k=0;k<p.length;k++)n.push(p[k]);else h[m]=p;k=1}}else h=g,k=1;k&&e.put(h,f)})}}),await this.transaction("ctx","readwrite",function(e){for(const d of a.ctx){const f=d[0],g=d[1];for(const h of g){const k=h[0],l=h[1];l.length&&(b?e.put(l,f+":"+k):e.get(f+":"+k).onsuccess=function(){let m=this.result;var n;if(m&&m.length){const p=Math.max(m.length,l.length);for(let r=0,q,u;r<p;r++)if((u=l[r])&&u.length){if((q=m[r])&&q.length)for(n=
+0;n<u.length;n++)q.push(u[n]);else m[r]=u;n=1}}else m=l,n=1;n&&e.put(m,f+":"+k)})}}}),a.store?await this.transaction("reg","readwrite",function(e){for(const d of a.store){const f=d[0],g=d[1];e.put("object"===typeof g?JSON.stringify(g):1,f)}}):a.bypass||await this.transaction("reg","readwrite",function(e){for(const d of a.reg.keys())e.put(1,d)}),a.tag&&await this.transaction("tag","readwrite",function(e){for(const d of a.tag){const f=d[0],g=d[1];g.length&&(e.get(f).onsuccess=function(){let h=this.result;
+h=h&&h.length?h.concat(g):g;e.put(h,f)})}}),a.map.clear(),a.ctx.clear(),a.tag&&a.tag.clear(),a.store&&a.store.clear(),a.document||a.reg.clear())};function ob(a,b,c){const e=a.value;let d,f=0;for(let g=0,h;g<e.length;g++){if(h=c?e:e[g]){for(let k=0,l,m;k<b.length;k++)if(m=b[k],l=h.indexOf(m),0<=l)if(d=1,1<h.length)h.splice(l,1);else{e[g]=[];break}f+=h.length}if(c)break}f?d&&a.update(e):a.delete();a.continue()}
+t.remove=function(a){"object"!==typeof a&&(a=[a]);return Promise.all([this.transaction("map","readwrite",function(b){b.openCursor().onsuccess=function(){const c=this.result;c&&ob(c,a)}}),this.transaction("ctx","readwrite",function(b){b.openCursor().onsuccess=function(){const c=this.result;c&&ob(c,a)}}),this.transaction("tag","readwrite",function(b){b.openCursor().onsuccess=function(){const c=this.result;c&&ob(c,a,!0)}}),this.transaction("reg","readwrite",function(b){for(let c=0;c<a.length;c++)b.delete(a[c])})])};
 function Z(a,b){return new Promise((c,e)=>{a.onsuccess=a.oncomplete=function(){b&&b(this.result);b=null;c(this.result)};a.onerror=a.onblocked=e;a=null})};const pb={Index:M,Charset:bb,Encoder:ia,Document:U,Worker:P,Resolver:W,IndexedDB:nb,Language:{}},rb="undefined"!==typeof self?self:"undefined"!==typeof global?global:self;let sb;(sb=rb.define)&&sb.amd?sb([],function(){return pb}):"object"===typeof rb.exports?rb.exports=pb:rb.FlexSearch=pb;}(this||self));
diff --git a/dist/flexsearch.bundle.module.debug.js b/dist/flexsearch.bundle.module.debug.js
index ba251f7..1582ae8 100644
--- a/dist/flexsearch.bundle.module.debug.js
+++ b/dist/flexsearch.bundle.module.debug.js
@@ -1,19 +1,19 @@
 /**!
- * FlexSearch.js v0.8.154 (Bundle/Module/Debug)
+ * FlexSearch.js v0.8.155 (Bundle/Module/Debug)
  * Author and Copyright: Thomas Wilkerling
  * Licence: Apache-2.0
  * Hosted by Nextapps GmbH
  * https://github.com/nextapps-de/flexsearch
  */
-var v;
-function A(a, c, b) {
+var t;
+function z(a, c, b) {
   const e = typeof b, d = typeof a;
   if ("undefined" !== e) {
     if ("undefined" !== d) {
       if (b) {
         if ("function" === d && e === d) {
-          return function(k) {
-            return a(b(k));
+          return function(h) {
+            return a(b(h));
           };
         }
         c = a.constructor;
@@ -43,13 +43,13 @@ function A(a, c, b) {
   }
   return "undefined" === d ? c : a;
 }
-function B() {
+function A() {
   return Object.create(null);
 }
-function F(a) {
+function D(a) {
   return "string" === typeof a;
 }
-function H(a) {
+function G(a) {
   return "object" === typeof a;
 }
 function aa(a) {
@@ -60,7 +60,7 @@ function aa(a) {
   return c;
 }
 function ba(a, c) {
-  if (F(c)) {
+  if (D(c)) {
     a = a[c];
   } else {
     for (let b = 0; a && b < c.length; b++) {
@@ -89,9 +89,9 @@ function ja(a = {}) {
     this.assign(a);
   }
 }
-v = ja.prototype;
-v.assign = function(a) {
-  this.normalize = A(a.normalize, !0, this.normalize);
+t = ja.prototype;
+t.assign = function(a) {
+  this.normalize = z(a.normalize, !0, this.normalize);
   let c = a.include, b = c || a.exclude || a.split, e;
   if (b || "" === b) {
     if ("object" === typeof b && b.constructor !== RegExp) {
@@ -114,28 +114,28 @@ v.assign = function(a) {
     } else {
       this.split = b, e = !1 === b || 2 > "a1a".split(b).length;
     }
-    this.numeric = A(a.numeric, e);
+    this.numeric = z(a.numeric, e);
   } else {
     try {
-      this.split = A(this.split, da);
+      this.split = z(this.split, da);
     } catch (d) {
       console.warn("This platform does not support unicode regex. It falls back to using simple whitespace splitter instead: /s+/."), this.split = /\s+/;
     }
-    this.numeric = A(a.numeric, A(this.numeric, !0));
+    this.numeric = z(a.numeric, z(this.numeric, !0));
   }
-  this.prepare = A(a.prepare, null, this.prepare);
-  this.finalize = A(a.finalize, null, this.finalize);
+  this.prepare = z(a.prepare, null, this.prepare);
+  this.finalize = z(a.finalize, null, this.finalize);
   b = a.filter;
-  this.filter = "function" === typeof b ? b : A(b && new Set(b), null, this.filter);
-  this.dedupe = A(a.dedupe, !0, this.dedupe);
-  this.matcher = A((b = a.matcher) && new Map(b), null, this.matcher);
-  this.mapper = A((b = a.mapper) && new Map(b), null, this.mapper);
-  this.stemmer = A((b = a.stemmer) && new Map(b), null, this.stemmer);
-  this.replacer = A(a.replacer, null, this.replacer);
-  this.minlength = A(a.minlength, 1, this.minlength);
-  this.maxlength = A(a.maxlength, 1024, this.maxlength);
-  this.rtl = A(a.rtl, !1, this.rtl);
-  if (this.cache = b = A(a.cache, !0, this.cache)) {
+  this.filter = "function" === typeof b ? b : z(b && new Set(b), null, this.filter);
+  this.dedupe = z(a.dedupe, !0, this.dedupe);
+  this.matcher = z((b = a.matcher) && new Map(b), null, this.matcher);
+  this.mapper = z((b = a.mapper) && new Map(b), null, this.mapper);
+  this.stemmer = z((b = a.stemmer) && new Map(b), null, this.stemmer);
+  this.replacer = z(a.replacer, null, this.replacer);
+  this.minlength = z(a.minlength, 1, this.minlength);
+  this.maxlength = z(a.maxlength, 1024, this.maxlength);
+  this.rtl = z(a.rtl, !1, this.rtl);
+  if (this.cache = b = z(a.cache, !0, this.cache)) {
     this.H = null, this.S = "number" === typeof b ? b : 2e5, this.B = new Map(), this.G = new Map(), this.L = this.K = 128;
   }
   this.h = "";
@@ -154,20 +154,20 @@ v.assign = function(a) {
   }
   return this;
 };
-v.addStemmer = function(a, c) {
+t.addStemmer = function(a, c) {
   this.stemmer || (this.stemmer = new Map());
   this.stemmer.set(a, c);
   this.A += (this.A ? "|" : "") + a;
   this.N = null;
-  this.cache && I(this);
+  this.cache && H(this);
   return this;
 };
-v.addFilter = function(a) {
+t.addFilter = function(a) {
   "function" === typeof a ? this.filter = a : (this.filter || (this.filter = new Set()), this.filter.add(a));
-  this.cache && I(this);
+  this.cache && H(this);
   return this;
 };
-v.addMapper = function(a, c) {
+t.addMapper = function(a, c) {
   if ("object" === typeof a) {
     return this.addReplacer(a, c);
   }
@@ -176,10 +176,10 @@ v.addMapper = function(a, c) {
   }
   this.mapper || (this.mapper = new Map());
   this.mapper.set(a, c);
-  this.cache && I(this);
+  this.cache && H(this);
   return this;
 };
-v.addMatcher = function(a, c) {
+t.addMatcher = function(a, c) {
   if ("object" === typeof a) {
     return this.addReplacer(a, c);
   }
@@ -190,26 +190,26 @@ v.addMatcher = function(a, c) {
   this.matcher.set(a, c);
   this.h += (this.h ? "|" : "") + a;
   this.M = null;
-  this.cache && I(this);
+  this.cache && H(this);
   return this;
 };
-v.addReplacer = function(a, c) {
+t.addReplacer = function(a, c) {
   if ("string" === typeof a) {
     return this.addMatcher(a, c);
   }
   this.replacer || (this.replacer = []);
   this.replacer.push(a, c);
-  this.cache && I(this);
+  this.cache && H(this);
   return this;
 };
-v.encode = function(a) {
+t.encode = function(a) {
   if (this.cache && a.length <= this.K) {
     if (this.H) {
       if (this.B.has(a)) {
         return this.B.get(a);
       }
     } else {
-      this.H = setTimeout(I, 50, this);
+      this.H = setTimeout(H, 50, this);
     }
   }
   this.normalize && ("function" === typeof this.normalize ? a = this.normalize(a) : a = ia ? a.normalize("NFKD").replace(ia, "").toLowerCase() : a.toLowerCase());
@@ -217,8 +217,8 @@ v.encode = function(a) {
   this.numeric && 3 < a.length && (a = a.replace(fa, "$1 $2").replace(ha, "$1 $2").replace(ea, "$1 "));
   const c = !(this.dedupe || this.mapper || this.filter || this.matcher || this.stemmer || this.replacer);
   let b = [], e = this.split || "" === this.split ? a.split(this.split) : a;
-  for (let f = 0, g, k; f < e.length; f++) {
-    if ((g = k = e[f]) && !(g.length < this.minlength || g.length > this.maxlength)) {
+  for (let f = 0, g, h; f < e.length; f++) {
+    if ((g = h = e[f]) && !(g.length < this.minlength || g.length > this.maxlength)) {
       if (c) {
         b.push(g);
       } else {
@@ -231,24 +231,24 @@ v.encode = function(a) {
                 continue;
               }
             } else {
-              this.H = setTimeout(I, 50, this);
+              this.H = setTimeout(H, 50, this);
             }
           }
-          this.stemmer && 2 < g.length && (this.N || (this.N = new RegExp("(?!^)(" + this.A + ")$")), g = g.replace(this.N, h => this.stemmer.get(h)));
+          this.stemmer && 2 < g.length && (this.N || (this.N = new RegExp("(?!^)(" + this.A + ")$")), g = g.replace(this.N, k => this.stemmer.get(k)));
           if (g && (this.mapper || this.dedupe && 1 < g.length)) {
             d = "";
-            for (let h = 0, l = "", n, m; h < g.length; h++) {
-              n = g.charAt(h), n === l && this.dedupe || ((m = this.mapper && this.mapper.get(n)) || "" === m ? m === l && this.dedupe || !(l = m) || (d += m) : d += l = n);
+            for (let k = 0, l = "", m, n; k < g.length; k++) {
+              m = g.charAt(k), m === l && this.dedupe || ((n = this.mapper && this.mapper.get(m)) || "" === n ? n === l && this.dedupe || !(l = n) || (d += n) : d += l = m);
             }
             g = d;
           }
-          this.matcher && 1 < g.length && (this.M || (this.M = new RegExp("(" + this.h + ")", "g")), g = g.replace(this.M, h => this.matcher.get(h)));
+          this.matcher && 1 < g.length && (this.M || (this.M = new RegExp("(" + this.h + ")", "g")), g = g.replace(this.M, k => this.matcher.get(k)));
           if (g && this.replacer) {
             for (d = 0; g && d < this.replacer.length; d += 2) {
               g = g.replace(this.replacer[d], this.replacer[d + 1]);
             }
           }
-          this.cache && k.length <= this.L && (this.G.set(k, g), this.G.size > this.S && (this.G.clear(), this.L = this.L / 1.1 | 0));
+          this.cache && h.length <= this.L && (this.G.set(h, g), this.G.size > this.S && (this.G.clear(), this.L = this.L / 1.1 | 0));
           g && b.push(g);
         }
       }
@@ -258,12 +258,12 @@ v.encode = function(a) {
   this.cache && a.length <= this.K && (this.B.set(a, b), this.B.size > this.S && (this.B.clear(), this.K = this.K / 1.1 | 0));
   return b;
 };
-function I(a) {
+function H(a) {
   a.H = null;
   a.B.clear();
   a.G.clear();
 }
-;let J, M;
+;let I, L;
 async function ka(a) {
   a = a.data;
   var c = a.task;
@@ -271,25 +271,25 @@ async function ka(a) {
   let e = a.args;
   switch(c) {
     case "init":
-      M = a.options || {};
-      (c = a.factory) ? (Function("return " + c)()(self), J = new self.FlexSearch.Index(M), delete self.FlexSearch) : J = new N(M);
+      L = a.options || {};
+      (c = a.factory) ? (Function("return " + c)()(self), I = new self.FlexSearch.Index(L), delete self.FlexSearch) : I = new N(L);
       postMessage({id:b});
       break;
     default:
       let d;
       if ("export" === c) {
-        if (!M.export || "function" !== typeof M.export) {
+        if (!L.export || "function" !== typeof L.export) {
           throw Error('Either no extern configuration provided for the Worker-Index or no method was defined on the config property "export".');
         }
-        e[1] ? (e[0] = M.export, e[2] = 0, e[3] = 1) : e = null;
+        e[1] ? (e[0] = L.export, e[2] = 0, e[3] = 1) : e = null;
       }
       if ("import" === c) {
-        if (!M.import || "function" !== typeof M.import) {
+        if (!L.import || "function" !== typeof L.import) {
           throw Error('Either no extern configuration provided for the Worker-Index or no method was defined on the config property "import".');
         }
-        e[0] && (a = await M.import.call(J, e[0]), J.import(e[0], a));
+        e[0] && (a = await L.import.call(I, e[0]), I.import(e[0], a));
       } else {
-        (d = e && J[c].apply(J, e)) && d.then && (d = await d);
+        (d = e && I[c].apply(I, e)) && d.then && (d = await d);
       }
       postMessage("search" === c ? {id:b, msg:d} : {id:b});
   }
@@ -329,19 +329,19 @@ function ma(a) {
 ;let O = 0;
 function P(a = {}) {
   function c(g) {
-    function k(h) {
-      h = h.data || h;
-      const l = h.id, n = l && d.h[l];
-      n && (n(h.msg), delete d.h[l]);
+    function h(k) {
+      k = k.data || k;
+      const l = k.id, m = l && d.h[l];
+      m && (m(k.msg), delete d.h[l]);
     }
     this.worker = g;
-    this.h = B();
+    this.h = A();
     if (this.worker) {
-      e ? this.worker.on("message", k) : this.worker.onmessage = k;
+      e ? this.worker.on("message", h) : this.worker.onmessage = h;
       if (a.config) {
-        return new Promise(function(h) {
+        return new Promise(function(k) {
           d.h[++O] = function() {
-            h(d);
+            k(d);
             1e9 < O && (O = 0);
           };
           d.worker.postMessage({id:O, task:"init", factory:b, options:a});
@@ -437,18 +437,18 @@ function xa(a, c) {
   return c;
 }
 function ya(a, c, b, e, d, f, g = 0) {
-  const k = e && e.constructor === Array;
-  var h = k ? e.shift() : e;
-  if (!h) {
+  const h = e && e.constructor === Array;
+  var k = h ? e.shift() : e;
+  if (!k) {
     return this.export(a, c, d, f + 1);
   }
-  if ((h = a((c ? c + "." : "") + (g + 1) + "." + b, JSON.stringify(h))) && h.then) {
+  if ((k = a((c ? c + "." : "") + (g + 1) + "." + b, JSON.stringify(k))) && k.then) {
     const l = this;
-    return h.then(function() {
-      return ya.call(l, a, c, b, k ? e : null, d, f, g + 1);
+    return k.then(function() {
+      return ya.call(l, a, c, b, h ? e : null, d, f, g + 1);
     });
   }
-  return ya.call(this, a, c, b, k ? e : null, d, f, g + 1);
+  return ya.call(this, a, c, b, h ? e : null, d, f, g + 1);
 }
 function za(a, c) {
   let b = "";
@@ -456,14 +456,14 @@ function za(a, c) {
     a = e[0];
     const d = e[1];
     let f = "";
-    for (let g = 0, k; g < d.length; g++) {
-      k = d[g] || [""];
-      let h = "";
-      for (let l = 0; l < k.length; l++) {
-        h += (h ? "," : "") + ("string" === c ? '"' + k[l] + '"' : k[l]);
+    for (let g = 0, h; g < d.length; g++) {
+      h = d[g] || [""];
+      let k = "";
+      for (let l = 0; l < h.length; l++) {
+        k += (k ? "," : "") + ("string" === c ? '"' + h[l] + '"' : h[l]);
       }
-      h = "[" + h + "]";
-      f += (f ? "," : "") + h;
+      k = "[" + k + "]";
+      f += (f ? "," : "") + k;
     }
     f = '["' + a + '",[' + f + "]]";
     b += (b ? "," : "") + f;
@@ -477,8 +477,8 @@ function za(a, c) {
       c -= g.length;
     } else {
       c = g[e ? "splice" : "slice"](c, b);
-      const k = c.length;
-      if (k && (d = d.length ? d.concat(c) : c, b -= k, e && (a.length -= k), !b)) {
+      const h = c.length;
+      if (h && (d = d.length ? d.concat(c) : c, b -= h, e && (a.length -= h), !b)) {
         break;
       }
       c = 0;
@@ -513,13 +513,13 @@ function R(a) {
     if ("indexOf" === e) {
       return function(d) {
         let f = 0;
-        for (let g = 0, k, h; g < c.index.length; g++) {
-          k = c.index[g];
-          h = k.indexOf(d);
-          if (0 <= h) {
-            return f + h;
+        for (let g = 0, h, k; g < c.index.length; g++) {
+          h = c.index[g];
+          k = h.indexOf(d);
+          if (0 <= k) {
+            return f + k;
           }
-          f += k.length;
+          f += h.length;
         }
         return -1;
       };
@@ -569,7 +569,7 @@ function S(a = 8) {
   if (!this || this.constructor !== S) {
     return new S(a);
   }
-  this.index = B();
+  this.index = A();
   this.h = [];
   this.size = 0;
   32 < a ? (this.B = Ba, this.A = BigInt(a)) : (this.B = Ca, this.A = a);
@@ -587,7 +587,7 @@ function T(a = 8) {
   if (!this || this.constructor !== T) {
     return new T(a);
   }
-  this.index = B();
+  this.index = A();
   this.h = [];
   this.size = 0;
   32 < a ? (this.B = Ba, this.A = BigInt(a)) : (this.B = Ca, this.A = a);
@@ -597,35 +597,35 @@ T.prototype.add = function(a) {
   let b = this.index[c];
   b ? (c = b.size, b.add(a), (c -= b.size) && this.size++) : (this.index[c] = b = new Set([a]), this.h.push(b), this.size++);
 };
-v = S.prototype;
-v.has = T.prototype.has = function(a) {
+t = S.prototype;
+t.has = T.prototype.has = function(a) {
   const c = this.index[this.B(a)];
   return c && c.has(a);
 };
-v.delete = T.prototype.delete = function(a) {
+t.delete = T.prototype.delete = function(a) {
   const c = this.index[this.B(a)];
   c && c.delete(a) && this.size--;
 };
-v.clear = T.prototype.clear = function() {
-  this.index = B();
+t.clear = T.prototype.clear = function() {
+  this.index = A();
   this.h = [];
   this.size = 0;
 };
-v.values = T.prototype.values = function*() {
+t.values = T.prototype.values = function*() {
   for (let a = 0; a < this.h.length; a++) {
     for (let c of this.h[a].values()) {
       yield c;
     }
   }
 };
-v.keys = T.prototype.keys = function*() {
+t.keys = T.prototype.keys = function*() {
   for (let a = 0; a < this.h.length; a++) {
     for (let c of this.h[a].keys()) {
       yield c;
     }
   }
 };
-v.entries = T.prototype.entries = function*() {
+t.entries = T.prototype.entries = function*() {
   for (let a = 0; a < this.h.length; a++) {
     for (let c of this.h[a].entries()) {
       yield c;
@@ -660,55 +660,55 @@ function Ba(a) {
   return b;
 }
 ;U.prototype.add = function(a, c, b) {
-  H(a) && (c = a, a = ba(c, this.key));
+  G(a) && (c = a, a = ba(c, this.key));
   if (c && (a || 0 === a)) {
     if (!b && this.reg.has(a)) {
       return this.update(a, c);
     }
-    for (let k = 0, h; k < this.field.length; k++) {
-      h = this.D[k];
-      var e = this.index.get(this.field[k]);
-      if ("function" === typeof h) {
-        var d = h(c);
+    for (let h = 0, k; h < this.field.length; h++) {
+      k = this.F[h];
+      var e = this.index.get(this.field[h]);
+      if ("function" === typeof k) {
+        var d = k(c);
         d && e.add(a, d, !1, !0);
       } else {
-        if (d = h.I, !d || d(c)) {
-          h.constructor === String ? h = ["" + h] : F(h) && (h = [h]), Da(c, h, this.J, 0, e, a, h[0], b);
+        if (d = k.I, !d || d(c)) {
+          k.constructor === String ? k = ["" + k] : D(k) && (k = [k]), Da(c, k, this.J, 0, e, a, k[0], b);
         }
       }
     }
     if (this.tag) {
-      for (e = 0; e < this.F.length; e++) {
-        var f = this.F[e], g = this.R[e];
+      for (e = 0; e < this.D.length; e++) {
+        var f = this.D[e], g = this.R[e];
         d = this.tag.get(g);
-        let k = B();
+        let h = A();
         if ("function" === typeof f) {
           if (f = f(c), !f) {
             continue;
           }
         } else {
-          const h = f.I;
-          if (h && !h(c)) {
+          const k = f.I;
+          if (k && !k(c)) {
             continue;
           }
           f.constructor === String && (f = "" + f);
           f = ba(c, f);
         }
         if (d && f) {
-          F(f) && (f = [f]);
-          for (let h = 0, l, n; h < f.length; h++) {
-            if (l = f[h], !k[l] && (k[l] = 1, (g = d.get(l)) ? n = g : d.set(l, n = []), !b || !n.includes(a))) {
-              if (n.length === 2 ** 31 - 1) {
-                g = new R(n);
+          D(f) && (f = [f]);
+          for (let k = 0, l, m; k < f.length; k++) {
+            if (l = f[k], !h[l] && (h[l] = 1, (g = d.get(l)) ? m = g : d.set(l, m = []), !b || !m.includes(a))) {
+              if (m.length === 2 ** 31 - 1) {
+                g = new R(m);
                 if (this.fastupdate) {
-                  for (let m of this.reg.values()) {
-                    m.includes(n) && (m[m.indexOf(n)] = g);
+                  for (let n of this.reg.values()) {
+                    n.includes(m) && (n[n.indexOf(m)] = g);
                   }
                 }
-                d.set(l, n = g);
+                d.set(l, m = g);
               }
-              n.push(a);
-              this.fastupdate && ((g = this.reg.get(a)) ? g.push(n) : this.reg.set(a, [n]));
+              m.push(a);
+              this.fastupdate && ((g = this.reg.get(a)) ? g.push(m) : this.reg.set(a, [m]));
             }
           }
         } else {
@@ -717,29 +717,29 @@ function Ba(a) {
       }
     }
     if (this.store && (!b || !this.store.has(a))) {
-      let k;
+      let h;
       if (this.C) {
-        k = B();
-        for (let h = 0, l; h < this.C.length; h++) {
-          l = this.C[h];
+        h = A();
+        for (let k = 0, l; k < this.C.length; k++) {
+          l = this.C[k];
           if ((b = l.I) && !b(c)) {
             continue;
           }
-          let n;
+          let m;
           if ("function" === typeof l) {
-            n = l(c);
-            if (!n) {
+            m = l(c);
+            if (!m) {
               continue;
             }
             l = [l.V];
-          } else if (F(l) || l.constructor === String) {
-            k[l] = c[l];
+          } else if (D(l) || l.constructor === String) {
+            h[l] = c[l];
             continue;
           }
-          Ea(c, k, l, 0, l[0], n);
+          Ea(c, h, l, 0, l[0], m);
         }
       }
-      this.store.set(a, k || c);
+      this.store.set(a, h || c);
     }
     this.worker && (this.fastupdate || this.reg.add(a));
   }
@@ -755,11 +755,11 @@ function Ea(a, c, b, e, d, f) {
         Ea(a, c, b, e, d);
       }
     } else {
-      c = c[d] || (c[d] = B()), d = b[++e], Ea(a, c, b, e, d);
+      c = c[d] || (c[d] = A()), d = b[++e], Ea(a, c, b, e, d);
     }
   }
 }
-function Da(a, c, b, e, d, f, g, k) {
+function Da(a, c, b, e, d, f, g, h) {
   if (a = a[g]) {
     if (e === c.length - 1) {
       if (a.constructor === Array) {
@@ -771,14 +771,14 @@ function Da(a, c, b, e, d, f, g, k) {
         }
         a = a.join(" ");
       }
-      d.add(f, a, k, !0);
+      d.add(f, a, h, !0);
     } else {
       if (a.constructor === Array) {
         for (g = 0; g < a.length; g++) {
-          Da(a, c, b, e, d, f, g, k);
+          Da(a, c, b, e, d, f, g, h);
         }
       } else {
-        g = c[++e], Da(a, c, b, e, d, f, g, k);
+        g = c[++e], Da(a, c, b, e, d, f, g, h);
       }
     }
   } else {
@@ -786,77 +786,77 @@ function Da(a, c, b, e, d, f, g, k) {
   }
 }
 ;function Fa(a, c, b, e, d, f, g) {
-  const k = a.length;
-  let h = [], l, n;
-  l = B();
-  for (let m = 0, q, p, r, u; m < c; m++) {
-    for (let t = 0; t < k; t++) {
-      if (r = a[t], m < r.length && (q = r[m])) {
-        for (let w = 0; w < q.length; w++) {
-          p = q[w];
-          (n = l[p]) ? l[p]++ : (n = 0, l[p] = 1);
-          u = h[n] || (h[n] = []);
+  const h = a.length;
+  let k = [], l, m;
+  l = A();
+  for (let n = 0, p, r, q, u; n < c; n++) {
+    for (let v = 0; v < h; v++) {
+      if (q = a[v], n < q.length && (p = q[n])) {
+        for (let w = 0; w < p.length; w++) {
+          r = p[w];
+          (m = l[r]) ? l[r]++ : (m = 0, l[r] = 1);
+          u = k[m] || (k[m] = []);
           if (!g) {
-            let y = m + (t || !d ? 0 : f || 0);
-            u = u[y] || (u[y] = []);
+            let x = n + (v || !d ? 0 : f || 0);
+            u = u[x] || (u[x] = []);
           }
-          u.push(p);
-          if (g && b && n === k - 1 && u.length - e === b) {
+          u.push(r);
+          if (g && b && m === h - 1 && u.length - e === b) {
             return e ? u.slice(e) : u;
           }
         }
       }
     }
   }
-  if (a = h.length) {
+  if (a = k.length) {
     if (d) {
-      h = 1 < h.length ? Ga(h, b, e, g, f) : (h = h[0]).length > b || e ? h.slice(e, b + e) : h;
+      k = 1 < k.length ? Ga(k, b, e, g, f) : (k = k[0]).length > b || e ? k.slice(e, b + e) : k;
     } else {
-      if (a < k) {
+      if (a < h) {
         return [];
       }
-      h = h[a - 1];
+      k = k[a - 1];
       if (b || e) {
         if (g) {
-          if (h.length > b || e) {
-            h = h.slice(e, b + e);
+          if (k.length > b || e) {
+            k = k.slice(e, b + e);
           }
         } else {
           d = [];
-          for (let m = 0, q; m < h.length; m++) {
-            if (q = h[m], q.length > e) {
-              e -= q.length;
+          for (let n = 0, p; n < k.length; n++) {
+            if (p = k[n], p.length > e) {
+              e -= p.length;
             } else {
-              if (q.length > b || e) {
-                q = q.slice(e, b + e), b -= q.length, e && (e -= q.length);
+              if (p.length > b || e) {
+                p = p.slice(e, b + e), b -= p.length, e && (e -= p.length);
               }
-              d.push(q);
+              d.push(p);
               if (!b) {
                 break;
               }
             }
           }
-          h = 1 < d.length ? [].concat.apply([], d) : d[0];
+          k = 1 < d.length ? [].concat.apply([], d) : d[0];
         }
       }
     }
   }
-  return h;
+  return k;
 }
 function Ga(a, c, b, e, d) {
-  const f = [], g = B();
-  let k;
-  var h = a.length;
+  const f = [], g = A();
+  let h;
+  var k = a.length;
   let l;
   if (e) {
-    for (d = h - 1; 0 <= d; d--) {
+    for (d = k - 1; 0 <= d; d--) {
       if (l = (e = a[d]) && e.length) {
-        for (h = 0; h < l; h++) {
-          if (k = e[h], !g[k]) {
-            if (g[k] = 1, b) {
+        for (k = 0; k < l; k++) {
+          if (h = e[k], !g[h]) {
+            if (g[h] = 1, b) {
               b--;
             } else {
-              if (f.push(k), f.length === c) {
+              if (f.push(h), f.length === c) {
                 return f;
               }
             }
@@ -865,18 +865,18 @@ function Ga(a, c, b, e, d) {
       }
     }
   } else {
-    for (let n = h - 1, m, q = 0; 0 <= n; n--) {
-      m = a[n];
-      for (let p = 0; p < m.length; p++) {
-        if (l = (e = m[p]) && e.length) {
-          for (let r = 0; r < l; r++) {
-            if (k = e[r], !g[k]) {
-              if (g[k] = 1, b) {
+    for (let m = k - 1, n, p = 0; 0 <= m; m--) {
+      n = a[m];
+      for (let r = 0; r < n.length; r++) {
+        if (l = (e = n[r]) && e.length) {
+          for (let q = 0; q < l; q++) {
+            if (h = e[q], !g[h]) {
+              if (g[h] = 1, b) {
                 b--;
               } else {
-                let u = (p + (n < h - 1 ? d || 0 : 0)) / (n + 1) | 0;
-                (f[u] || (f[u] = [])).push(k);
-                if (++q === c) {
+                let u = (r + (m < k - 1 ? d || 0 : 0)) / (m + 1) | 0;
+                (f[u] || (f[u] = [])).push(h);
+                if (++p === c) {
                   return f;
                 }
               }
@@ -889,11 +889,11 @@ function Ga(a, c, b, e, d) {
   return f;
 }
 function Ha(a, c, b) {
-  const e = B(), d = [];
+  const e = A(), d = [];
   for (let f = 0, g; f < c.length; f++) {
     g = c[f];
-    for (let k = 0; k < g.length; k++) {
-      e[g[k]] = 1;
+    for (let h = 0; h < g.length; h++) {
+      e[g[h]] = 1;
     }
   }
   if (b) {
@@ -901,9 +901,9 @@ function Ha(a, c, b) {
       g = a[f], e[g] && (d.push(g), e[g] = 0);
     }
   } else {
-    for (let f = 0, g, k; f < a.result.length; f++) {
+    for (let f = 0, g, h; f < a.result.length; f++) {
       for (g = a.result[f], c = 0; c < g.length; c++) {
-        k = g[c], e[k] && ((d[f] || (d[f] = [])).push(k), e[k] = 0);
+        h = g[c], e[h] && ((d[f] || (d[f] = [])).push(h), e[h] = 0);
       }
     }
   }
@@ -917,21 +917,21 @@ function Ha(a, c, b) {
     return a = a[0], a = b || a.length > c ? c ? a.slice(b, b + c) : a.slice(b) : a, e ? V.call(this, a) : a;
   }
   let d = [];
-  for (let f = 0, g, k; f < a.length; f++) {
-    if ((g = a[f]) && (k = g.length)) {
+  for (let f = 0, g, h; f < a.length; f++) {
+    if ((g = a[f]) && (h = g.length)) {
       if (b) {
-        if (b >= k) {
-          b -= k;
+        if (b >= h) {
+          b -= h;
           continue;
         }
-        b < k && (g = c ? g.slice(b, b + c) : g.slice(b), k = g.length, b = 0);
+        b < h && (g = c ? g.slice(b, b + c) : g.slice(b), h = g.length, b = 0);
       }
-      k > c && (g = g.slice(0, c), k = c);
-      if (!d.length && k >= c) {
+      h > c && (g = g.slice(0, c), h = c);
+      if (!d.length && h >= c) {
         return e ? V.call(this, g) : g;
       }
       d.push(g);
-      c -= k;
+      c -= h;
       if (!c) {
         break;
       }
@@ -943,48 +943,48 @@ function Ha(a, c, b) {
 ;function Ja(a, c, b) {
   var e = b[0];
   if (e.then) {
-    return Promise.all(b).then(function(n) {
-      return a[c].apply(a, n);
+    return Promise.all(b).then(function(m) {
+      return a[c].apply(a, m);
     });
   }
   if (e[0] && e[0].index) {
     return a[c].apply(a, e);
   }
   e = [];
-  let d = [], f = 0, g = 0, k, h, l;
-  for (let n = 0, m; n < b.length; n++) {
-    if (m = b[n]) {
-      let q;
-      if (m.constructor === W) {
-        q = m.result;
-      } else if (m.constructor === Array) {
-        q = m;
+  let d = [], f = 0, g = 0, h, k, l;
+  for (let m = 0, n; m < b.length; m++) {
+    if (n = b[m]) {
+      let p;
+      if (n.constructor === W) {
+        p = n.result;
+      } else if (n.constructor === Array) {
+        p = n;
       } else {
-        if (f = m.limit || 0, g = m.offset || 0, l = m.suggest, h = m.resolve, k = m.enrich && h, m.index) {
-          m.resolve = !1, m.enrich = !1, q = m.index.search(m).result, m.resolve = h, m.enrich = k;
-        } else if (m.and) {
-          q = a.and(m.and);
-        } else if (m.or) {
-          q = a.or(m.or);
-        } else if (m.xor) {
-          q = a.xor(m.xor);
-        } else if (m.not) {
-          q = a.not(m.not);
+        if (f = n.limit || 0, g = n.offset || 0, l = n.suggest, k = n.resolve, h = n.enrich && k, n.index) {
+          n.resolve = !1, n.enrich = !1, p = n.index.search(n).result, n.resolve = k, n.enrich = h;
+        } else if (n.and) {
+          p = a.and(n.and);
+        } else if (n.or) {
+          p = a.or(n.or);
+        } else if (n.xor) {
+          p = a.xor(n.xor);
+        } else if (n.not) {
+          p = a.not(n.not);
         } else {
           continue;
         }
       }
-      if (q.then) {
-        d.push(q);
-      } else if (q.length) {
-        e[n] = q;
+      if (p.then) {
+        d.push(p);
+      } else if (p.length) {
+        e[m] = p;
       } else if (!l && ("and" === c || "xor" === c)) {
         e = [];
         break;
       }
     }
   }
-  return {O:e, P:d, limit:f, offset:g, enrich:k, resolve:h, suggest:l};
+  return {O:e, P:d, limit:f, offset:g, enrich:h, resolve:k, suggest:l};
 }
 ;W.prototype.or = function() {
   const {O:a, P:c, limit:b, offset:e, enrich:d, resolve:f} = Ja(this, "or", arguments);
@@ -993,10 +993,10 @@ function Ha(a, c, b) {
 function Ka(a, c, b, e, d, f) {
   if (c.length) {
     const g = this;
-    return Promise.all(c).then(function(k) {
+    return Promise.all(c).then(function(h) {
       a = [];
-      for (let h = 0, l; h < k.length; h++) {
-        (l = k[h]).length && (a[h] = l);
+      for (let k = 0, l; k < h.length; k++) {
+        (l = h[k]).length && (a[k] = l);
       }
       return Ka.call(g, a, [], b, e, d, f);
     });
@@ -1011,20 +1011,20 @@ function Ka(a, c, b, e, d, f) {
     f && (a = !!f.suggest, d = f.resolve, c = f.limit, b = f.offset, e = f.enrich && d);
   }
   if (a) {
-    const {O:f, P:g, limit:k, offset:h, enrich:l, resolve:n, suggest:m} = Ja(this, "and", arguments);
-    return La.call(this, f, g, k, h, l, n, m);
+    const {O:f, P:g, limit:h, offset:k, enrich:l, resolve:m, suggest:n} = Ja(this, "and", arguments);
+    return La.call(this, f, g, h, k, l, m, n);
   }
   return d ? this.resolve(c, b, e) : this;
 };
 function La(a, c, b, e, d, f, g) {
   if (c.length) {
-    const k = this;
-    return Promise.all(c).then(function(h) {
+    const h = this;
+    return Promise.all(c).then(function(k) {
       a = [];
-      for (let l = 0, n; l < h.length; l++) {
-        (n = h[l]).length && (a[l] = n);
+      for (let l = 0, m; l < k.length; l++) {
+        (m = k[l]).length && (a[l] = m);
       }
-      return La.call(k, a, [], b, e, d, f, g);
+      return La.call(h, a, [], b, e, d, f, g);
     });
   }
   if (a.length) {
@@ -1047,13 +1047,13 @@ function La(a, c, b, e, d, f, g) {
 };
 function Ma(a, c, b, e, d, f, g) {
   if (c.length) {
-    const k = this;
-    return Promise.all(c).then(function(h) {
+    const h = this;
+    return Promise.all(c).then(function(k) {
       a = [];
-      for (let l = 0, n; l < h.length; l++) {
-        (n = h[l]).length && (a[l] = n);
+      for (let l = 0, m; l < k.length; l++) {
+        (m = k[l]).length && (a[l] = m);
       }
-      return Ma.call(k, a, [], b, e, d, f, g);
+      return Ma.call(h, a, [], b, e, d, f, g);
     });
   }
   if (a.length) {
@@ -1068,38 +1068,38 @@ function Ma(a, c, b, e, d, f, g) {
   return f ? this.resolve(b, e, d) : this;
 }
 function Na(a, c, b, e, d) {
-  const f = [], g = B();
-  let k = 0;
-  for (let h = 0, l; h < a.length; h++) {
-    if (l = a[h]) {
-      k < l.length && (k = l.length);
-      for (let n = 0, m; n < l.length; n++) {
-        if (m = l[n]) {
-          for (let q = 0, p; q < m.length; q++) {
-            p = m[q], g[p] = g[p] ? 2 : 1;
+  const f = [], g = A();
+  let h = 0;
+  for (let k = 0, l; k < a.length; k++) {
+    if (l = a[k]) {
+      h < l.length && (h = l.length);
+      for (let m = 0, n; m < l.length; m++) {
+        if (n = l[m]) {
+          for (let p = 0, r; p < n.length; p++) {
+            r = n[p], g[r] = g[r] ? 2 : 1;
           }
         }
       }
     }
   }
-  for (let h = 0, l, n = 0; h < k; h++) {
-    for (let m = 0, q; m < a.length; m++) {
-      if (q = a[m]) {
-        if (l = q[h]) {
-          for (let p = 0, r; p < l.length; p++) {
-            if (r = l[p], 1 === g[r]) {
+  for (let k = 0, l, m = 0; k < h; k++) {
+    for (let n = 0, p; n < a.length; n++) {
+      if (p = a[n]) {
+        if (l = p[k]) {
+          for (let r = 0, q; r < l.length; r++) {
+            if (q = l[r], 1 === g[q]) {
               if (b) {
                 b--;
               } else {
                 if (e) {
-                  if (f.push(r), f.length === c) {
+                  if (f.push(q), f.length === c) {
                     return f;
                   }
                 } else {
-                  const u = h + (m ? d : 0);
+                  const u = k + (n ? d : 0);
                   f[u] || (f[u] = []);
-                  f[u].push(r);
-                  if (++n === c) {
+                  f[u].push(q);
+                  if (++m === c) {
                     return f;
                   }
                 }
@@ -1118,13 +1118,13 @@ function Na(a, c, b, e, d) {
 };
 function Oa(a, c, b, e, d, f, g) {
   if (c.length) {
-    const k = this;
-    return Promise.all(c).then(function(h) {
+    const h = this;
+    return Promise.all(c).then(function(k) {
       a = [];
-      for (let l = 0, n; l < h.length; l++) {
-        (n = h[l]).length && (a[l] = n);
+      for (let l = 0, m; l < k.length; l++) {
+        (m = k[l]).length && (a[l] = m);
       }
-      return Oa.call(k, a, [], b, e, d, f, g);
+      return Oa.call(h, a, [], b, e, d, f, g);
     });
   }
   if (a.length && this.result.length) {
@@ -1137,10 +1137,10 @@ function Oa(a, c, b, e, d, f, g) {
 function Pa(a, c, b, e) {
   const d = [];
   a = new Set(a.flat().flat());
-  for (let f = 0, g, k = 0; f < this.result.length; f++) {
+  for (let f = 0, g, h = 0; f < this.result.length; f++) {
     if (g = this.result[f]) {
-      for (let h = 0, l; h < g.length; h++) {
-        if (l = g[h], !a.has(l)) {
+      for (let k = 0, l; k < g.length; k++) {
+        if (l = g[k], !a.has(l)) {
           if (b) {
             b--;
           } else {
@@ -1149,7 +1149,7 @@ function Pa(a, c, b, e) {
                 return d;
               }
             } else {
-              if (d[f] || (d[f] = []), d[f].push(l), ++k === c) {
+              if (d[f] || (d[f] = []), d[f].push(l), ++h === c) {
                 return d;
               }
             }
@@ -1211,264 +1211,274 @@ W.prototype.resolve = function(a, c, b) {
   this.result = this.index = null;
   return e.length ? ("object" === typeof a && (b = a.enrich, c = a.offset, a = a.limit), Ia.call(d, e, a || 100, c, b)) : e;
 };
-B();
+A();
 U.prototype.search = function(a, c, b, e) {
-  b || (!c && H(a) ? (b = a, a = "") : H(c) && (b = c, c = 0));
+  b || (!c && G(a) ? (b = a, a = "") : G(c) && (b = c, c = 0));
   let d = [];
-  var f = [], g;
+  var f = [];
+  let g;
+  var h;
   let k;
-  let h, l;
+  let l, m;
   let n = 0;
-  var m = !0;
-  let q;
+  var p = !0;
+  let r;
   if (b) {
     b.constructor === Array && (b = {index:b});
     a = b.query || a;
-    var p = b.pluck;
+    g = b.pluck;
     k = b.merge;
-    h = p || b.field || (h = b.index) && (h.index ? null : h);
-    l = this.tag && b.tag;
-    var r = b.suggest;
-    m = !1 !== b.resolve;
-    if (!m && !p) {
-      if (h = h || this.field) {
-        F(h) ? p = h : (h.constructor === Array && 1 === h.length && (h = h[0]), p = h.field || h.index);
+    l = g || b.field || (l = b.index) && (l.index ? null : l);
+    m = this.tag && b.tag;
+    var q = b.suggest;
+    p = !1 !== b.resolve;
+    if (!p && !g) {
+      if (l = l || this.field) {
+        D(l) ? g = l : (l.constructor === Array && 1 === l.length && (l = l[0]), g = l.field || l.index);
       }
-      if (!p) {
+      if (!g) {
         throw Error("Apply resolver on document search requires either the option 'pluck' to be set or just select a single field name in your query.");
       }
     }
-    this.store && b.enrich && !m && console.warn("Enrich results can only be done on a final resolver task or when calling .resolve({ enrich: true })");
-    q = (g = this.store && b.enrich && m) && b.highlight;
+    this.store && b.enrich && !p && console.warn("Enrich results can only be done on a final resolver task or when calling .resolve({ enrich: true })");
+    r = (h = this.store && b.enrich && p) && b.highlight;
     c = b.limit || c;
     var u = b.offset || 0;
     c || (c = 100);
-    if (l && (!this.db || !e)) {
-      l.constructor !== Array && (l = [l]);
-      var t = [];
-      for (let z = 0, x; z < l.length; z++) {
-        x = l[z];
-        if (F(x)) {
+    if (m && (!this.db || !e)) {
+      m.constructor !== Array && (m = [m]);
+      var v = [];
+      for (let B = 0, y; B < m.length; B++) {
+        y = m[B];
+        if (D(y)) {
           throw Error("A tag option can't be a string, instead it needs a { field: tag } format.");
         }
-        if (x.field && x.tag) {
-          var w = x.tag;
+        if (y.field && y.tag) {
+          var w = y.tag;
           if (w.constructor === Array) {
-            for (var y = 0; y < w.length; y++) {
-              t.push(x.field, w[y]);
+            for (var x = 0; x < w.length; x++) {
+              v.push(y.field, w[x]);
             }
           } else {
-            t.push(x.field, w);
+            v.push(y.field, w);
           }
         } else {
-          w = Object.keys(x);
-          for (let C = 0, G, D; C < w.length; C++) {
-            if (G = w[C], D = x[G], D.constructor === Array) {
-              for (y = 0; y < D.length; y++) {
-                t.push(G, D[y]);
+          w = Object.keys(y);
+          for (let C = 0, M, E; C < w.length; C++) {
+            if (M = w[C], E = y[M], E.constructor === Array) {
+              for (x = 0; x < E.length; x++) {
+                v.push(M, E[x]);
               }
             } else {
-              t.push(G, D);
+              v.push(M, E);
             }
           }
         }
       }
-      if (!t.length) {
+      if (!v.length) {
         throw Error("Your tag definition within the search options is probably wrong. No valid tags found.");
       }
-      l = t;
+      m = v;
       if (!a) {
-        m = [];
-        if (t.length) {
-          for (f = 0; f < t.length; f += 2) {
+        p = [];
+        if (v.length) {
+          for (f = 0; f < v.length; f += 2) {
             if (this.db) {
-              p = this.index.get(t[f]);
-              if (!p) {
-                console.warn("Tag '" + t[f] + ":" + t[f + 1] + "' will be skipped because there is no field '" + t[f] + "'.");
+              q = this.index.get(v[f]);
+              if (!q) {
+                console.warn("Tag '" + v[f] + ":" + v[f + 1] + "' will be skipped because there is no field '" + v[f] + "'.");
                 continue;
               }
-              m.push(p = p.db.tag(t[f + 1], c, u, g));
+              p.push(q = q.db.tag(v[f + 1], c, u, h));
             } else {
-              p = Qa.call(this, t[f], t[f + 1], c, u, g);
+              q = Qa.call(this, v[f], v[f + 1], c, u, h);
             }
-            d.push({field:t[f], tag:t[f + 1], result:p});
+            d.push({field:v[f], tag:v[f + 1], result:q});
           }
         }
-        return m.length ? Promise.all(m).then(function(z) {
-          for (let x = 0; x < z.length; x++) {
-            d[x].result = z[x];
+        return p.length ? Promise.all(p).then(function(B) {
+          for (let y = 0; y < B.length; y++) {
+            d[y].result = B[y];
           }
           return d;
         }) : d;
       }
     }
-    h && h.constructor !== Array && (h = [h]);
+    l && l.constructor !== Array && (l = [l]);
   }
-  h || (h = this.field);
-  t = !e && (this.worker || this.db) && [];
-  let E;
-  for (let z = 0, x, C, G; z < h.length; z++) {
-    C = h[z];
-    if (this.db && this.tag && !this.D[z]) {
+  l || (l = this.field);
+  v = !e && (this.worker || this.db) && [];
+  let F;
+  for (let B = 0, y, C, M; B < l.length; B++) {
+    C = l[B];
+    if (this.db && this.tag && !this.F[B]) {
       continue;
     }
-    let D;
-    F(C) || (D = C, C = D.field, a = D.query || a, c = D.limit || c, u = D.offset || u, r = D.suggest || r, g = this.store && (D.enrich || g));
+    let E;
+    D(C) || (E = C, C = E.field, a = E.query || a, c = E.limit || c, u = E.offset || u, q = E.suggest || q, h = this.store && (E.enrich || h));
     if (e) {
-      x = e[z];
+      y = e[B];
     } else {
-      if (w = D || b, y = this.index.get(C), l && (this.db && (w.tag = l, E = y.db.support_tag_search, w.field = h), E || (w.enrich = !1)), t) {
-        t[z] = y.search(a, c, w);
-        w && g && (w.enrich = g);
+      if (w = E || b, x = this.index.get(C), m && (this.db && (w.tag = m, F = x.db.support_tag_search, w.field = l), F || (w.enrich = !1)), v) {
+        v[B] = x.search(a, c, w);
+        w && h && (w.enrich = h);
         continue;
       } else {
-        x = y.search(a, c, w), w && g && (w.enrich = g);
+        y = x.search(a, c, w), w && h && (w.enrich = h);
       }
     }
-    G = x && (m ? x.length : x.result.length);
-    if (l && G) {
+    M = y && (p ? y.length : y.result.length);
+    if (m && M) {
       w = [];
-      y = 0;
+      x = 0;
       if (this.db && e) {
-        if (!E) {
-          for (let K = h.length; K < e.length; K++) {
-            let L = e[K];
-            if (L && L.length) {
-              y++, w.push(L);
-            } else if (!r) {
-              return m ? d : new W(d);
+        if (!F) {
+          for (let J = l.length; J < e.length; J++) {
+            let K = e[J];
+            if (K && K.length) {
+              x++, w.push(K);
+            } else if (!q) {
+              return p ? d : new W(d);
             }
           }
         }
       } else {
-        for (let K = 0, L, ob; K < l.length; K += 2) {
-          L = this.tag.get(l[K]);
-          if (!L) {
-            if (console.warn("Tag '" + l[K] + ":" + l[K + 1] + "' will be skipped because there is no field '" + l[K] + "'."), r) {
+        for (let J = 0, K, ob; J < m.length; J += 2) {
+          K = this.tag.get(m[J]);
+          if (!K) {
+            if (console.warn("Tag '" + m[J] + ":" + m[J + 1] + "' will be skipped because there is no field '" + m[J] + "'."), q) {
               continue;
             } else {
-              return m ? d : new W(d);
+              return p ? d : new W(d);
             }
           }
-          if (ob = (L = L && L.get(l[K + 1])) && L.length) {
-            y++, w.push(L);
-          } else if (!r) {
-            return m ? d : new W(d);
+          if (ob = (K = K && K.get(m[J + 1])) && K.length) {
+            x++, w.push(K);
+          } else if (!q) {
+            return p ? d : new W(d);
           }
         }
       }
-      if (y) {
-        x = Ha(x, w, m);
-        G = x.length;
-        if (!G && !r) {
-          return m ? x : new W(x);
+      if (x) {
+        y = Ha(y, w, p);
+        M = y.length;
+        if (!M && !q) {
+          return p ? y : new W(y);
         }
-        y--;
+        x--;
       }
     }
-    if (G) {
-      f[n] = C, d.push(x), n++;
-    } else if (1 === h.length) {
-      return m ? d : new W(d);
+    if (M) {
+      f[n] = C, d.push(y), n++;
+    } else if (1 === l.length) {
+      return p ? d : new W(d);
     }
   }
-  if (t) {
-    if (this.db && l && l.length && !E) {
-      for (g = 0; g < l.length; g += 2) {
-        f = this.index.get(l[g]);
+  if (v) {
+    if (this.db && m && m.length && !F) {
+      for (h = 0; h < m.length; h += 2) {
+        f = this.index.get(m[h]);
         if (!f) {
-          if (console.warn("Tag '" + l[g] + ":" + l[g + 1] + "' was not found because there is no field '" + l[g] + "'."), r) {
+          if (console.warn("Tag '" + m[h] + ":" + m[h + 1] + "' was not found because there is no field '" + m[h] + "'."), q) {
             continue;
           } else {
-            return m ? d : new W(d);
+            return p ? d : new W(d);
           }
         }
-        t.push(f.db.tag(l[g + 1], c, u, !1));
+        v.push(f.db.tag(m[h + 1], c, u, !1));
       }
     }
-    const z = this;
-    return Promise.all(t).then(function(x) {
-      return x.length ? z.search(a, c, b, x) : x;
+    const B = this;
+    return Promise.all(v).then(function(y) {
+      return y.length ? B.search(a, c, b, y) : y;
     });
   }
   if (!n) {
-    return m ? d : new W(d);
+    return p ? d : new W(d);
   }
-  if (p && (!g || !this.store)) {
+  if (g && (!h || !this.store)) {
     return d[0];
   }
-  t = [];
+  v = [];
   for (u = 0; u < f.length; u++) {
-    r = d[u];
-    g && r.length && "undefined" === typeof r[0].doc && (this.db ? t.push(r = this.index.get(this.field[0]).db.enrich(r)) : r = V.call(this, r));
-    if (p) {
-      return m ? r : new W(r);
+    q = d[u];
+    h && q.length && "undefined" === typeof q[0].doc && (this.db ? v.push(q = this.index.get(this.field[0]).db.enrich(q)) : q = V.call(this, q));
+    if (g) {
+      return p ? r ? Ra(a, q, this.index, g, r) : q : new W(q);
     }
-    d[u] = {field:f[u], result:r};
+    d[u] = {field:f[u], result:q};
   }
-  if (g && this.db && t.length) {
-    const z = this;
-    return Promise.all(t).then(function(x) {
-      for (let C = 0; C < x.length; C++) {
-        d[C].result = x[C];
+  if (h && this.db && v.length) {
+    const B = this;
+    return Promise.all(v).then(function(y) {
+      for (let C = 0; C < y.length; C++) {
+        d[C].result = y[C];
       }
-      return k ? Ra(d) : q ? Sa(d, a, z.index, z.field, z.D, q) : d;
+      return k ? Sa(d) : r ? Ra(a, d, B.index, g, r) : d;
     });
   }
-  return k ? Ra(d) : q ? Sa(d, a, this.index, this.field, this.D, q) : d;
+  return k ? Sa(d) : r ? Ra(a, d, this.index, g, r) : d;
 };
-function Sa(a, c, b, e, d, f) {
-  let g, k, h;
-  for (let l = 0, n, m, q, p; l < a.length; l++) {
-    n = a[l].field;
-    if (!n) {
-      continue;
+function Ra(a, c, b, e, d) {
+  let f, g;
+  for (let k = 0, l, m, n; k < c.length; k++) {
+    let p;
+    if (e) {
+      p = c, n = e;
+    } else {
+      var h = c[k];
+      n = h.field;
+      if (!n) {
+        continue;
+      }
+      p = h.result;
     }
-    let r = a[l].result;
-    q = b.get(n);
-    m = q.encoder;
-    h = q.tokenize;
-    p = d[e.indexOf(n)];
-    m !== g && (g = m, k = g.encode(c));
-    for (let u = 0; u < r.length; u++) {
-      let t = "", w = ba(r[u].doc, p).split(/\s+/);
-      for (let y = 0, E, z; y < w.length; y++) {
-        E = w[y];
-        z = m.encode(E);
-        z = 1 < z.length ? z.join(" ") : z[0];
-        let x;
-        if (z && E) {
-          for (let C = 0, G; C < k.length; C++) {
-            if (G = k[C], "strict" === h) {
-              if (z === G) {
-                t += (t ? " " : "") + f.replace("$1", E);
-                x = !0;
+    m = b.get(n);
+    l = m.encoder;
+    h = m.tokenize;
+    l !== f && (f = l, g = f.encode(a));
+    for (let r = 0; r < p.length; r++) {
+      let q = "", u = ba(p[r].doc, n).split(/\s+/);
+      for (let v = 0, w, x; v < u.length; v++) {
+        w = u[v];
+        x = l.encode(w);
+        x = 1 < x.length ? x.join(" ") : x[0];
+        let F;
+        if (x && w) {
+          for (let B = 0, y; B < g.length; B++) {
+            if (y = g[B], "strict" === h) {
+              if (x === y) {
+                q += (q ? " " : "") + d.replace("$1", w);
+                F = !0;
                 break;
               }
             } else {
-              const D = z.indexOf(G);
-              if (-1 < D) {
-                t += (t ? " " : "") + E.substring(0, D) + f.replace("$1", E.substring(D, G.length)) + E.substring(D + G.length);
-                x = !0;
+              const C = x.indexOf(y);
+              if (-1 < C) {
+                q += (q ? " " : "") + w.substring(0, C) + d.replace("$1", w.substring(C, y.length)) + w.substring(C + y.length);
+                F = !0;
                 break;
               }
             }
           }
         }
-        x || (t += (t ? " " : "") + w[y]);
+        F || (q += (q ? " " : "") + u[v]);
       }
-      r[u].highlight = t;
+      p[r].highlight = q;
+    }
+    if (e) {
+      break;
     }
   }
-  return a;
+  return c;
 }
-function Ra(a) {
-  const c = [], b = B();
+function Sa(a) {
+  const c = [], b = A();
   for (let e = 0, d, f; e < a.length; e++) {
     d = a[e];
     f = d.result;
-    for (let g = 0, k, h, l; g < f.length; g++) {
-      h = f[g], "object" !== typeof h && (h = {id:h}), k = h.id, (l = b[k]) ? l.push(d.field) : (h.field = b[k] = [d.field], c.push(h));
+    for (let g = 0, h, k, l; g < f.length; g++) {
+      k = f[g], "object" !== typeof k && (k = {id:k}), h = k.id, (l = b[h]) ? l.push(d.field) : (k.field = b[h] = [d.field], c.push(k));
     }
   }
   return c;
@@ -1502,7 +1512,7 @@ function V(a) {
   }
   const c = a.document || a.doc || a;
   let b, e;
-  this.D = [];
+  this.F = [];
   this.field = [];
   this.J = [];
   this.key = (b = c.key || c.id) && Ta(b, this.J) || "id";
@@ -1520,7 +1530,7 @@ function V(a) {
   if (b = c.tag) {
     if ("string" === typeof b && (b = [b]), b.length) {
       this.tag = new Map();
-      this.F = [];
+      this.D = [];
       this.R = [];
       for (let d = 0, f, g; d < b.length; d++) {
         f = b[d];
@@ -1528,7 +1538,7 @@ function V(a) {
         if (!g) {
           throw Error("The tag field from the document descriptor is undefined.");
         }
-        f.custom ? this.F[d] = f.custom : (this.F[d] = Ta(g, this.J), f.filter && ("string" === typeof this.F[d] && (this.F[d] = new String(this.F[d])), this.F[d].I = f.filter));
+        f.custom ? this.D[d] = f.custom : (this.D[d] = Ta(g, this.J), f.filter && ("string" === typeof this.D[d] && (this.D[d] = new String(this.D[d])), this.D[d].I = f.filter));
         this.R[d] = g;
         this.tag.set(g, new Map());
       }
@@ -1544,9 +1554,9 @@ function V(a) {
       const d = this;
       return Promise.all(a).then(function(f) {
         let g = 0;
-        for (const k of d.index.entries()) {
-          const h = k[0];
-          k[1].then && d.index.set(h, f[g++]);
+        for (const h of d.index.entries()) {
+          const k = h[0];
+          h[1].then && d.index.set(k, f[g++]);
         }
         return d;
       });
@@ -1555,8 +1565,8 @@ function V(a) {
     a.db && (this.fastupdate = !1, this.mount(a.db));
   }
 }
-v = U.prototype;
-v.mount = function(a) {
+t = U.prototype;
+t.mount = function(a) {
   if (this.worker) {
     throw Error("You can't use Worker-Indexes on a persistent model. That would be useless, since each of the persistent model acts like Worker-Index by default (Master/Slave).");
   }
@@ -1576,16 +1586,16 @@ v.mount = function(a) {
   for (let d = 0, f, g; d < c.length; d++) {
     e.field = g = c[d];
     f = this.index.get(g);
-    const k = new a.constructor(a.id, e);
-    k.id = a.id;
-    b[d] = k.mount(f);
+    const h = new a.constructor(a.id, e);
+    h.id = a.id;
+    b[d] = h.mount(f);
     f.document = !0;
     d ? f.bypass = !0 : f.store = this.store;
   }
   this.db = !0;
   return Promise.all(b);
 };
-v.commit = async function(a, c) {
+t.commit = async function(a, c) {
   const b = [];
   for (const e of this.index.values()) {
     b.push(e.commit(a, c));
@@ -1593,7 +1603,7 @@ v.commit = async function(a, c) {
   await Promise.all(b);
   this.reg.clear();
 };
-v.destroy = function() {
+t.destroy = function() {
   const a = [];
   for (const c of this.index.values()) {
     a.push(c.destroy());
@@ -1603,22 +1613,22 @@ v.destroy = function() {
 function Ua(a, c) {
   const b = new Map();
   let e = c.index || c.field || c;
-  F(e) && (e = [e]);
+  D(e) && (e = [e]);
   for (let d = 0, f, g; d < e.length; d++) {
     f = e[d];
-    F(f) || (g = f, f = f.field);
-    g = H(g) ? Object.assign({}, a, g) : a;
+    D(f) || (g = f, f = f.field);
+    g = G(g) ? Object.assign({}, a, g) : a;
     if (this.worker) {
-      const k = new P(g);
-      b.set(f, k);
+      const h = new P(g);
+      b.set(f, h);
     }
     this.worker || b.set(f, new N(g, this.reg));
-    g.custom ? this.D[d] = g.custom : (this.D[d] = Ta(f, this.J), g.filter && ("string" === typeof this.D[d] && (this.D[d] = new String(this.D[d])), this.D[d].I = g.filter));
+    g.custom ? this.F[d] = g.custom : (this.F[d] = Ta(f, this.J), g.filter && ("string" === typeof this.F[d] && (this.F[d] = new String(this.F[d])), this.F[d].I = g.filter));
     this.field[d] = f;
   }
   if (this.C) {
     a = c.store;
-    F(a) && (a = [a]);
+    D(a) && (a = [a]);
     for (let d = 0, f, g; d < a.length; d++) {
       f = a[d], g = f.field || f, f.custom ? (this.C[d] = f.custom, f.custom.V = g) : (this.C[d] = Ta(g, this.J), f.filter && ("string" === typeof this.C[d] && (this.C[d] = new String(this.C[d])), this.C[d].I = f.filter));
     }
@@ -1634,14 +1644,14 @@ function Ta(a, c) {
   e < b.length && (b.length = e);
   return 1 < e ? b : b[0];
 }
-v.append = function(a, c) {
+t.append = function(a, c) {
   return this.add(a, c, !0);
 };
-v.update = function(a, c) {
+t.update = function(a, c) {
   return this.remove(a).add(a, c);
 };
-v.remove = function(a) {
-  H(a) && (a = ba(a, this.key));
+t.remove = function(a) {
+  G(a) && (a = ba(a, this.key));
   for (var c of this.index.values()) {
     c.remove(a, !0);
   }
@@ -1661,7 +1671,7 @@ v.remove = function(a) {
   this.cache && this.cache.remove(a);
   return this;
 };
-v.clear = function() {
+t.clear = function() {
   const a = [];
   for (const c of this.index.values()) {
     const b = c.clear();
@@ -1676,33 +1686,33 @@ v.clear = function() {
   this.cache && this.cache.clear();
   return a.length ? Promise.all(a) : this;
 };
-v.contain = function(a) {
+t.contain = function(a) {
   return this.db ? this.index.get(this.field[0]).db.has(a) : this.reg.has(a);
 };
-v.cleanup = function() {
+t.cleanup = function() {
   for (const a of this.index.values()) {
     a.cleanup();
   }
   return this;
 };
-v.get = function(a) {
+t.get = function(a) {
   return this.db ? this.index.get(this.field[0]).db.enrich(a).then(function(c) {
     return c[0] && c[0].doc || null;
   }) : this.store.get(a) || null;
 };
-v.set = function(a, c) {
+t.set = function(a, c) {
   "object" === typeof a && (c = a, a = ba(c, this.key));
   this.store.set(a, c);
   return this;
 };
-v.searchCache = Va;
-v.export = function(a, c, b = 0, e = 0) {
+t.searchCache = Va;
+t.export = function(a, c, b = 0, e = 0) {
   if (b < this.field.length) {
     const g = this.field[b];
     if ((c = this.index.get(g).export(a, g, b, e = 1)) && c.then) {
-      const k = this;
+      const h = this;
       return c.then(function() {
-        return k.export(a, g, b + 1);
+        return h.export(a, g, b + 1);
       });
     }
     return this.export(a, g, b + 1);
@@ -1729,7 +1739,7 @@ v.export = function(a, c, b = 0, e = 0) {
   }
   return ya.call(this, a, c, d, f, b, e);
 };
-v.import = function(a, c) {
+t.import = function(a, c) {
   var b = a.split(".");
   "json" === b[b.length - 1] && b.pop();
   const e = 2 < b.length ? b[0] : "";
@@ -1879,21 +1889,21 @@ N.prototype.add = function(a, c, b, e) {
     }
     c = this.encoder.encode(c);
     if (e = c.length) {
-      const l = B(), n = B(), m = this.depth, q = this.resolution;
-      for (let p = 0; p < e; p++) {
-        let r = c[this.rtl ? e - 1 - p : p];
-        var d = r.length;
-        if (d && (m || !n[r])) {
-          var f = this.score ? this.score(c, r, p, null, 0) : fb(q, e, p), g = "";
+      const l = A(), m = A(), n = this.depth, p = this.resolution;
+      for (let r = 0; r < e; r++) {
+        let q = c[this.rtl ? e - 1 - r : r];
+        var d = q.length;
+        if (d && (n || !m[q])) {
+          var f = this.score ? this.score(c, q, r, null, 0) : fb(p, e, r), g = "";
           switch(this.tokenize) {
             case "full":
               if (2 < d) {
-                for (let u = 0, t; u < d; u++) {
+                for (let u = 0, v; u < d; u++) {
                   for (f = d; f > u; f--) {
-                    g = r.substring(u, f);
-                    t = this.rtl ? d - 1 - u : u;
-                    var k = this.score ? this.score(c, r, p, g, t) : fb(q, e, p, d, t);
-                    gb(this, n, g, k, a, b);
+                    g = q.substring(u, f);
+                    v = this.rtl ? d - 1 - u : u;
+                    var h = this.score ? this.score(c, q, r, g, v) : fb(p, e, r, d, v);
+                    gb(this, m, g, h, a, b);
                   }
                 }
                 break;
@@ -1901,27 +1911,27 @@ N.prototype.add = function(a, c, b, e) {
             case "bidirectional":
             case "reverse":
               if (1 < d) {
-                for (k = d - 1; 0 < k; k--) {
-                  g = r[this.rtl ? d - 1 - k : k] + g;
-                  var h = this.score ? this.score(c, r, p, g, k) : fb(q, e, p, d, k);
-                  gb(this, n, g, h, a, b);
+                for (h = d - 1; 0 < h; h--) {
+                  g = q[this.rtl ? d - 1 - h : h] + g;
+                  var k = this.score ? this.score(c, q, r, g, h) : fb(p, e, r, d, h);
+                  gb(this, m, g, k, a, b);
                 }
                 g = "";
               }
             case "forward":
               if (1 < d) {
-                for (k = 0; k < d; k++) {
-                  g += r[this.rtl ? d - 1 - k : k], gb(this, n, g, f, a, b);
+                for (h = 0; h < d; h++) {
+                  g += q[this.rtl ? d - 1 - h : h], gb(this, m, g, f, a, b);
                 }
                 break;
               }
             default:
-              if (gb(this, n, r, f, a, b), m && 1 < e && p < e - 1) {
-                for (d = B(), g = this.U, f = r, k = Math.min(m + 1, this.rtl ? p + 1 : e - p), d[f] = 1, h = 1; h < k; h++) {
-                  if ((r = c[this.rtl ? e - 1 - p - h : p + h]) && !d[r]) {
-                    d[r] = 1;
-                    const u = this.score ? this.score(c, f, p, r, h - 1) : fb(g + (e / 2 > g ? 0 : 1), e, p, k - 1, h - 1), t = this.bidirectional && r > f;
-                    gb(this, l, t ? f : r, u, a, b, t ? r : f);
+              if (gb(this, m, q, f, a, b), n && 1 < e && r < e - 1) {
+                for (d = A(), g = this.U, f = q, h = Math.min(n + 1, this.rtl ? r + 1 : e - r), d[f] = 1, k = 1; k < h; k++) {
+                  if ((q = c[this.rtl ? e - 1 - r - k : r + k]) && !d[q]) {
+                    d[q] = 1;
+                    const u = this.score ? this.score(c, f, r, q, k - 1) : fb(g + (e / 2 > g ? 0 : 1), e, r, h - 1, k - 1), v = this.bidirectional && q > f;
+                    gb(this, l, v ? f : q, u, a, b, v ? q : f);
                   }
                 }
               }
@@ -1937,20 +1947,20 @@ N.prototype.add = function(a, c, b, e) {
   return this;
 };
 function gb(a, c, b, e, d, f, g) {
-  let k = g ? a.ctx : a.map, h;
-  if (!c[b] || g && !(h = c[b])[g]) {
-    if (g ? (c = h || (c[b] = B()), c[g] = 1, (h = k.get(g)) ? k = h : k.set(g, k = new Map())) : c[b] = 1, (h = k.get(b)) ? k = h : k.set(b, k = h = []), k = k[e] || (k[e] = []), !f || !k.includes(d)) {
-      if (k.length === 2 ** 31 - 1) {
-        c = new R(k);
+  let h = g ? a.ctx : a.map, k;
+  if (!c[b] || g && !(k = c[b])[g]) {
+    if (g ? (c = k || (c[b] = A()), c[g] = 1, (k = h.get(g)) ? h = k : h.set(g, h = new Map())) : c[b] = 1, (k = h.get(b)) ? h = k : h.set(b, h = k = []), h = h[e] || (h[e] = []), !f || !h.includes(d)) {
+      if (h.length === 2 ** 31 - 1) {
+        c = new R(h);
         if (a.fastupdate) {
           for (let l of a.reg.values()) {
-            l.includes(k) && (l[l.indexOf(k)] = c);
+            l.includes(h) && (l[l.indexOf(h)] = c);
           }
         }
-        h[e] = k = c;
+        k[e] = h = c;
       }
-      k.push(d);
-      a.fastupdate && ((e = a.reg.get(d)) ? e.push(k) : a.reg.set(d, [k]));
+      h.push(d);
+      a.fastupdate && ((e = a.reg.get(d)) ? e.push(h) : a.reg.set(d, [h]));
     }
   }
 }
@@ -1959,69 +1969,69 @@ function fb(a, c, b, e, d) {
 }
 ;N.prototype.search = function(a, c, b) {
   b || (c || "object" !== typeof a ? "object" === typeof c && (b = c, c = 0) : (b = a, a = ""));
-  let e = [], d, f, g, k = 0, h, l, n, m, q;
-  b ? (a = b.query || a, c = b.limit || c, k = b.offset || 0, f = b.context, g = b.suggest, q = (h = !1 !== b.resolve) && b.enrich, n = b.boost, m = b.resolution, l = this.db && b.tag) : h = this.resolve;
-  let p = this.encoder.encode(a);
-  d = p.length;
-  c = c || (h ? 100 : 0);
+  let e = [], d, f, g, h = 0, k, l, m, n, p;
+  b ? (a = b.query || a, c = b.limit || c, h = b.offset || 0, f = b.context, g = b.suggest, p = (k = !1 !== b.resolve) && b.enrich, m = b.boost, n = b.resolution, l = this.db && b.tag) : k = this.resolve;
+  let r = this.encoder.encode(a);
+  d = r.length;
+  c = c || (k ? 100 : 0);
   if (1 === d) {
-    return hb.call(this, p[0], "", c, k, h, q, l);
+    return hb.call(this, r[0], "", c, h, k, p, l);
   }
   f = this.depth && !1 !== f;
   if (2 === d && f && !g) {
-    return hb.call(this, p[1], p[0], c, k, h, q, l);
+    return hb.call(this, r[1], r[0], c, h, k, p, l);
   }
-  let r = B(), u = 0, t;
-  f && (t = p[0], u = 1);
-  m || 0 === m || (m = t ? this.U : this.resolution);
+  let q = A(), u = 0, v;
+  f && (v = r[0], u = 1);
+  n || 0 === n || (n = v ? this.U : this.resolution);
   if (this.db) {
-    if (this.db.search && (a = this.db.search(this, p, c, k, g, h, q, l), !1 !== a)) {
+    if (this.db.search && (a = this.db.search(this, r, c, h, g, k, p, l), !1 !== a)) {
       return a;
     }
     const w = this;
     return async function() {
-      for (let y, E; u < d; u++) {
-        if ((E = p[u]) && !r[E]) {
-          r[E] = 1;
-          y = await ib(w, E, t, 0, 0, !1, !1);
-          if (y = jb(y, e, g, m)) {
-            e = y;
+      for (let x, F; u < d; u++) {
+        if ((F = r[u]) && !q[F]) {
+          q[F] = 1;
+          x = await ib(w, F, v, 0, 0, !1, !1);
+          if (x = jb(x, e, g, n)) {
+            e = x;
             break;
           }
-          t && (g && y && e.length || (t = E));
+          v && (g && x && e.length || (v = F));
         }
-        g && t && u === d - 1 && !e.length && (m = w.resolution, t = "", u = -1, r = B());
+        g && v && u === d - 1 && !e.length && (n = w.resolution, v = "", u = -1, q = A());
       }
-      return kb(e, m, c, k, g, n, h);
+      return kb(e, n, c, h, g, m, k);
     }();
   }
-  for (let w, y; u < d; u++) {
-    if ((y = p[u]) && !r[y]) {
-      r[y] = 1;
-      w = ib(this, y, t, 0, 0, !1, !1);
-      if (w = jb(w, e, g, m)) {
+  for (let w, x; u < d; u++) {
+    if ((x = r[u]) && !q[x]) {
+      q[x] = 1;
+      w = ib(this, x, v, 0, 0, !1, !1);
+      if (w = jb(w, e, g, n)) {
         e = w;
         break;
       }
-      t && (g && w && e.length || (t = y));
+      v && (g && w && e.length || (v = x));
     }
-    g && t && u === d - 1 && !e.length && (m = this.resolution, t = "", u = -1, r = B());
+    g && v && u === d - 1 && !e.length && (n = this.resolution, v = "", u = -1, q = A());
   }
-  return kb(e, m, c, k, g, n, h);
+  return kb(e, n, c, h, g, m, k);
 };
 function kb(a, c, b, e, d, f, g) {
-  let k = a.length, h = a;
-  if (1 < k) {
-    h = Fa(a, c, b, e, d, f, g);
-  } else if (1 === k) {
+  let h = a.length, k = a;
+  if (1 < h) {
+    k = Fa(a, c, b, e, d, f, g);
+  } else if (1 === h) {
     return g ? Ia.call(null, a[0], b, e) : new W(a[0]);
   }
-  return g ? h : new W(h);
+  return g ? k : new W(k);
 }
 function hb(a, c, b, e, d, f, g) {
   a = ib(this, a, c, b, e, d, f, g);
-  return this.db ? a.then(function(k) {
-    return d ? k || [] : new W(k);
+  return this.db ? a.then(function(h) {
+    return d ? h || [] : new W(h);
   }) : a && a.length ? d ? Ia.call(this, a, b, e) : new W(a) : d ? [] : new W();
 }
 function jb(a, c, b, e) {
@@ -2045,11 +2055,11 @@ function jb(a, c, b, e) {
     return d;
   }
 }
-function ib(a, c, b, e, d, f, g, k) {
-  let h;
-  b && (h = a.bidirectional && c > b) && (h = b, b = c, c = h);
+function ib(a, c, b, e, d, f, g, h) {
+  let k;
+  b && (k = a.bidirectional && c > b) && (k = b, b = c, c = k);
   if (a.db) {
-    return a.db.get(c, b, e, d, f, g, k);
+    return a.db.get(c, b, e, d, f, g, h);
   }
   a = b ? (a = a.ctx.get(b)) && a.get(c) : a.map.get(c);
   return a;
@@ -2059,13 +2069,13 @@ function ib(a, c, b, e, d, f, g, k) {
     return new N(a);
   }
   if (a) {
-    var b = F(a) ? a : a.preset;
+    var b = D(a) ? a : a.preset;
     b && (eb[b] || console.warn("Preset not found: " + b), a = Object.assign({}, eb[b], a));
   } else {
     a = {};
   }
   b = a.context;
-  const e = !0 === b ? {depth:1} : b || {}, d = F(a.encoder) ? bb[a.encoder] : a.encode || a.encoder || {};
+  const e = !0 === b ? {depth:1} : b || {}, d = D(a.encoder) ? bb[a.encoder] : a.encode || a.encoder || {};
   this.encoder = d.encode ? d : "object" === typeof d ? new ja(d) : {encode:d};
   this.resolution = a.resolution || 9;
   this.tokenize = b = (b = a.tokenize) && "default" !== b && "exact" !== b && b || "strict";
@@ -2090,16 +2100,16 @@ function ib(a, c, b, e, d, f, g, k) {
   this.commit_timer = null;
   this.priority = a.priority || 4;
 }
-v = N.prototype;
-v.mount = function(a) {
+t = N.prototype;
+t.mount = function(a) {
   this.commit_timer && (clearTimeout(this.commit_timer), this.commit_timer = null);
   return a.mount(this);
 };
-v.commit = function(a, c) {
+t.commit = function(a, c) {
   this.commit_timer && (clearTimeout(this.commit_timer), this.commit_timer = null);
   return this.db.commit(this, a, c);
 };
-v.destroy = function() {
+t.destroy = function() {
   this.commit_timer && (clearTimeout(this.commit_timer), this.commit_timer = null);
   return this.db.destroy();
 };
@@ -2109,7 +2119,7 @@ function db(a) {
     a.db.commit(a, void 0, void 0);
   }, 1));
 }
-v.clear = function() {
+t.clear = function() {
   this.map.clear();
   this.ctx.clear();
   this.reg.clear();
@@ -2117,17 +2127,17 @@ v.clear = function() {
   this.db && (this.commit_timer && clearTimeout(this.commit_timer), this.commit_timer = null, this.commit_task = [{clear:!0}]);
   return this;
 };
-v.append = function(a, c) {
+t.append = function(a, c) {
   return this.add(a, c, !0);
 };
-v.contain = function(a) {
+t.contain = function(a) {
   return this.db ? this.db.has(a) : this.reg.has(a);
 };
-v.update = function(a, c) {
+t.update = function(a, c) {
   const b = this, e = this.remove(a);
   return e && e.then ? e.then(() => b.add(a, c)) : this.add(a, c);
 };
-v.cleanup = function() {
+t.cleanup = function() {
   if (!this.fastupdate) {
     return console.info('Cleanup the index isn\'t required when not using "fastupdate".'), this;
   }
@@ -2135,8 +2145,8 @@ v.cleanup = function() {
   this.depth && cb(this.ctx);
   return this;
 };
-v.searchCache = Va;
-v.export = function(a, c, b = 0, e = 0) {
+t.searchCache = Va;
+t.export = function(a, c, b = 0, e = 0) {
   let d, f;
   switch(e) {
     case 0:
@@ -2160,7 +2170,7 @@ v.export = function(a, c, b = 0, e = 0) {
   }
   return ya.call(this, a, c, d, f, b, e);
 };
-v.import = function(a, c) {
+t.import = function(a, c) {
   if (c) {
     switch("string" === typeof c && (c = JSON.parse(c)), a = a.split("."), "json" === a[a.length - 1] && a.pop(), 3 === a.length && a.shift(), a = 1 < a.length ? a[1] : a[0], a) {
       case "reg":
@@ -2175,7 +2185,7 @@ v.import = function(a, c) {
     }
   }
 };
-v.serialize = function(a = !0) {
+t.serialize = function(a = !0) {
   let c = "", b = "", e = "";
   if (this.reg.size) {
     let f;
@@ -2187,17 +2197,17 @@ v.serialize = function(a = !0) {
     b = "index.map=new Map([" + b + "]);";
     for (const g of this.ctx.entries()) {
       d = g[0];
-      let k = za(g[1], f);
-      k = "new Map([" + k + "])";
-      k = '["' + d + '",' + k + "]";
-      e += (e ? "," : "") + k;
+      let h = za(g[1], f);
+      h = "new Map([" + h + "])";
+      h = '["' + d + '",' + h + "]";
+      e += (e ? "," : "") + h;
     }
     e = "index.ctx=new Map([" + e + "]);";
   }
   return a ? "function inject(index){" + c + b + e + "}" : c + b + e;
 };
 la(N.prototype);
-const lb = "undefined" !== typeof window && (window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB), mb = ["map", "ctx", "tag", "reg", "cfg"], Y = B();
+const lb = "undefined" !== typeof window && (window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB), mb = ["map", "ctx", "tag", "reg", "cfg"], Y = A();
 function nb(a, c = {}) {
   if (!this) {
     return new nb(a, c);
@@ -2211,15 +2221,15 @@ function nb(a, c = {}) {
   this.db = null;
   this.h = {};
 }
-v = nb.prototype;
-v.mount = function(a) {
+t = nb.prototype;
+t.mount = function(a) {
   if (!a.encoder) {
     return a.mount(this);
   }
   a.db = this;
   return this.open();
 };
-v.open = function() {
+t.open = function() {
   if (this.db) {
     return this.db;
   }
@@ -2244,15 +2254,15 @@ v.open = function() {
     };
   });
 };
-v.close = function() {
+t.close = function() {
   this.db && this.db.close();
   this.db = null;
 };
-v.destroy = function() {
+t.destroy = function() {
   const a = lb.deleteDatabase(this.id);
   return Z(a);
 };
-v.clear = function() {
+t.clear = function() {
   const a = [];
   for (let b = 0, e; b < mb.length; b++) {
     e = mb[b];
@@ -2266,40 +2276,40 @@ v.clear = function() {
   }
   return Z(c);
 };
-v.get = function(a, c, b = 0, e = 0, d = !0, f = !1) {
+t.get = function(a, c, b = 0, e = 0, d = !0, f = !1) {
   a = this.db.transaction((c ? "ctx" : "map") + (this.field ? ":" + this.field : ""), "readonly").objectStore((c ? "ctx" : "map") + (this.field ? ":" + this.field : "")).get(c ? c + ":" + a : a);
   const g = this;
-  return Z(a).then(function(k) {
-    let h = [];
-    if (!k || !k.length) {
-      return h;
+  return Z(a).then(function(h) {
+    let k = [];
+    if (!h || !h.length) {
+      return k;
     }
     if (d) {
-      if (!b && !e && 1 === k.length) {
-        return k[0];
+      if (!b && !e && 1 === h.length) {
+        return h[0];
       }
-      for (let l = 0, n; l < k.length; l++) {
-        if ((n = k[l]) && n.length) {
-          if (e >= n.length) {
-            e -= n.length;
+      for (let l = 0, m; l < h.length; l++) {
+        if ((m = h[l]) && m.length) {
+          if (e >= m.length) {
+            e -= m.length;
             continue;
           }
-          const m = b ? e + Math.min(n.length - e, b) : n.length;
-          for (let q = e; q < m; q++) {
-            h.push(n[q]);
+          const n = b ? e + Math.min(m.length - e, b) : m.length;
+          for (let p = e; p < n; p++) {
+            k.push(m[p]);
           }
           e = 0;
-          if (h.length === b) {
+          if (k.length === b) {
             break;
           }
         }
       }
-      return f ? g.enrich(h) : h;
+      return f ? g.enrich(k) : k;
     }
-    return k;
+    return h;
   });
 };
-v.tag = function(a, c = 0, b = 0, e = !1) {
+t.tag = function(a, c = 0, b = 0, e = !1) {
   a = this.db.transaction("tag" + (this.field ? ":" + this.field : ""), "readonly").objectStore("tag" + (this.field ? ":" + this.field : "")).get(a);
   const d = this;
   return Z(a).then(function(f) {
@@ -2313,7 +2323,7 @@ v.tag = function(a, c = 0, b = 0, e = !1) {
     return e ? d.enrich(f) : f;
   });
 };
-v.enrich = function(a) {
+t.enrich = function(a) {
   "object" !== typeof a && (a = [a]);
   const c = this.db.transaction("reg", "readonly").objectStore("reg"), b = [];
   for (let e = 0; e < a.length; e++) {
@@ -2326,16 +2336,16 @@ v.enrich = function(a) {
     return e;
   });
 };
-v.has = function(a) {
+t.has = function(a) {
   a = this.db.transaction("reg", "readonly").objectStore("reg").getKey(a);
   return Z(a).then(function(c) {
     return !!c;
   });
 };
-v.search = null;
-v.info = function() {
+t.search = null;
+t.info = function() {
 };
-v.transaction = function(a, c, b) {
+t.transaction = function(a, c, b) {
   a += "reg" !== a ? this.field ? ":" + this.field : "" : "";
   let e = this.h[a + ":" + c];
   if (e) {
@@ -2350,7 +2360,7 @@ v.transaction = function(a, c, b) {
     return f;
   });
 };
-v.commit = async function(a, c, b) {
+t.commit = async function(a, c, b) {
   if (c) {
     await this.clear(), a.commit_task = [];
   } else {
@@ -2371,54 +2381,54 @@ v.commit = async function(a, c, b) {
     for (const d of a.map) {
       const f = d[0], g = d[1];
       g.length && (c ? e.put(g, f) : e.get(f).onsuccess = function() {
-        let k = this.result;
-        var h;
-        if (k && k.length) {
-          const l = Math.max(k.length, g.length);
-          for (let n = 0, m, q; n < l; n++) {
-            if ((q = g[n]) && q.length) {
-              if ((m = k[n]) && m.length) {
-                for (h = 0; h < q.length; h++) {
-                  m.push(q[h]);
+        let h = this.result;
+        var k;
+        if (h && h.length) {
+          const l = Math.max(h.length, g.length);
+          for (let m = 0, n, p; m < l; m++) {
+            if ((p = g[m]) && p.length) {
+              if ((n = h[m]) && n.length) {
+                for (k = 0; k < p.length; k++) {
+                  n.push(p[k]);
                 }
               } else {
-                k[n] = q;
+                h[m] = p;
               }
-              h = 1;
+              k = 1;
             }
           }
         } else {
-          k = g, h = 1;
+          h = g, k = 1;
         }
-        h && e.put(k, f);
+        k && e.put(h, f);
       });
     }
   }), await this.transaction("ctx", "readwrite", function(e) {
     for (const d of a.ctx) {
       const f = d[0], g = d[1];
-      for (const k of g) {
-        const h = k[0], l = k[1];
-        l.length && (c ? e.put(l, f + ":" + h) : e.get(f + ":" + h).onsuccess = function() {
-          let n = this.result;
-          var m;
-          if (n && n.length) {
-            const q = Math.max(n.length, l.length);
-            for (let p = 0, r, u; p < q; p++) {
-              if ((u = l[p]) && u.length) {
-                if ((r = n[p]) && r.length) {
-                  for (m = 0; m < u.length; m++) {
-                    r.push(u[m]);
+      for (const h of g) {
+        const k = h[0], l = h[1];
+        l.length && (c ? e.put(l, f + ":" + k) : e.get(f + ":" + k).onsuccess = function() {
+          let m = this.result;
+          var n;
+          if (m && m.length) {
+            const p = Math.max(m.length, l.length);
+            for (let r = 0, q, u; r < p; r++) {
+              if ((u = l[r]) && u.length) {
+                if ((q = m[r]) && q.length) {
+                  for (n = 0; n < u.length; n++) {
+                    q.push(u[n]);
                   }
                 } else {
-                  n[p] = u;
+                  m[r] = u;
                 }
-                m = 1;
+                n = 1;
               }
             }
           } else {
-            n = l, m = 1;
+            m = l, n = 1;
           }
-          m && e.put(n, f + ":" + h);
+          n && e.put(m, f + ":" + k);
         });
       }
     }
@@ -2435,9 +2445,9 @@ v.commit = async function(a, c, b) {
     for (const d of a.tag) {
       const f = d[0], g = d[1];
       g.length && (e.get(f).onsuccess = function() {
-        let k = this.result;
-        k = k && k.length ? k.concat(g) : g;
-        e.put(k, f);
+        let h = this.result;
+        h = h && h.length ? h.concat(g) : g;
+        e.put(h, f);
       });
     }
   }), a.map.clear(), a.ctx.clear(), a.tag && a.tag.clear(), a.store && a.store.clear(), a.document || a.reg.clear());
@@ -2445,19 +2455,19 @@ v.commit = async function(a, c, b) {
 function pb(a, c, b) {
   const e = a.value;
   let d, f = 0;
-  for (let g = 0, k; g < e.length; g++) {
-    if (k = b ? e : e[g]) {
-      for (let h = 0, l, n; h < c.length; h++) {
-        if (n = c[h], l = k.indexOf(n), 0 <= l) {
-          if (d = 1, 1 < k.length) {
-            k.splice(l, 1);
+  for (let g = 0, h; g < e.length; g++) {
+    if (h = b ? e : e[g]) {
+      for (let k = 0, l, m; k < c.length; k++) {
+        if (m = c[k], l = h.indexOf(m), 0 <= l) {
+          if (d = 1, 1 < h.length) {
+            h.splice(l, 1);
           } else {
             e[g] = [];
             break;
           }
         }
       }
-      f += k.length;
+      f += h.length;
     }
     if (b) {
       break;
@@ -2466,7 +2476,7 @@ function pb(a, c, b) {
   f ? d && a.update(e) : a.delete();
   a.continue();
 }
-v.remove = function(a) {
+t.remove = function(a) {
   "object" !== typeof a && (a = [a]);
   return Promise.all([this.transaction("map", "readwrite", function(c) {
     c.openCursor().onsuccess = function() {
diff --git a/dist/flexsearch.bundle.module.min.js b/dist/flexsearch.bundle.module.min.js
index a4bc7e9..2d51e5d 100644
--- a/dist/flexsearch.bundle.module.min.js
+++ b/dist/flexsearch.bundle.module.min.js
@@ -1,95 +1,95 @@
 /**!
- * FlexSearch.js v0.8.154 (Bundle/Module)
+ * FlexSearch.js v0.8.155 (Bundle/Module)
  * Author and Copyright: Thomas Wilkerling
  * Licence: Apache-2.0
  * Hosted by Nextapps GmbH
  * https://github.com/nextapps-de/flexsearch
  */
-var u;function A(a,b,c){const e=typeof c,d=typeof a;if("undefined"!==e){if("undefined"!==d){if(c){if("function"===d&&e===d)return function(k){return a(c(k))};b=a.constructor;if(b===c.constructor){if(b===Array)return c.concat(a);if(b===Map){var f=new Map(c);for(var g of a)f.set(g[0],g[1]);return f}if(b===Set){g=new Set(c);for(f of a.values())g.add(f);return g}}}return a}return c}return"undefined"===d?b:a}function B(){return Object.create(null)}function F(a){return"string"===typeof a}
-function H(a){return"object"===typeof a}function aa(a){const b=[];for(const c of a.keys())b.push(c);return b}function I(a,b){if(F(b))a=a[b];else for(let c=0;a&&c<b.length;c++)a=a[b[c]];return a}function ba(a){let b=0;for(let c=0,e;c<a.length;c++)(e=a[c])&&b<e.length&&(b=e.length);return b};const ca=/[^\p{L}\p{N}]+/u,da=/(\d{3})/g,ea=/(\D)(\d{3})/g,fa=/(\d{3})(\D)/g,ha=/[\u0300-\u036f]/g;function ia(a={}){if(!this||this.constructor!==ia)return new ia(...arguments);if(arguments.length)for(a=0;a<arguments.length;a++)this.assign(arguments[a]);else this.assign(a)}u=ia.prototype;
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+(v=x))}g&&v&&u===d-1&&!e.length&&(n=this.resolution,v="",u=-1,q=A())}return kb(e,n,b,h,g,m,k)};function kb(a,b,c,e,d,f,g){let h=a.length,k=a;if(1<h)k=Fa(a,b,c,e,d,f,g);else if(1===h)return g?Ia.call(null,a[0],c,e):new W(a[0]);return g?k:new W(k)}function hb(a,b,c,e,d,f,g){a=ib(this,a,b,c,e,d,f,g);return this.db?a.then(function(h){return d?h||[]:new W(h)}):a&&a.length?d?Ia.call(this,a,c,e):new W(a):d?[]:new W}
+function jb(a,b,c,e){let d=[];if(a&&a.length){if(a.length<=e){b.push(a);return}for(let f=0,g;f<e;f++)if(g=a[f])d[f]=g;if(d.length){b.push(d);return}}if(!c)return d}function ib(a,b,c,e,d,f,g,h){let k;c&&(k=a.bidirectional&&b>c)&&(k=c,c=b,b=k);if(a.db)return a.db.get(b,c,e,d,f,g,h);a=c?(a=a.ctx.get(c))&&a.get(b):a.map.get(b);return a};function M(a,b){if(!this||this.constructor!==M)return new M(a);if(a){var c=D(a)?a:a.preset;c&&(a=Object.assign({},eb[c],a))}else a={};c=a.context;const e=!0===c?{depth:1}:c||{},d=D(a.encoder)?bb[a.encoder]:a.encode||a.encoder||{};this.encoder=d.encode?d:"object"===typeof d?new ia(d):{encode:d};this.resolution=a.resolution||9;this.tokenize=c=(c=a.tokenize)&&"default"!==c&&"exact"!==c&&c||"strict";this.depth="strict"===c&&e.depth||0;this.bidirectional=!1!==e.bidirectional;this.fastupdate=!!a.fastupdate;
+this.score=a.score||null;(c=a.keystore||0)&&(this.keystore=c);this.map=c?new S(c):new Map;this.ctx=c?new S(c):new Map;this.reg=b||(this.fastupdate?c?new S(c):new Map:c?new T(c):new Set);this.U=e.resolution||3;this.rtl=d.rtl||a.rtl||!1;this.cache=(c=a.cache||null)&&new X(c);this.resolve=!1!==a.resolve;if(c=a.db)this.db=this.mount(c);this.T=!1!==a.commit;this.commit_task=[];this.commit_timer=null;this.priority=a.priority||4}t=M.prototype;
+t.mount=function(a){this.commit_timer&&(clearTimeout(this.commit_timer),this.commit_timer=null);return a.mount(this)};t.commit=function(a,b){this.commit_timer&&(clearTimeout(this.commit_timer),this.commit_timer=null);return this.db.commit(this,a,b)};t.destroy=function(){this.commit_timer&&(clearTimeout(this.commit_timer),this.commit_timer=null);return this.db.destroy()};function db(a){a.commit_timer||(a.commit_timer=setTimeout(function(){a.commit_timer=null;a.db.commit(a,void 0,void 0)},1))}
+t.clear=function(){this.map.clear();this.ctx.clear();this.reg.clear();this.cache&&this.cache.clear();this.db&&(this.commit_timer&&clearTimeout(this.commit_timer),this.commit_timer=null,this.commit_task=[{clear:!0}]);return this};t.append=function(a,b){return this.add(a,b,!0)};t.contain=function(a){return this.db?this.db.has(a):this.reg.has(a)};t.update=function(a,b){const c=this,e=this.remove(a);return e&&e.then?e.then(()=>c.add(a,b)):this.add(a,b)};
+t.cleanup=function(){if(!this.fastupdate)return this;cb(this.map);this.depth&&cb(this.ctx);return this};t.searchCache=Va;t.export=function(a,b,c=0,e=0){let d,f;switch(e){case 0:d="reg";f=wa(this.reg);break;case 1:d="cfg";f=null;break;case 2:d="map";f=sa(this.map,this.reg.size);break;case 3:d="ctx";f=ua(this.ctx,this.reg.size);break;default:return}return ya.call(this,a,b,d,f,c,e)};
+t.import=function(a,b){if(b)switch("string"===typeof b&&(b=JSON.parse(b)),a=a.split("."),"json"===a[a.length-1]&&a.pop(),3===a.length&&a.shift(),a=1<a.length?a[1]:a[0],a){case "reg":this.fastupdate=!1;this.reg=xa(b,this.reg);break;case "map":this.map=ta(b,this.map);break;case "ctx":this.ctx=va(b,this.ctx)}};
+t.serialize=function(a=!0){let b="",c="",e="";if(this.reg.size){let f;for(var d of this.reg.keys())f||(f=typeof d),b+=(b?",":"")+("string"===f?'"'+d+'"':d);b="index.reg=new Set(["+b+"]);";c=za(this.map,f);c="index.map=new Map(["+c+"]);";for(const g of this.ctx.entries()){d=g[0];let h=za(g[1],f);h="new Map(["+h+"])";h='["'+d+'",'+h+"]";e+=(e?",":"")+h}e="index.ctx=new Map(["+e+"]);"}return a?"function inject(index){"+b+c+e+"}":b+c+e};la(M.prototype);const lb="undefined"!==typeof window&&(window.indexedDB||window.mozIndexedDB||window.webkitIndexedDB||window.msIndexedDB),mb=["map","ctx","tag","reg","cfg"],Y=A();
+function ob(a,b={}){if(!this)return new ob(a,b);"object"===typeof a&&(b=a,a=a.name);a||console.info("Default storage space was used, because a name was not passed.");this.id="flexsearch"+(a?":"+a.toLowerCase().replace(/[^a-z0-9_\-]/g,""):"");this.field=b.field?b.field.toLowerCase().replace(/[^a-z0-9_\-]/g,""):"";this.type=b.type;this.fastupdate=this.support_tag_search=!1;this.db=null;this.h={}}t=ob.prototype;t.mount=function(a){if(!a.encoder)return a.mount(this);a.db=this;return this.open()};
+t.open=function(){if(this.db)return this.db;let a=this;navigator.storage&&navigator.storage.persist();Y[a.id]||(Y[a.id]=[]);Y[a.id].push(a.field);const b=lb.open(a.id,1);b.onupgradeneeded=function(){const c=a.db=this.result;for(let e=0,d;e<mb.length;e++){d=mb[e];for(let f=0,g;f<Y[a.id].length;f++)g=Y[a.id][f],c.objectStoreNames.contains(d+("reg"!==d?g?":"+g:"":""))||c.createObjectStore(d+("reg"!==d?g?":"+g:"":""))}};return a.db=Z(b,function(c){a.db=c;a.db.onversionchange=function(){a.close()}})};
+t.close=function(){this.db&&this.db.close();this.db=null};t.destroy=function(){const a=lb.deleteDatabase(this.id);return Z(a)};t.clear=function(){const a=[];for(let c=0,e;c<mb.length;c++){e=mb[c];for(let d=0,f;d<Y[this.id].length;d++)f=Y[this.id][d],a.push(e+("reg"!==e?f?":"+f:"":""))}const b=this.db.transaction(a,"readwrite");for(let c=0;c<a.length;c++)b.objectStore(a[c]).clear();return Z(b)};
+t.get=function(a,b,c=0,e=0,d=!0,f=!1){a=this.db.transaction((b?"ctx":"map")+(this.field?":"+this.field:""),"readonly").objectStore((b?"ctx":"map")+(this.field?":"+this.field:"")).get(b?b+":"+a:a);const g=this;return Z(a).then(function(h){let k=[];if(!h||!h.length)return k;if(d){if(!c&&!e&&1===h.length)return h[0];for(let l=0,m;l<h.length;l++)if((m=h[l])&&m.length){if(e>=m.length){e-=m.length;continue}const n=c?e+Math.min(m.length-e,c):m.length;for(let p=e;p<n;p++)k.push(m[p]);e=0;if(k.length===c)break}return f?
+g.enrich(k):k}return h})};t.tag=function(a,b=0,c=0,e=!1){a=this.db.transaction("tag"+(this.field?":"+this.field:""),"readonly").objectStore("tag"+(this.field?":"+this.field:"")).get(a);const d=this;return Z(a).then(function(f){if(!f||!f.length||c>=f.length)return[];if(!b&&!c)return f;f=f.slice(c,c+b);return e?d.enrich(f):f})};
+t.enrich=function(a){"object"!==typeof a&&(a=[a]);const b=this.db.transaction("reg","readonly").objectStore("reg"),c=[];for(let e=0;e<a.length;e++)c[e]=Z(b.get(a[e]));return Promise.all(c).then(function(e){for(let d=0;d<e.length;d++)e[d]={id:a[d],doc:e[d]?JSON.parse(e[d]):null};return e})};t.has=function(a){a=this.db.transaction("reg","readonly").objectStore("reg").getKey(a);return Z(a).then(function(b){return!!b})};t.search=null;t.info=function(){};
+t.transaction=function(a,b,c){a+="reg"!==a?this.field?":"+this.field:"":"";let e=this.h[a+":"+b];if(e)return c.call(this,e);let d=this.db.transaction(a,b);this.h[a+":"+b]=e=d.objectStore(a);const f=c.call(this,e);this.h[a+":"+b]=null;return Z(d).finally(function(){d=e=null;return f})};
+t.commit=async function(a,b,c){if(b)await this.clear(),a.commit_task=[];else{let e=a.commit_task;a.commit_task=[];for(let d=0,f;d<e.length;d++)if(f=e[d],f.clear){await this.clear();b=!0;break}else e[d]=f.del;b||(c||(e=e.concat(aa(a.reg))),e.length&&await this.remove(e))}a.reg.size&&(await this.transaction("map","readwrite",function(e){for(const d of a.map){const f=d[0],g=d[1];g.length&&(b?e.put(g,f):e.get(f).onsuccess=function(){let h=this.result;var k;if(h&&h.length){const l=Math.max(h.length,g.length);
+for(let m=0,n,p;m<l;m++)if((p=g[m])&&p.length){if((n=h[m])&&n.length)for(k=0;k<p.length;k++)n.push(p[k]);else h[m]=p;k=1}}else h=g,k=1;k&&e.put(h,f)})}}),await this.transaction("ctx","readwrite",function(e){for(const d of a.ctx){const f=d[0],g=d[1];for(const h of g){const k=h[0],l=h[1];l.length&&(b?e.put(l,f+":"+k):e.get(f+":"+k).onsuccess=function(){let m=this.result;var n;if(m&&m.length){const p=Math.max(m.length,l.length);for(let r=0,q,u;r<p;r++)if((u=l[r])&&u.length){if((q=m[r])&&q.length)for(n=
+0;n<u.length;n++)q.push(u[n]);else m[r]=u;n=1}}else m=l,n=1;n&&e.put(m,f+":"+k)})}}}),a.store?await this.transaction("reg","readwrite",function(e){for(const d of a.store){const f=d[0],g=d[1];e.put("object"===typeof g?JSON.stringify(g):1,f)}}):a.bypass||await this.transaction("reg","readwrite",function(e){for(const d of a.reg.keys())e.put(1,d)}),a.tag&&await this.transaction("tag","readwrite",function(e){for(const d of a.tag){const f=d[0],g=d[1];g.length&&(e.get(f).onsuccess=function(){let h=this.result;
+h=h&&h.length?h.concat(g):g;e.put(h,f)})}}),a.map.clear(),a.ctx.clear(),a.tag&&a.tag.clear(),a.store&&a.store.clear(),a.document||a.reg.clear())};function pb(a,b,c){const e=a.value;let d,f=0;for(let g=0,h;g<e.length;g++){if(h=c?e:e[g]){for(let k=0,l,m;k<b.length;k++)if(m=b[k],l=h.indexOf(m),0<=l)if(d=1,1<h.length)h.splice(l,1);else{e[g]=[];break}f+=h.length}if(c)break}f?d&&a.update(e):a.delete();a.continue()}
+t.remove=function(a){"object"!==typeof a&&(a=[a]);return Promise.all([this.transaction("map","readwrite",function(b){b.openCursor().onsuccess=function(){const c=this.result;c&&pb(c,a)}}),this.transaction("ctx","readwrite",function(b){b.openCursor().onsuccess=function(){const c=this.result;c&&pb(c,a)}}),this.transaction("tag","readwrite",function(b){b.openCursor().onsuccess=function(){const c=this.result;c&&pb(c,a,!0)}}),this.transaction("reg","readwrite",function(b){for(let c=0;c<a.length;c++)b.delete(a[c])})])};
 function Z(a,b){return new Promise((c,e)=>{a.onsuccess=a.oncomplete=function(){b&&b(this.result);b=null;c(this.result)};a.onerror=a.onblocked=e;a=null})};export default {Index:M,Charset:bb,Encoder:ia,Document:U,Worker:P,Resolver:W,IndexedDB:ob,Language:{}};
 export const Index=M;export const Charset=bb;export const Encoder=ia;export const Document=U;export const Worker=P;export const Resolver=W;export const IndexedDB=ob;export const Language={};
\ No newline at end of file
diff --git a/dist/flexsearch.compact.debug.js b/dist/flexsearch.compact.debug.js
index 4a23caf..1e0c607 100644
--- a/dist/flexsearch.compact.debug.js
+++ b/dist/flexsearch.compact.debug.js
@@ -1,13 +1,13 @@
 /**!
- * FlexSearch.js v0.8.154 (Bundle/Debug)
+ * FlexSearch.js v0.8.155 (Bundle/Debug)
  * Author and Copyright: Thomas Wilkerling
  * Licence: Apache-2.0
  * Hosted by Nextapps GmbH
  * https://github.com/nextapps-de/flexsearch
  */
 (function(self){'use strict';
-var w;
-function B(a, c, b) {
+var x;
+function A(a, c, b) {
   const e = typeof b, d = typeof a;
   if ("undefined" !== e) {
     if ("undefined" !== d) {
@@ -44,17 +44,17 @@ function B(a, c, b) {
   }
   return "undefined" === d ? c : a;
 }
-function C() {
+function B() {
   return Object.create(null);
 }
-function D(a) {
+function C(a) {
   return "string" === typeof a;
 }
-function H(a) {
+function G(a) {
   return "object" === typeof a;
 }
-function I(a, c) {
-  if (D(c)) {
+function H(a, c) {
+  if (C(c)) {
     a = a[c];
   } else {
     for (let b = 0; a && b < c.length; b++) {
@@ -71,9 +71,9 @@ function aa(a) {
   return c;
 }
 ;const ba = /[^\p{L}\p{N}]+/u, ca = /(\d{3})/g, da = /(\D)(\d{3})/g, ea = /(\d{3})(\D)/g, fa = /[\u0300-\u036f]/g;
-function J(a = {}) {
-  if (!this || this.constructor !== J) {
-    return new J(...arguments);
+function I(a = {}) {
+  if (!this || this.constructor !== I) {
+    return new I(...arguments);
   }
   if (arguments.length) {
     for (a = 0; a < arguments.length; a++) {
@@ -83,9 +83,9 @@ function J(a = {}) {
     this.assign(a);
   }
 }
-w = J.prototype;
-w.assign = function(a) {
-  this.normalize = B(a.normalize, !0, this.normalize);
+x = I.prototype;
+x.assign = function(a) {
+  this.normalize = A(a.normalize, !0, this.normalize);
   let c = a.include, b = c || a.exclude || a.split, e;
   if (b || "" === b) {
     if ("object" === typeof b && b.constructor !== RegExp) {
@@ -108,33 +108,33 @@ w.assign = function(a) {
     } else {
       this.split = b, e = !1 === b || 2 > "a1a".split(b).length;
     }
-    this.numeric = B(a.numeric, e);
+    this.numeric = A(a.numeric, e);
   } else {
     try {
-      this.split = B(this.split, ba);
+      this.split = A(this.split, ba);
     } catch (d) {
       console.warn("This platform does not support unicode regex. It falls back to using simple whitespace splitter instead: /s+/."), this.split = /\s+/;
     }
-    this.numeric = B(a.numeric, B(this.numeric, !0));
+    this.numeric = A(a.numeric, A(this.numeric, !0));
   }
-  this.prepare = B(a.prepare, null, this.prepare);
-  this.finalize = B(a.finalize, null, this.finalize);
+  this.prepare = A(a.prepare, null, this.prepare);
+  this.finalize = A(a.finalize, null, this.finalize);
   b = a.filter;
-  this.filter = "function" === typeof b ? b : B(b && new Set(b), null, this.filter);
-  this.dedupe = B(a.dedupe, !0, this.dedupe);
-  this.matcher = B((b = a.matcher) && new Map(b), null, this.matcher);
-  this.mapper = B((b = a.mapper) && new Map(b), null, this.mapper);
-  this.stemmer = B((b = a.stemmer) && new Map(b), null, this.stemmer);
-  this.replacer = B(a.replacer, null, this.replacer);
-  this.minlength = B(a.minlength, 1, this.minlength);
-  this.maxlength = B(a.maxlength, 1024, this.maxlength);
-  this.rtl = B(a.rtl, !1, this.rtl);
-  if (this.cache = b = B(a.cache, !0, this.cache)) {
+  this.filter = "function" === typeof b ? b : A(b && new Set(b), null, this.filter);
+  this.dedupe = A(a.dedupe, !0, this.dedupe);
+  this.matcher = A((b = a.matcher) && new Map(b), null, this.matcher);
+  this.mapper = A((b = a.mapper) && new Map(b), null, this.mapper);
+  this.stemmer = A((b = a.stemmer) && new Map(b), null, this.stemmer);
+  this.replacer = A(a.replacer, null, this.replacer);
+  this.minlength = A(a.minlength, 1, this.minlength);
+  this.maxlength = A(a.maxlength, 1024, this.maxlength);
+  this.rtl = A(a.rtl, !1, this.rtl);
+  if (this.cache = b = A(a.cache, !0, this.cache)) {
     this.H = null, this.R = "number" === typeof b ? b : 2e5, this.F = new Map(), this.G = new Map(), this.L = this.K = 128;
   }
   this.h = "";
   this.M = null;
-  this.D = "";
+  this.C = "";
   this.N = null;
   if (this.matcher) {
     for (const d of this.matcher.keys()) {
@@ -143,25 +143,25 @@ w.assign = function(a) {
   }
   if (this.stemmer) {
     for (const d of this.stemmer.keys()) {
-      this.D += (this.D ? "|" : "") + d;
+      this.C += (this.C ? "|" : "") + d;
     }
   }
   return this;
 };
-w.addStemmer = function(a, c) {
+x.addStemmer = function(a, c) {
   this.stemmer || (this.stemmer = new Map());
   this.stemmer.set(a, c);
-  this.D += (this.D ? "|" : "") + a;
+  this.C += (this.C ? "|" : "") + a;
   this.N = null;
-  this.cache && K(this);
+  this.cache && J(this);
   return this;
 };
-w.addFilter = function(a) {
+x.addFilter = function(a) {
   "function" === typeof a ? this.filter = a : (this.filter || (this.filter = new Set()), this.filter.add(a));
-  this.cache && K(this);
+  this.cache && J(this);
   return this;
 };
-w.addMapper = function(a, c) {
+x.addMapper = function(a, c) {
   if ("object" === typeof a) {
     return this.addReplacer(a, c);
   }
@@ -170,10 +170,10 @@ w.addMapper = function(a, c) {
   }
   this.mapper || (this.mapper = new Map());
   this.mapper.set(a, c);
-  this.cache && K(this);
+  this.cache && J(this);
   return this;
 };
-w.addMatcher = function(a, c) {
+x.addMatcher = function(a, c) {
   if ("object" === typeof a) {
     return this.addReplacer(a, c);
   }
@@ -184,26 +184,26 @@ w.addMatcher = function(a, c) {
   this.matcher.set(a, c);
   this.h += (this.h ? "|" : "") + a;
   this.M = null;
-  this.cache && K(this);
+  this.cache && J(this);
   return this;
 };
-w.addReplacer = function(a, c) {
+x.addReplacer = function(a, c) {
   if ("string" === typeof a) {
     return this.addMatcher(a, c);
   }
   this.replacer || (this.replacer = []);
   this.replacer.push(a, c);
-  this.cache && K(this);
+  this.cache && J(this);
   return this;
 };
-w.encode = function(a) {
+x.encode = function(a) {
   if (this.cache && a.length <= this.K) {
     if (this.H) {
       if (this.F.has(a)) {
         return this.F.get(a);
       }
     } else {
-      this.H = setTimeout(K, 50, this);
+      this.H = setTimeout(J, 50, this);
     }
   }
   this.normalize && ("function" === typeof this.normalize ? a = this.normalize(a) : a = fa ? a.normalize("NFKD").replace(fa, "").toLowerCase() : a.toLowerCase());
@@ -225,14 +225,14 @@ w.encode = function(a) {
                 continue;
               }
             } else {
-              this.H = setTimeout(K, 50, this);
+              this.H = setTimeout(J, 50, this);
             }
           }
-          this.stemmer && 2 < g.length && (this.N || (this.N = new RegExp("(?!^)(" + this.D + ")$")), g = g.replace(this.N, h => this.stemmer.get(h)));
+          this.stemmer && 2 < g.length && (this.N || (this.N = new RegExp("(?!^)(" + this.C + ")$")), g = g.replace(this.N, h => this.stemmer.get(h)));
           if (g && (this.mapper || this.dedupe && 1 < g.length)) {
             d = "";
-            for (let h = 0, l = "", m, n; h < g.length; h++) {
-              m = g.charAt(h), m === l && this.dedupe || ((n = this.mapper && this.mapper.get(m)) || "" === n ? n === l && this.dedupe || !(l = n) || (d += n) : d += l = m);
+            for (let h = 0, l = "", n, m; h < g.length; h++) {
+              n = g.charAt(h), n === l && this.dedupe || ((m = this.mapper && this.mapper.get(n)) || "" === m ? m === l && this.dedupe || !(l = m) || (d += m) : d += l = n);
             }
             g = d;
           }
@@ -252,12 +252,12 @@ w.encode = function(a) {
   this.cache && a.length <= this.K && (this.F.set(a, b), this.F.size > this.R && (this.F.clear(), this.K = this.K / 1.1 | 0));
   return b;
 };
-function K(a) {
+function J(a) {
   a.H = null;
   a.F.clear();
   a.G.clear();
 }
-;let L, M;
+;let K, L;
 async function ha(a) {
   a = a.data;
   var c = a.task;
@@ -265,25 +265,25 @@ async function ha(a) {
   let e = a.args;
   switch(c) {
     case "init":
-      M = a.options || {};
-      (c = a.factory) ? (Function("return " + c)()(self), L = new self.FlexSearch.Index(M), delete self.FlexSearch) : L = new N(M);
+      L = a.options || {};
+      (c = a.factory) ? (Function("return " + c)()(self), K = new self.FlexSearch.Index(L), delete self.FlexSearch) : K = new M(L);
       postMessage({id:b});
       break;
     default:
       let d;
       if ("export" === c) {
-        if (!M.export || "function" !== typeof M.export) {
+        if (!L.export || "function" !== typeof L.export) {
           throw Error('Either no extern configuration provided for the Worker-Index or no method was defined on the config property "export".');
         }
-        e[1] ? (e[0] = M.export, e[2] = 0, e[3] = 1) : e = null;
+        e[1] ? (e[0] = L.export, e[2] = 0, e[3] = 1) : e = null;
       }
       if ("import" === c) {
-        if (!M.import || "function" !== typeof M.import) {
+        if (!L.import || "function" !== typeof L.import) {
           throw Error('Either no extern configuration provided for the Worker-Index or no method was defined on the config property "import".');
         }
-        e[0] && (a = await M.import.call(L, e[0]), L.import(e[0], a));
+        e[0] && (a = await L.import.call(K, e[0]), K.import(e[0], a));
       } else {
-        (d = e && L[c].apply(L, e)) && d.then && (d = await d);
+        (d = e && K[c].apply(K, e)) && d.then && (d = await d);
       }
       postMessage("search" === c ? {id:b, msg:d} : {id:b});
   }
@@ -325,11 +325,11 @@ function S(a = {}) {
   function c(g) {
     function k(h) {
       h = h.data || h;
-      const l = h.id, m = l && d.h[l];
-      m && (m(h.msg), delete d.h[l]);
+      const l = h.id, n = l && d.h[l];
+      n && (n(h.msg), delete d.h[l]);
     }
     this.worker = g;
-    this.h = C();
+    this.h = B();
     if (this.worker) {
       e ? this.worker.on("message", k) : this.worker.onmessage = k;
       if (a.config) {
@@ -465,20 +465,20 @@ function ua(a, c) {
   return b;
 }
 ;U.prototype.add = function(a, c, b) {
-  H(a) && (c = a, a = I(c, this.key));
+  G(a) && (c = a, a = H(c, this.key));
   if (c && (a || 0 === a)) {
     if (!b && this.reg.has(a)) {
       return this.update(a, c);
     }
     for (let k = 0, h; k < this.field.length; k++) {
-      h = this.C[k];
+      h = this.D[k];
       var e = this.index.get(this.field[k]);
       if ("function" === typeof h) {
         var d = h(c);
         d && e.add(a, d, !1, !0);
       } else {
         if (d = h.I, !d || d(c)) {
-          h.constructor === String ? h = ["" + h] : D(h) && (h = [h]), va(c, h, this.J, 0, e, a, h[0], b);
+          h.constructor === String ? h = ["" + h] : C(h) && (h = [h]), va(c, h, this.J, 0, e, a, h[0], b);
         }
       }
     }
@@ -486,7 +486,7 @@ function ua(a, c) {
       for (e = 0; e < this.B.length; e++) {
         var f = this.B[e], g = this.T[e];
         d = this.tag.get(g);
-        let k = C();
+        let k = B();
         if ("function" === typeof f) {
           if (f = f(c), !f) {
             continue;
@@ -497,12 +497,12 @@ function ua(a, c) {
             continue;
           }
           f.constructor === String && (f = "" + f);
-          f = I(c, f);
+          f = H(c, f);
         }
         if (d && f) {
-          D(f) && (f = [f]);
-          for (let h = 0, l, m; h < f.length; h++) {
-            l = f[h], k[l] || (k[l] = 1, (g = d.get(l)) ? m = g : d.set(l, m = []), b && m.includes(a) || (m.push(a), this.fastupdate && ((g = this.reg.get(a)) ? g.push(m) : this.reg.set(a, [m]))));
+          C(f) && (f = [f]);
+          for (let h = 0, l, n; h < f.length; h++) {
+            l = f[h], k[l] || (k[l] = 1, (g = d.get(l)) ? n = g : d.set(l, n = []), b && n.includes(a) || (n.push(a), this.fastupdate && ((g = this.reg.get(a)) ? g.push(n) : this.reg.set(a, [n]))));
           }
         } else {
           d || console.warn("Tag '" + g + "' was not found");
@@ -512,24 +512,24 @@ function ua(a, c) {
     if (this.store && (!b || !this.store.has(a))) {
       let k;
       if (this.A) {
-        k = C();
+        k = B();
         for (let h = 0, l; h < this.A.length; h++) {
           l = this.A[h];
           if ((b = l.I) && !b(c)) {
             continue;
           }
-          let m;
+          let n;
           if ("function" === typeof l) {
-            m = l(c);
-            if (!m) {
+            n = l(c);
+            if (!n) {
               continue;
             }
             l = [l.U];
-          } else if (D(l) || l.constructor === String) {
+          } else if (C(l) || l.constructor === String) {
             k[l] = c[l];
             continue;
           }
-          wa(c, k, l, 0, l[0], m);
+          wa(c, k, l, 0, l[0], n);
         }
       }
       this.store.set(a, k || c);
@@ -547,7 +547,7 @@ function wa(a, c, b, e, d, f) {
         wa(a, c, b, e, d);
       }
     } else {
-      c = c[d] || (c[d] = C()), d = b[++e], wa(a, c, b, e, d);
+      c = c[d] || (c[d] = B()), d = b[++e], wa(a, c, b, e, d);
     }
   }
 }
@@ -578,12 +578,12 @@ function va(a, c, b, e, d, f, g, k) {
 ;function xa(a, c, b, e, d) {
   const f = a.length;
   let g = [], k, h;
-  k = C();
-  for (let l = 0, m, n, v, p; l < c; l++) {
+  k = B();
+  for (let l = 0, n, m, r, p; l < c; l++) {
     for (let q = 0; q < f; q++) {
-      if (v = a[q], l < v.length && (m = v[l])) {
-        for (let u = 0; u < m.length; u++) {
-          if (n = m[u], (h = k[n]) ? k[n]++ : (h = 0, k[n] = 1), p = g[h] || (g[h] = []), p.push(n), b && h === f - 1 && p.length - e === b) {
+      if (r = a[q], l < r.length && (n = r[l])) {
+        for (let t = 0; t < n.length; t++) {
+          if (m = n[t], (h = k[m]) ? k[m]++ : (h = 0, k[m] = 1), p = g[h] || (g[h] = []), p.push(m), b && h === f - 1 && p.length - e === b) {
             return e ? p.slice(e) : p;
           }
         }
@@ -608,7 +608,7 @@ function va(a, c, b, e, d, f, g, k) {
   return g;
 }
 function ya(a, c, b) {
-  const e = [], d = C();
+  const e = [], d = B();
   let f;
   var g = a.length;
   let k;
@@ -630,7 +630,7 @@ function ya(a, c, b) {
   return e;
 }
 function za(a, c) {
-  const b = C(), e = [];
+  const b = B(), e = [];
   for (let d = 0, f; d < c.length; d++) {
     f = c[d];
     for (let g = 0; g < f.length; g++) {
@@ -676,8 +676,8 @@ function za(a, c) {
 ;function Ba(a, c, b) {
   var e = b[0];
   if (e.then) {
-    return Promise.all(b).then(function(m) {
-      return a[c].apply(a, m);
+    return Promise.all(b).then(function(n) {
+      return a[c].apply(a, n);
     });
   }
   if (e[0] && e[0].index) {
@@ -685,32 +685,32 @@ function za(a, c) {
   }
   e = [];
   let d = [], f = 0, g = 0, k, h, l;
-  for (let m = 0, n; m < b.length; m++) {
-    if (n = b[m]) {
-      let v;
-      if (n.constructor === W) {
-        v = n.result;
-      } else if (n.constructor === Array) {
-        v = n;
+  for (let n = 0, m; n < b.length; n++) {
+    if (m = b[n]) {
+      let r;
+      if (m.constructor === W) {
+        r = m.result;
+      } else if (m.constructor === Array) {
+        r = m;
       } else {
-        if (f = n.limit || 0, g = n.offset || 0, l = n.suggest, h = n.resolve, k = n.enrich && h, n.index) {
-          n.resolve = !1, n.enrich = !1, v = n.index.search(n).result, n.resolve = h, n.enrich = k;
-        } else if (n.and) {
-          v = a.and(n.and);
-        } else if (n.or) {
-          v = a.or(n.or);
-        } else if (n.xor) {
-          v = a.xor(n.xor);
-        } else if (n.not) {
-          v = a.not(n.not);
+        if (f = m.limit || 0, g = m.offset || 0, l = m.suggest, h = m.resolve, k = m.enrich && h, m.index) {
+          m.resolve = !1, m.enrich = !1, r = m.index.search(m).result, m.resolve = h, m.enrich = k;
+        } else if (m.and) {
+          r = a.and(m.and);
+        } else if (m.or) {
+          r = a.or(m.or);
+        } else if (m.xor) {
+          r = a.xor(m.xor);
+        } else if (m.not) {
+          r = a.not(m.not);
         } else {
           continue;
         }
       }
-      if (v.then) {
-        d.push(v);
-      } else if (v.length) {
-        e[m] = v;
+      if (r.then) {
+        d.push(r);
+      } else if (r.length) {
+        e[n] = r;
       } else if (!l && ("and" === c || "xor" === c)) {
         e = [];
         break;
@@ -744,8 +744,8 @@ function Ca(a, c, b, e, d, f) {
     f && (a = !!f.suggest, d = f.resolve, c = f.limit, b = f.offset, e = f.enrich && d);
   }
   if (a) {
-    const {O:f, P:g, limit:k, offset:h, enrich:l, resolve:m, suggest:n} = Ba(this, "and", arguments);
-    return Da.call(this, f, g, k, h, l, m, n);
+    const {O:f, P:g, limit:k, offset:h, enrich:l, resolve:n, suggest:m} = Ba(this, "and", arguments);
+    return Da.call(this, f, g, k, h, l, n, m);
   }
   return d ? this.resolve(c, b, e) : this;
 };
@@ -754,8 +754,8 @@ function Da(a, c, b, e, d, f, g) {
     const k = this;
     return Promise.all(c).then(function(h) {
       a = [];
-      for (let l = 0, m; l < h.length; l++) {
-        (m = h[l]).length && (a[l] = m);
+      for (let l = 0, n; l < h.length; l++) {
+        (n = h[l]).length && (a[l] = n);
       }
       return Da.call(k, a, [], b, e, d, f, g);
     });
@@ -783,8 +783,8 @@ function Ea(a, c, b, e, d, f, g) {
     const k = this;
     return Promise.all(c).then(function(h) {
       a = [];
-      for (let l = 0, m; l < h.length; l++) {
-        (m = h[l]).length && (a[l] = m);
+      for (let l = 0, n; l < h.length; l++) {
+        (n = h[l]).length && (a[l] = n);
       }
       return Ea.call(k, a, [], b, e, d, f, g);
     });
@@ -801,24 +801,24 @@ function Ea(a, c, b, e, d, f, g) {
   return f ? this.resolve(b, e, d) : this;
 }
 function Fa(a, c, b, e, d) {
-  const f = [], g = C();
+  const f = [], g = B();
   let k = 0;
   for (let h = 0, l; h < a.length; h++) {
     if (l = a[h]) {
       k < l.length && (k = l.length);
-      for (let m = 0, n; m < l.length; m++) {
-        if (n = l[m]) {
-          for (let v = 0, p; v < n.length; v++) {
-            p = n[v], g[p] = g[p] ? 2 : 1;
+      for (let n = 0, m; n < l.length; n++) {
+        if (m = l[n]) {
+          for (let r = 0, p; r < m.length; r++) {
+            p = m[r], g[p] = g[p] ? 2 : 1;
           }
         }
       }
     }
   }
-  for (let h = 0, l, m = 0; h < k; h++) {
-    for (let n = 0, v; n < a.length; n++) {
-      if (v = a[n]) {
-        if (l = v[h]) {
+  for (let h = 0, l, n = 0; h < k; h++) {
+    for (let m = 0, r; m < a.length; m++) {
+      if (r = a[m]) {
+        if (l = r[h]) {
           for (let p = 0, q; p < l.length; p++) {
             if (q = l[p], 1 === g[q]) {
               if (b) {
@@ -829,10 +829,10 @@ function Fa(a, c, b, e, d) {
                     return f;
                   }
                 } else {
-                  const u = h + (n ? d : 0);
-                  f[u] || (f[u] = []);
-                  f[u].push(q);
-                  if (++m === c) {
+                  const t = h + (m ? d : 0);
+                  f[t] || (f[t] = []);
+                  f[t].push(q);
+                  if (++n === c) {
                     return f;
                   }
                 }
@@ -854,8 +854,8 @@ function Ga(a, c, b, e, d, f, g) {
     const k = this;
     return Promise.all(c).then(function(h) {
       a = [];
-      for (let l = 0, m; l < h.length; l++) {
-        (m = h[l]).length && (a[l] = m);
+      for (let l = 0, n; l < h.length; l++) {
+        (n = h[l]).length && (a[l] = n);
       }
       return Ga.call(k, a, [], b, e, d, f, g);
     });
@@ -944,14 +944,14 @@ W.prototype.resolve = function(a, c, b) {
   this.result = this.index = null;
   return e.length ? ("object" === typeof a && (b = a.enrich, c = a.offset, a = a.limit), Aa.call(d, e, a || 100, c, b)) : e;
 };
-C();
+B();
 U.prototype.search = function(a, c, b, e) {
-  b || (!c && H(a) ? (b = a, a = "") : H(c) && (b = c, c = 0));
+  b || (!c && G(a) ? (b = a, a = "") : G(c) && (b = c, c = 0));
   let d = [];
   var f = [];
   let g;
   let k, h, l;
-  let m = 0, n = !0, v;
+  let n = 0, m = !0, r;
   if (b) {
     b.constructor === Array && (b = {index:b});
     a = b.query || a;
@@ -960,56 +960,56 @@ U.prototype.search = function(a, c, b, e) {
     h = p || b.field || (h = b.index) && (h.index ? null : h);
     l = this.tag && b.tag;
     k = b.suggest;
-    n = !0;
-    this.store && b.enrich && !n && console.warn("Enrich results can only be done on a final resolver task or when calling .resolve({ enrich: true })");
-    v = (g = this.store && b.enrich && n) && b.highlight;
+    m = !0;
+    this.store && b.enrich && !m && console.warn("Enrich results can only be done on a final resolver task or when calling .resolve({ enrich: true })");
+    r = (g = this.store && b.enrich && m) && b.highlight;
     c = b.limit || c;
-    var u = b.offset || 0;
+    var t = b.offset || 0;
     c || (c = 100);
     if (l) {
       l.constructor !== Array && (l = [l]);
-      var t = [];
-      for (let y = 0, r; y < l.length; y++) {
-        r = l[y];
-        if (D(r)) {
+      var u = [];
+      for (let z = 0, v; z < l.length; z++) {
+        v = l[z];
+        if (C(v)) {
           throw Error("A tag option can't be a string, instead it needs a { field: tag } format.");
         }
-        if (r.field && r.tag) {
-          var x = r.tag;
-          if (x.constructor === Array) {
-            for (var z = 0; z < x.length; z++) {
-              t.push(r.field, x[z]);
+        if (v.field && v.tag) {
+          var w = v.tag;
+          if (w.constructor === Array) {
+            for (var y = 0; y < w.length; y++) {
+              u.push(v.field, w[y]);
             }
           } else {
-            t.push(r.field, x);
+            u.push(v.field, w);
           }
         } else {
-          x = Object.keys(r);
-          for (let E = 0, F, A; E < x.length; E++) {
-            if (F = x[E], A = r[F], A.constructor === Array) {
-              for (z = 0; z < A.length; z++) {
-                t.push(F, A[z]);
+          w = Object.keys(v);
+          for (let D = 0, E, F; D < w.length; D++) {
+            if (E = w[D], F = v[E], F.constructor === Array) {
+              for (y = 0; y < F.length; y++) {
+                u.push(E, F[y]);
               }
             } else {
-              t.push(F, A);
+              u.push(E, F);
             }
           }
         }
       }
-      if (!t.length) {
+      if (!u.length) {
         throw Error("Your tag definition within the search options is probably wrong. No valid tags found.");
       }
-      l = t;
+      l = u;
       if (!a) {
         f = [];
-        if (t.length) {
-          for (p = 0; p < t.length; p += 2) {
-            q = Ia.call(this, t[p], t[p + 1], c, u, g), d.push({field:t[p], tag:t[p + 1], result:q});
+        if (u.length) {
+          for (p = 0; p < u.length; p += 2) {
+            q = Ia.call(this, u[p], u[p + 1], c, t, g), d.push({field:u[p], tag:u[p + 1], result:q});
           }
         }
-        return f.length ? Promise.all(f).then(function(y) {
-          for (let r = 0; r < y.length; r++) {
-            d[r].result = y[r];
+        return f.length ? Promise.all(f).then(function(z) {
+          for (let v = 0; v < z.length; v++) {
+            d[v].result = z[v];
           }
           return d;
         }) : d;
@@ -1018,126 +1018,134 @@ U.prototype.search = function(a, c, b, e) {
     h && h.constructor !== Array && (h = [h]);
   }
   h || (h = this.field);
-  t = !e && (this.worker || this.db) && [];
-  for (let y = 0, r, E, F; y < h.length; y++) {
-    E = h[y];
-    let A;
-    D(E) || (A = E, E = A.field, a = A.query || a, c = A.limit || c, u = A.offset || u, k = A.suggest || k, g = this.store && (A.enrich || g));
+  u = !e && (this.worker || this.db) && [];
+  for (let z = 0, v, D, E; z < h.length; z++) {
+    D = h[z];
+    let F;
+    C(D) || (F = D, D = F.field, a = F.query || a, c = F.limit || c, t = F.offset || t, k = F.suggest || k, g = this.store && (F.enrich || g));
     if (e) {
-      r = e[y];
+      v = e[z];
     } else {
-      if (x = A || b, z = this.index.get(E), l && (x.enrich = !1), t) {
-        t[y] = z.search(a, c, x);
-        x && g && (x.enrich = g);
+      if (w = F || b, y = this.index.get(D), l && (w.enrich = !1), u) {
+        u[z] = y.search(a, c, w);
+        w && g && (w.enrich = g);
         continue;
       } else {
-        r = z.search(a, c, x), x && g && (x.enrich = g);
+        v = y.search(a, c, w), w && g && (w.enrich = g);
       }
     }
-    F = r && (n ? r.length : r.result.length);
-    if (l && F) {
-      x = [];
-      z = 0;
-      for (let G = 0, O, Ya; G < l.length; G += 2) {
-        O = this.tag.get(l[G]);
+    E = v && (m ? v.length : v.result.length);
+    if (l && E) {
+      w = [];
+      y = 0;
+      for (let N = 0, O, Za; N < l.length; N += 2) {
+        O = this.tag.get(l[N]);
         if (!O) {
-          if (console.warn("Tag '" + l[G] + ":" + l[G + 1] + "' will be skipped because there is no field '" + l[G] + "'."), k) {
+          if (console.warn("Tag '" + l[N] + ":" + l[N + 1] + "' will be skipped because there is no field '" + l[N] + "'."), k) {
             continue;
           } else {
-            return n ? d : new W(d);
+            return m ? d : new W(d);
           }
         }
-        if (Ya = (O = O && O.get(l[G + 1])) && O.length) {
-          z++, x.push(O);
+        if (Za = (O = O && O.get(l[N + 1])) && O.length) {
+          y++, w.push(O);
         } else if (!k) {
-          return n ? d : new W(d);
+          return m ? d : new W(d);
         }
       }
-      if (z) {
-        r = za(r, x);
-        F = r.length;
-        if (!F && !k) {
-          return n ? r : new W(r);
+      if (y) {
+        v = za(v, w);
+        E = v.length;
+        if (!E && !k) {
+          return m ? v : new W(v);
         }
-        z--;
+        y--;
       }
     }
-    if (F) {
-      f[m] = E, d.push(r), m++;
+    if (E) {
+      f[n] = D, d.push(v), n++;
     } else if (1 === h.length) {
-      return n ? d : new W(d);
+      return m ? d : new W(d);
     }
   }
-  if (t) {
-    const y = this;
-    return Promise.all(t).then(function(r) {
-      return r.length ? y.search(a, c, b, r) : r;
+  if (u) {
+    const z = this;
+    return Promise.all(u).then(function(v) {
+      return v.length ? z.search(a, c, b, v) : v;
     });
   }
-  if (!m) {
-    return n ? d : new W(d);
+  if (!n) {
+    return m ? d : new W(d);
   }
   if (p && (!g || !this.store)) {
     return d[0];
   }
-  t = [];
-  for (u = 0; u < f.length; u++) {
-    e = d[u];
+  u = [];
+  for (t = 0; t < f.length; t++) {
+    e = d[t];
     g && e.length && "undefined" === typeof e[0].doc && (e = V.call(this, e));
     if (p) {
-      return n ? e : new W(e);
+      return m ? r ? Ja(a, e, this.index, p, r) : e : new W(e);
     }
-    d[u] = {field:f[u], result:e};
+    d[t] = {field:f[t], result:e};
   }
-  return q ? Ja(d) : v ? Ka(d, a, this.index, this.field, this.C, v) : d;
+  return q ? Ka(d) : r ? Ja(a, d, this.index, p, r) : d;
 };
-function Ka(a, c, b, e, d, f) {
-  let g, k, h;
-  for (let l = 0, m, n, v, p; l < a.length; l++) {
-    m = a[l].field;
-    if (!m) {
-      continue;
+function Ja(a, c, b, e, d) {
+  let f, g;
+  for (let h = 0, l, n, m; h < c.length; h++) {
+    let r;
+    if (e) {
+      r = c, m = e;
+    } else {
+      var k = c[h];
+      m = k.field;
+      if (!m) {
+        continue;
+      }
+      r = k.result;
     }
-    let q = a[l].result;
-    v = b.get(m);
-    n = v.encoder;
-    h = v.tokenize;
-    p = d[e.indexOf(m)];
-    n !== g && (g = n, k = g.encode(c));
-    for (let u = 0; u < q.length; u++) {
-      let t = "", x = I(q[u].doc, p).split(/\s+/);
-      for (let z = 0, y, r; z < x.length; z++) {
-        y = x[z];
-        r = n.encode(y);
-        r = 1 < r.length ? r.join(" ") : r[0];
-        let E;
-        if (r && y) {
-          for (let F = 0, A; F < k.length; F++) {
-            if (A = k[F], "strict" === h) {
-              if (r === A) {
-                t += (t ? " " : "") + f.replace("$1", y);
-                E = !0;
+    n = b.get(m);
+    l = n.encoder;
+    k = n.tokenize;
+    l !== f && (f = l, g = f.encode(a));
+    for (let p = 0; p < r.length; p++) {
+      let q = "", t = H(r[p].doc, m).split(/\s+/);
+      for (let u = 0, w, y; u < t.length; u++) {
+        w = t[u];
+        y = l.encode(w);
+        y = 1 < y.length ? y.join(" ") : y[0];
+        let z;
+        if (y && w) {
+          for (let v = 0, D; v < g.length; v++) {
+            if (D = g[v], "strict" === k) {
+              if (y === D) {
+                q += (q ? " " : "") + d.replace("$1", w);
+                z = !0;
                 break;
               }
             } else {
-              const G = r.indexOf(A);
-              if (-1 < G) {
-                t += (t ? " " : "") + y.substring(0, G) + f.replace("$1", y.substring(G, A.length)) + y.substring(G + A.length);
-                E = !0;
+              const E = y.indexOf(D);
+              if (-1 < E) {
+                q += (q ? " " : "") + w.substring(0, E) + d.replace("$1", w.substring(E, D.length)) + w.substring(E + D.length);
+                z = !0;
                 break;
               }
             }
           }
         }
-        E || (t += (t ? " " : "") + x[z]);
+        z || (q += (q ? " " : "") + t[u]);
       }
-      q[u].highlight = t;
+      r[p].highlight = q;
+    }
+    if (e) {
+      break;
     }
   }
-  return a;
+  return c;
 }
-function Ja(a) {
-  const c = [], b = C();
+function Ka(a) {
+  const c = [], b = B();
   for (let e = 0, d, f; e < a.length; e++) {
     d = a[e];
     f = d.result;
@@ -1176,7 +1184,7 @@ function V(a) {
   }
   const c = a.document || a.doc || a;
   var b;
-  this.C = [];
+  this.D = [];
   this.field = [];
   this.J = [];
   this.key = (b = c.key || c.id) && La(b, this.J) || "id";
@@ -1188,13 +1196,13 @@ function V(a) {
   this.priority = a.priority || 4;
   b = new Map();
   let e = c.index || c.field || c;
-  D(e) && (e = [e]);
+  C(e) && (e = [e]);
   for (let d = 0, f, g; d < e.length; d++) {
-    f = e[d], D(f) || (g = f, f = f.field), g = H(g) ? Object.assign({}, a, g) : a, b.set(f, new N(g, this.reg)), g.custom ? this.C[d] = g.custom : (this.C[d] = La(f, this.J), g.filter && ("string" === typeof this.C[d] && (this.C[d] = new String(this.C[d])), this.C[d].I = g.filter)), this.field[d] = f;
+    f = e[d], C(f) || (g = f, f = f.field), g = G(g) ? Object.assign({}, a, g) : a, b.set(f, new M(g, this.reg)), g.custom ? this.D[d] = g.custom : (this.D[d] = La(f, this.J), g.filter && ("string" === typeof this.D[d] && (this.D[d] = new String(this.D[d])), this.D[d].I = g.filter)), this.field[d] = f;
   }
   if (this.A) {
     a = c.store;
-    D(a) && (a = [a]);
+    C(a) && (a = [a]);
     for (let d = 0, f, g; d < a.length; d++) {
       f = a[d], g = f.field || f, f.custom ? (this.A[d] = f.custom, f.custom.U = g) : (this.A[d] = La(g, this.J), f.filter && ("string" === typeof this.A[d] && (this.A[d] = new String(this.A[d])), this.A[d].I = f.filter));
     }
@@ -1228,15 +1236,15 @@ function La(a, c) {
   e < b.length && (b.length = e);
   return 1 < e ? b : b[0];
 }
-w = U.prototype;
-w.append = function(a, c) {
+x = U.prototype;
+x.append = function(a, c) {
   return this.add(a, c, !0);
 };
-w.update = function(a, c) {
+x.update = function(a, c) {
   return this.remove(a).add(a, c);
 };
-w.remove = function(a) {
-  H(a) && (a = I(a, this.key));
+x.remove = function(a) {
+  G(a) && (a = H(a, this.key));
   for (var c of this.index.values()) {
     c.remove(a, !0);
   }
@@ -1256,7 +1264,7 @@ w.remove = function(a) {
   this.cache && this.cache.remove(a);
   return this;
 };
-w.clear = function() {
+x.clear = function() {
   const a = [];
   for (const c of this.index.values()) {
     const b = c.clear();
@@ -1271,25 +1279,25 @@ w.clear = function() {
   this.cache && this.cache.clear();
   return a.length ? Promise.all(a) : this;
 };
-w.contain = function(a) {
+x.contain = function(a) {
   return this.reg.has(a);
 };
-w.cleanup = function() {
+x.cleanup = function() {
   for (const a of this.index.values()) {
     a.cleanup();
   }
   return this;
 };
-w.get = function(a) {
+x.get = function(a) {
   return this.store.get(a) || null;
 };
-w.set = function(a, c) {
-  "object" === typeof a && (c = a, a = I(c, this.key));
+x.set = function(a, c) {
+  "object" === typeof a && (c = a, a = H(c, this.key));
   this.store.set(a, c);
   return this;
 };
-w.searchCache = Ma;
-w.export = function(a, c, b = 0, e = 0) {
+x.searchCache = Ma;
+x.export = function(a, c, b = 0, e = 0) {
   if (b < this.field.length) {
     const g = this.field[b];
     if ((c = this.index.get(g).export(a, g, b, e = 1)) && c.then) {
@@ -1322,7 +1330,7 @@ w.export = function(a, c, b = 0, e = 0) {
   }
   return ta.call(this, a, c, d, f, b, e);
 };
-w.import = function(a, c) {
+x.import = function(a, c) {
   var b = a.split(".");
   "json" === b[b.length - 1] && b.pop();
   a = 2 < b.length ? b[0] : "";
@@ -1404,7 +1412,7 @@ var Ta = {Exact:Na, Default:Oa, Normalize:Oa, LatinBalance:{mapper:Pa}, LatinAdv
     a[b] = e;
   }
 }}, CJK:{split:""}, LatinExact:Na, LatinDefault:Oa, LatinSimple:Oa};
-N.prototype.remove = function(a, c) {
+M.prototype.remove = function(a, c) {
   const b = this.reg.size && (this.fastupdate ? this.reg.get(a) : this.reg.has(a));
   if (b) {
     if (this.fastupdate) {
@@ -1454,28 +1462,28 @@ function Y(a, c) {
   return b;
 }
 ;const Ua = {memory:{resolution:1}, performance:{resolution:3, fastupdate:!0, context:{depth:1, resolution:1}}, match:{tokenize:"forward"}, score:{resolution:9, context:{depth:2, resolution:3}}};
-N.prototype.add = function(a, c, b, e) {
+M.prototype.add = function(a, c, b, e) {
   if (c && (a || 0 === a)) {
     if (!e && !b && this.reg.has(a)) {
       return this.update(a, c);
     }
     c = this.encoder.encode(c);
     if (e = c.length) {
-      const l = C(), m = C(), n = this.depth, v = this.resolution;
+      const l = B(), n = B(), m = this.depth, r = this.resolution;
       for (let p = 0; p < e; p++) {
         let q = c[this.rtl ? e - 1 - p : p];
         var d = q.length;
-        if (d && (n || !m[q])) {
-          var f = this.score ? this.score(c, q, p, null, 0) : Va(v, e, p), g = "";
+        if (d && (m || !n[q])) {
+          var f = this.score ? this.score(c, q, p, null, 0) : Va(r, e, p), g = "";
           switch(this.tokenize) {
             case "full":
               if (2 < d) {
-                for (let u = 0, t; u < d; u++) {
-                  for (f = d; f > u; f--) {
-                    g = q.substring(u, f);
-                    t = this.rtl ? d - 1 - u : u;
-                    var k = this.score ? this.score(c, q, p, g, t) : Va(v, e, p, d, t);
-                    Z(this, m, g, k, a, b);
+                for (let t = 0, u; t < d; t++) {
+                  for (f = d; f > t; f--) {
+                    g = q.substring(t, f);
+                    u = this.rtl ? d - 1 - t : t;
+                    var k = this.score ? this.score(c, q, p, g, u) : Va(r, e, p, d, u);
+                    Z(this, n, g, k, a, b);
                   }
                 }
                 break;
@@ -1485,25 +1493,25 @@ N.prototype.add = function(a, c, b, e) {
               if (1 < d) {
                 for (k = d - 1; 0 < k; k--) {
                   g = q[this.rtl ? d - 1 - k : k] + g;
-                  var h = this.score ? this.score(c, q, p, g, k) : Va(v, e, p, d, k);
-                  Z(this, m, g, h, a, b);
+                  var h = this.score ? this.score(c, q, p, g, k) : Va(r, e, p, d, k);
+                  Z(this, n, g, h, a, b);
                 }
                 g = "";
               }
             case "forward":
               if (1 < d) {
                 for (k = 0; k < d; k++) {
-                  g += q[this.rtl ? d - 1 - k : k], Z(this, m, g, f, a, b);
+                  g += q[this.rtl ? d - 1 - k : k], Z(this, n, g, f, a, b);
                 }
                 break;
               }
             default:
-              if (Z(this, m, q, f, a, b), n && 1 < e && p < e - 1) {
-                for (d = C(), g = this.S, f = q, k = Math.min(n + 1, this.rtl ? p + 1 : e - p), d[f] = 1, h = 1; h < k; h++) {
+              if (Z(this, n, q, f, a, b), m && 1 < e && p < e - 1) {
+                for (d = B(), g = this.S, f = q, k = Math.min(m + 1, this.rtl ? p + 1 : e - p), d[f] = 1, h = 1; h < k; h++) {
                   if ((q = c[this.rtl ? e - 1 - p - h : p + h]) && !d[q]) {
                     d[q] = 1;
-                    const u = this.score ? this.score(c, f, p, q, h - 1) : Va(g + (e / 2 > g ? 0 : 1), e, p, k - 1, h - 1), t = this.bidirectional && q > f;
-                    Z(this, l, t ? f : q, u, a, b, t ? q : f);
+                    const t = this.score ? this.score(c, f, p, q, h - 1) : Va(g + (e / 2 > g ? 0 : 1), e, p, k - 1, h - 1), u = this.bidirectional && q > f;
+                    Z(this, l, u ? f : q, t, a, b, u ? q : f);
                   }
                 }
               }
@@ -1518,13 +1526,13 @@ N.prototype.add = function(a, c, b, e) {
 function Z(a, c, b, e, d, f, g) {
   let k = g ? a.ctx : a.map, h;
   if (!c[b] || g && !(h = c[b])[g]) {
-    g ? (c = h || (c[b] = C()), c[g] = 1, (h = k.get(g)) ? k = h : k.set(g, k = new Map())) : c[b] = 1, (h = k.get(b)) ? k = h : k.set(b, k = []), k = k[e] || (k[e] = []), f && k.includes(d) || (k.push(d), a.fastupdate && ((c = a.reg.get(d)) ? c.push(k) : a.reg.set(d, [k])));
+    g ? (c = h || (c[b] = B()), c[g] = 1, (h = k.get(g)) ? k = h : k.set(g, k = new Map())) : c[b] = 1, (h = k.get(b)) ? k = h : k.set(b, k = []), k = k[e] || (k[e] = []), f && k.includes(d) || (k.push(d), a.fastupdate && ((c = a.reg.get(d)) ? c.push(k) : a.reg.set(d, [k])));
   }
 }
 function Va(a, c, b, e, d) {
   return b && 1 < a ? c + (e || 0) <= a ? b + (d || 0) : (a - 1) / (c + (e || 0)) * (b + (d || 0)) + 1 | 0 : 0;
 }
-;N.prototype.search = function(a, c, b) {
+;M.prototype.search = function(a, c, b) {
   b || (c || "object" !== typeof a ? "object" === typeof c && (b = c, c = 0) : (b = a, a = ""));
   var e = [], d = 0;
   if (b) {
@@ -1548,59 +1556,59 @@ function Va(a, c, b, e, d) {
   if (2 === b && f && !g) {
     return g = c, (c = Wa(this, a[1], a[0])) && c.length ? Aa.call(this, c, g, d) : [];
   }
-  k = C();
+  k = B();
   let l = 0;
   if (f) {
-    var m = a[0];
+    var n = a[0];
     l = 1;
   }
-  h || 0 === h || (h = m ? this.S : this.resolution);
-  for (let q, u; l < b; l++) {
-    if ((u = a[l]) && !k[u]) {
-      k[u] = 1;
-      q = Wa(this, u, m);
+  h || 0 === h || (h = n ? this.S : this.resolution);
+  for (let q, t; l < b; l++) {
+    if ((t = a[l]) && !k[t]) {
+      k[t] = 1;
+      q = Wa(this, t, n);
       a: {
         f = q;
-        var n = e, v = g, p = h;
-        let t = [];
+        var m = e, r = g, p = h;
+        let u = [];
         if (f && f.length) {
           if (f.length <= p) {
-            n.push(f);
+            m.push(f);
             q = void 0;
             break a;
           }
-          for (let x = 0, z; x < p; x++) {
-            if (z = f[x]) {
-              t[x] = z;
+          for (let w = 0, y; w < p; w++) {
+            if (y = f[w]) {
+              u[w] = y;
             }
           }
-          if (t.length) {
-            n.push(t);
+          if (u.length) {
+            m.push(u);
             q = void 0;
             break a;
           }
         }
-        q = v ? void 0 : t;
+        q = r ? void 0 : u;
       }
       if (q) {
         e = q;
         break;
       }
-      m && (g && q && e.length || (m = u));
+      n && (g && q && e.length || (n = t));
     }
-    g && m && l === b - 1 && !e.length && (h = this.resolution, m = "", l = -1, k = C());
+    g && n && l === b - 1 && !e.length && (h = this.resolution, n = "", l = -1, k = B());
   }
   a: {
     a = e;
     e = a.length;
-    m = a;
+    n = a;
     if (1 < e) {
-      m = xa(a, h, c, d, g);
+      n = xa(a, h, c, d, g);
     } else if (1 === e) {
       g = Aa.call(null, a[0], c, d);
       break a;
     }
-    g = m;
+    g = n;
   }
   return g;
 };
@@ -1610,19 +1618,19 @@ function Wa(a, c, b) {
   a = b ? (a = a.ctx.get(b)) && a.get(c) : a.map.get(c);
   return a;
 }
-;function N(a, c) {
-  if (!this || this.constructor !== N) {
-    return new N(a);
+;function M(a, c) {
+  if (!this || this.constructor !== M) {
+    return new M(a);
   }
   if (a) {
-    var b = D(a) ? a : a.preset;
+    var b = C(a) ? a : a.preset;
     b && (Ua[b] || console.warn("Preset not found: " + b), a = Object.assign({}, Ua[b], a));
   } else {
     a = {};
   }
   b = a.context;
-  const e = !0 === b ? {depth:1} : b || {}, d = D(a.encoder) ? Ta[a.encoder] : a.encode || a.encoder || {};
-  this.encoder = d.encode ? d : "object" === typeof d ? new J(d) : {encode:d};
+  const e = !0 === b ? {depth:1} : b || {}, d = C(a.encoder) ? Ta[a.encoder] : a.encode || a.encoder || {};
+  this.encoder = d.encode ? d : "object" === typeof d ? new I(d) : {encode:d};
   this.resolution = a.resolution || 9;
   this.tokenize = b = (b = a.tokenize) && "default" !== b && "exact" !== b && b || "strict";
   this.depth = "strict" === b && e.depth || 0;
@@ -1639,25 +1647,25 @@ function Wa(a, c, b) {
   this.cache = (b = a.cache || null) && new X(b);
   this.priority = a.priority || 4;
 }
-w = N.prototype;
-w.clear = function() {
+x = M.prototype;
+x.clear = function() {
   this.map.clear();
   this.ctx.clear();
   this.reg.clear();
   this.cache && this.cache.clear();
   return this;
 };
-w.append = function(a, c) {
+x.append = function(a, c) {
   return this.add(a, c, !0);
 };
-w.contain = function(a) {
+x.contain = function(a) {
   return this.reg.has(a);
 };
-w.update = function(a, c) {
+x.update = function(a, c) {
   const b = this, e = this.remove(a);
   return e && e.then ? e.then(() => b.add(a, c)) : this.add(a, c);
 };
-w.cleanup = function() {
+x.cleanup = function() {
   if (!this.fastupdate) {
     return console.info('Cleanup the index isn\'t required when not using "fastupdate".'), this;
   }
@@ -1665,8 +1673,8 @@ w.cleanup = function() {
   this.depth && Y(this.ctx);
   return this;
 };
-w.searchCache = Ma;
-w.export = function(a, c, b = 0, e = 0) {
+x.searchCache = Ma;
+x.export = function(a, c, b = 0, e = 0) {
   let d, f;
   switch(e) {
     case 0:
@@ -1690,7 +1698,7 @@ w.export = function(a, c, b = 0, e = 0) {
   }
   return ta.call(this, a, c, d, f, b, e);
 };
-w.import = function(a, c) {
+x.import = function(a, c) {
   if (c) {
     switch("string" === typeof c && (c = JSON.parse(c)), a = a.split("."), "json" === a[a.length - 1] && a.pop(), 3 === a.length && a.shift(), a = 1 < a.length ? a[1] : a[0], a) {
       case "reg":
@@ -1705,7 +1713,7 @@ w.import = function(a, c) {
     }
   }
 };
-w.serialize = function(a = !0) {
+x.serialize = function(a = !0) {
   let c = "", b = "", e = "";
   if (this.reg.size) {
     let f;
@@ -1726,11 +1734,11 @@ w.serialize = function(a = !0) {
   }
   return a ? "function inject(index){" + c + b + e + "}" : c + b + e;
 };
-ia(N.prototype);
-C();
-const Xa = {Index:N, Charset:Ta, Encoder:J, Document:U, Worker:null, Resolver:null, IndexedDB:null, Language:{}}, Za = "undefined" !== typeof self ? self : "undefined" !== typeof global ? global : self;
+ia(M.prototype);
+B();
+const Xa = {Index:M, Charset:Ta, Encoder:I, Document:U, Worker:null, Resolver:null, IndexedDB:null, Language:{}}, Ya = "undefined" !== typeof self ? self : "undefined" !== typeof global ? global : self;
 let $a;
-($a = Za.define) && $a.amd ? $a([], function() {
+($a = Ya.define) && $a.amd ? $a([], function() {
   return Xa;
-}) : "object" === typeof Za.exports ? Za.exports = Xa : Za.FlexSearch = Xa;
+}) : "object" === typeof Ya.exports ? Ya.exports = Xa : Ya.FlexSearch = Xa;
 }(this||self));
diff --git a/dist/flexsearch.compact.min.js b/dist/flexsearch.compact.min.js
index e9c7855..b6d0bd7 100644
--- a/dist/flexsearch.compact.min.js
+++ b/dist/flexsearch.compact.min.js
@@ -1,63 +1,63 @@
 /**!
- * FlexSearch.js v0.8.154 (Bundle)
+ * FlexSearch.js v0.8.155 (Bundle)
  * Author and Copyright: Thomas Wilkerling
  * Licence: Apache-2.0
  * Hosted by Nextapps GmbH
  * https://github.com/nextapps-de/flexsearch
  */
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+0===h||(h=m?this.S:this.resolution);for(let q,t;l<b;l++){if((t=a[l])&&!k[t]){k[t]=1;q=Wa(this,t,m);a:{f=q;var n=e,r=g,p=h;let u=[];if(f&&f.length){if(f.length<=p){n.push(f);q=void 0;break a}for(let w=0,y;w<p;w++)if(y=f[w])u[w]=y;if(u.length){n.push(u);q=void 0;break a}}q=r?void 0:u}if(q){e=q;break}m&&(g&&q&&e.length||(m=t))}g&&m&&l===b-1&&!e.length&&(h=this.resolution,m="",l=-1,k=B())}a:{a=e;e=a.length;m=a;if(1<e)m=xa(a,h,c,d,g);else if(1===e){g=Aa.call(null,a[0],c,d);break a}g=m}return g};
+function Wa(a,c,b){let e;b&&(e=a.bidirectional&&c>b)&&(e=b,b=c,c=e);a=b?(a=a.ctx.get(b))&&a.get(c):a.map.get(c);return a};function N(a,c){if(!this||this.constructor!==N)return new N(a);if(a){var b=C(a)?a:a.preset;b&&(a=Object.assign({},Ua[b],a))}else a={};b=a.context;const e=!0===b?{depth:1}:b||{},d=C(a.encoder)?Ta[a.encoder]:a.encode||a.encoder||{};this.encoder=d.encode?d:"object"===typeof d?new I(d):{encode:d};this.resolution=a.resolution||9;this.tokenize=b=(b=a.tokenize)&&"default"!==b&&"exact"!==b&&b||"strict";this.depth="strict"===b&&e.depth||0;this.bidirectional=!1!==e.bidirectional;this.fastupdate=!!a.fastupdate;
+this.score=a.score||null;b=!1;this.map=new Map;this.ctx=new Map;this.reg=c||(this.fastupdate?new Map:new Set);this.S=e.resolution||3;this.rtl=d.rtl||a.rtl||!1;this.cache=(b=a.cache||null)&&new X(b);this.priority=a.priority||4}x=N.prototype;x.clear=function(){this.map.clear();this.ctx.clear();this.reg.clear();this.cache&&this.cache.clear();return this};x.append=function(a,c){return this.add(a,c,!0)};x.contain=function(a){return this.reg.has(a)};
+x.update=function(a,c){const b=this,e=this.remove(a);return e&&e.then?e.then(()=>b.add(a,c)):this.add(a,c)};x.cleanup=function(){if(!this.fastupdate)return this;Y(this.map);this.depth&&Y(this.ctx);return this};x.searchCache=Ma;x.export=function(a,c,b=0,e=0){let d,f;switch(e){case 0:d="reg";f=sa(this.reg);break;case 1:d="cfg";f=null;break;case 2:d="map";f=oa(this.map,this.reg.size);break;case 3:d="ctx";f=qa(this.ctx,this.reg.size);break;default:return}return T.call(this,a,c,d,f,b,e)};
+x.import=function(a,c){if(c)switch("string"===typeof c&&(c=JSON.parse(c)),a=a.split("."),"json"===a[a.length-1]&&a.pop(),3===a.length&&a.shift(),a=1<a.length?a[1]:a[0],a){case "reg":this.fastupdate=!1;this.reg=ta(c,this.reg);break;case "map":this.map=pa(c,this.map);break;case "ctx":this.ctx=ra(c,this.ctx)}};
+x.serialize=function(a=!0){let c="",b="",e="";if(this.reg.size){let f;for(var d of this.reg.keys())f||(f=typeof d),c+=(c?",":"")+("string"===f?'"'+d+'"':d);c="index.reg=new Set(["+c+"]);";b=ua(this.map,f);b="index.map=new Map(["+b+"]);";for(const g of this.ctx.entries()){d=g[0];let k=ua(g[1],f);k="new Map(["+k+"])";k='["'+d+'",'+k+"]";e+=(e?",":"")+k}e="index.ctx=new Map(["+e+"]);"}return a?"function inject(index){"+c+b+e+"}":c+b+e};ja(N.prototype);B();const Xa={Index:N,Charset:Ta,Encoder:I,Document:U,Worker:null,Resolver:null,IndexedDB:null,Language:{}},Za="undefined"!==typeof self?self:"undefined"!==typeof global?global:self;let $a;($a=Za.define)&&$a.amd?$a([],function(){return Xa}):"object"===typeof Za.exports?Za.exports=Xa:Za.FlexSearch=Xa;}(this||self));
diff --git a/dist/flexsearch.compact.module.debug.js b/dist/flexsearch.compact.module.debug.js
index fec975f..d2ccf7c 100644
--- a/dist/flexsearch.compact.module.debug.js
+++ b/dist/flexsearch.compact.module.debug.js
@@ -1,12 +1,12 @@
 /**!
- * FlexSearch.js v0.8.154 (Bundle/Debug)
+ * FlexSearch.js v0.8.155 (Bundle/Debug)
  * Author and Copyright: Thomas Wilkerling
  * Licence: Apache-2.0
  * Hosted by Nextapps GmbH
  * https://github.com/nextapps-de/flexsearch
  */
-var w;
-function B(a, c, b) {
+var x;
+function A(a, c, b) {
   const e = typeof b, d = typeof a;
   if ("undefined" !== e) {
     if ("undefined" !== d) {
@@ -43,17 +43,17 @@ function B(a, c, b) {
   }
   return "undefined" === d ? c : a;
 }
-function C() {
+function B() {
   return Object.create(null);
 }
-function D(a) {
+function C(a) {
   return "string" === typeof a;
 }
-function H(a) {
+function G(a) {
   return "object" === typeof a;
 }
-function I(a, c) {
-  if (D(c)) {
+function H(a, c) {
+  if (C(c)) {
     a = a[c];
   } else {
     for (let b = 0; a && b < c.length; b++) {
@@ -70,9 +70,9 @@ function aa(a) {
   return c;
 }
 ;const ba = /[^\p{L}\p{N}]+/u, ca = /(\d{3})/g, da = /(\D)(\d{3})/g, ea = /(\d{3})(\D)/g, fa = /[\u0300-\u036f]/g;
-function J(a = {}) {
-  if (!this || this.constructor !== J) {
-    return new J(...arguments);
+function I(a = {}) {
+  if (!this || this.constructor !== I) {
+    return new I(...arguments);
   }
   if (arguments.length) {
     for (a = 0; a < arguments.length; a++) {
@@ -82,9 +82,9 @@ function J(a = {}) {
     this.assign(a);
   }
 }
-w = J.prototype;
-w.assign = function(a) {
-  this.normalize = B(a.normalize, !0, this.normalize);
+x = I.prototype;
+x.assign = function(a) {
+  this.normalize = A(a.normalize, !0, this.normalize);
   let c = a.include, b = c || a.exclude || a.split, e;
   if (b || "" === b) {
     if ("object" === typeof b && b.constructor !== RegExp) {
@@ -107,33 +107,33 @@ w.assign = function(a) {
     } else {
       this.split = b, e = !1 === b || 2 > "a1a".split(b).length;
     }
-    this.numeric = B(a.numeric, e);
+    this.numeric = A(a.numeric, e);
   } else {
     try {
-      this.split = B(this.split, ba);
+      this.split = A(this.split, ba);
     } catch (d) {
       console.warn("This platform does not support unicode regex. It falls back to using simple whitespace splitter instead: /s+/."), this.split = /\s+/;
     }
-    this.numeric = B(a.numeric, B(this.numeric, !0));
+    this.numeric = A(a.numeric, A(this.numeric, !0));
   }
-  this.prepare = B(a.prepare, null, this.prepare);
-  this.finalize = B(a.finalize, null, this.finalize);
+  this.prepare = A(a.prepare, null, this.prepare);
+  this.finalize = A(a.finalize, null, this.finalize);
   b = a.filter;
-  this.filter = "function" === typeof b ? b : B(b && new Set(b), null, this.filter);
-  this.dedupe = B(a.dedupe, !0, this.dedupe);
-  this.matcher = B((b = a.matcher) && new Map(b), null, this.matcher);
-  this.mapper = B((b = a.mapper) && new Map(b), null, this.mapper);
-  this.stemmer = B((b = a.stemmer) && new Map(b), null, this.stemmer);
-  this.replacer = B(a.replacer, null, this.replacer);
-  this.minlength = B(a.minlength, 1, this.minlength);
-  this.maxlength = B(a.maxlength, 1024, this.maxlength);
-  this.rtl = B(a.rtl, !1, this.rtl);
-  if (this.cache = b = B(a.cache, !0, this.cache)) {
+  this.filter = "function" === typeof b ? b : A(b && new Set(b), null, this.filter);
+  this.dedupe = A(a.dedupe, !0, this.dedupe);
+  this.matcher = A((b = a.matcher) && new Map(b), null, this.matcher);
+  this.mapper = A((b = a.mapper) && new Map(b), null, this.mapper);
+  this.stemmer = A((b = a.stemmer) && new Map(b), null, this.stemmer);
+  this.replacer = A(a.replacer, null, this.replacer);
+  this.minlength = A(a.minlength, 1, this.minlength);
+  this.maxlength = A(a.maxlength, 1024, this.maxlength);
+  this.rtl = A(a.rtl, !1, this.rtl);
+  if (this.cache = b = A(a.cache, !0, this.cache)) {
     this.H = null, this.R = "number" === typeof b ? b : 2e5, this.F = new Map(), this.G = new Map(), this.L = this.K = 128;
   }
   this.h = "";
   this.M = null;
-  this.D = "";
+  this.C = "";
   this.N = null;
   if (this.matcher) {
     for (const d of this.matcher.keys()) {
@@ -142,25 +142,25 @@ w.assign = function(a) {
   }
   if (this.stemmer) {
     for (const d of this.stemmer.keys()) {
-      this.D += (this.D ? "|" : "") + d;
+      this.C += (this.C ? "|" : "") + d;
     }
   }
   return this;
 };
-w.addStemmer = function(a, c) {
+x.addStemmer = function(a, c) {
   this.stemmer || (this.stemmer = new Map());
   this.stemmer.set(a, c);
-  this.D += (this.D ? "|" : "") + a;
+  this.C += (this.C ? "|" : "") + a;
   this.N = null;
-  this.cache && K(this);
+  this.cache && J(this);
   return this;
 };
-w.addFilter = function(a) {
+x.addFilter = function(a) {
   "function" === typeof a ? this.filter = a : (this.filter || (this.filter = new Set()), this.filter.add(a));
-  this.cache && K(this);
+  this.cache && J(this);
   return this;
 };
-w.addMapper = function(a, c) {
+x.addMapper = function(a, c) {
   if ("object" === typeof a) {
     return this.addReplacer(a, c);
   }
@@ -169,10 +169,10 @@ w.addMapper = function(a, c) {
   }
   this.mapper || (this.mapper = new Map());
   this.mapper.set(a, c);
-  this.cache && K(this);
+  this.cache && J(this);
   return this;
 };
-w.addMatcher = function(a, c) {
+x.addMatcher = function(a, c) {
   if ("object" === typeof a) {
     return this.addReplacer(a, c);
   }
@@ -183,26 +183,26 @@ w.addMatcher = function(a, c) {
   this.matcher.set(a, c);
   this.h += (this.h ? "|" : "") + a;
   this.M = null;
-  this.cache && K(this);
+  this.cache && J(this);
   return this;
 };
-w.addReplacer = function(a, c) {
+x.addReplacer = function(a, c) {
   if ("string" === typeof a) {
     return this.addMatcher(a, c);
   }
   this.replacer || (this.replacer = []);
   this.replacer.push(a, c);
-  this.cache && K(this);
+  this.cache && J(this);
   return this;
 };
-w.encode = function(a) {
+x.encode = function(a) {
   if (this.cache && a.length <= this.K) {
     if (this.H) {
       if (this.F.has(a)) {
         return this.F.get(a);
       }
     } else {
-      this.H = setTimeout(K, 50, this);
+      this.H = setTimeout(J, 50, this);
     }
   }
   this.normalize && ("function" === typeof this.normalize ? a = this.normalize(a) : a = fa ? a.normalize("NFKD").replace(fa, "").toLowerCase() : a.toLowerCase());
@@ -224,14 +224,14 @@ w.encode = function(a) {
                 continue;
               }
             } else {
-              this.H = setTimeout(K, 50, this);
+              this.H = setTimeout(J, 50, this);
             }
           }
-          this.stemmer && 2 < g.length && (this.N || (this.N = new RegExp("(?!^)(" + this.D + ")$")), g = g.replace(this.N, h => this.stemmer.get(h)));
+          this.stemmer && 2 < g.length && (this.N || (this.N = new RegExp("(?!^)(" + this.C + ")$")), g = g.replace(this.N, h => this.stemmer.get(h)));
           if (g && (this.mapper || this.dedupe && 1 < g.length)) {
             d = "";
-            for (let h = 0, l = "", m, n; h < g.length; h++) {
-              m = g.charAt(h), m === l && this.dedupe || ((n = this.mapper && this.mapper.get(m)) || "" === n ? n === l && this.dedupe || !(l = n) || (d += n) : d += l = m);
+            for (let h = 0, l = "", n, m; h < g.length; h++) {
+              n = g.charAt(h), n === l && this.dedupe || ((m = this.mapper && this.mapper.get(n)) || "" === m ? m === l && this.dedupe || !(l = m) || (d += m) : d += l = n);
             }
             g = d;
           }
@@ -251,12 +251,12 @@ w.encode = function(a) {
   this.cache && a.length <= this.K && (this.F.set(a, b), this.F.size > this.R && (this.F.clear(), this.K = this.K / 1.1 | 0));
   return b;
 };
-function K(a) {
+function J(a) {
   a.H = null;
   a.F.clear();
   a.G.clear();
 }
-;let L, M;
+;let K, L;
 async function ha(a) {
   a = a.data;
   var c = a.task;
@@ -264,25 +264,25 @@ async function ha(a) {
   let e = a.args;
   switch(c) {
     case "init":
-      M = a.options || {};
-      (c = a.factory) ? (Function("return " + c)()(self), L = new self.FlexSearch.Index(M), delete self.FlexSearch) : L = new N(M);
+      L = a.options || {};
+      (c = a.factory) ? (Function("return " + c)()(self), K = new self.FlexSearch.Index(L), delete self.FlexSearch) : K = new M(L);
       postMessage({id:b});
       break;
     default:
       let d;
       if ("export" === c) {
-        if (!M.export || "function" !== typeof M.export) {
+        if (!L.export || "function" !== typeof L.export) {
           throw Error('Either no extern configuration provided for the Worker-Index or no method was defined on the config property "export".');
         }
-        e[1] ? (e[0] = M.export, e[2] = 0, e[3] = 1) : e = null;
+        e[1] ? (e[0] = L.export, e[2] = 0, e[3] = 1) : e = null;
       }
       if ("import" === c) {
-        if (!M.import || "function" !== typeof M.import) {
+        if (!L.import || "function" !== typeof L.import) {
           throw Error('Either no extern configuration provided for the Worker-Index or no method was defined on the config property "import".');
         }
-        e[0] && (a = await M.import.call(L, e[0]), L.import(e[0], a));
+        e[0] && (a = await L.import.call(K, e[0]), K.import(e[0], a));
       } else {
-        (d = e && L[c].apply(L, e)) && d.then && (d = await d);
+        (d = e && K[c].apply(K, e)) && d.then && (d = await d);
       }
       postMessage("search" === c ? {id:b, msg:d} : {id:b});
   }
@@ -324,11 +324,11 @@ function S(a = {}) {
   function c(g) {
     function k(h) {
       h = h.data || h;
-      const l = h.id, m = l && d.h[l];
-      m && (m(h.msg), delete d.h[l]);
+      const l = h.id, n = l && d.h[l];
+      n && (n(h.msg), delete d.h[l]);
     }
     this.worker = g;
-    this.h = C();
+    this.h = B();
     if (this.worker) {
       e ? this.worker.on("message", k) : this.worker.onmessage = k;
       if (a.config) {
@@ -464,20 +464,20 @@ function ua(a, c) {
   return b;
 }
 ;U.prototype.add = function(a, c, b) {
-  H(a) && (c = a, a = I(c, this.key));
+  G(a) && (c = a, a = H(c, this.key));
   if (c && (a || 0 === a)) {
     if (!b && this.reg.has(a)) {
       return this.update(a, c);
     }
     for (let k = 0, h; k < this.field.length; k++) {
-      h = this.C[k];
+      h = this.D[k];
       var e = this.index.get(this.field[k]);
       if ("function" === typeof h) {
         var d = h(c);
         d && e.add(a, d, !1, !0);
       } else {
         if (d = h.I, !d || d(c)) {
-          h.constructor === String ? h = ["" + h] : D(h) && (h = [h]), va(c, h, this.J, 0, e, a, h[0], b);
+          h.constructor === String ? h = ["" + h] : C(h) && (h = [h]), va(c, h, this.J, 0, e, a, h[0], b);
         }
       }
     }
@@ -485,7 +485,7 @@ function ua(a, c) {
       for (e = 0; e < this.B.length; e++) {
         var f = this.B[e], g = this.T[e];
         d = this.tag.get(g);
-        let k = C();
+        let k = B();
         if ("function" === typeof f) {
           if (f = f(c), !f) {
             continue;
@@ -496,12 +496,12 @@ function ua(a, c) {
             continue;
           }
           f.constructor === String && (f = "" + f);
-          f = I(c, f);
+          f = H(c, f);
         }
         if (d && f) {
-          D(f) && (f = [f]);
-          for (let h = 0, l, m; h < f.length; h++) {
-            l = f[h], k[l] || (k[l] = 1, (g = d.get(l)) ? m = g : d.set(l, m = []), b && m.includes(a) || (m.push(a), this.fastupdate && ((g = this.reg.get(a)) ? g.push(m) : this.reg.set(a, [m]))));
+          C(f) && (f = [f]);
+          for (let h = 0, l, n; h < f.length; h++) {
+            l = f[h], k[l] || (k[l] = 1, (g = d.get(l)) ? n = g : d.set(l, n = []), b && n.includes(a) || (n.push(a), this.fastupdate && ((g = this.reg.get(a)) ? g.push(n) : this.reg.set(a, [n]))));
           }
         } else {
           d || console.warn("Tag '" + g + "' was not found");
@@ -511,24 +511,24 @@ function ua(a, c) {
     if (this.store && (!b || !this.store.has(a))) {
       let k;
       if (this.A) {
-        k = C();
+        k = B();
         for (let h = 0, l; h < this.A.length; h++) {
           l = this.A[h];
           if ((b = l.I) && !b(c)) {
             continue;
           }
-          let m;
+          let n;
           if ("function" === typeof l) {
-            m = l(c);
-            if (!m) {
+            n = l(c);
+            if (!n) {
               continue;
             }
             l = [l.U];
-          } else if (D(l) || l.constructor === String) {
+          } else if (C(l) || l.constructor === String) {
             k[l] = c[l];
             continue;
           }
-          wa(c, k, l, 0, l[0], m);
+          wa(c, k, l, 0, l[0], n);
         }
       }
       this.store.set(a, k || c);
@@ -546,7 +546,7 @@ function wa(a, c, b, e, d, f) {
         wa(a, c, b, e, d);
       }
     } else {
-      c = c[d] || (c[d] = C()), d = b[++e], wa(a, c, b, e, d);
+      c = c[d] || (c[d] = B()), d = b[++e], wa(a, c, b, e, d);
     }
   }
 }
@@ -577,12 +577,12 @@ function va(a, c, b, e, d, f, g, k) {
 ;function xa(a, c, b, e, d) {
   const f = a.length;
   let g = [], k, h;
-  k = C();
-  for (let l = 0, m, n, v, p; l < c; l++) {
+  k = B();
+  for (let l = 0, n, m, r, p; l < c; l++) {
     for (let q = 0; q < f; q++) {
-      if (v = a[q], l < v.length && (m = v[l])) {
-        for (let u = 0; u < m.length; u++) {
-          if (n = m[u], (h = k[n]) ? k[n]++ : (h = 0, k[n] = 1), p = g[h] || (g[h] = []), p.push(n), b && h === f - 1 && p.length - e === b) {
+      if (r = a[q], l < r.length && (n = r[l])) {
+        for (let t = 0; t < n.length; t++) {
+          if (m = n[t], (h = k[m]) ? k[m]++ : (h = 0, k[m] = 1), p = g[h] || (g[h] = []), p.push(m), b && h === f - 1 && p.length - e === b) {
             return e ? p.slice(e) : p;
           }
         }
@@ -607,7 +607,7 @@ function va(a, c, b, e, d, f, g, k) {
   return g;
 }
 function ya(a, c, b) {
-  const e = [], d = C();
+  const e = [], d = B();
   let f;
   var g = a.length;
   let k;
@@ -629,7 +629,7 @@ function ya(a, c, b) {
   return e;
 }
 function za(a, c) {
-  const b = C(), e = [];
+  const b = B(), e = [];
   for (let d = 0, f; d < c.length; d++) {
     f = c[d];
     for (let g = 0; g < f.length; g++) {
@@ -675,8 +675,8 @@ function za(a, c) {
 ;function Ba(a, c, b) {
   var e = b[0];
   if (e.then) {
-    return Promise.all(b).then(function(m) {
-      return a[c].apply(a, m);
+    return Promise.all(b).then(function(n) {
+      return a[c].apply(a, n);
     });
   }
   if (e[0] && e[0].index) {
@@ -684,32 +684,32 @@ function za(a, c) {
   }
   e = [];
   let d = [], f = 0, g = 0, k, h, l;
-  for (let m = 0, n; m < b.length; m++) {
-    if (n = b[m]) {
-      let v;
-      if (n.constructor === W) {
-        v = n.result;
-      } else if (n.constructor === Array) {
-        v = n;
+  for (let n = 0, m; n < b.length; n++) {
+    if (m = b[n]) {
+      let r;
+      if (m.constructor === W) {
+        r = m.result;
+      } else if (m.constructor === Array) {
+        r = m;
       } else {
-        if (f = n.limit || 0, g = n.offset || 0, l = n.suggest, h = n.resolve, k = n.enrich && h, n.index) {
-          n.resolve = !1, n.enrich = !1, v = n.index.search(n).result, n.resolve = h, n.enrich = k;
-        } else if (n.and) {
-          v = a.and(n.and);
-        } else if (n.or) {
-          v = a.or(n.or);
-        } else if (n.xor) {
-          v = a.xor(n.xor);
-        } else if (n.not) {
-          v = a.not(n.not);
+        if (f = m.limit || 0, g = m.offset || 0, l = m.suggest, h = m.resolve, k = m.enrich && h, m.index) {
+          m.resolve = !1, m.enrich = !1, r = m.index.search(m).result, m.resolve = h, m.enrich = k;
+        } else if (m.and) {
+          r = a.and(m.and);
+        } else if (m.or) {
+          r = a.or(m.or);
+        } else if (m.xor) {
+          r = a.xor(m.xor);
+        } else if (m.not) {
+          r = a.not(m.not);
         } else {
           continue;
         }
       }
-      if (v.then) {
-        d.push(v);
-      } else if (v.length) {
-        e[m] = v;
+      if (r.then) {
+        d.push(r);
+      } else if (r.length) {
+        e[n] = r;
       } else if (!l && ("and" === c || "xor" === c)) {
         e = [];
         break;
@@ -743,8 +743,8 @@ function Ca(a, c, b, e, d, f) {
     f && (a = !!f.suggest, d = f.resolve, c = f.limit, b = f.offset, e = f.enrich && d);
   }
   if (a) {
-    const {O:f, P:g, limit:k, offset:h, enrich:l, resolve:m, suggest:n} = Ba(this, "and", arguments);
-    return Da.call(this, f, g, k, h, l, m, n);
+    const {O:f, P:g, limit:k, offset:h, enrich:l, resolve:n, suggest:m} = Ba(this, "and", arguments);
+    return Da.call(this, f, g, k, h, l, n, m);
   }
   return d ? this.resolve(c, b, e) : this;
 };
@@ -753,8 +753,8 @@ function Da(a, c, b, e, d, f, g) {
     const k = this;
     return Promise.all(c).then(function(h) {
       a = [];
-      for (let l = 0, m; l < h.length; l++) {
-        (m = h[l]).length && (a[l] = m);
+      for (let l = 0, n; l < h.length; l++) {
+        (n = h[l]).length && (a[l] = n);
       }
       return Da.call(k, a, [], b, e, d, f, g);
     });
@@ -782,8 +782,8 @@ function Ea(a, c, b, e, d, f, g) {
     const k = this;
     return Promise.all(c).then(function(h) {
       a = [];
-      for (let l = 0, m; l < h.length; l++) {
-        (m = h[l]).length && (a[l] = m);
+      for (let l = 0, n; l < h.length; l++) {
+        (n = h[l]).length && (a[l] = n);
       }
       return Ea.call(k, a, [], b, e, d, f, g);
     });
@@ -800,24 +800,24 @@ function Ea(a, c, b, e, d, f, g) {
   return f ? this.resolve(b, e, d) : this;
 }
 function Fa(a, c, b, e, d) {
-  const f = [], g = C();
+  const f = [], g = B();
   let k = 0;
   for (let h = 0, l; h < a.length; h++) {
     if (l = a[h]) {
       k < l.length && (k = l.length);
-      for (let m = 0, n; m < l.length; m++) {
-        if (n = l[m]) {
-          for (let v = 0, p; v < n.length; v++) {
-            p = n[v], g[p] = g[p] ? 2 : 1;
+      for (let n = 0, m; n < l.length; n++) {
+        if (m = l[n]) {
+          for (let r = 0, p; r < m.length; r++) {
+            p = m[r], g[p] = g[p] ? 2 : 1;
           }
         }
       }
     }
   }
-  for (let h = 0, l, m = 0; h < k; h++) {
-    for (let n = 0, v; n < a.length; n++) {
-      if (v = a[n]) {
-        if (l = v[h]) {
+  for (let h = 0, l, n = 0; h < k; h++) {
+    for (let m = 0, r; m < a.length; m++) {
+      if (r = a[m]) {
+        if (l = r[h]) {
           for (let p = 0, q; p < l.length; p++) {
             if (q = l[p], 1 === g[q]) {
               if (b) {
@@ -828,10 +828,10 @@ function Fa(a, c, b, e, d) {
                     return f;
                   }
                 } else {
-                  const u = h + (n ? d : 0);
-                  f[u] || (f[u] = []);
-                  f[u].push(q);
-                  if (++m === c) {
+                  const t = h + (m ? d : 0);
+                  f[t] || (f[t] = []);
+                  f[t].push(q);
+                  if (++n === c) {
                     return f;
                   }
                 }
@@ -853,8 +853,8 @@ function Ga(a, c, b, e, d, f, g) {
     const k = this;
     return Promise.all(c).then(function(h) {
       a = [];
-      for (let l = 0, m; l < h.length; l++) {
-        (m = h[l]).length && (a[l] = m);
+      for (let l = 0, n; l < h.length; l++) {
+        (n = h[l]).length && (a[l] = n);
       }
       return Ga.call(k, a, [], b, e, d, f, g);
     });
@@ -943,14 +943,14 @@ W.prototype.resolve = function(a, c, b) {
   this.result = this.index = null;
   return e.length ? ("object" === typeof a && (b = a.enrich, c = a.offset, a = a.limit), Aa.call(d, e, a || 100, c, b)) : e;
 };
-C();
+B();
 U.prototype.search = function(a, c, b, e) {
-  b || (!c && H(a) ? (b = a, a = "") : H(c) && (b = c, c = 0));
+  b || (!c && G(a) ? (b = a, a = "") : G(c) && (b = c, c = 0));
   let d = [];
   var f = [];
   let g;
   let k, h, l;
-  let m = 0, n = !0, v;
+  let n = 0, m = !0, r;
   if (b) {
     b.constructor === Array && (b = {index:b});
     a = b.query || a;
@@ -959,56 +959,56 @@ U.prototype.search = function(a, c, b, e) {
     h = p || b.field || (h = b.index) && (h.index ? null : h);
     l = this.tag && b.tag;
     k = b.suggest;
-    n = !0;
-    this.store && b.enrich && !n && console.warn("Enrich results can only be done on a final resolver task or when calling .resolve({ enrich: true })");
-    v = (g = this.store && b.enrich && n) && b.highlight;
+    m = !0;
+    this.store && b.enrich && !m && console.warn("Enrich results can only be done on a final resolver task or when calling .resolve({ enrich: true })");
+    r = (g = this.store && b.enrich && m) && b.highlight;
     c = b.limit || c;
-    var u = b.offset || 0;
+    var t = b.offset || 0;
     c || (c = 100);
     if (l) {
       l.constructor !== Array && (l = [l]);
-      var t = [];
-      for (let y = 0, r; y < l.length; y++) {
-        r = l[y];
-        if (D(r)) {
+      var u = [];
+      for (let z = 0, v; z < l.length; z++) {
+        v = l[z];
+        if (C(v)) {
           throw Error("A tag option can't be a string, instead it needs a { field: tag } format.");
         }
-        if (r.field && r.tag) {
-          var x = r.tag;
-          if (x.constructor === Array) {
-            for (var z = 0; z < x.length; z++) {
-              t.push(r.field, x[z]);
+        if (v.field && v.tag) {
+          var w = v.tag;
+          if (w.constructor === Array) {
+            for (var y = 0; y < w.length; y++) {
+              u.push(v.field, w[y]);
             }
           } else {
-            t.push(r.field, x);
+            u.push(v.field, w);
           }
         } else {
-          x = Object.keys(r);
-          for (let E = 0, F, A; E < x.length; E++) {
-            if (F = x[E], A = r[F], A.constructor === Array) {
-              for (z = 0; z < A.length; z++) {
-                t.push(F, A[z]);
+          w = Object.keys(v);
+          for (let D = 0, E, F; D < w.length; D++) {
+            if (E = w[D], F = v[E], F.constructor === Array) {
+              for (y = 0; y < F.length; y++) {
+                u.push(E, F[y]);
               }
             } else {
-              t.push(F, A);
+              u.push(E, F);
             }
           }
         }
       }
-      if (!t.length) {
+      if (!u.length) {
         throw Error("Your tag definition within the search options is probably wrong. No valid tags found.");
       }
-      l = t;
+      l = u;
       if (!a) {
         f = [];
-        if (t.length) {
-          for (p = 0; p < t.length; p += 2) {
-            q = Ia.call(this, t[p], t[p + 1], c, u, g), d.push({field:t[p], tag:t[p + 1], result:q});
+        if (u.length) {
+          for (p = 0; p < u.length; p += 2) {
+            q = Ia.call(this, u[p], u[p + 1], c, t, g), d.push({field:u[p], tag:u[p + 1], result:q});
           }
         }
-        return f.length ? Promise.all(f).then(function(y) {
-          for (let r = 0; r < y.length; r++) {
-            d[r].result = y[r];
+        return f.length ? Promise.all(f).then(function(z) {
+          for (let v = 0; v < z.length; v++) {
+            d[v].result = z[v];
           }
           return d;
         }) : d;
@@ -1017,126 +1017,134 @@ U.prototype.search = function(a, c, b, e) {
     h && h.constructor !== Array && (h = [h]);
   }
   h || (h = this.field);
-  t = !e && (this.worker || this.db) && [];
-  for (let y = 0, r, E, F; y < h.length; y++) {
-    E = h[y];
-    let A;
-    D(E) || (A = E, E = A.field, a = A.query || a, c = A.limit || c, u = A.offset || u, k = A.suggest || k, g = this.store && (A.enrich || g));
+  u = !e && (this.worker || this.db) && [];
+  for (let z = 0, v, D, E; z < h.length; z++) {
+    D = h[z];
+    let F;
+    C(D) || (F = D, D = F.field, a = F.query || a, c = F.limit || c, t = F.offset || t, k = F.suggest || k, g = this.store && (F.enrich || g));
     if (e) {
-      r = e[y];
+      v = e[z];
     } else {
-      if (x = A || b, z = this.index.get(E), l && (x.enrich = !1), t) {
-        t[y] = z.search(a, c, x);
-        x && g && (x.enrich = g);
+      if (w = F || b, y = this.index.get(D), l && (w.enrich = !1), u) {
+        u[z] = y.search(a, c, w);
+        w && g && (w.enrich = g);
         continue;
       } else {
-        r = z.search(a, c, x), x && g && (x.enrich = g);
+        v = y.search(a, c, w), w && g && (w.enrich = g);
       }
     }
-    F = r && (n ? r.length : r.result.length);
-    if (l && F) {
-      x = [];
-      z = 0;
-      for (let G = 0, O, Va; G < l.length; G += 2) {
-        O = this.tag.get(l[G]);
+    E = v && (m ? v.length : v.result.length);
+    if (l && E) {
+      w = [];
+      y = 0;
+      for (let N = 0, O, Wa; N < l.length; N += 2) {
+        O = this.tag.get(l[N]);
         if (!O) {
-          if (console.warn("Tag '" + l[G] + ":" + l[G + 1] + "' will be skipped because there is no field '" + l[G] + "'."), k) {
+          if (console.warn("Tag '" + l[N] + ":" + l[N + 1] + "' will be skipped because there is no field '" + l[N] + "'."), k) {
             continue;
           } else {
-            return n ? d : new W(d);
+            return m ? d : new W(d);
           }
         }
-        if (Va = (O = O && O.get(l[G + 1])) && O.length) {
-          z++, x.push(O);
+        if (Wa = (O = O && O.get(l[N + 1])) && O.length) {
+          y++, w.push(O);
         } else if (!k) {
-          return n ? d : new W(d);
+          return m ? d : new W(d);
         }
       }
-      if (z) {
-        r = za(r, x);
-        F = r.length;
-        if (!F && !k) {
-          return n ? r : new W(r);
+      if (y) {
+        v = za(v, w);
+        E = v.length;
+        if (!E && !k) {
+          return m ? v : new W(v);
         }
-        z--;
+        y--;
       }
     }
-    if (F) {
-      f[m] = E, d.push(r), m++;
+    if (E) {
+      f[n] = D, d.push(v), n++;
     } else if (1 === h.length) {
-      return n ? d : new W(d);
+      return m ? d : new W(d);
     }
   }
-  if (t) {
-    const y = this;
-    return Promise.all(t).then(function(r) {
-      return r.length ? y.search(a, c, b, r) : r;
+  if (u) {
+    const z = this;
+    return Promise.all(u).then(function(v) {
+      return v.length ? z.search(a, c, b, v) : v;
     });
   }
-  if (!m) {
-    return n ? d : new W(d);
+  if (!n) {
+    return m ? d : new W(d);
   }
   if (p && (!g || !this.store)) {
     return d[0];
   }
-  t = [];
-  for (u = 0; u < f.length; u++) {
-    e = d[u];
+  u = [];
+  for (t = 0; t < f.length; t++) {
+    e = d[t];
     g && e.length && "undefined" === typeof e[0].doc && (e = V.call(this, e));
     if (p) {
-      return n ? e : new W(e);
+      return m ? r ? Ja(a, e, this.index, p, r) : e : new W(e);
     }
-    d[u] = {field:f[u], result:e};
+    d[t] = {field:f[t], result:e};
   }
-  return q ? Ja(d) : v ? Ka(d, a, this.index, this.field, this.C, v) : d;
+  return q ? Ka(d) : r ? Ja(a, d, this.index, p, r) : d;
 };
-function Ka(a, c, b, e, d, f) {
-  let g, k, h;
-  for (let l = 0, m, n, v, p; l < a.length; l++) {
-    m = a[l].field;
-    if (!m) {
-      continue;
+function Ja(a, c, b, e, d) {
+  let f, g;
+  for (let h = 0, l, n, m; h < c.length; h++) {
+    let r;
+    if (e) {
+      r = c, m = e;
+    } else {
+      var k = c[h];
+      m = k.field;
+      if (!m) {
+        continue;
+      }
+      r = k.result;
     }
-    let q = a[l].result;
-    v = b.get(m);
-    n = v.encoder;
-    h = v.tokenize;
-    p = d[e.indexOf(m)];
-    n !== g && (g = n, k = g.encode(c));
-    for (let u = 0; u < q.length; u++) {
-      let t = "", x = I(q[u].doc, p).split(/\s+/);
-      for (let z = 0, y, r; z < x.length; z++) {
-        y = x[z];
-        r = n.encode(y);
-        r = 1 < r.length ? r.join(" ") : r[0];
-        let E;
-        if (r && y) {
-          for (let F = 0, A; F < k.length; F++) {
-            if (A = k[F], "strict" === h) {
-              if (r === A) {
-                t += (t ? " " : "") + f.replace("$1", y);
-                E = !0;
+    n = b.get(m);
+    l = n.encoder;
+    k = n.tokenize;
+    l !== f && (f = l, g = f.encode(a));
+    for (let p = 0; p < r.length; p++) {
+      let q = "", t = H(r[p].doc, m).split(/\s+/);
+      for (let u = 0, w, y; u < t.length; u++) {
+        w = t[u];
+        y = l.encode(w);
+        y = 1 < y.length ? y.join(" ") : y[0];
+        let z;
+        if (y && w) {
+          for (let v = 0, D; v < g.length; v++) {
+            if (D = g[v], "strict" === k) {
+              if (y === D) {
+                q += (q ? " " : "") + d.replace("$1", w);
+                z = !0;
                 break;
               }
             } else {
-              const G = r.indexOf(A);
-              if (-1 < G) {
-                t += (t ? " " : "") + y.substring(0, G) + f.replace("$1", y.substring(G, A.length)) + y.substring(G + A.length);
-                E = !0;
+              const E = y.indexOf(D);
+              if (-1 < E) {
+                q += (q ? " " : "") + w.substring(0, E) + d.replace("$1", w.substring(E, D.length)) + w.substring(E + D.length);
+                z = !0;
                 break;
               }
             }
           }
         }
-        E || (t += (t ? " " : "") + x[z]);
+        z || (q += (q ? " " : "") + t[u]);
       }
-      q[u].highlight = t;
+      r[p].highlight = q;
+    }
+    if (e) {
+      break;
     }
   }
-  return a;
+  return c;
 }
-function Ja(a) {
-  const c = [], b = C();
+function Ka(a) {
+  const c = [], b = B();
   for (let e = 0, d, f; e < a.length; e++) {
     d = a[e];
     f = d.result;
@@ -1175,7 +1183,7 @@ function V(a) {
   }
   const c = a.document || a.doc || a;
   var b;
-  this.C = [];
+  this.D = [];
   this.field = [];
   this.J = [];
   this.key = (b = c.key || c.id) && La(b, this.J) || "id";
@@ -1187,13 +1195,13 @@ function V(a) {
   this.priority = a.priority || 4;
   b = new Map();
   let e = c.index || c.field || c;
-  D(e) && (e = [e]);
+  C(e) && (e = [e]);
   for (let d = 0, f, g; d < e.length; d++) {
-    f = e[d], D(f) || (g = f, f = f.field), g = H(g) ? Object.assign({}, a, g) : a, b.set(f, new N(g, this.reg)), g.custom ? this.C[d] = g.custom : (this.C[d] = La(f, this.J), g.filter && ("string" === typeof this.C[d] && (this.C[d] = new String(this.C[d])), this.C[d].I = g.filter)), this.field[d] = f;
+    f = e[d], C(f) || (g = f, f = f.field), g = G(g) ? Object.assign({}, a, g) : a, b.set(f, new M(g, this.reg)), g.custom ? this.D[d] = g.custom : (this.D[d] = La(f, this.J), g.filter && ("string" === typeof this.D[d] && (this.D[d] = new String(this.D[d])), this.D[d].I = g.filter)), this.field[d] = f;
   }
   if (this.A) {
     a = c.store;
-    D(a) && (a = [a]);
+    C(a) && (a = [a]);
     for (let d = 0, f, g; d < a.length; d++) {
       f = a[d], g = f.field || f, f.custom ? (this.A[d] = f.custom, f.custom.U = g) : (this.A[d] = La(g, this.J), f.filter && ("string" === typeof this.A[d] && (this.A[d] = new String(this.A[d])), this.A[d].I = f.filter));
     }
@@ -1227,15 +1235,15 @@ function La(a, c) {
   e < b.length && (b.length = e);
   return 1 < e ? b : b[0];
 }
-w = U.prototype;
-w.append = function(a, c) {
+x = U.prototype;
+x.append = function(a, c) {
   return this.add(a, c, !0);
 };
-w.update = function(a, c) {
+x.update = function(a, c) {
   return this.remove(a).add(a, c);
 };
-w.remove = function(a) {
-  H(a) && (a = I(a, this.key));
+x.remove = function(a) {
+  G(a) && (a = H(a, this.key));
   for (var c of this.index.values()) {
     c.remove(a, !0);
   }
@@ -1255,7 +1263,7 @@ w.remove = function(a) {
   this.cache && this.cache.remove(a);
   return this;
 };
-w.clear = function() {
+x.clear = function() {
   const a = [];
   for (const c of this.index.values()) {
     const b = c.clear();
@@ -1270,25 +1278,25 @@ w.clear = function() {
   this.cache && this.cache.clear();
   return a.length ? Promise.all(a) : this;
 };
-w.contain = function(a) {
+x.contain = function(a) {
   return this.reg.has(a);
 };
-w.cleanup = function() {
+x.cleanup = function() {
   for (const a of this.index.values()) {
     a.cleanup();
   }
   return this;
 };
-w.get = function(a) {
+x.get = function(a) {
   return this.store.get(a) || null;
 };
-w.set = function(a, c) {
-  "object" === typeof a && (c = a, a = I(c, this.key));
+x.set = function(a, c) {
+  "object" === typeof a && (c = a, a = H(c, this.key));
   this.store.set(a, c);
   return this;
 };
-w.searchCache = Ma;
-w.export = function(a, c, b = 0, e = 0) {
+x.searchCache = Ma;
+x.export = function(a, c, b = 0, e = 0) {
   if (b < this.field.length) {
     const g = this.field[b];
     if ((c = this.index.get(g).export(a, g, b, e = 1)) && c.then) {
@@ -1321,7 +1329,7 @@ w.export = function(a, c, b = 0, e = 0) {
   }
   return ta.call(this, a, c, d, f, b, e);
 };
-w.import = function(a, c) {
+x.import = function(a, c) {
   var b = a.split(".");
   "json" === b[b.length - 1] && b.pop();
   a = 2 < b.length ? b[0] : "";
@@ -1403,7 +1411,7 @@ var Ta = {Exact:Na, Default:Oa, Normalize:Oa, LatinBalance:{mapper:Pa}, LatinAdv
     a[b] = e;
   }
 }}, CJK:{split:""}, LatinExact:Na, LatinDefault:Oa, LatinSimple:Oa};
-N.prototype.remove = function(a, c) {
+M.prototype.remove = function(a, c) {
   const b = this.reg.size && (this.fastupdate ? this.reg.get(a) : this.reg.has(a));
   if (b) {
     if (this.fastupdate) {
@@ -1453,28 +1461,28 @@ function Y(a, c) {
   return b;
 }
 ;const Ua = {memory:{resolution:1}, performance:{resolution:3, fastupdate:!0, context:{depth:1, resolution:1}}, match:{tokenize:"forward"}, score:{resolution:9, context:{depth:2, resolution:3}}};
-N.prototype.add = function(a, c, b, e) {
+M.prototype.add = function(a, c, b, e) {
   if (c && (a || 0 === a)) {
     if (!e && !b && this.reg.has(a)) {
       return this.update(a, c);
     }
     c = this.encoder.encode(c);
     if (e = c.length) {
-      const l = C(), m = C(), n = this.depth, v = this.resolution;
+      const l = B(), n = B(), m = this.depth, r = this.resolution;
       for (let p = 0; p < e; p++) {
         let q = c[this.rtl ? e - 1 - p : p];
         var d = q.length;
-        if (d && (n || !m[q])) {
-          var f = this.score ? this.score(c, q, p, null, 0) : Wa(v, e, p), g = "";
+        if (d && (m || !n[q])) {
+          var f = this.score ? this.score(c, q, p, null, 0) : Va(r, e, p), g = "";
           switch(this.tokenize) {
             case "full":
               if (2 < d) {
-                for (let u = 0, t; u < d; u++) {
-                  for (f = d; f > u; f--) {
-                    g = q.substring(u, f);
-                    t = this.rtl ? d - 1 - u : u;
-                    var k = this.score ? this.score(c, q, p, g, t) : Wa(v, e, p, d, t);
-                    Z(this, m, g, k, a, b);
+                for (let t = 0, u; t < d; t++) {
+                  for (f = d; f > t; f--) {
+                    g = q.substring(t, f);
+                    u = this.rtl ? d - 1 - t : t;
+                    var k = this.score ? this.score(c, q, p, g, u) : Va(r, e, p, d, u);
+                    Z(this, n, g, k, a, b);
                   }
                 }
                 break;
@@ -1484,25 +1492,25 @@ N.prototype.add = function(a, c, b, e) {
               if (1 < d) {
                 for (k = d - 1; 0 < k; k--) {
                   g = q[this.rtl ? d - 1 - k : k] + g;
-                  var h = this.score ? this.score(c, q, p, g, k) : Wa(v, e, p, d, k);
-                  Z(this, m, g, h, a, b);
+                  var h = this.score ? this.score(c, q, p, g, k) : Va(r, e, p, d, k);
+                  Z(this, n, g, h, a, b);
                 }
                 g = "";
               }
             case "forward":
               if (1 < d) {
                 for (k = 0; k < d; k++) {
-                  g += q[this.rtl ? d - 1 - k : k], Z(this, m, g, f, a, b);
+                  g += q[this.rtl ? d - 1 - k : k], Z(this, n, g, f, a, b);
                 }
                 break;
               }
             default:
-              if (Z(this, m, q, f, a, b), n && 1 < e && p < e - 1) {
-                for (d = C(), g = this.S, f = q, k = Math.min(n + 1, this.rtl ? p + 1 : e - p), d[f] = 1, h = 1; h < k; h++) {
+              if (Z(this, n, q, f, a, b), m && 1 < e && p < e - 1) {
+                for (d = B(), g = this.S, f = q, k = Math.min(m + 1, this.rtl ? p + 1 : e - p), d[f] = 1, h = 1; h < k; h++) {
                   if ((q = c[this.rtl ? e - 1 - p - h : p + h]) && !d[q]) {
                     d[q] = 1;
-                    const u = this.score ? this.score(c, f, p, q, h - 1) : Wa(g + (e / 2 > g ? 0 : 1), e, p, k - 1, h - 1), t = this.bidirectional && q > f;
-                    Z(this, l, t ? f : q, u, a, b, t ? q : f);
+                    const t = this.score ? this.score(c, f, p, q, h - 1) : Va(g + (e / 2 > g ? 0 : 1), e, p, k - 1, h - 1), u = this.bidirectional && q > f;
+                    Z(this, l, u ? f : q, t, a, b, u ? q : f);
                   }
                 }
               }
@@ -1517,13 +1525,13 @@ N.prototype.add = function(a, c, b, e) {
 function Z(a, c, b, e, d, f, g) {
   let k = g ? a.ctx : a.map, h;
   if (!c[b] || g && !(h = c[b])[g]) {
-    g ? (c = h || (c[b] = C()), c[g] = 1, (h = k.get(g)) ? k = h : k.set(g, k = new Map())) : c[b] = 1, (h = k.get(b)) ? k = h : k.set(b, k = []), k = k[e] || (k[e] = []), f && k.includes(d) || (k.push(d), a.fastupdate && ((c = a.reg.get(d)) ? c.push(k) : a.reg.set(d, [k])));
+    g ? (c = h || (c[b] = B()), c[g] = 1, (h = k.get(g)) ? k = h : k.set(g, k = new Map())) : c[b] = 1, (h = k.get(b)) ? k = h : k.set(b, k = []), k = k[e] || (k[e] = []), f && k.includes(d) || (k.push(d), a.fastupdate && ((c = a.reg.get(d)) ? c.push(k) : a.reg.set(d, [k])));
   }
 }
-function Wa(a, c, b, e, d) {
+function Va(a, c, b, e, d) {
   return b && 1 < a ? c + (e || 0) <= a ? b + (d || 0) : (a - 1) / (c + (e || 0)) * (b + (d || 0)) + 1 | 0 : 0;
 }
-;N.prototype.search = function(a, c, b) {
+;M.prototype.search = function(a, c, b) {
   b || (c || "object" !== typeof a ? "object" === typeof c && (b = c, c = 0) : (b = a, a = ""));
   var e = [], d = 0;
   if (b) {
@@ -1547,59 +1555,59 @@ function Wa(a, c, b, e, d) {
   if (2 === b && f && !g) {
     return g = c, (c = Xa(this, a[1], a[0])) && c.length ? Aa.call(this, c, g, d) : [];
   }
-  k = C();
+  k = B();
   let l = 0;
   if (f) {
-    var m = a[0];
+    var n = a[0];
     l = 1;
   }
-  h || 0 === h || (h = m ? this.S : this.resolution);
-  for (let q, u; l < b; l++) {
-    if ((u = a[l]) && !k[u]) {
-      k[u] = 1;
-      q = Xa(this, u, m);
+  h || 0 === h || (h = n ? this.S : this.resolution);
+  for (let q, t; l < b; l++) {
+    if ((t = a[l]) && !k[t]) {
+      k[t] = 1;
+      q = Xa(this, t, n);
       a: {
         f = q;
-        var n = e, v = g, p = h;
-        let t = [];
+        var m = e, r = g, p = h;
+        let u = [];
         if (f && f.length) {
           if (f.length <= p) {
-            n.push(f);
+            m.push(f);
             q = void 0;
             break a;
           }
-          for (let x = 0, z; x < p; x++) {
-            if (z = f[x]) {
-              t[x] = z;
+          for (let w = 0, y; w < p; w++) {
+            if (y = f[w]) {
+              u[w] = y;
             }
           }
-          if (t.length) {
-            n.push(t);
+          if (u.length) {
+            m.push(u);
             q = void 0;
             break a;
           }
         }
-        q = v ? void 0 : t;
+        q = r ? void 0 : u;
       }
       if (q) {
         e = q;
         break;
       }
-      m && (g && q && e.length || (m = u));
+      n && (g && q && e.length || (n = t));
     }
-    g && m && l === b - 1 && !e.length && (h = this.resolution, m = "", l = -1, k = C());
+    g && n && l === b - 1 && !e.length && (h = this.resolution, n = "", l = -1, k = B());
   }
   a: {
     a = e;
     e = a.length;
-    m = a;
+    n = a;
     if (1 < e) {
-      m = xa(a, h, c, d, g);
+      n = xa(a, h, c, d, g);
     } else if (1 === e) {
       g = Aa.call(null, a[0], c, d);
       break a;
     }
-    g = m;
+    g = n;
   }
   return g;
 };
@@ -1609,19 +1617,19 @@ function Xa(a, c, b) {
   a = b ? (a = a.ctx.get(b)) && a.get(c) : a.map.get(c);
   return a;
 }
-;function N(a, c) {
-  if (!this || this.constructor !== N) {
-    return new N(a);
+;function M(a, c) {
+  if (!this || this.constructor !== M) {
+    return new M(a);
   }
   if (a) {
-    var b = D(a) ? a : a.preset;
+    var b = C(a) ? a : a.preset;
     b && (Ua[b] || console.warn("Preset not found: " + b), a = Object.assign({}, Ua[b], a));
   } else {
     a = {};
   }
   b = a.context;
-  const e = !0 === b ? {depth:1} : b || {}, d = D(a.encoder) ? Ta[a.encoder] : a.encode || a.encoder || {};
-  this.encoder = d.encode ? d : "object" === typeof d ? new J(d) : {encode:d};
+  const e = !0 === b ? {depth:1} : b || {}, d = C(a.encoder) ? Ta[a.encoder] : a.encode || a.encoder || {};
+  this.encoder = d.encode ? d : "object" === typeof d ? new I(d) : {encode:d};
   this.resolution = a.resolution || 9;
   this.tokenize = b = (b = a.tokenize) && "default" !== b && "exact" !== b && b || "strict";
   this.depth = "strict" === b && e.depth || 0;
@@ -1638,25 +1646,25 @@ function Xa(a, c, b) {
   this.cache = (b = a.cache || null) && new X(b);
   this.priority = a.priority || 4;
 }
-w = N.prototype;
-w.clear = function() {
+x = M.prototype;
+x.clear = function() {
   this.map.clear();
   this.ctx.clear();
   this.reg.clear();
   this.cache && this.cache.clear();
   return this;
 };
-w.append = function(a, c) {
+x.append = function(a, c) {
   return this.add(a, c, !0);
 };
-w.contain = function(a) {
+x.contain = function(a) {
   return this.reg.has(a);
 };
-w.update = function(a, c) {
+x.update = function(a, c) {
   const b = this, e = this.remove(a);
   return e && e.then ? e.then(() => b.add(a, c)) : this.add(a, c);
 };
-w.cleanup = function() {
+x.cleanup = function() {
   if (!this.fastupdate) {
     return console.info('Cleanup the index isn\'t required when not using "fastupdate".'), this;
   }
@@ -1664,8 +1672,8 @@ w.cleanup = function() {
   this.depth && Y(this.ctx);
   return this;
 };
-w.searchCache = Ma;
-w.export = function(a, c, b = 0, e = 0) {
+x.searchCache = Ma;
+x.export = function(a, c, b = 0, e = 0) {
   let d, f;
   switch(e) {
     case 0:
@@ -1689,7 +1697,7 @@ w.export = function(a, c, b = 0, e = 0) {
   }
   return ta.call(this, a, c, d, f, b, e);
 };
-w.import = function(a, c) {
+x.import = function(a, c) {
   if (c) {
     switch("string" === typeof c && (c = JSON.parse(c)), a = a.split("."), "json" === a[a.length - 1] && a.pop(), 3 === a.length && a.shift(), a = 1 < a.length ? a[1] : a[0], a) {
       case "reg":
@@ -1704,7 +1712,7 @@ w.import = function(a, c) {
     }
   }
 };
-w.serialize = function(a = !0) {
+x.serialize = function(a = !0) {
   let c = "", b = "", e = "";
   if (this.reg.size) {
     let f;
@@ -1725,8 +1733,8 @@ w.serialize = function(a = !0) {
   }
   return a ? "function inject(index){" + c + b + e + "}" : c + b + e;
 };
-ia(N.prototype);
-C();
-export default {Index:N, Charset:Ta, Encoder:J, Document:U, Worker:null, Resolver:null, IndexedDB:null, Language:{}};
+ia(M.prototype);
+B();
+export default {Index:M, Charset:Ta, Encoder:I, Document:U, Worker:null, Resolver:null, IndexedDB:null, Language:{}};
 
-export const Index=N;export const  Charset=Ta;export const  Encoder=J;export const  Document=U;export const  Worker=null;export const  Resolver=null;export const  IndexedDB=null;export const  Language={};
\ No newline at end of file
+export const Index=M;export const  Charset=Ta;export const  Encoder=I;export const  Document=U;export const  Worker=null;export const  Resolver=null;export const  IndexedDB=null;export const  Language={};
\ No newline at end of file
diff --git a/dist/flexsearch.compact.module.min.js b/dist/flexsearch.compact.module.min.js
index 70c1531..c35cfba 100644
--- a/dist/flexsearch.compact.module.min.js
+++ b/dist/flexsearch.compact.module.min.js
@@ -1,64 +1,64 @@
 /**!
- * FlexSearch.js v0.8.154 (Bundle)
+ * FlexSearch.js v0.8.155 (Bundle)
  * Author and Copyright: Thomas Wilkerling
  * Licence: Apache-2.0
  * Hosted by Nextapps GmbH
  * https://github.com/nextapps-de/flexsearch
  */
-var w;function B(a,c,b){const e=typeof b,d=typeof a;if("undefined"!==e){if("undefined"!==d){if(b){if("function"===d&&e===d)return function(k){return a(b(k))};c=a.constructor;if(c===b.constructor){if(c===Array)return b.concat(a);if(c===Map){var f=new Map(b);for(var g of a)f.set(g[0],g[1]);return f}if(c===Set){g=new Set(b);for(f of a.values())g.add(f);return g}}}return a}return b}return"undefined"===d?c:a}function C(){return Object.create(null)}function D(a){return"string"===typeof a}
-function G(a){return"object"===typeof a}function H(a,c){if(D(c))a=a[c];else for(let b=0;a&&b<c.length;b++)a=a[c[b]];return a}function aa(a){let c=0;for(let b=0,e;b<a.length;b++)(e=a[b])&&c<e.length&&(c=e.length);return c};const ba=/[^\p{L}\p{N}]+/u,ca=/(\d{3})/g,da=/(\D)(\d{3})/g,ea=/(\d{3})(\D)/g,fa=/[\u0300-\u036f]/g;function J(a={}){if(!this||this.constructor!==J)return new J(...arguments);if(arguments.length)for(a=0;a<arguments.length;a++)this.assign(arguments[a]);else this.assign(a)}w=J.prototype;
-w.assign=function(a){this.normalize=B(a.normalize,!0,this.normalize);let c=a.include,b=c||a.exclude||a.split,e;if(b||""===b){if("object"===typeof b&&b.constructor!==RegExp){let d="";e=!c;c||(d+="\\p{Z}");b.letter&&(d+="\\p{L}");b.number&&(d+="\\p{N}",e=!!c);b.symbol&&(d+="\\p{S}");b.punctuation&&(d+="\\p{P}");b.control&&(d+="\\p{C}");if(b=b.char)d+="object"===typeof b?b.join(""):b;try{this.split=new RegExp("["+(c?"^":"")+d+"]+","u")}catch(f){this.split=/\s+/}}else this.split=b,e=!1===b||2>"a1a".split(b).length;
-this.numeric=B(a.numeric,e)}else{try{this.split=B(this.split,ba)}catch(d){this.split=/\s+/}this.numeric=B(a.numeric,B(this.numeric,!0))}this.prepare=B(a.prepare,null,this.prepare);this.finalize=B(a.finalize,null,this.finalize);b=a.filter;this.filter="function"===typeof b?b:B(b&&new Set(b),null,this.filter);this.dedupe=B(a.dedupe,!0,this.dedupe);this.matcher=B((b=a.matcher)&&new Map(b),null,this.matcher);this.mapper=B((b=a.mapper)&&new Map(b),null,this.mapper);this.stemmer=B((b=a.stemmer)&&new Map(b),
-null,this.stemmer);this.replacer=B(a.replacer,null,this.replacer);this.minlength=B(a.minlength,1,this.minlength);this.maxlength=B(a.maxlength,1024,this.maxlength);this.rtl=B(a.rtl,!1,this.rtl);if(this.cache=b=B(a.cache,!0,this.cache))this.H=null,this.R="number"===typeof b?b:2E5,this.F=new Map,this.G=new Map,this.L=this.K=128;this.h="";this.M=null;this.D="";this.N=null;if(this.matcher)for(const d of this.matcher.keys())this.h+=(this.h?"|":"")+d;if(this.stemmer)for(const d of this.stemmer.keys())this.D+=
-(this.D?"|":"")+d;return this};w.addStemmer=function(a,c){this.stemmer||(this.stemmer=new Map);this.stemmer.set(a,c);this.D+=(this.D?"|":"")+a;this.N=null;this.cache&&K(this);return this};w.addFilter=function(a){"function"===typeof a?this.filter=a:(this.filter||(this.filter=new Set),this.filter.add(a));this.cache&&K(this);return this};
-w.addMapper=function(a,c){if("object"===typeof a)return this.addReplacer(a,c);if(1<a.length)return this.addMatcher(a,c);this.mapper||(this.mapper=new Map);this.mapper.set(a,c);this.cache&&K(this);return this};w.addMatcher=function(a,c){if("object"===typeof a)return this.addReplacer(a,c);if(2>a.length&&(this.dedupe||this.mapper))return this.addMapper(a,c);this.matcher||(this.matcher=new Map);this.matcher.set(a,c);this.h+=(this.h?"|":"")+a;this.M=null;this.cache&&K(this);return this};
-w.addReplacer=function(a,c){if("string"===typeof a)return this.addMatcher(a,c);this.replacer||(this.replacer=[]);this.replacer.push(a,c);this.cache&&K(this);return this};
-w.encode=function(a){if(this.cache&&a.length<=this.K)if(this.H){if(this.F.has(a))return this.F.get(a)}else this.H=setTimeout(K,50,this);this.normalize&&("function"===typeof this.normalize?a=this.normalize(a):a=fa?a.normalize("NFKD").replace(fa,"").toLowerCase():a.toLowerCase());this.prepare&&(a=this.prepare(a));this.numeric&&3<a.length&&(a=a.replace(da,"$1 $2").replace(ea,"$1 $2").replace(ca,"$1 "));const c=!(this.dedupe||this.mapper||this.filter||this.matcher||this.stemmer||this.replacer);let b=
-[],e=this.split||""===this.split?a.split(this.split):a;for(let f=0,g,k;f<e.length;f++)if((g=k=e[f])&&!(g.length<this.minlength||g.length>this.maxlength))if(c)b.push(g);else if(!this.filter||("function"===typeof this.filter?this.filter(g):!this.filter.has(g))){if(this.cache&&g.length<=this.L)if(this.H){var d=this.G.get(g);if(d||""===d){d&&b.push(d);continue}}else this.H=setTimeout(K,50,this);this.stemmer&&2<g.length&&(this.N||(this.N=new RegExp("(?!^)("+this.D+")$")),g=g.replace(this.N,h=>this.stemmer.get(h)));
+var x;function A(a,c,b){const e=typeof b,d=typeof a;if("undefined"!==e){if("undefined"!==d){if(b){if("function"===d&&e===d)return function(k){return a(b(k))};c=a.constructor;if(c===b.constructor){if(c===Array)return b.concat(a);if(c===Map){var f=new Map(b);for(var g of a)f.set(g[0],g[1]);return f}if(c===Set){g=new Set(b);for(f of a.values())g.add(f);return g}}}return a}return b}return"undefined"===d?c:a}function B(){return Object.create(null)}function C(a){return"string"===typeof a}
+function G(a){return"object"===typeof a}function H(a,c){if(C(c))a=a[c];else for(let b=0;a&&b<c.length;b++)a=a[c[b]];return a}function aa(a){let c=0;for(let b=0,e;b<a.length;b++)(e=a[b])&&c<e.length&&(c=e.length);return c};const ba=/[^\p{L}\p{N}]+/u,da=/(\d{3})/g,ea=/(\D)(\d{3})/g,fa=/(\d{3})(\D)/g,ha=/[\u0300-\u036f]/g;function I(a={}){if(!this||this.constructor!==I)return new I(...arguments);if(arguments.length)for(a=0;a<arguments.length;a++)this.assign(arguments[a]);else this.assign(a)}x=I.prototype;
+x.assign=function(a){this.normalize=A(a.normalize,!0,this.normalize);let c=a.include,b=c||a.exclude||a.split,e;if(b||""===b){if("object"===typeof b&&b.constructor!==RegExp){let d="";e=!c;c||(d+="\\p{Z}");b.letter&&(d+="\\p{L}");b.number&&(d+="\\p{N}",e=!!c);b.symbol&&(d+="\\p{S}");b.punctuation&&(d+="\\p{P}");b.control&&(d+="\\p{C}");if(b=b.char)d+="object"===typeof b?b.join(""):b;try{this.split=new RegExp("["+(c?"^":"")+d+"]+","u")}catch(f){this.split=/\s+/}}else this.split=b,e=!1===b||2>"a1a".split(b).length;
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-w.serialize=function(a=!0){let c="",b="",e="";if(this.reg.size){let f;for(var d of this.reg.keys())f||(f=typeof d),c+=(c?",":"")+("string"===f?'"'+d+'"':d);c="index.reg=new Set(["+c+"]);";b=ua(this.map,f);b="index.map=new Map(["+b+"]);";for(const g of this.ctx.entries()){d=g[0];let k=ua(g[1],f);k="new Map(["+k+"])";k='["'+d+'",'+k+"]";e+=(e?",":"")+k}e="index.ctx=new Map(["+e+"]);"}return a?"function inject(index){"+c+b+e+"}":c+b+e};ia(O.prototype);C();export default {Index:O,Charset:Ta,Encoder:J,Document:U,Worker:null,Resolver:null,IndexedDB:null,Language:{}};
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+x.remove=function(a){G(a)&&(a=H(a,this.key));for(var c of this.index.values())c.remove(a,!0);if(this.reg.has(a)){if(this.tag&&!this.fastupdate)for(let b of this.tag.values())for(let e of b){c=e[0];const d=e[1],f=d.indexOf(a);-1<f&&(1<d.length?d.splice(f,1):b.delete(c))}this.store&&this.store.delete(a);this.reg.delete(a)}this.cache&&this.cache.remove(a);return this};
+x.clear=function(){const a=[];for(const c of this.index.values()){const b=c.clear();b.then&&a.push(b)}if(this.tag)for(const c of this.tag.values())c.clear();this.store&&this.store.clear();this.cache&&this.cache.clear();return a.length?Promise.all(a):this};x.contain=function(a){return this.reg.has(a)};x.cleanup=function(){for(const a of this.index.values())a.cleanup();return this};x.get=function(a){return this.store.get(a)||null};
+x.set=function(a,c){"object"===typeof a&&(c=a,a=H(c,this.key));this.store.set(a,c);return this};x.searchCache=Ma;
+x.export=function(a,c,b=0,e=0){if(b<this.field.length){const g=this.field[b];if((c=this.index.get(g).export(a,g,b,e=1))&&c.then){const k=this;return c.then(function(){return k.export(a,g,b+1)})}return this.export(a,g,b+1)}let d,f;switch(e){case 0:d="reg";f=sa(this.reg);c=null;break;case 1:d="tag";f=this.tag&&qa(this.tag,this.reg.size);c=null;break;case 2:d="doc";f=this.store&&oa(this.store);c=null;break;default:return}return T.call(this,a,c,d,f,b,e)};
+x.import=function(a,c){var b=a.split(".");"json"===b[b.length-1]&&b.pop();a=2<b.length?b[0]:"";b=2<b.length?b[2]:b[1];if(c){"string"===typeof c&&(c=JSON.parse(c));if(a)return this.index.get(a).import(b,c);switch(b){case "reg":this.fastupdate=!1;this.reg=ta(c,this.reg);for(let e=0,d;e<this.field.length;e++)d=this.index.get(this.field[e]),d.fastupdate=!1,d.reg=this.reg;break;case "tag":this.tag=ra(c,this.tag);break;case "doc":this.store=pa(c,this.store)}}};ja(U.prototype);function Ma(a,c,b){const e=("object"===typeof a?""+a.query:a).toLowerCase();this.cache||(this.cache=new X);let d=this.cache.get(e);if(!d){d=this.search(a,c,b);if(d.then){const f=this;d.then(function(g){f.cache.set(e,g);return g})}this.cache.set(e,d)}return d}function X(a){this.limit=a&&!0!==a?a:1E3;this.cache=new Map;this.h=""}X.prototype.set=function(a,c){this.cache.set(this.h=a,c);this.cache.size>this.limit&&this.cache.delete(this.cache.keys().next().value)};
+X.prototype.get=function(a){const c=this.cache.get(a);c&&this.h!==a&&(this.cache.delete(a),this.cache.set(this.h=a,c));return c};X.prototype.remove=function(a){for(const c of this.cache){const b=c[0];c[1].includes(a)&&this.cache.delete(b)}};X.prototype.clear=function(){this.cache.clear();this.h=""};const Na={normalize:!1,numeric:!1,dedupe:!1};const Oa={};const Pa=new Map([["b","p"],["v","f"],["w","f"],["z","s"],["x","s"],["d","t"],["n","m"],["c","k"],["g","k"],["j","k"],["q","k"],["i","e"],["y","e"],["u","o"]]);const Qa=new Map([["ae","a"],["oe","o"],["sh","s"],["kh","k"],["th","t"],["ph","f"],["pf","f"]]),Ra=[/([^aeo])h(.)/g,"$1$2",/([aeo])h([^aeo]|$)/g,"$1$2",/(.)\1+/g,"$1"];const Sa={a:"",e:"",i:"",o:"",u:"",y:"",b:1,f:1,p:1,v:1,c:2,g:2,j:2,k:2,q:2,s:2,x:2,z:2,"\u00df":2,d:3,t:3,l:4,m:5,n:5,r:6};var Ta={Exact:Na,Default:Oa,Normalize:Oa,LatinBalance:{mapper:Pa},LatinAdvanced:{mapper:Pa,matcher:Qa,replacer:Ra},LatinExtra:{mapper:Pa,replacer:Ra.concat([/(?!^)[aeo]/g,""]),matcher:Qa},LatinSoundex:{dedupe:!1,include:{letter:!0},finalize:function(a){for(let b=0;b<a.length;b++){var c=a[b];let e=c.charAt(0),d=Sa[e];for(let f=1,g;f<c.length&&(g=c.charAt(f),"h"===g||"w"===g||!(g=Sa[g])||g===d||(e+=g,d=g,4!==e.length));f++);a[b]=e}}},CJK:{split:""},LatinExact:Na,LatinDefault:Oa,LatinSimple:Oa};N.prototype.remove=function(a,c){const b=this.reg.size&&(this.fastupdate?this.reg.get(a):this.reg.has(a));if(b){if(this.fastupdate)for(let e=0,d;e<b.length;e++){if(d=b[e])if(2>d.length)d.pop();else{const f=d.indexOf(a);f===b.length-1?d.pop():d.splice(f,1)}}else Y(this.map,a),this.depth&&Y(this.ctx,a);c||this.reg.delete(a)}this.cache&&this.cache.remove(a);return this};
+function Y(a,c){let b=0;var e="undefined"===typeof c;if(a.constructor===Array)for(let d=0,f,g;d<a.length;d++){if((f=a[d])&&f.length)if(e)b++;else if(g=f.indexOf(c),0<=g){1<f.length?(f.splice(g,1),b++):delete a[d];break}else b++}else for(let d of a.entries()){e=d[0];const f=Y(d[1],c);f?b+=f:a.delete(e)}return b};const Ua={memory:{resolution:1},performance:{resolution:3,fastupdate:!0,context:{depth:1,resolution:1}},match:{tokenize:"forward"},score:{resolution:9,context:{depth:2,resolution:3}}};N.prototype.add=function(a,c,b,e){if(c&&(a||0===a)){if(!e&&!b&&this.reg.has(a))return this.update(a,c);c=this.encoder.encode(c);if(e=c.length){const l=B(),m=B(),n=this.depth,r=this.resolution;for(let p=0;p<e;p++){let q=c[this.rtl?e-1-p:p];var d=q.length;if(d&&(n||!m[q])){var f=this.score?this.score(c,q,p,null,0):Wa(r,e,p),g="";switch(this.tokenize){case "full":if(2<d){for(let t=0,u;t<d;t++)for(f=d;f>t;f--){g=q.substring(t,f);u=this.rtl?d-1-t:t;var k=this.score?this.score(c,q,p,g,u):Wa(r,e,p,d,u);
+Z(this,m,g,k,a,b)}break}case "bidirectional":case "reverse":if(1<d){for(k=d-1;0<k;k--){g=q[this.rtl?d-1-k:k]+g;var h=this.score?this.score(c,q,p,g,k):Wa(r,e,p,d,k);Z(this,m,g,h,a,b)}g=""}case "forward":if(1<d){for(k=0;k<d;k++)g+=q[this.rtl?d-1-k:k],Z(this,m,g,f,a,b);break}default:if(Z(this,m,q,f,a,b),n&&1<e&&p<e-1)for(d=B(),g=this.S,f=q,k=Math.min(n+1,this.rtl?p+1:e-p),d[f]=1,h=1;h<k;h++)if((q=c[this.rtl?e-1-p-h:p+h])&&!d[q]){d[q]=1;const t=this.score?this.score(c,f,p,q,h-1):Wa(g+(e/2>g?0:1),e,p,
+k-1,h-1),u=this.bidirectional&&q>f;Z(this,l,u?f:q,t,a,b,u?q:f)}}}}this.fastupdate||this.reg.add(a)}}return this};function Z(a,c,b,e,d,f,g){let k=g?a.ctx:a.map,h;if(!c[b]||g&&!(h=c[b])[g])g?(c=h||(c[b]=B()),c[g]=1,(h=k.get(g))?k=h:k.set(g,k=new Map)):c[b]=1,(h=k.get(b))?k=h:k.set(b,k=[]),k=k[e]||(k[e]=[]),f&&k.includes(d)||(k.push(d),a.fastupdate&&((c=a.reg.get(d))?c.push(k):a.reg.set(d,[k])))}function Wa(a,c,b,e,d){return b&&1<a?c+(e||0)<=a?b+(d||0):(a-1)/(c+(e||0))*(b+(d||0))+1|0:0};N.prototype.search=function(a,c,b){b||(c||"object"!==typeof a?"object"===typeof c&&(b=c,c=0):(b=a,a=""));var e=[],d=0;if(b){a=b.query||a;c=b.limit||c;d=b.offset||0;var f=b.context;var g=b.suggest;var k=!0;var h=b.resolution}else k=!0;a=this.encoder.encode(a);b=a.length;c=c||(k?100:0);if(1===b)return g=c,(c=Xa(this,a[0],""))&&c.length?Aa.call(this,c,g,d):[];f=this.depth&&!1!==f;if(2===b&&f&&!g)return g=c,(c=Xa(this,a[1],a[0]))&&c.length?Aa.call(this,c,g,d):[];k=B();let l=0;if(f){var m=a[0];l=1}h||
+0===h||(h=m?this.S:this.resolution);for(let q,t;l<b;l++){if((t=a[l])&&!k[t]){k[t]=1;q=Xa(this,t,m);a:{f=q;var n=e,r=g,p=h;let u=[];if(f&&f.length){if(f.length<=p){n.push(f);q=void 0;break a}for(let w=0,y;w<p;w++)if(y=f[w])u[w]=y;if(u.length){n.push(u);q=void 0;break a}}q=r?void 0:u}if(q){e=q;break}m&&(g&&q&&e.length||(m=t))}g&&m&&l===b-1&&!e.length&&(h=this.resolution,m="",l=-1,k=B())}a:{a=e;e=a.length;m=a;if(1<e)m=xa(a,h,c,d,g);else if(1===e){g=Aa.call(null,a[0],c,d);break a}g=m}return g};
+function Xa(a,c,b){let e;b&&(e=a.bidirectional&&c>b)&&(e=b,b=c,c=e);a=b?(a=a.ctx.get(b))&&a.get(c):a.map.get(c);return a};function N(a,c){if(!this||this.constructor!==N)return new N(a);if(a){var b=C(a)?a:a.preset;b&&(a=Object.assign({},Ua[b],a))}else a={};b=a.context;const e=!0===b?{depth:1}:b||{},d=C(a.encoder)?Ta[a.encoder]:a.encode||a.encoder||{};this.encoder=d.encode?d:"object"===typeof d?new I(d):{encode:d};this.resolution=a.resolution||9;this.tokenize=b=(b=a.tokenize)&&"default"!==b&&"exact"!==b&&b||"strict";this.depth="strict"===b&&e.depth||0;this.bidirectional=!1!==e.bidirectional;this.fastupdate=!!a.fastupdate;
+this.score=a.score||null;b=!1;this.map=new Map;this.ctx=new Map;this.reg=c||(this.fastupdate?new Map:new Set);this.S=e.resolution||3;this.rtl=d.rtl||a.rtl||!1;this.cache=(b=a.cache||null)&&new X(b);this.priority=a.priority||4}x=N.prototype;x.clear=function(){this.map.clear();this.ctx.clear();this.reg.clear();this.cache&&this.cache.clear();return this};x.append=function(a,c){return this.add(a,c,!0)};x.contain=function(a){return this.reg.has(a)};
+x.update=function(a,c){const b=this,e=this.remove(a);return e&&e.then?e.then(()=>b.add(a,c)):this.add(a,c)};x.cleanup=function(){if(!this.fastupdate)return this;Y(this.map);this.depth&&Y(this.ctx);return this};x.searchCache=Ma;x.export=function(a,c,b=0,e=0){let d,f;switch(e){case 0:d="reg";f=sa(this.reg);break;case 1:d="cfg";f=null;break;case 2:d="map";f=oa(this.map,this.reg.size);break;case 3:d="ctx";f=qa(this.ctx,this.reg.size);break;default:return}return T.call(this,a,c,d,f,b,e)};
+x.import=function(a,c){if(c)switch("string"===typeof c&&(c=JSON.parse(c)),a=a.split("."),"json"===a[a.length-1]&&a.pop(),3===a.length&&a.shift(),a=1<a.length?a[1]:a[0],a){case "reg":this.fastupdate=!1;this.reg=ta(c,this.reg);break;case "map":this.map=pa(c,this.map);break;case "ctx":this.ctx=ra(c,this.ctx)}};
+x.serialize=function(a=!0){let c="",b="",e="";if(this.reg.size){let f;for(var d of this.reg.keys())f||(f=typeof d),c+=(c?",":"")+("string"===f?'"'+d+'"':d);c="index.reg=new Set(["+c+"]);";b=ua(this.map,f);b="index.map=new Map(["+b+"]);";for(const g of this.ctx.entries()){d=g[0];let k=ua(g[1],f);k="new Map(["+k+"])";k='["'+d+'",'+k+"]";e+=(e?",":"")+k}e="index.ctx=new Map(["+e+"]);"}return a?"function inject(index){"+c+b+e+"}":c+b+e};ja(N.prototype);B();export default {Index:N,Charset:Ta,Encoder:I,Document:U,Worker:null,Resolver:null,IndexedDB:null,Language:{}};
+export const Index=N;export const Charset=Ta;export const Encoder=I;export const Document=U;export const Worker=null;export const Resolver=null;export const IndexedDB=null;export const Language={};
\ No newline at end of file
diff --git a/dist/flexsearch.es5.debug.js b/dist/flexsearch.es5.debug.js
index 3f12e8d..40dfdfe 100644
--- a/dist/flexsearch.es5.debug.js
+++ b/dist/flexsearch.es5.debug.js
@@ -1,5 +1,5 @@
 /**!
- * FlexSearch.js v0.8.154 (ES5/Debug)
+ * FlexSearch.js v0.8.155 (ES5/Debug)
  * Author and Copyright: Thomas Wilkerling
  * Licence: Apache-2.0
  * Hosted by Nextapps GmbH
@@ -13,7 +13,7 @@ function aa(a) {
     return b < a.length ? {done:!1, value:a[b++]} : {done:!0};
   };
 }
-function x(a) {
+function y(a) {
   var b = "undefined" != typeof Symbol && Symbol.iterator && a[Symbol.iterator];
   if (b) {
     return b.call(a);
@@ -109,7 +109,7 @@ ja.prototype.return = function(a) {
   this.B = {return:a};
   this.h = this.H;
 };
-function E(a, b, c) {
+function D(a, b, c) {
   a.h = c;
   return {value:b};
 }
@@ -408,9 +408,9 @@ C("Promise", function(a) {
   };
   b.prototype.then = function(f, h) {
     function k(p, q) {
-      return "function" == typeof p ? function(r) {
+      return "function" == typeof p ? function(t) {
         try {
-          l(p(r));
+          l(p(t));
         } catch (w) {
           m(w);
         }
@@ -451,17 +451,17 @@ C("Promise", function(a) {
   };
   b.race = function(f) {
     return new b(function(h, k) {
-      for (var l = x(f), m = l.next(); !m.done; m = l.next()) {
+      for (var l = y(f), m = l.next(); !m.done; m = l.next()) {
         d(m.value).U(h, k);
       }
     });
   };
   b.all = function(f) {
-    var h = x(f), k = h.next();
+    var h = y(f), k = h.next();
     return k.done ? d([]) : new b(function(l, m) {
-      function n(r) {
+      function n(t) {
         return function(w) {
-          p[r] = w;
+          p[t] = w;
           q--;
           0 == q && l(p);
         };
@@ -510,7 +510,7 @@ C("WeakMap", function(a) {
   function b(k) {
     this.h = (h += Math.random() + 1).toString();
     if (k) {
-      k = x(k);
+      k = y(k);
       for (var l; !(l = k.next()).done;) {
         l = l.value, this.set(l[0], l[1]);
       }
@@ -586,14 +586,14 @@ C("WeakMap", function(a) {
 C("Map", function(a) {
   function b() {
     var h = {};
-    return h.K = h.next = h.head = h;
+    return h.J = h.next = h.head = h;
   }
   function c(h, k) {
     var l = h[1];
     return ua(function() {
       if (l) {
         for (; l.head != h[1];) {
-          l = l.K;
+          l = l.J;
         }
         for (; l.next != l.head;) {
           return l = l.next, {done:!1, value:k(l)};
@@ -622,7 +622,7 @@ C("Map", function(a) {
     this[1] = b();
     this.size = 0;
     if (h) {
-      h = x(h);
+      h = y(h);
       for (var k; !(k = h.next()).done;) {
         k = k.value, this.set(k[0], k[1]);
       }
@@ -633,7 +633,7 @@ C("Map", function(a) {
       return !1;
     }
     try {
-      var h = Object.seal({x:4}), k = new a(x([[h, "s"]]));
+      var h = Object.seal({x:4}), k = new a(y([[h, "s"]]));
       if ("s" != k.get(h) || 1 != k.size || k.get({x:4}) || k.set({x:4}, "t") != k || 2 != k.size) {
         return !1;
       }
@@ -654,16 +654,16 @@ C("Map", function(a) {
     h = 0 === h ? 0 : h;
     var l = d(this, h);
     l.list || (l.list = this[0][l.id] = []);
-    l.F ? l.F.value = k : (l.F = {next:this[1], K:this[1].K, head:this[1], key:h, value:k}, l.list.push(l.F), this[1].K.next = l.F, this[1].K = l.F, this.size++);
+    l.F ? l.F.value = k : (l.F = {next:this[1], J:this[1].J, head:this[1], key:h, value:k}, l.list.push(l.F), this[1].J.next = l.F, this[1].J = l.F, this.size++);
     return this;
   };
   e.prototype.delete = function(h) {
     h = d(this, h);
-    return h.F && h.list ? (h.list.splice(h.index, 1), h.list.length || delete this[0][h.id], h.F.K.next = h.F.next, h.F.next.K = h.F.K, h.F.head = null, this.size--, !0) : !1;
+    return h.F && h.list ? (h.list.splice(h.index, 1), h.list.length || delete this[0][h.id], h.F.J.next = h.F.next, h.F.next.J = h.F.J, h.F.head = null, this.size--, !0) : !1;
   };
   e.prototype.clear = function() {
     this[0] = {};
-    this[1] = this[1].K = b();
+    this[1] = this[1].J = b();
     this.size = 0;
   };
   e.prototype.has = function(h) {
@@ -700,7 +700,7 @@ C("Set", function(a) {
   function b(c) {
     this.h = new Map();
     if (c) {
-      c = x(c);
+      c = y(c);
       for (var d; !(d = c.next()).done;) {
         this.add(d.value);
       }
@@ -712,7 +712,7 @@ C("Set", function(a) {
       return !1;
     }
     try {
-      var c = Object.seal({x:4}), d = new a(x([c]));
+      var c = Object.seal({x:4}), d = new a(y([c]));
       if (!d.has(c) || 1 != d.size || d.add(c) != d || 1 != d.size || d.add({x:4}) != d || 2 != d.size) {
         return !1;
       }
@@ -854,7 +854,7 @@ function G(a, b, c) {
           }
           if (b === Map) {
             b = new Map(c);
-            d = x(a);
+            d = y(a);
             for (e = d.next(); !e.done; e = d.next()) {
               e = e.value, b.set(e[0], e[1]);
             }
@@ -862,7 +862,7 @@ function G(a, b, c) {
           }
           if (b === Set) {
             b = new Set(c);
-            d = x(a.values());
+            d = y(a.values());
             for (e = d.next(); !e.done; e = d.next()) {
               b.add(e.value);
             }
@@ -876,10 +876,10 @@ function G(a, b, c) {
   }
   return "undefined" === e ? b : a;
 }
-function J() {
+function I() {
   return Object.create(null);
 }
-function K(a) {
+function J(a) {
   return "string" === typeof a;
 }
 function xa(a) {
@@ -887,14 +887,14 @@ function xa(a) {
 }
 function ya(a) {
   var b = [];
-  a = x(a.keys());
+  a = y(a.keys());
   for (var c = a.next(); !c.done; c = a.next()) {
     b.push(c.value);
   }
   return b;
 }
 function za(a, b) {
-  if (K(b)) {
+  if (J(b)) {
     a = a[b];
   } else {
     for (var c = 0; a && c < b.length; c++) {
@@ -917,7 +917,7 @@ function Ga(a) {
     if (arguments instanceof Array) {
       var g = arguments;
     } else {
-      g = x(arguments);
+      g = y(arguments);
       for (var f, h = []; !(f = g.next()).done;) {
         h.push(f.value);
       }
@@ -987,12 +987,12 @@ u.assign = function(a) {
   this.A = "";
   this.N = null;
   if (this.matcher) {
-    for (a = x(this.matcher.keys()), b = a.next(); !b.done; b = a.next()) {
+    for (a = y(this.matcher.keys()), b = a.next(); !b.done; b = a.next()) {
       this.h += (this.h ? "|" : "") + b.value;
     }
   }
   if (this.stemmer) {
-    for (a = x(this.stemmer.keys()), b = a.next(); !b.done; b = a.next()) {
+    for (a = y(this.stemmer.keys()), b = a.next(); !b.done; b = a.next()) {
       this.A += (this.A ? "|" : "") + b.value;
     }
   }
@@ -1003,12 +1003,12 @@ u.addStemmer = function(a, b) {
   this.stemmer.set(a, b);
   this.A += (this.A ? "|" : "") + a;
   this.N = null;
-  this.cache && L(this);
+  this.cache && K(this);
   return this;
 };
 u.addFilter = function(a) {
   "function" === typeof a ? this.filter = a : (this.filter || (this.filter = new Set()), this.filter.add(a));
-  this.cache && L(this);
+  this.cache && K(this);
   return this;
 };
 u.addMapper = function(a, b) {
@@ -1020,7 +1020,7 @@ u.addMapper = function(a, b) {
   }
   this.mapper || (this.mapper = new Map());
   this.mapper.set(a, b);
-  this.cache && L(this);
+  this.cache && K(this);
   return this;
 };
 u.addMatcher = function(a, b) {
@@ -1034,7 +1034,7 @@ u.addMatcher = function(a, b) {
   this.matcher.set(a, b);
   this.h += (this.h ? "|" : "") + a;
   this.M = null;
-  this.cache && L(this);
+  this.cache && K(this);
   return this;
 };
 u.addReplacer = function(a, b) {
@@ -1043,7 +1043,7 @@ u.addReplacer = function(a, b) {
   }
   this.replacer || (this.replacer = []);
   this.replacer.push(a, b);
-  this.cache && L(this);
+  this.cache && K(this);
   return this;
 };
 u.encode = function(a) {
@@ -1054,7 +1054,7 @@ u.encode = function(a) {
         return this.B.get(a);
       }
     } else {
-      this.D = setTimeout(L, 50, this);
+      this.D = setTimeout(K, 50, this);
     }
   }
   this.normalize && ("function" === typeof this.normalize ? a = this.normalize(a) : a = Fa ? a.normalize("NFKD").replace(Fa, "").toLowerCase() : a.toLowerCase());
@@ -1074,7 +1074,7 @@ u.encode = function(a) {
                 continue;
               }
             } else {
-              this.D = setTimeout(L, 50, this);
+              this.D = setTimeout(K, 50, this);
             }
           }
           this.stemmer && 2 < f.length && (this.N || (this.N = new RegExp("(?!^)(" + this.A + ")$")), f = f.replace(this.N, function(q) {
@@ -1105,12 +1105,12 @@ u.encode = function(a) {
   this.cache && a.length <= this.G && (this.B.set(a, d), this.B.size > this.T && (this.B.clear(), this.G = this.G / 1.1 | 0));
   return d;
 };
-function L(a) {
+function K(a) {
   a.D = null;
   a.B.clear();
   a.C.clear();
 }
-;var Ha, N;
+;var Ha, M;
 function Ia(a) {
   var b, c, d, e, g, f;
   return ta(function(h) {
@@ -1122,8 +1122,8 @@ function Ia(a) {
         d = a.args;
         switch(b) {
           case "init":
-            N = a.options || {};
-            (e = a.factory) ? (Function("return " + e)()(self), Ha = new self.FlexSearch.Index(N), delete self.FlexSearch) : Ha = new O(N);
+            M = a.options || {};
+            (e = a.factory) ? (Function("return " + e)()(self), Ha = new self.FlexSearch.Index(M), delete self.FlexSearch) : Ha = new O(M);
             postMessage({id:c});
             break;
           default:
@@ -1133,27 +1133,27 @@ function Ia(a) {
         break;
       case 2:
         if ("export" === b) {
-          if (!N.export || "function" !== typeof N.export) {
+          if (!M.export || "function" !== typeof M.export) {
             throw Error('Either no extern configuration provided for the Worker-Index or no method was defined on the config property "export".');
           }
-          d[1] ? (d[0] = N.export, d[2] = 0, d[3] = 1) : d = null;
+          d[1] ? (d[0] = M.export, d[2] = 0, d[3] = 1) : d = null;
         }
         if ("import" === b) {
-          if (!N.import || "function" !== typeof N.import) {
+          if (!M.import || "function" !== typeof M.import) {
             throw Error('Either no extern configuration provided for the Worker-Index or no method was defined on the config property "import".');
           }
           if (!d[0]) {
             h.h = 5;
             break;
           }
-          return E(h, N.import.call(Ha, d[0]), 9);
+          return D(h, M.import.call(Ha, d[0]), 9);
         }
         g = d && Ha[b].apply(Ha, d);
         if (!g || !g.then) {
           h.h = 5;
           break;
         }
-        return E(h, g, 7);
+        return D(h, g, 7);
       case 7:
         g = h.D;
         h.h = 5;
@@ -1172,9 +1172,9 @@ function Ia(a) {
   Ka.call(a, "update");
   Ka.call(a, "remove");
 }
-var Na, Oa, Pa;
-function Qa() {
-  Na = Pa = 0;
+var Ma, Na, Oa;
+function Pa() {
+  Ma = Oa = 0;
 }
 function Ka(a) {
   this[a + "Async"] = function() {
@@ -1183,8 +1183,8 @@ function Ka(a) {
       var d = c;
       delete b[b.length - 1];
     }
-    Na ? Pa || (Pa = Date.now() - Oa >= this.priority * this.priority * 3) : (Na = setTimeout(Qa, 0), Oa = Date.now());
-    if (Pa) {
+    Ma ? Oa || (Oa = Date.now() - Na >= this.priority * this.priority * 3) : (Ma = setTimeout(Pa, 0), Na = Date.now());
+    if (Oa) {
       var e = this;
       return new Promise(function(f) {
         setTimeout(function() {
@@ -1200,8 +1200,8 @@ function Ka(a) {
     return c;
   };
 }
-;var Ra = 0;
-function Sa(a) {
+;var Qa = 0;
+function Ra(a) {
   function b(f) {
     function h(k) {
       k = k.data || k;
@@ -1209,16 +1209,16 @@ function Sa(a) {
       m && (m(k.msg), delete e.h[l]);
     }
     this.worker = f;
-    this.h = J();
+    this.h = I();
     if (this.worker) {
       d ? this.worker.on("message", h) : this.worker.onmessage = h;
       if (a.config) {
         return new Promise(function(k) {
-          e.h[++Ra] = function() {
+          e.h[++Qa] = function() {
             k(e);
-            1e9 < Ra && (Ra = 0);
+            1e9 < Qa && (Qa = 0);
           };
-          e.worker.postMessage({id:Ra, task:"init", factory:c, options:a});
+          e.worker.postMessage({id:Qa, task:"init", factory:c, options:a});
         });
       }
       this.worker.postMessage({task:"init", factory:c, options:a});
@@ -1227,12 +1227,12 @@ function Sa(a) {
     }
   }
   a = void 0 === a ? {} : a;
-  if (!this || this.constructor !== Sa) {
-    return new Sa(a);
+  if (!this || this.constructor !== Ra) {
+    return new Ra(a);
   }
   var c = "undefined" !== typeof self ? self._factory : "undefined" !== typeof window ? window._factory : null;
   c && (c = c.toString());
-  var d = "undefined" === typeof window, e = this, g = Ta(c, d, a.worker);
+  var d = "undefined" === typeof window, e = this, g = Sa(c, d, a.worker);
   return g.then ? g.then(function(f) {
     return b.call(e, f);
   }) : b.call(this, g);
@@ -1245,9 +1245,9 @@ P("remove");
 P("clear");
 P("export");
 P("import");
-Ja(Sa.prototype);
+Ja(Ra.prototype);
 function P(a) {
-  Sa.prototype[a] = function() {
+  Ra.prototype[a] = function() {
     var b = this, c = [].slice.call(arguments), d = c[c.length - 1];
     if ("function" === typeof d) {
       var e = d;
@@ -1255,69 +1255,69 @@ function P(a) {
     }
     d = new Promise(function(g) {
       "export" === a && "function" === typeof c[0] && (c[0] = null);
-      b.h[++Ra] = g;
-      b.worker.postMessage({task:a, id:Ra, args:c});
+      b.h[++Qa] = g;
+      b.worker.postMessage({task:a, id:Qa, args:c});
     });
     return e ? (d.then(e), this) : d;
   };
 }
-function Ta(a, b, c) {
+function Sa(a, b, c) {
   return b ? "undefined" !== typeof module ? new(require("worker_threads")["Worker"])(__dirname+"/node/node.js") : import("worker_threads").then(function(worker){return new worker["Worker"]((1,eval)("import.meta.dirname")+"/node/node.mjs")}) : a ? new window.Worker(URL.createObjectURL(new Blob(["onmessage=" + Ia.toString()], {type:"text/javascript"}))) : new window.Worker("string" === typeof c ? c : (0,eval)("import.meta.url").replace("/worker.js", "/worker/worker.js").replace("flexsearch.bundle.module.min.js", 
   "module/worker/worker.js"), {type:"module"});
 }
-;function Ua(a, b) {
+;function Ta(a, b) {
   b = void 0 === b ? 0 : b;
   var c = [], d = [];
   b && (b = 250000 / b * 5000 | 0);
-  a = x(a.entries());
+  a = y(a.entries());
   for (var e = a.next(); !e.done; e = a.next()) {
     d.push(e.value), d.length === b && (c.push(d), d = []);
   }
   d.length && c.push(d);
   return c;
 }
-function Va(a, b) {
+function Ua(a, b) {
   b || (b = new Map());
   for (var c = 0, d; c < a.length; c++) {
     d = a[c], b.set(d[0], d[1]);
   }
   return b;
 }
-function Wa(a, b) {
+function Va(a, b) {
   b = void 0 === b ? 0 : b;
   var c = [], d = [];
   b && (b = 250000 / b * 1000 | 0);
-  a = x(a.entries());
+  a = y(a.entries());
   for (var e = a.next(); !e.done; e = a.next()) {
-    e = e.value, d.push([e[0], Ua(e[1])[0]]), d.length === b && (c.push(d), d = []);
+    e = e.value, d.push([e[0], Ta(e[1])[0]]), d.length === b && (c.push(d), d = []);
   }
   d.length && c.push(d);
   return c;
 }
-function Xa(a, b) {
+function Wa(a, b) {
   b || (b = new Map());
   for (var c = 0, d, e; c < a.length; c++) {
-    d = a[c], e = b.get(d[0]), b.set(d[0], Va(d[1], e));
+    d = a[c], e = b.get(d[0]), b.set(d[0], Ua(d[1], e));
   }
   return b;
 }
-function Ya(a) {
+function Xa(a) {
   var b = [], c = [];
-  a = x(a.keys());
+  a = y(a.keys());
   for (var d = a.next(); !d.done; d = a.next()) {
     c.push(d.value), 250000 === c.length && (b.push(c), c = []);
   }
   c.length && b.push(c);
   return b;
 }
-function Za(a, b) {
+function Ya(a, b) {
   b || (b = new Set());
   for (var c = 0; c < a.length; c++) {
     b.add(a[c]);
   }
   return b;
 }
-function $a(a, b, c, d, e, g, f) {
+function Za(a, b, c, d, e, g, f) {
   f = void 0 === f ? 0 : f;
   var h = d && d.constructor === Array, k = h ? d.shift() : d;
   if (!k) {
@@ -1326,14 +1326,14 @@ function $a(a, b, c, d, e, g, f) {
   if ((k = a((b ? b + "." : "") + (f + 1) + "." + c, JSON.stringify(k))) && k.then) {
     var l = this;
     return k.then(function() {
-      return $a.call(l, a, b, c, h ? d : null, e, g, f + 1);
+      return Za.call(l, a, b, c, h ? d : null, e, g, f + 1);
     });
   }
-  return $a.call(this, a, b, c, h ? d : null, e, g, f + 1);
+  return Za.call(this, a, b, c, h ? d : null, e, g, f + 1);
 }
-function ab(a, b) {
+function $a(a, b) {
   var c = "";
-  a = x(a.entries());
+  a = y(a.entries());
   for (var d = a.next(); !d.done; d = a.next()) {
     var e = d.value;
     d = e[0];
@@ -1351,7 +1351,7 @@ function ab(a, b) {
   }
   return c;
 }
-;function bb(a, b, c, d) {
+;function ab(a, b, c, d) {
   for (var e = [], g = 0, f; g < a.index.length; g++) {
     if (f = a.index[g], b >= f.length) {
       b -= f.length;
@@ -1416,12 +1416,12 @@ function S(a) {
     }
     if ("slice" === d) {
       return function(e, g) {
-        return bb(b, e || 0, g || b.length, !1);
+        return ab(b, e || 0, g || b.length, !1);
       };
     }
     if ("splice" === d) {
       return function(e, g) {
-        return bb(b, e || 0, g || b.length, !0);
+        return ab(b, e || 0, g || b.length, !0);
       };
     }
     if ("constructor" === d) {
@@ -1450,10 +1450,10 @@ function T(a) {
   if (!this || this.constructor !== T) {
     return new T(a);
   }
-  this.index = J();
+  this.index = I();
   this.h = [];
   this.size = 0;
-  32 < a ? (this.A = cb, this.B = BigInt(a)) : (this.A = db, this.B = a);
+  32 < a ? (this.A = bb, this.B = BigInt(a)) : (this.A = cb, this.B = a);
 }
 T.prototype.get = function(a) {
   var b = this.A(a);
@@ -1468,10 +1468,10 @@ function U(a) {
   if (!this || this.constructor !== U) {
     return new U(a);
   }
-  this.index = J();
+  this.index = I();
   this.h = [];
   this.size = 0;
-  32 < a ? (this.A = cb, this.B = BigInt(a)) : (this.A = db, this.B = a);
+  32 < a ? (this.A = bb, this.B = BigInt(a)) : (this.A = cb, this.B = a);
 }
 U.prototype.add = function(a) {
   var b = this.A(a), c = this.index[b];
@@ -1487,11 +1487,37 @@ u.delete = U.prototype.delete = function(a) {
   (b = this.index[b]) && b.delete(a) && this.size--;
 };
 u.clear = U.prototype.clear = function() {
-  this.index = J();
+  this.index = I();
   this.h = [];
   this.size = 0;
 };
-u.values = U.prototype.values = function eb() {
+u.values = U.prototype.values = function db() {
+  var b, c = this, d, e, g;
+  return ra(db, function(f) {
+    switch(f.h) {
+      case 1:
+        b = 0;
+      case 2:
+        if (!(b < c.h.length)) {
+          f.h = 0;
+          break;
+        }
+        d = y(c.h[b].values());
+        e = d.next();
+      case 5:
+        if (e.done) {
+          b++;
+          f.h = 2;
+          break;
+        }
+        g = e.value;
+        return D(f, g, 6);
+      case 6:
+        e = d.next(), f.h = 5;
+    }
+  });
+};
+u.keys = U.prototype.keys = function eb() {
   var b, c = this, d, e, g;
   return ra(eb, function(f) {
     switch(f.h) {
@@ -1502,7 +1528,7 @@ u.values = U.prototype.values = function eb() {
           f.h = 0;
           break;
         }
-        d = x(c.h[b].values());
+        d = y(c.h[b].keys());
         e = d.next();
       case 5:
         if (e.done) {
@@ -1511,13 +1537,13 @@ u.values = U.prototype.values = function eb() {
           break;
         }
         g = e.value;
-        return E(f, g, 6);
+        return D(f, g, 6);
       case 6:
         e = d.next(), f.h = 5;
     }
   });
 };
-u.keys = U.prototype.keys = function fb() {
+u.entries = U.prototype.entries = function fb() {
   var b, c = this, d, e, g;
   return ra(fb, function(f) {
     switch(f.h) {
@@ -1528,7 +1554,7 @@ u.keys = U.prototype.keys = function fb() {
           f.h = 0;
           break;
         }
-        d = x(c.h[b].keys());
+        d = y(c.h[b].entries());
         e = d.next();
       case 5:
         if (e.done) {
@@ -1537,39 +1563,13 @@ u.keys = U.prototype.keys = function fb() {
           break;
         }
         g = e.value;
-        return E(f, g, 6);
+        return D(f, g, 6);
       case 6:
         e = d.next(), f.h = 5;
     }
   });
 };
-u.entries = U.prototype.entries = function gb() {
-  var b, c = this, d, e, g;
-  return ra(gb, function(f) {
-    switch(f.h) {
-      case 1:
-        b = 0;
-      case 2:
-        if (!(b < c.h.length)) {
-          f.h = 0;
-          break;
-        }
-        d = x(c.h[b].entries());
-        e = d.next();
-      case 5:
-        if (e.done) {
-          b++;
-          f.h = 2;
-          break;
-        }
-        g = e.value;
-        return E(f, g, 6);
-      case 6:
-        e = d.next(), f.h = 5;
-    }
-  });
-};
-function db(a) {
+function cb(a) {
   var b = Math.pow(2, this.B) - 1;
   if ("number" == typeof a) {
     return a & b;
@@ -1579,7 +1579,7 @@ function db(a) {
   }
   return 32 === this.B ? c + Math.pow(2, 31) : c;
 }
-function cb() {
+function bb() {
   throw Error("The keystore is limited to 32 for EcmaScript5");
 }
 ;V.prototype.add = function(a, b, c) {
@@ -1589,23 +1589,23 @@ function cb() {
       return this.update(a, b);
     }
     for (var d = 0, e; d < this.field.length; d++) {
-      e = this.J[d];
+      e = this.L[d];
       var g = this.index.get(this.field[d]);
       if ("function" === typeof e) {
         (e = e(b)) && g.add(a, e, !1, !0);
       } else {
         var f = e.R;
         if (!f || f(b)) {
-          e.constructor === String ? e = ["" + e] : K(e) && (e = [e]), hb(b, e, this.S, 0, g, a, e[0], c);
+          e.constructor === String ? e = ["" + e] : J(e) && (e = [e]), gb(b, e, this.S, 0, g, a, e[0], c);
         }
       }
     }
     if (this.tag) {
-      for (d = 0; d < this.L.length; d++) {
-        f = this.L[d];
+      for (d = 0; d < this.K.length; d++) {
+        f = this.K[d];
         var h = this.aa[d];
         g = this.tag.get(h);
-        e = J();
+        e = I();
         if ("function" === typeof f) {
           if (f = f(b), !f) {
             continue;
@@ -1619,7 +1619,7 @@ function cb() {
           f = za(b, f);
         }
         if (g && f) {
-          for (K(f) && (f = [f]), h = 0, k = void 0; h < f.length; h++) {
+          for (J(f) && (f = [f]), h = 0, k = void 0; h < f.length; h++) {
             var l = f[h];
             if (!e[l]) {
               e[l] = 1;
@@ -1629,7 +1629,7 @@ function cb() {
                 if (k.length === Math.pow(2, 31) - 1) {
                   m = new S(k);
                   if (this.fastupdate) {
-                    for (var n = x(this.reg.values()), p = n.next(); !p.done; p = n.next()) {
+                    for (var n = y(this.reg.values()), p = n.next(); !p.done; p = n.next()) {
                       p = p.value, p.includes(k) && (p[p.indexOf(k)] = m);
                     }
                   }
@@ -1647,7 +1647,7 @@ function cb() {
     }
     if (this.store && (!c || !this.store.has(a))) {
       if (this.I) {
-        var q = J();
+        var q = I();
         for (c = 0; c < this.I.length; c++) {
           if (d = this.I[c], g = d.R, !g || g(b)) {
             g = void 0;
@@ -1657,11 +1657,11 @@ function cb() {
                 continue;
               }
               d = [d.ja];
-            } else if (K(d) || d.constructor === String) {
+            } else if (J(d) || d.constructor === String) {
               q[d] = b[d];
               continue;
             }
-            ib(b, q, d, 0, d[0], g);
+            hb(b, q, d, 0, d[0], g);
           }
         }
       }
@@ -1671,21 +1671,21 @@ function cb() {
   }
   return this;
 };
-function ib(a, b, c, d, e, g) {
+function hb(a, b, c, d, e, g) {
   a = a[e];
   if (d === c.length - 1) {
     b[e] = g || a;
   } else if (a) {
     if (a.constructor === Array) {
       for (b = b[e] = Array(a.length), e = 0; e < a.length; e++) {
-        ib(a, b, c, d, e);
+        hb(a, b, c, d, e);
       }
     } else {
-      b = b[e] || (b[e] = J()), e = c[++d], ib(a, b, c, d, e);
+      b = b[e] || (b[e] = I()), e = c[++d], hb(a, b, c, d, e);
     }
   }
 }
-function hb(a, b, c, d, e, g, f, h) {
+function gb(a, b, c, d, e, g, f, h) {
   if (a = a[f]) {
     if (d === b.length - 1) {
       if (a.constructor === Array) {
@@ -1701,30 +1701,30 @@ function hb(a, b, c, d, e, g, f, h) {
     } else {
       if (a.constructor === Array) {
         for (f = 0; f < a.length; f++) {
-          hb(a, b, c, d, e, g, f, h);
+          gb(a, b, c, d, e, g, f, h);
         }
       } else {
-        f = b[++d], hb(a, b, c, d, e, g, f, h);
+        f = b[++d], gb(a, b, c, d, e, g, f, h);
       }
     }
   } else {
     e.db && e.remove(g);
   }
 }
-;function jb(a, b, c, d, e, g, f) {
+;function ib(a, b, c, d, e, g, f) {
   var h = a.length, k = [];
-  var l = J();
+  var l = I();
   for (var m = 0, n = void 0, p, q; m < b; m++) {
-    for (var r = 0; r < h; r++) {
-      var w = a[r];
+    for (var t = 0; t < h; t++) {
+      var w = a[t];
       if (m < w.length && (n = w[m])) {
-        for (var t = 0; t < n.length; t++) {
-          p = n[t];
+        for (var r = 0; r < n.length; r++) {
+          p = n[r];
           (w = l[p]) ? l[p]++ : (w = 0, l[p] = 1);
           q = k[w] || (k[w] = []);
           if (!f) {
-            var A = m + (r || !e ? 0 : g || 0);
-            q = q[A] || (q[A] = []);
+            var z = m + (t || !e ? 0 : g || 0);
+            q = q[z] || (q[z] = []);
           }
           q.push(p);
           if (f && c && w === h - 1 && q.length - d === c) {
@@ -1736,7 +1736,7 @@ function hb(a, b, c, d, e, g, f, h) {
   }
   if (a = k.length) {
     if (e) {
-      k = 1 < k.length ? kb(k, c, d, f, g) : (k = k[0]).length > c || d ? k.slice(d, c + d) : k;
+      k = 1 < k.length ? jb(k, c, d, f, g) : (k = k[0]).length > c || d ? k.slice(d, c + d) : k;
     } else {
       if (a < h) {
         return [];
@@ -1769,8 +1769,8 @@ function hb(a, b, c, d, e, g, f, h) {
   }
   return k;
 }
-function kb(a, b, c, d, e) {
-  var g = [], f = J(), h = a.length, k;
+function jb(a, b, c, d, e) {
+  var g = [], f = I(), h = a.length, k;
   if (d) {
     for (e = h - 1; 0 <= e; e--) {
       if (k = (d = a[e]) && d.length) {
@@ -1793,8 +1793,8 @@ function kb(a, b, c, d, e) {
       n = a[m];
       for (var q = 0; q < n.length; q++) {
         if (k = (d = n[q]) && d.length) {
-          for (var r = 0; r < k; r++) {
-            if (l = d[r], !f[l]) {
+          for (var t = 0; t < k; t++) {
+            if (l = d[t], !f[l]) {
               if (f[l] = 1, c) {
                 c--;
               } else {
@@ -1812,8 +1812,8 @@ function kb(a, b, c, d, e) {
   }
   return g;
 }
-function lb(a, b, c) {
-  for (var d = J(), e = [], g = 0, f; g < b.length; g++) {
+function kb(a, b, c) {
+  for (var d = I(), e = [], g = 0, f; g < b.length; g++) {
     f = b[g];
     for (var h = 0; h < f.length; h++) {
       d[f[h]] = 1;
@@ -1832,7 +1832,7 @@ function lb(a, b, c) {
   }
   return e;
 }
-;function mb(a, b, c, d) {
+;function lb(a, b, c, d) {
   if (!a.length) {
     return a;
   }
@@ -1862,7 +1862,7 @@ function lb(a, b, c) {
   e = 1 < e.length ? [].concat.apply([], e) : e[0];
   return d ? W.call(this, e) : e;
 }
-;function nb(a, b, c) {
+;function mb(a, b, c) {
   var d = c[0];
   if (d.then) {
     return Promise.all(c).then(function(q) {
@@ -1908,10 +1908,10 @@ function lb(a, b, c) {
   return {W:d, $:e, limit:g, offset:f, enrich:h, resolve:k, suggest:l};
 }
 ;X.prototype.or = function() {
-  var a = nb(this, "or", arguments);
-  return ob.call(this, a.W, a.$, a.limit, a.offset, a.enrich, a.resolve);
+  var a = mb(this, "or", arguments);
+  return nb.call(this, a.W, a.$, a.limit, a.offset, a.enrich, a.resolve);
 };
-function ob(a, b, c, d, e, g) {
+function nb(a, b, c, d, e, g) {
   if (b.length) {
     var f = this;
     return Promise.all(b).then(function(h) {
@@ -1919,10 +1919,10 @@ function ob(a, b, c, d, e, g) {
       for (var k = 0, l = void 0; k < h.length; k++) {
         (l = h[k]).length && (a[k] = l);
       }
-      return ob.call(f, a, [], c, d, e, g);
+      return nb.call(f, a, [], c, d, e, g);
     });
   }
-  a.length && (this.result.length && a.push(this.result), 2 > a.length ? this.result = a[0] : (this.result = kb(a, c, d, !1, this.h), d = 0));
+  a.length && (this.result.length && a.push(this.result), 2 > a.length ? this.result = a[0] : (this.result = jb(a, c, d, !1, this.h), d = 0));
   return g ? this.resolve(c, d, e) : this;
 }
 ;X.prototype.and = function() {
@@ -1937,7 +1937,36 @@ function ob(a, b, c, d, e, g) {
       var g = b.enrich && c;
     }
   }
-  return a ? (a = nb(this, "and", arguments), pb.call(this, a.W, a.$, a.limit, a.offset, a.enrich, a.resolve, a.suggest)) : c ? this.resolve(d, e, g) : this;
+  return a ? (a = mb(this, "and", arguments), ob.call(this, a.W, a.$, a.limit, a.offset, a.enrich, a.resolve, a.suggest)) : c ? this.resolve(d, e, g) : this;
+};
+function ob(a, b, c, d, e, g, f) {
+  if (b.length) {
+    var h = this;
+    return Promise.all(b).then(function(k) {
+      a = [];
+      for (var l = 0, m = void 0; l < k.length; l++) {
+        (m = k[l]).length && (a[l] = m);
+      }
+      return ob.call(h, a, [], c, d, e, g, f);
+    });
+  }
+  if (a.length) {
+    if (this.result.length && a.unshift(this.result), 2 > a.length) {
+      this.result = a[0];
+    } else {
+      if (b = Aa(a)) {
+        return this.result = ib(a, b, c, d, f, this.h, g), g ? e ? W.call(this.index, this.result) : this.result : this;
+      }
+      this.result = [];
+    }
+  } else {
+    f || (this.result = a);
+  }
+  return g ? this.resolve(c, d, e) : this;
+}
+;X.prototype.xor = function() {
+  var a = mb(this, "xor", arguments);
+  return pb.call(this, a.W, a.$, a.limit, a.offset, a.enrich, a.resolve, a.suggest);
 };
 function pb(a, b, c, d, e, g, f) {
   if (b.length) {
@@ -1954,44 +1983,15 @@ function pb(a, b, c, d, e, g, f) {
     if (this.result.length && a.unshift(this.result), 2 > a.length) {
       this.result = a[0];
     } else {
-      if (b = Aa(a)) {
-        return this.result = jb(a, b, c, d, f, this.h, g), g ? e ? W.call(this.index, this.result) : this.result : this;
-      }
-      this.result = [];
+      return this.result = qb.call(this, a, c, d, g, this.h), g ? e ? W.call(this.index, this.result) : this.result : this;
     }
   } else {
     f || (this.result = a);
   }
   return g ? this.resolve(c, d, e) : this;
 }
-;X.prototype.xor = function() {
-  var a = nb(this, "xor", arguments);
-  return qb.call(this, a.W, a.$, a.limit, a.offset, a.enrich, a.resolve, a.suggest);
-};
-function qb(a, b, c, d, e, g, f) {
-  if (b.length) {
-    var h = this;
-    return Promise.all(b).then(function(k) {
-      a = [];
-      for (var l = 0, m = void 0; l < k.length; l++) {
-        (m = k[l]).length && (a[l] = m);
-      }
-      return qb.call(h, a, [], c, d, e, g, f);
-    });
-  }
-  if (a.length) {
-    if (this.result.length && a.unshift(this.result), 2 > a.length) {
-      this.result = a[0];
-    } else {
-      return this.result = rb.call(this, a, c, d, g, this.h), g ? e ? W.call(this.index, this.result) : this.result : this;
-    }
-  } else {
-    f || (this.result = a);
-  }
-  return g ? this.resolve(c, d, e) : this;
-}
-function rb(a, b, c, d, e) {
-  for (var g = [], f = J(), h = 0, k = 0, l; k < a.length; k++) {
+function qb(a, b, c, d, e) {
+  for (var g = [], f = I(), h = 0, k = 0, l; k < a.length; k++) {
     if (l = a[k]) {
       h < l.length && (h = l.length);
       for (var m = 0, n; m < l.length; m++) {
@@ -2017,9 +2017,9 @@ function rb(a, b, c, d, e) {
                     return g;
                   }
                 } else {
-                  var r = k + (m ? e : 0);
-                  g[r] || (g[r] = []);
-                  g[r].push(q);
+                  var t = k + (m ? e : 0);
+                  g[t] || (g[t] = []);
+                  g[t].push(q);
                   if (++l === b) {
                     return g;
                   }
@@ -2034,10 +2034,10 @@ function rb(a, b, c, d, e) {
   return g;
 }
 ;X.prototype.not = function() {
-  var a = nb(this, "not", arguments);
-  return sb.call(this, a.W, a.$, a.limit, a.offset, a.enrich, a.resolve, a.suggest);
+  var a = mb(this, "not", arguments);
+  return rb.call(this, a.W, a.$, a.limit, a.offset, a.enrich, a.resolve, a.suggest);
 };
-function sb(a, b, c, d, e, g, f) {
+function rb(a, b, c, d, e, g, f) {
   if (b.length) {
     var h = this;
     return Promise.all(b).then(function(k) {
@@ -2045,17 +2045,17 @@ function sb(a, b, c, d, e, g, f) {
       for (var l = 0, m = void 0; l < k.length; l++) {
         (m = k[l]).length && (a[l] = m);
       }
-      return sb.call(h, a, [], c, d, e, g, f);
+      return rb.call(h, a, [], c, d, e, g, f);
     });
   }
   if (a.length && this.result.length) {
-    this.result = tb.call(this, a, c, d, g);
+    this.result = sb.call(this, a, c, d, g);
   } else if (g) {
     return this.resolve(c, d, e);
   }
   return g ? e ? W.call(this.index, this.result) : this.result : this;
 }
-function tb(a, b, c, d) {
+function sb(a, b, c, d) {
   var e = [];
   a = new Set(a.flat().flat());
   for (var g = 0, f, h = 0; g < this.result.length; g++) {
@@ -2128,9 +2128,9 @@ X.prototype.boost = function(a) {
 X.prototype.resolve = function(a, b, c) {
   var d = this.result, e = this.index;
   this.result = this.index = null;
-  return d.length ? ("object" === typeof a && (c = a.enrich, b = a.offset, a = a.limit), mb.call(e, d, a || 100, b, c)) : d;
+  return d.length ? ("object" === typeof a && (c = a.enrich, b = a.offset, a = a.limit), lb.call(e, d, a || 100, b, c)) : d;
 };
-J();
+I();
 V.prototype.search = function(a, b, c, d) {
   c || (!b && xa(a) ? (c = a, a = "") : xa(b) && (c = b, b = 0));
   var e = [], g = [], f, h = 0, k = !0;
@@ -2145,67 +2145,67 @@ V.prototype.search = function(a, b, c, d) {
     k = !1 !== c.resolve;
     if (!k && !l) {
       if (n = n || this.field) {
-        K(n) ? l = n : (n.constructor === Array && 1 === n.length && (n = n[0]), l = n.field || n.index);
+        J(n) ? l = n : (n.constructor === Array && 1 === n.length && (n = n[0]), l = n.field || n.index);
       }
       if (!l) {
         throw Error("Apply resolver on document search requires either the option 'pluck' to be set or just select a single field name in your query.");
       }
     }
     this.store && c.enrich && !k && console.warn("Enrich results can only be done on a final resolver task or when calling .resolve({ enrich: true })");
-    var r = (f = this.store && c.enrich && k) && c.highlight;
+    var t = (f = this.store && c.enrich && k) && c.highlight;
     b = c.limit || b;
     var w = c.offset || 0;
     b || (b = 100);
     if (p && (!this.db || !d)) {
       p.constructor !== Array && (p = [p]);
-      for (var t = [], A = 0, z = void 0; A < p.length; A++) {
-        z = p[A];
-        if (K(z)) {
+      for (var r = [], z = 0, A = void 0; z < p.length; z++) {
+        A = p[z];
+        if (J(A)) {
           throw Error("A tag option can't be a string, instead it needs a { field: tag } format.");
         }
-        if (z.field && z.tag) {
-          var v = z.tag;
+        if (A.field && A.tag) {
+          var v = A.tag;
           if (v.constructor === Array) {
-            for (var y = 0; y < v.length; y++) {
-              t.push(z.field, v[y]);
+            for (var x = 0; x < v.length; x++) {
+              r.push(A.field, v[x]);
             }
           } else {
-            t.push(z.field, v);
+            r.push(A.field, v);
           }
         } else {
-          v = Object.keys(z);
-          y = 0;
-          for (var D = void 0, H = void 0; y < v.length; y++) {
-            if (D = v[y], H = z[D], H.constructor === Array) {
-              for (var I = 0; I < H.length; I++) {
-                t.push(D, H[I]);
+          v = Object.keys(A);
+          x = 0;
+          for (var E = void 0, N = void 0; x < v.length; x++) {
+            if (E = v[x], N = A[E], N.constructor === Array) {
+              for (var H = 0; H < N.length; H++) {
+                r.push(E, N[H]);
               }
             } else {
-              t.push(D, H);
+              r.push(E, N);
             }
           }
         }
       }
-      if (!t.length) {
+      if (!r.length) {
         throw Error("Your tag definition within the search options is probably wrong. No valid tags found.");
       }
-      p = t;
+      p = r;
       if (!a) {
         k = [];
-        if (t.length) {
-          for (g = 0; g < t.length; g += 2) {
-            l = void 0;
+        if (r.length) {
+          for (g = 0; g < r.length; g += 2) {
+            q = void 0;
             if (this.db) {
-              l = this.index.get(t[g]);
-              if (!l) {
-                console.warn("Tag '" + t[g] + ":" + t[g + 1] + "' will be skipped because there is no field '" + t[g] + "'.");
+              q = this.index.get(r[g]);
+              if (!q) {
+                console.warn("Tag '" + r[g] + ":" + r[g + 1] + "' will be skipped because there is no field '" + r[g] + "'.");
                 continue;
               }
-              k.push(l = l.db.tag(t[g + 1], b, w, f));
+              k.push(q = q.db.tag(r[g + 1], b, w, f));
             } else {
-              l = ub.call(this, t[g], t[g + 1], b, w, f);
+              q = tb.call(this, r[g], r[g + 1], b, w, f);
             }
-            e.push({field:t[g], tag:t[g + 1], result:l});
+            e.push({field:r[g], tag:r[g + 1], result:q});
           }
         }
         return k.length ? Promise.all(k).then(function(Q) {
@@ -2219,83 +2219,83 @@ V.prototype.search = function(a, b, c, d) {
     n && n.constructor !== Array && (n = [n]);
   }
   n || (n = this.field);
-  t = !d && (this.worker || this.db) && [];
-  A = 0;
-  for (y = z = v = void 0; A < n.length; A++) {
-    if (z = n[A], !this.db || !this.tag || this.J[A]) {
+  r = !d && (this.worker || this.db) && [];
+  z = 0;
+  for (x = A = v = void 0; z < n.length; z++) {
+    if (A = n[z], !this.db || !this.tag || this.L[z]) {
       v = void 0;
-      K(z) || (v = z, z = v.field, a = v.query || a, b = v.limit || b, w = v.offset || w, q = v.suggest || q, f = this.store && (v.enrich || f));
+      J(A) || (v = A, A = v.field, a = v.query || a, b = v.limit || b, w = v.offset || w, q = v.suggest || q, f = this.store && (v.enrich || f));
       if (d) {
-        v = d[A];
+        v = d[z];
       } else {
-        y = v || c;
-        v = this.index.get(z);
+        x = v || c;
+        v = this.index.get(A);
         if (p) {
           if (this.db) {
-            y.tag = p;
+            x.tag = p;
             var La = v.db.support_tag_search;
-            y.field = n;
+            x.field = n;
           }
-          La || (y.enrich = !1);
+          La || (x.enrich = !1);
         }
-        if (t) {
-          t[A] = v.search(a, b, y);
-          y && f && (y.enrich = f);
+        if (r) {
+          r[z] = v.search(a, b, x);
+          x && f && (x.enrich = f);
           continue;
         } else {
-          v = v.search(a, b, y), y && f && (y.enrich = f);
+          v = v.search(a, b, x), x && f && (x.enrich = f);
         }
       }
-      y = v && (k ? v.length : v.result.length);
-      if (p && y) {
-        D = [];
-        H = 0;
+      x = v && (k ? v.length : v.result.length);
+      if (p && x) {
+        E = [];
+        N = 0;
         if (this.db && d) {
           if (!La) {
-            for (I = n.length; I < d.length; I++) {
-              var M = d[I];
-              if (M && M.length) {
-                H++, D.push(M);
+            for (H = n.length; H < d.length; H++) {
+              var L = d[H];
+              if (L && L.length) {
+                N++, E.push(L);
               } else if (!q) {
                 return k ? e : new X(e);
               }
             }
           }
         } else {
-          I = 0;
-          for (var Xb = M = void 0; I < p.length; I += 2) {
-            M = this.tag.get(p[I]);
-            if (!M) {
-              if (console.warn("Tag '" + p[I] + ":" + p[I + 1] + "' will be skipped because there is no field '" + p[I] + "'."), q) {
+          H = 0;
+          for (var Wb = L = void 0; H < p.length; H += 2) {
+            L = this.tag.get(p[H]);
+            if (!L) {
+              if (console.warn("Tag '" + p[H] + ":" + p[H + 1] + "' will be skipped because there is no field '" + p[H] + "'."), q) {
                 continue;
               } else {
                 return k ? e : new X(e);
               }
             }
-            if (Xb = (M = M && M.get(p[I + 1])) && M.length) {
-              H++, D.push(M);
+            if (Wb = (L = L && L.get(p[H + 1])) && L.length) {
+              N++, E.push(L);
             } else if (!q) {
               return k ? e : new X(e);
             }
           }
         }
-        if (H) {
-          v = lb(v, D, k);
-          y = v.length;
-          if (!y && !q) {
+        if (N) {
+          v = kb(v, E, k);
+          x = v.length;
+          if (!x && !q) {
             return k ? v : new X(v);
           }
-          H--;
+          N--;
         }
       }
-      if (y) {
-        g[h] = z, e.push(v), h++;
+      if (x) {
+        g[h] = A, e.push(v), h++;
       } else if (1 === n.length) {
         return k ? e : new X(e);
       }
     }
   }
-  if (t) {
+  if (r) {
     if (this.db && p && p.length && !La) {
       for (f = 0; f < p.length; f += 2) {
         g = this.index.get(p[f]);
@@ -2306,12 +2306,12 @@ V.prototype.search = function(a, b, c, d) {
             return k ? e : new X(e);
           }
         }
-        t.push(g.db.tag(p[f + 1], b, w, !1));
+        r.push(g.db.tag(p[f + 1], b, w, !1));
       }
     }
-    var Yb = this;
-    return Promise.all(t).then(function(Q) {
-      return Q.length ? Yb.search(a, b, c, Q) : Q;
+    var Xb = this;
+    return Promise.all(r).then(function(Q) {
+      return Q.length ? Xb.search(a, b, c, Q) : Q;
     });
   }
   if (!h) {
@@ -2320,69 +2320,79 @@ V.prototype.search = function(a, b, c, d) {
   if (l && (!f || !this.store)) {
     return e[0];
   }
-  t = [];
+  r = [];
   for (w = 0; w < g.length; w++) {
     q = e[w];
-    f && q.length && "undefined" === typeof q[0].doc && (this.db ? t.push(q = this.index.get(this.field[0]).db.enrich(q)) : q = W.call(this, q));
+    f && q.length && "undefined" === typeof q[0].doc && (this.db ? r.push(q = this.index.get(this.field[0]).db.enrich(q)) : q = W.call(this, q));
     if (l) {
-      return k ? q : new X(q);
+      return k ? t ? ub(a, q, this.index, l, t) : q : new X(q);
     }
     e[w] = {field:g[w], result:q};
   }
-  if (f && this.db && t.length) {
-    var Ma = this;
-    return Promise.all(t).then(function(Q) {
+  if (f && this.db && r.length) {
+    var Yb = this;
+    return Promise.all(r).then(function(Q) {
       for (var R = 0; R < Q.length; R++) {
         e[R].result = Q[R];
       }
-      return m ? vb(e) : r ? wb(e, a, Ma.index, Ma.field, Ma.J, r) : e;
+      return m ? vb(e) : t ? ub(a, e, Yb.index, l, t) : e;
     });
   }
-  return m ? vb(e) : r ? wb(e, a, this.index, this.field, this.J, r) : e;
+  return m ? vb(e) : t ? ub(a, e, this.index, l, t) : e;
 };
-function wb(a, b, c, d, e, g) {
-  for (var f, h, k, l = 0, m, n; l < a.length; l++) {
-    if (m = a[l].field) {
-      var p = a[l].result;
-      k = c.get(m);
-      n = k.encoder;
-      k = k.tokenize;
-      m = e[d.indexOf(m)];
-      n !== f && (f = n, h = f.encode(b));
-      for (var q = 0; q < p.length; q++) {
-        for (var r = "", w = za(p[q].doc, m).split(/\s+/), t = 0, A, z; t < w.length; t++) {
-          A = w[t];
-          z = n.encode(A);
-          z = 1 < z.length ? z.join(" ") : z[0];
-          var v = void 0;
-          if (z && A) {
-            for (var y = 0, D; y < h.length; y++) {
-              if (D = h[y], "strict" === k) {
-                if (z === D) {
-                  r += (r ? " " : "") + g.replace("$1", A);
-                  v = !0;
-                  break;
-                }
-              } else {
-                var H = z.indexOf(D);
-                if (-1 < H) {
-                  r += (r ? " " : "") + A.substring(0, H) + g.replace("$1", A.substring(H, D.length)) + A.substring(H + D.length);
-                  v = !0;
-                  break;
-                }
+function ub(a, b, c, d, e) {
+  for (var g, f, h, k = 0, l, m; k < b.length; k++) {
+    if (d) {
+      var n = b;
+      m = d;
+    } else {
+      l = b[k];
+      m = l.field;
+      if (!m) {
+        continue;
+      }
+      n = l.result;
+    }
+    h = c.get(m);
+    l = h.encoder;
+    h = h.tokenize;
+    l !== g && (g = l, f = g.encode(a));
+    for (var p = 0; p < n.length; p++) {
+      for (var q = "", t = za(n[p].doc, m).split(/\s+/), w = 0, r, z; w < t.length; w++) {
+        r = t[w];
+        z = l.encode(r);
+        z = 1 < z.length ? z.join(" ") : z[0];
+        var A = void 0;
+        if (z && r) {
+          for (var v = 0, x; v < f.length; v++) {
+            if (x = f[v], "strict" === h) {
+              if (z === x) {
+                q += (q ? " " : "") + e.replace("$1", r);
+                A = !0;
+                break;
+              }
+            } else {
+              var E = z.indexOf(x);
+              if (-1 < E) {
+                q += (q ? " " : "") + r.substring(0, E) + e.replace("$1", r.substring(E, x.length)) + r.substring(E + x.length);
+                A = !0;
+                break;
               }
             }
           }
-          v || (r += (r ? " " : "") + w[t]);
         }
-        p[q].highlight = r;
+        A || (q += (q ? " " : "") + t[w]);
       }
+      n[p].highlight = q;
+    }
+    if (d) {
+      break;
     }
   }
-  return a;
+  return b;
 }
 function vb(a) {
-  for (var b = [], c = J(), d = 0, e, g; d < a.length; d++) {
+  for (var b = [], c = I(), d = 0, e, g; d < a.length; d++) {
     e = a[d];
     g = e.result;
     for (var f = 0, h, k, l; f < g.length; f++) {
@@ -2391,7 +2401,7 @@ function vb(a) {
   }
   return b;
 }
-function ub(a, b, c, d, e) {
+function tb(a, b, c, d, e) {
   var g = this.tag.get(a);
   if (!g) {
     return console.warn("Tag '" + a + "' was not found"), [];
@@ -2418,10 +2428,10 @@ function W(a) {
     return new V(a);
   }
   var b = a.document || a.doc || a, c, d;
-  this.J = [];
+  this.L = [];
   this.field = [];
   this.S = [];
-  this.key = (c = b.key || b.id) && xb(c, this.S) || "id";
+  this.key = (c = b.key || b.id) && wb(c, this.S) || "id";
   (d = a.keystore || 0) && (this.keystore = d);
   this.fastupdate = !!a.fastupdate;
   this.reg = !this.fastupdate || a.worker || a.db ? d ? new U(d) : new Set() : d ? new T(d) : new Map();
@@ -2431,12 +2441,12 @@ function W(a) {
   a.cache = !1;
   this.worker = a.worker;
   this.priority = a.priority || 4;
-  this.index = yb.call(this, a, b);
+  this.index = xb.call(this, a, b);
   this.tag = null;
   if (c = b.tag) {
     if ("string" === typeof c && (c = [c]), c.length) {
       this.tag = new Map();
-      this.L = [];
+      this.K = [];
       this.aa = [];
       b = 0;
       for (var e = d = void 0; b < c.length; b++) {
@@ -2445,7 +2455,7 @@ function W(a) {
         if (!e) {
           throw Error("The tag field from the document descriptor is undefined.");
         }
-        d.custom ? this.L[b] = d.custom : (this.L[b] = xb(e, this.S), d.filter && ("string" === typeof this.L[b] && (this.L[b] = new String(this.L[b])), this.L[b].R = d.filter));
+        d.custom ? this.K[b] = d.custom : (this.K[b] = wb(e, this.S), d.filter && ("string" === typeof this.K[b] && (this.K[b] = new String(this.K[b])), this.K[b].R = d.filter));
         this.aa[b] = e;
         this.tag.set(e, new Map());
       }
@@ -2454,14 +2464,14 @@ function W(a) {
   if (this.worker) {
     this.fastupdate = !1;
     a = [];
-    c = x(this.index.values());
+    c = y(this.index.values());
     for (b = c.next(); !b.done; b = c.next()) {
       b = b.value, b.then && a.push(b);
     }
     if (a.length) {
       var g = this;
       return Promise.all(a).then(function(f) {
-        for (var h = 0, k = x(g.index.entries()), l = k.next(); !l.done; l = k.next()) {
+        for (var h = 0, k = y(g.index.entries()), l = k.next(); !l.done; l = k.next()) {
           l = l.value;
           var m = l[0];
           l[1].then && g.index.set(m, f[h++]);
@@ -2509,45 +2519,45 @@ u.commit = function(a, b) {
   return ta(function(h) {
     if (1 == h.h) {
       d = [];
-      e = x(c.index.values());
+      e = y(c.index.values());
       for (g = e.next(); !g.done; g = e.next()) {
         f = g.value, d.push(f.commit(a, b));
       }
-      return E(h, Promise.all(d), 2);
+      return D(h, Promise.all(d), 2);
     }
     c.reg.clear();
     h.h = 0;
   });
 };
 u.destroy = function() {
-  for (var a = [], b = x(this.index.values()), c = b.next(); !c.done; c = b.next()) {
+  for (var a = [], b = y(this.index.values()), c = b.next(); !c.done; c = b.next()) {
     a.push(c.value.destroy());
   }
   return Promise.all(a);
 };
-function yb(a, b) {
+function xb(a, b) {
   var c = new Map(), d = b.index || b.field || b;
-  K(d) && (d = [d]);
+  J(d) && (d = [d]);
   for (var e = 0, g, f = void 0; e < d.length; e++) {
     g = d[e];
-    K(g) || (f = g, g = g.field);
+    J(g) || (f = g, g = g.field);
     f = xa(f) ? Object.assign({}, a, f) : a;
     if (this.worker) {
-      var h = new Sa(f);
+      var h = new Ra(f);
       c.set(g, h);
     }
     this.worker || c.set(g, new O(f, this.reg));
-    f.custom ? this.J[e] = f.custom : (this.J[e] = xb(g, this.S), f.filter && ("string" === typeof this.J[e] && (this.J[e] = new String(this.J[e])), this.J[e].R = f.filter));
+    f.custom ? this.L[e] = f.custom : (this.L[e] = wb(g, this.S), f.filter && ("string" === typeof this.L[e] && (this.L[e] = new String(this.L[e])), this.L[e].R = f.filter));
     this.field[e] = g;
   }
   if (this.I) {
-    for (a = b.store, K(a) && (a = [a]), b = 0; b < a.length; b++) {
-      d = a[b], e = d.field || d, d.custom ? (this.I[b] = d.custom, d.custom.ja = e) : (this.I[b] = xb(e, this.S), d.filter && ("string" === typeof this.I[b] && (this.I[b] = new String(this.I[b])), this.I[b].R = d.filter));
+    for (a = b.store, J(a) && (a = [a]), b = 0; b < a.length; b++) {
+      d = a[b], e = d.field || d, d.custom ? (this.I[b] = d.custom, d.custom.ja = e) : (this.I[b] = wb(e, this.S), d.filter && ("string" === typeof this.I[b] && (this.I[b] = new String(this.I[b])), this.I[b].R = d.filter));
     }
   }
   return c;
 }
-function xb(a, b) {
+function wb(a, b) {
   for (var c = a.split(":"), d = 0, e = 0; e < c.length; e++) {
     a = c[e], "]" === a[a.length - 1] && (a = a.substring(0, a.length - 2)) && (b[d] = !0), a && (c[d++] = a);
   }
@@ -2562,14 +2572,14 @@ u.update = function(a, b) {
 };
 u.remove = function(a) {
   xa(a) && (a = za(a, this.key));
-  for (var b = x(this.index.values()), c = b.next(); !c.done; c = b.next()) {
+  for (var b = y(this.index.values()), c = b.next(); !c.done; c = b.next()) {
     c.value.remove(a, !0);
   }
   if (this.reg.has(a)) {
     if (this.tag && !this.fastupdate) {
-      for (b = x(this.tag.values()), c = b.next(); !c.done; c = b.next()) {
+      for (b = y(this.tag.values()), c = b.next(); !c.done; c = b.next()) {
         c = c.value;
-        for (var d = x(c), e = d.next(); !e.done; e = d.next()) {
+        for (var d = y(c), e = d.next(); !e.done; e = d.next()) {
           var g = e.value;
           e = g[0];
           g = g[1];
@@ -2585,11 +2595,11 @@ u.remove = function(a) {
   return this;
 };
 u.clear = function() {
-  for (var a = [], b = x(this.index.values()), c = b.next(); !c.done; c = b.next()) {
+  for (var a = [], b = y(this.index.values()), c = b.next(); !c.done; c = b.next()) {
     c = c.value.clear(), c.then && a.push(c);
   }
   if (this.tag) {
-    for (b = x(this.tag.values()), c = b.next(); !c.done; c = b.next()) {
+    for (b = y(this.tag.values()), c = b.next(); !c.done; c = b.next()) {
       c.value.clear();
     }
   }
@@ -2601,7 +2611,7 @@ u.contain = function(a) {
   return this.db ? this.index.get(this.field[0]).db.has(a) : this.reg.has(a);
 };
 u.cleanup = function() {
-  for (var a = x(this.index.values()), b = a.next(); !b.done; b = a.next()) {
+  for (var a = y(this.index.values()), b = a.next(); !b.done; b = a.next()) {
     b.value.cleanup();
   }
   return this;
@@ -2616,7 +2626,7 @@ u.set = function(a, b) {
   this.store.set(a, b);
   return this;
 };
-u.searchCache = zb;
+u.searchCache = yb;
 u.export = function(a, b, c, d) {
   c = void 0 === c ? 0 : c;
   d = void 0 === d ? 0 : d;
@@ -2633,23 +2643,23 @@ u.export = function(a, b, c, d) {
   switch(d) {
     case 0:
       var f = "reg";
-      var h = Ya(this.reg);
+      var h = Xa(this.reg);
       b = null;
       break;
     case 1:
       f = "tag";
-      h = this.tag && Wa(this.tag, this.reg.size);
+      h = this.tag && Va(this.tag, this.reg.size);
       b = null;
       break;
     case 2:
       f = "doc";
-      h = this.store && Ua(this.store);
+      h = this.store && Ta(this.store);
       b = null;
       break;
     default:
       return;
   }
-  return $a.call(this, a, b, f, h, c, d);
+  return Za.call(this, a, b, f, h, c, d);
 };
 u.import = function(a, b) {
   var c = a.split(".");
@@ -2667,13 +2677,13 @@ u.import = function(a, b) {
     switch(c) {
       case "reg":
         this.fastupdate = !1;
-        this.reg = Za(b, this.reg);
+        this.reg = Ya(b, this.reg);
         for (b = 0; b < this.field.length; b++) {
           d = this.index.get(this.field[b]), d.fastupdate = !1, d.reg = this.reg;
         }
         if (this.worker) {
           b = [];
-          d = x(this.index.values());
+          d = y(this.index.values());
           for (c = d.next(); !c.done; c = d.next()) {
             b.push(c.value.import(a));
           }
@@ -2681,15 +2691,15 @@ u.import = function(a, b) {
         }
         break;
       case "tag":
-        this.tag = Xa(b, this.tag);
+        this.tag = Wa(b, this.tag);
         break;
       case "doc":
-        this.store = Va(b, this.store);
+        this.store = Ua(b, this.store);
     }
   }
 };
 Ja(V.prototype);
-function zb(a, b, c) {
+function yb(a, b, c) {
   var d = ("object" === typeof a ? "" + a.query : a).toLowerCase();
   this.cache || (this.cache = new Y());
   var e = this.cache.get(d);
@@ -2721,7 +2731,7 @@ Y.prototype.get = function(a) {
   return b;
 };
 Y.prototype.remove = function(a) {
-  for (var b = x(this.cache), c = b.next(); !c.done; c = b.next()) {
+  for (var b = y(this.cache), c = b.next(); !c.done; c = b.next()) {
     c = c.value;
     var d = c[0];
     c[1].includes(a) && this.cache.delete(d);
@@ -2731,18 +2741,18 @@ Y.prototype.clear = function() {
   this.cache.clear();
   this.h = "";
 };
-var Ab = {normalize:!1, numeric:!1, dedupe:!1};
-var Bb = {};
-var Cb = new Map([["b", "p"], ["v", "f"], ["w", "f"], ["z", "s"], ["x", "s"], ["d", "t"], ["n", "m"], ["c", "k"], ["g", "k"], ["j", "k"], ["q", "k"], ["i", "e"], ["y", "e"], ["u", "o"]]);
-var Db = new Map([["ae", "a"], ["oe", "o"], ["sh", "s"], ["kh", "k"], ["th", "t"], ["ph", "f"], ["pf", "f"]]), Eb = [/([^aeo])h(.)/g, "$1$2", /([aeo])h([^aeo]|$)/g, "$1$2", /(.)\1+/g, "$1"];
-var Fb = {a:"", e:"", i:"", o:"", u:"", y:"", b:1, f:1, p:1, v:1, c:2, g:2, j:2, k:2, q:2, s:2, x:2, z:2, "\u00df":2, d:3, t:3, l:4, m:5, n:5, r:6};
-var Gb = {Exact:Ab, Default:Bb, Normalize:Bb, LatinBalance:{mapper:Cb}, LatinAdvanced:{mapper:Cb, matcher:Db, replacer:Eb}, LatinExtra:{mapper:Cb, replacer:Eb.concat([/(?!^)[aeo]/g, ""]), matcher:Db}, LatinSoundex:{dedupe:!1, include:{letter:!0}, finalize:function(a) {
+var zb = {normalize:!1, numeric:!1, dedupe:!1};
+var Ab = {};
+var Bb = new Map([["b", "p"], ["v", "f"], ["w", "f"], ["z", "s"], ["x", "s"], ["d", "t"], ["n", "m"], ["c", "k"], ["g", "k"], ["j", "k"], ["q", "k"], ["i", "e"], ["y", "e"], ["u", "o"]]);
+var Cb = new Map([["ae", "a"], ["oe", "o"], ["sh", "s"], ["kh", "k"], ["th", "t"], ["ph", "f"], ["pf", "f"]]), Db = [/([^aeo])h(.)/g, "$1$2", /([aeo])h([^aeo]|$)/g, "$1$2", /(.)\1+/g, "$1"];
+var Eb = {a:"", e:"", i:"", o:"", u:"", y:"", b:1, f:1, p:1, v:1, c:2, g:2, j:2, k:2, q:2, s:2, x:2, z:2, "\u00df":2, d:3, t:3, l:4, m:5, n:5, r:6};
+var Fb = {Exact:zb, Default:Ab, Normalize:Ab, LatinBalance:{mapper:Bb}, LatinAdvanced:{mapper:Bb, matcher:Cb, replacer:Db}, LatinExtra:{mapper:Bb, replacer:Db.concat([/(?!^)[aeo]/g, ""]), matcher:Cb}, LatinSoundex:{dedupe:!1, include:{letter:!0}, finalize:function(a) {
   for (var b = 0; b < a.length; b++) {
-    for (var c = a[b], d = c.charAt(0), e = Fb[d], g = 1, f; g < c.length && (f = c.charAt(g), "h" === f || "w" === f || !(f = Fb[f]) || f === e || (d += f, e = f, 4 !== d.length)); g++) {
+    for (var c = a[b], d = c.charAt(0), e = Eb[d], g = 1, f; g < c.length && (f = c.charAt(g), "h" === f || "w" === f || !(f = Eb[f]) || f === e || (d += f, e = f, 4 !== d.length)); g++) {
     }
     a[b] = d;
   }
-}}, CJK:{split:""}, LatinExact:Ab, LatinDefault:Bb, LatinSimple:Bb};
+}}, CJK:{split:""}, LatinExact:zb, LatinDefault:Ab, LatinSimple:Ab};
 O.prototype.remove = function(a, b) {
   var c = this.reg.size && (this.fastupdate ? this.reg.get(a) : this.reg.has(a));
   if (c) {
@@ -2758,15 +2768,15 @@ O.prototype.remove = function(a, b) {
         }
       }
     } else {
-      Hb(this.map, a), this.depth && Hb(this.ctx, a);
+      Gb(this.map, a), this.depth && Gb(this.ctx, a);
     }
     b || this.reg.delete(a);
   }
-  this.db && (this.commit_task.push({del:a}), this.ca && Ib(this));
+  this.db && (this.commit_task.push({del:a}), this.ca && Hb(this));
   this.cache && this.cache.remove(a);
   return this;
 };
-function Hb(a, b) {
+function Gb(a, b) {
   var c = 0, d = "undefined" === typeof b;
   if (a.constructor === Array) {
     for (var e = 0, g = void 0, f; e < a.length; e++) {
@@ -2784,13 +2794,13 @@ function Hb(a, b) {
       }
     }
   } else {
-    for (d = x(a.entries()), e = d.next(); !e.done; e = d.next()) {
-      g = e.value, e = g[0], (g = Hb(g[1], b)) ? c += g : a.delete(e);
+    for (d = y(a.entries()), e = d.next(); !e.done; e = d.next()) {
+      g = e.value, e = g[0], (g = Gb(g[1], b)) ? c += g : a.delete(e);
     }
   }
   return c;
 }
-;var Jb = {memory:{resolution:1}, performance:{resolution:3, fastupdate:!0, context:{depth:1, resolution:1}}, match:{tokenize:"forward"}, score:{resolution:9, context:{depth:2, resolution:3}}};
+;var Ib = {memory:{resolution:1}, performance:{resolution:3, fastupdate:!0, context:{depth:1, resolution:1}}, match:{tokenize:"forward"}, score:{resolution:9, context:{depth:2, resolution:3}}};
 O.prototype.add = function(a, b, c, d) {
   if (b && (a || 0 === a)) {
     if (!d && !c && this.reg.has(a)) {
@@ -2798,17 +2808,17 @@ O.prototype.add = function(a, b, c, d) {
     }
     b = this.encoder.encode(b);
     if (d = b.length) {
-      for (var e = J(), g = J(), f = this.depth, h = this.resolution, k = 0; k < d; k++) {
+      for (var e = I(), g = I(), f = this.depth, h = this.resolution, k = 0; k < d; k++) {
         var l = b[this.rtl ? d - 1 - k : k], m = l.length;
         if (m && (f || !g[l])) {
-          var n = this.score ? this.score(b, l, k, null, 0) : Kb(h, d, k), p = "";
+          var n = this.score ? this.score(b, l, k, null, 0) : Jb(h, d, k), p = "";
           switch(this.tokenize) {
             case "full":
               if (2 < m) {
                 n = 0;
                 for (var q; n < m; n++) {
-                  for (var r = m; r > n; r--) {
-                    p = l.substring(n, r), q = this.rtl ? m - 1 - n : n, q = this.score ? this.score(b, l, k, p, q) : Kb(h, d, k, m, q), Lb(this, g, p, q, a, c);
+                  for (var t = m; t > n; t--) {
+                    p = l.substring(n, t), q = this.rtl ? m - 1 - n : n, q = this.score ? this.score(b, l, k, p, q) : Jb(h, d, k, m, q), Kb(this, g, p, q, a, c);
                   }
                 }
                 break;
@@ -2816,25 +2826,25 @@ O.prototype.add = function(a, b, c, d) {
             case "bidirectional":
             case "reverse":
               if (1 < m) {
-                for (r = m - 1; 0 < r; r--) {
-                  p = l[this.rtl ? m - 1 - r : r] + p, q = this.score ? this.score(b, l, k, p, r) : Kb(h, d, k, m, r), Lb(this, g, p, q, a, c);
+                for (t = m - 1; 0 < t; t--) {
+                  p = l[this.rtl ? m - 1 - t : t] + p, q = this.score ? this.score(b, l, k, p, t) : Jb(h, d, k, m, t), Kb(this, g, p, q, a, c);
                 }
                 p = "";
               }
             case "forward":
               if (1 < m) {
-                for (r = 0; r < m; r++) {
-                  p += l[this.rtl ? m - 1 - r : r], Lb(this, g, p, n, a, c);
+                for (t = 0; t < m; t++) {
+                  p += l[this.rtl ? m - 1 - t : t], Kb(this, g, p, n, a, c);
                 }
                 break;
               }
             default:
-              if (Lb(this, g, l, n, a, c), f && 1 < d && k < d - 1) {
-                for (m = J(), p = this.da, n = l, r = Math.min(f + 1, this.rtl ? k + 1 : d - k), q = m[n] = 1; q < r; q++) {
+              if (Kb(this, g, l, n, a, c), f && 1 < d && k < d - 1) {
+                for (m = I(), p = this.da, n = l, t = Math.min(f + 1, this.rtl ? k + 1 : d - k), q = m[n] = 1; q < t; q++) {
                   if ((l = b[this.rtl ? d - 1 - k - q : k + q]) && !m[l]) {
                     m[l] = 1;
-                    var w = this.score ? this.score(b, n, k, l, q - 1) : Kb(p + (d / 2 > p ? 0 : 1), d, k, r - 1, q - 1), t = this.bidirectional && l > n;
-                    Lb(this, e, t ? n : l, w, a, c, t ? l : n);
+                    var w = this.score ? this.score(b, n, k, l, q - 1) : Jb(p + (d / 2 > p ? 0 : 1), d, k, t - 1, q - 1), r = this.bidirectional && l > n;
+                    Kb(this, e, r ? n : l, w, a, c, r ? l : n);
                   }
                 }
               }
@@ -2846,17 +2856,17 @@ O.prototype.add = function(a, b, c, d) {
       b = "";
     }
   }
-  this.db && (b || this.commit_task.push({del:a}), this.ca && Ib(this));
+  this.db && (b || this.commit_task.push({del:a}), this.ca && Hb(this));
   return this;
 };
-function Lb(a, b, c, d, e, g, f) {
+function Kb(a, b, c, d, e, g, f) {
   var h = f ? a.ctx : a.map, k;
   if (!b[c] || f && !(k = b[c])[f]) {
-    if (f ? (b = k || (b[c] = J()), b[f] = 1, (k = h.get(f)) ? h = k : h.set(f, h = new Map())) : b[c] = 1, (k = h.get(c)) ? h = k : h.set(c, h = k = []), h = h[d] || (h[d] = []), !g || !h.includes(e)) {
+    if (f ? (b = k || (b[c] = I()), b[f] = 1, (k = h.get(f)) ? h = k : h.set(f, h = new Map())) : b[c] = 1, (k = h.get(c)) ? h = k : h.set(c, h = k = []), h = h[d] || (h[d] = []), !g || !h.includes(e)) {
       if (h.length === Math.pow(2, 31) - 1) {
         b = new S(h);
         if (a.fastupdate) {
-          for (c = x(a.reg.values()), g = c.next(); !g.done; g = c.next()) {
+          for (c = y(a.reg.values()), g = c.next(); !g.done; g = c.next()) {
             g = g.value, g.includes(h) && (g[g.indexOf(h)] = b);
           }
         }
@@ -2867,7 +2877,7 @@ function Lb(a, b, c, d, e, g, f) {
     }
   }
 }
-function Kb(a, b, c, d, e) {
+function Jb(a, b, c, d, e) {
   return c && 1 < a ? b + (d || 0) <= a ? c + (e || 0) : (a - 1) / (b + (d || 0)) * (c + (e || 0)) + 1 | 0 : 0;
 }
 ;O.prototype.search = function(a, b, c) {
@@ -2890,90 +2900,90 @@ function Kb(a, b, c, d, e) {
   var q = p.length;
   b = b || (g ? 100 : 0);
   if (1 === q) {
-    return Mb.call(this, p[0], "", b, e, g, k, n);
+    return Lb.call(this, p[0], "", b, e, g, k, n);
   }
   f = this.depth && !1 !== f;
   if (2 === q && f && !h) {
-    return Mb.call(this, p[1], p[0], b, e, g, k, n);
+    return Lb.call(this, p[1], p[0], b, e, g, k, n);
   }
-  var r = J(), w = 0;
+  var t = I(), w = 0;
   if (f) {
-    var t = p[0];
+    var r = p[0];
     w = 1;
   }
-  m || 0 === m || (m = t ? this.da : this.resolution);
+  m || 0 === m || (m = r ? this.da : this.resolution);
   if (this.db) {
     if (this.db.search && (a = this.db.search(this, p, b, e, h, g, k, n), !1 !== a)) {
       return a;
     }
-    var A = this;
+    var z = this;
     return function() {
-      var z, v;
-      return ta(function(y) {
-        switch(y.h) {
+      var A, v;
+      return ta(function(x) {
+        switch(x.h) {
           case 1:
-            v = z = void 0;
+            v = A = void 0;
           case 2:
             if (!(w < q)) {
-              y.h = 4;
+              x.h = 4;
               break;
             }
             v = p[w];
-            if (!v || r[v]) {
-              y.h = 5;
+            if (!v || t[v]) {
+              x.h = 5;
               break;
             }
-            r[v] = 1;
-            return E(y, Nb(A, v, t, 0, 0, !1, !1), 6);
+            t[v] = 1;
+            return D(x, Mb(z, v, r, 0, 0, !1, !1), 6);
           case 6:
-            z = y.D;
-            if (z = Ob(z, d, h, m)) {
-              d = z;
-              y.h = 4;
+            A = x.D;
+            if (A = Nb(A, d, h, m)) {
+              d = A;
+              x.h = 4;
               break;
             }
-            t && (h && z && d.length || (t = v));
+            r && (h && A && d.length || (r = v));
           case 5:
-            h && t && w === q - 1 && !d.length && (m = A.resolution, t = "", w = -1, r = J());
+            h && r && w === q - 1 && !d.length && (m = z.resolution, r = "", w = -1, t = I());
             w++;
-            y.h = 2;
+            x.h = 2;
             break;
           case 4:
-            return y.return(Pb(d, m, b, e, h, l, g));
+            return x.return(Ob(d, m, b, e, h, l, g));
         }
       });
     }();
   }
   for (c = a = void 0; w < q; w++) {
-    if ((c = p[w]) && !r[c]) {
-      r[c] = 1;
-      a = Nb(this, c, t, 0, 0, !1, !1);
-      if (a = Ob(a, d, h, m)) {
+    if ((c = p[w]) && !t[c]) {
+      t[c] = 1;
+      a = Mb(this, c, r, 0, 0, !1, !1);
+      if (a = Nb(a, d, h, m)) {
         d = a;
         break;
       }
-      t && (h && a && d.length || (t = c));
+      r && (h && a && d.length || (r = c));
     }
-    h && t && w === q - 1 && !d.length && (m = this.resolution, t = "", w = -1, r = J());
+    h && r && w === q - 1 && !d.length && (m = this.resolution, r = "", w = -1, t = I());
   }
-  return Pb(d, m, b, e, h, l, g);
+  return Ob(d, m, b, e, h, l, g);
 };
-function Pb(a, b, c, d, e, g, f) {
+function Ob(a, b, c, d, e, g, f) {
   var h = a.length, k = a;
   if (1 < h) {
-    k = jb(a, b, c, d, e, g, f);
+    k = ib(a, b, c, d, e, g, f);
   } else if (1 === h) {
-    return f ? mb.call(null, a[0], c, d) : new X(a[0]);
+    return f ? lb.call(null, a[0], c, d) : new X(a[0]);
   }
   return f ? k : new X(k);
 }
-function Mb(a, b, c, d, e, g, f) {
-  a = Nb(this, a, b, c, d, e, g, f);
+function Lb(a, b, c, d, e, g, f) {
+  a = Mb(this, a, b, c, d, e, g, f);
   return this.db ? a.then(function(h) {
     return e ? h || [] : new X(h);
-  }) : a && a.length ? e ? mb.call(this, a, c, d) : new X(a) : e ? [] : new X();
+  }) : a && a.length ? e ? lb.call(this, a, c, d) : new X(a) : e ? [] : new X();
 }
-function Ob(a, b, c, d) {
+function Nb(a, b, c, d) {
   var e = [];
   if (a && a.length) {
     if (a.length <= d) {
@@ -2994,7 +3004,7 @@ function Ob(a, b, c, d) {
     return e;
   }
 }
-function Nb(a, b, c, d, e, g, f, h) {
+function Mb(a, b, c, d, e, g, f, h) {
   var k;
   c && (k = a.bidirectional && b > c) && (k = c, c = b, b = k);
   if (a.db) {
@@ -3008,13 +3018,13 @@ function Nb(a, b, c, d, e, g, f, h) {
     return new O(a);
   }
   if (a) {
-    var c = K(a) ? a : a.preset;
-    c && (Jb[c] || console.warn("Preset not found: " + c), a = Object.assign({}, Jb[c], a));
+    var c = J(a) ? a : a.preset;
+    c && (Ib[c] || console.warn("Preset not found: " + c), a = Object.assign({}, Ib[c], a));
   } else {
     a = {};
   }
   c = a.context;
-  var d = !0 === c ? {depth:1} : c || {}, e = K(a.encoder) ? Gb[a.encoder] : a.encode || a.encoder || {};
+  var d = !0 === c ? {depth:1} : c || {}, e = J(a.encoder) ? Fb[a.encoder] : a.encode || a.encoder || {};
   this.encoder = e.encode ? e : "object" === typeof e ? new Ga(e) : {encode:e};
   this.resolution = a.resolution || 9;
   this.tokenize = c = (c = a.tokenize) && "default" !== c && "exact" !== c && c || "strict";
@@ -3052,7 +3062,7 @@ u.destroy = function() {
   this.commit_timer && (clearTimeout(this.commit_timer), this.commit_timer = null);
   return this.db.destroy();
 };
-function Ib(a) {
+function Hb(a) {
   a.commit_timer || (a.commit_timer = setTimeout(function() {
     a.commit_timer = null;
     a.db.commit(a, void 0, void 0);
@@ -3082,18 +3092,18 @@ u.cleanup = function() {
   if (!this.fastupdate) {
     return console.info('Cleanup the index isn\'t required when not using "fastupdate".'), this;
   }
-  Hb(this.map);
-  this.depth && Hb(this.ctx);
+  Gb(this.map);
+  this.depth && Gb(this.ctx);
   return this;
 };
-u.searchCache = zb;
+u.searchCache = yb;
 u.export = function(a, b, c, d) {
   c = void 0 === c ? 0 : c;
   d = void 0 === d ? 0 : d;
   switch(d) {
     case 0:
       var e = "reg";
-      var g = Ya(this.reg);
+      var g = Xa(this.reg);
       break;
     case 1:
       e = "cfg";
@@ -3101,29 +3111,29 @@ u.export = function(a, b, c, d) {
       break;
     case 2:
       e = "map";
-      g = Ua(this.map, this.reg.size);
+      g = Ta(this.map, this.reg.size);
       break;
     case 3:
       e = "ctx";
-      g = Wa(this.ctx, this.reg.size);
+      g = Va(this.ctx, this.reg.size);
       break;
     default:
       return;
   }
-  return $a.call(this, a, b, e, g, c, d);
+  return Za.call(this, a, b, e, g, c, d);
 };
 u.import = function(a, b) {
   if (b) {
     switch("string" === typeof b && (b = JSON.parse(b)), a = a.split("."), "json" === a[a.length - 1] && a.pop(), 3 === a.length && a.shift(), a = 1 < a.length ? a[1] : a[0], a) {
       case "reg":
         this.fastupdate = !1;
-        this.reg = Za(b, this.reg);
+        this.reg = Ya(b, this.reg);
         break;
       case "map":
-        this.map = Va(b, this.map);
+        this.map = Ua(b, this.map);
         break;
       case "ctx":
-        this.ctx = Xa(b, this.ctx);
+        this.ctx = Wa(b, this.ctx);
     }
   }
 };
@@ -3132,18 +3142,18 @@ u.serialize = function(a) {
   var b = "", c = "", d = "";
   if (this.reg.size) {
     var e;
-    c = x(this.reg.keys());
+    c = y(this.reg.keys());
     for (var g = c.next(); !g.done; g = c.next()) {
       g = g.value, e || (e = typeof g), b += (b ? "," : "") + ("string" === e ? '"' + g + '"' : g);
     }
     b = "index.reg=new Set([" + b + "]);";
-    c = ab(this.map, e);
+    c = $a(this.map, e);
     c = "index.map=new Map([" + c + "]);";
-    g = x(this.ctx.entries());
+    g = y(this.ctx.entries());
     for (var f = g.next(); !f.done; f = g.next()) {
       var h = f.value;
       f = h[0];
-      h = ab(h[1], e);
+      h = $a(h[1], e);
       h = "new Map([" + h + "])";
       h = '["' + f + '",' + h + "]";
       d += (d ? "," : "") + h;
@@ -3153,11 +3163,11 @@ u.serialize = function(a) {
   return a ? "function inject(index){" + b + c + d + "}" : b + c + d;
 };
 Ja(O.prototype);
-var Qb = "undefined" !== typeof window && (window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB), Rb = ["map", "ctx", "tag", "reg", "cfg"], Sb = J();
-function Tb(a, b) {
+var Pb = "undefined" !== typeof window && (window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB), Qb = ["map", "ctx", "tag", "reg", "cfg"], Rb = I();
+function Sb(a, b) {
   b = void 0 === b ? {} : b;
   if (!this) {
-    return new Tb(a, b);
+    return new Sb(a, b);
   }
   "object" === typeof a && (b = a, a = a.name);
   a || console.info("Default storage space was used, because a name was not passed.");
@@ -3168,7 +3178,7 @@ function Tb(a, b) {
   this.db = null;
   this.h = {};
 }
-u = Tb.prototype;
+u = Sb.prototype;
 u.mount = function(a) {
   if (!a.encoder) {
     return a.mount(this);
@@ -3182,14 +3192,14 @@ u.open = function() {
   }
   var a = this;
   navigator.storage && navigator.storage.persist();
-  Sb[a.id] || (Sb[a.id] = []);
-  Sb[a.id].push(a.field);
-  var b = Qb.open(a.id, 1);
+  Rb[a.id] || (Rb[a.id] = []);
+  Rb[a.id].push(a.field);
+  var b = Pb.open(a.id, 1);
   b.onupgradeneeded = function() {
-    for (var c = a.db = this.result, d = 0, e; d < Rb.length; d++) {
-      e = Rb[d];
-      for (var g = 0, f; g < Sb[a.id].length; g++) {
-        f = Sb[a.id][g], c.objectStoreNames.contains(e + ("reg" !== e ? f ? ":" + f : "" : "")) || c.createObjectStore(e + ("reg" !== e ? f ? ":" + f : "" : ""));
+    for (var c = a.db = this.result, d = 0, e; d < Qb.length; d++) {
+      e = Qb[d];
+      for (var g = 0, f; g < Rb[a.id].length; g++) {
+        f = Rb[a.id][g], c.objectStoreNames.contains(e + ("reg" !== e ? f ? ":" + f : "" : "")) || c.createObjectStore(e + ("reg" !== e ? f ? ":" + f : "" : ""));
       }
     }
   };
@@ -3205,14 +3215,14 @@ u.close = function() {
   this.db = null;
 };
 u.destroy = function() {
-  var a = Qb.deleteDatabase(this.id);
+  var a = Pb.deleteDatabase(this.id);
   return Z(a);
 };
 u.clear = function() {
-  for (var a = [], b = 0, c; b < Rb.length; b++) {
-    c = Rb[b];
-    for (var d = 0, e; d < Sb[this.id].length; d++) {
-      e = Sb[this.id][d], a.push(c + ("reg" !== c ? e ? ":" + e : "" : ""));
+  for (var a = [], b = 0, c; b < Qb.length; b++) {
+    c = Qb[b];
+    for (var d = 0, e; d < Rb[this.id].length; d++) {
+      e = Rb[this.id][d], a.push(c + ("reg" !== c ? e ? ":" + e : "" : ""));
     }
   }
   b = this.db.transaction(a, "readwrite");
@@ -3316,7 +3326,7 @@ u.commit = function(a, b, c) {
     switch(h.h) {
       case 1:
         if (b) {
-          return E(h, d.clear(), 12);
+          return D(h, d.clear(), 12);
         }
         e = a.commit_task;
         a.commit_task = [];
@@ -3333,7 +3343,7 @@ u.commit = function(a, b, c) {
           h.h = 5;
           break;
         }
-        return E(h, d.clear(), 8);
+        return D(h, d.clear(), 8);
       case 8:
         b = !0;
         h.h = 6;
@@ -3352,7 +3362,7 @@ u.commit = function(a, b, c) {
           h.h = 10;
           break;
         }
-        return E(h, d.remove(e), 11);
+        return D(h, d.remove(e), 11);
       case 11:
       case 10:
         h.h = 3;
@@ -3360,59 +3370,59 @@ u.commit = function(a, b, c) {
       case 12:
         a.commit_task = [];
       case 3:
-        return a.reg.size ? E(h, d.transaction("map", "readwrite", function(k) {
-          for (var l = x(a.map), m = l.next(), n = {}; !m.done; n = {O:void 0, Y:void 0}, m = l.next()) {
+        return a.reg.size ? D(h, d.transaction("map", "readwrite", function(k) {
+          for (var l = y(a.map), m = l.next(), n = {}; !m.done; n = {O:void 0, Y:void 0}, m = l.next()) {
             m = m.value, n.Y = m[0], n.O = m[1], n.O.length && (b ? k.put(n.O, n.Y) : k.get(n.Y).onsuccess = function(p) {
               return function() {
-                var q = this.result, r;
+                var q = this.result, t;
                 if (q && q.length) {
-                  for (var w = Math.max(q.length, p.O.length), t = 0, A; t < w; t++) {
-                    if ((A = p.O[t]) && A.length) {
-                      if ((r = q[t]) && r.length) {
-                        for (var z = 0; z < A.length; z++) {
-                          r.push(A[z]);
+                  for (var w = Math.max(q.length, p.O.length), r = 0, z; r < w; r++) {
+                    if ((z = p.O[r]) && z.length) {
+                      if ((t = q[r]) && t.length) {
+                        for (var A = 0; A < z.length; A++) {
+                          t.push(z[A]);
                         }
                       } else {
-                        q[t] = A;
+                        q[r] = z;
                       }
-                      r = 1;
+                      t = 1;
                     }
                   }
                 } else {
-                  q = p.O, r = 1;
+                  q = p.O, t = 1;
                 }
-                r && k.put(q, p.Y);
+                t && k.put(q, p.Y);
               };
             }(n));
           }
         }), 13) : h.return();
       case 13:
-        return E(h, d.transaction("ctx", "readwrite", function(k) {
-          for (var l = x(a.ctx), m = l.next(), n = {}; !m.done; n = {V:void 0}, m = l.next()) {
+        return D(h, d.transaction("ctx", "readwrite", function(k) {
+          for (var l = y(a.ctx), m = l.next(), n = {}; !m.done; n = {V:void 0}, m = l.next()) {
             m = m.value;
             n.V = m[0];
-            m = x(m[1]);
+            m = y(m[1]);
             for (var p = m.next(), q = {}; !p.done; q = {P:void 0, Z:void 0}, p = m.next()) {
-              p = p.value, q.Z = p[0], q.P = p[1], q.P.length && (b ? k.put(q.P, n.V + ":" + q.Z) : k.get(n.V + ":" + q.Z).onsuccess = function(r, w) {
+              p = p.value, q.Z = p[0], q.P = p[1], q.P.length && (b ? k.put(q.P, n.V + ":" + q.Z) : k.get(n.V + ":" + q.Z).onsuccess = function(t, w) {
                 return function() {
-                  var t = this.result, A;
-                  if (t && t.length) {
-                    for (var z = Math.max(t.length, r.P.length), v = 0, y; v < z; v++) {
-                      if ((y = r.P[v]) && y.length) {
-                        if ((A = t[v]) && A.length) {
-                          for (var D = 0; D < y.length; D++) {
-                            A.push(y[D]);
+                  var r = this.result, z;
+                  if (r && r.length) {
+                    for (var A = Math.max(r.length, t.P.length), v = 0, x; v < A; v++) {
+                      if ((x = t.P[v]) && x.length) {
+                        if ((z = r[v]) && z.length) {
+                          for (var E = 0; E < x.length; E++) {
+                            z.push(x[E]);
                           }
                         } else {
-                          t[v] = y;
+                          r[v] = x;
                         }
-                        A = 1;
+                        z = 1;
                       }
                     }
                   } else {
-                    t = r.P, A = 1;
+                    r = t.P, z = 1;
                   }
-                  A && k.put(t, w.V + ":" + r.Z);
+                  z && k.put(r, w.V + ":" + t.Z);
                 };
               }(q, n));
             }
@@ -3420,8 +3430,8 @@ u.commit = function(a, b, c) {
         }), 14);
       case 14:
         if (a.store) {
-          return E(h, d.transaction("reg", "readwrite", function(k) {
-            for (var l = x(a.store), m = l.next(); !m.done; m = l.next()) {
+          return D(h, d.transaction("reg", "readwrite", function(k) {
+            for (var l = y(a.store), m = l.next(); !m.done; m = l.next()) {
               var n = m.value;
               m = n[0];
               n = n[1];
@@ -3433,8 +3443,8 @@ u.commit = function(a, b, c) {
           h.h = 16;
           break;
         }
-        return E(h, d.transaction("reg", "readwrite", function(k) {
-          for (var l = x(a.reg.keys()), m = l.next(); !m.done; m = l.next()) {
+        return D(h, d.transaction("reg", "readwrite", function(k) {
+          for (var l = y(a.reg.keys()), m = l.next(); !m.done; m = l.next()) {
             k.put(1, m.value);
           }
         }), 16);
@@ -3443,8 +3453,8 @@ u.commit = function(a, b, c) {
           h.h = 20;
           break;
         }
-        return E(h, d.transaction("tag", "readwrite", function(k) {
-          for (var l = x(a.tag), m = l.next(), n = {}; !m.done; n = {X:void 0, ba:void 0}, m = l.next()) {
+        return D(h, d.transaction("tag", "readwrite", function(k) {
+          for (var l = y(a.tag), m = l.next(), n = {}; !m.done; n = {X:void 0, ba:void 0}, m = l.next()) {
             m = m.value, n.ba = m[0], n.X = m[1], n.X.length && (k.get(n.ba).onsuccess = function(p) {
               return function() {
                 var q = this.result;
@@ -3459,7 +3469,7 @@ u.commit = function(a, b, c) {
     }
   });
 };
-function Ub(a, b, c) {
+function Tb(a, b, c) {
   for (var d = a.value, e, g = 0, f = 0, h; f < d.length; f++) {
     if (h = c ? d : d[f]) {
       for (var k = 0, l; k < b.length; k++) {
@@ -3486,17 +3496,17 @@ u.remove = function(a) {
   return Promise.all([this.transaction("map", "readwrite", function(b) {
     b.openCursor().onsuccess = function() {
       var c = this.result;
-      c && Ub(c, a);
+      c && Tb(c, a);
     };
   }), this.transaction("ctx", "readwrite", function(b) {
     b.openCursor().onsuccess = function() {
       var c = this.result;
-      c && Ub(c, a);
+      c && Tb(c, a);
     };
   }), this.transaction("tag", "readwrite", function(b) {
     b.openCursor().onsuccess = function() {
       var c = this.result;
-      c && Ub(c, a, !0);
+      c && Tb(c, a, !0);
     };
   }), this.transaction("reg", "readwrite", function(b) {
     for (var c = 0; c < a.length; c++) {
@@ -3515,8 +3525,8 @@ function Z(a, b) {
     a = null;
   });
 }
-;var Vb = {Index:O, Charset:Gb, Encoder:Ga, Document:V, Worker:Sa, Resolver:X, IndexedDB:Tb, Language:{}}, Wb = "undefined" !== typeof self ? self : "undefined" !== typeof global ? global : self, Zb;
-(Zb = Wb.define) && Zb.amd ? Zb([], function() {
-  return Vb;
-}) : "object" === typeof Wb.exports ? Wb.exports = Vb : Wb.FlexSearch = Vb;
+;var Ub = {Index:O, Charset:Fb, Encoder:Ga, Document:V, Worker:Ra, Resolver:X, IndexedDB:Sb, Language:{}}, Vb = "undefined" !== typeof self ? self : "undefined" !== typeof global ? global : self, Zb;
+(Zb = Vb.define) && Zb.amd ? Zb([], function() {
+  return Ub;
+}) : "object" === typeof Vb.exports ? Vb.exports = Ub : Vb.FlexSearch = Ub;
 }(this||self));
diff --git a/dist/flexsearch.es5.min.js b/dist/flexsearch.es5.min.js
index e64b1b8..908708d 100644
--- a/dist/flexsearch.es5.min.js
+++ b/dist/flexsearch.es5.min.js
@@ -1,14 +1,14 @@
 /**!
- * FlexSearch.js v0.8.154 (ES5)
+ * FlexSearch.js v0.8.155 (ES5)
  * Author and Copyright: Thomas Wilkerling
  * Licence: Apache-2.0
  * Hosted by Nextapps GmbH
  * https://github.com/nextapps-de/flexsearch
  */
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+"readwrite",function(k){for(var l=y(a.map),m=l.next(),n={};!m.done;n={O:void 0,Y:void 0},m=l.next())m=m.value,n.Y=m[0],n.O=m[1],n.O.length&&(b?k.put(n.O,n.Y):k.get(n.Y).onsuccess=function(p){return function(){var q=this.result,r;if(q&&q.length)for(var w=Math.max(q.length,p.O.length),t=0,z;t<w;t++){if((z=p.O[t])&&z.length){if((r=q[t])&&r.length)for(var A=0;A<z.length;A++)r.push(z[A]);else q[t]=z;r=1}}else q=p.O,r=1;r&&k.put(q,p.Y)}}(n))}),13):h.return();case 13:return D(h,d.transaction("ctx","readwrite",
+function(k){for(var l=y(a.ctx),m=l.next(),n={};!m.done;n={V:void 0},m=l.next()){m=m.value;n.V=m[0];m=y(m[1]);for(var p=m.next(),q={};!p.done;q={P:void 0,Z:void 0},p=m.next())p=p.value,q.Z=p[0],q.P=p[1],q.P.length&&(b?k.put(q.P,n.V+":"+q.Z):k.get(n.V+":"+q.Z).onsuccess=function(r,w){return function(){var t=this.result,z;if(t&&t.length)for(var A=Math.max(t.length,r.P.length),v=0,x;v<A;v++){if((x=r.P[v])&&x.length){if((z=t[v])&&z.length)for(var E=0;E<x.length;E++)z.push(x[E]);else t[v]=x;z=1}}else t=
+r.P,z=1;z&&k.put(t,w.V+":"+r.Z)}}(q,n))}}),14);case 14:if(a.store)return D(h,d.transaction("reg","readwrite",function(k){for(var l=y(a.store),m=l.next();!m.done;m=l.next()){var n=m.value;m=n[0];n=n[1];k.put("object"===typeof n?JSON.stringify(n):1,m)}}),16);if(a.bypass){h.h=16;break}return D(h,d.transaction("reg","readwrite",function(k){for(var l=y(a.reg.keys()),m=l.next();!m.done;m=l.next())k.put(1,m.value)}),16);case 16:if(!a.tag){h.h=20;break}return D(h,d.transaction("tag","readwrite",function(k){for(var l=
+y(a.tag),m=l.next(),n={};!m.done;n={X:void 0,ba:void 0},m=l.next())m=m.value,n.ba=m[0],n.X=m[1],n.X.length&&(k.get(n.ba).onsuccess=function(p){return function(){var q=this.result;q=q&&q.length?q.concat(p.X):p.X;k.put(q,p.ba)}}(n))}),20);case 20:a.map.clear(),a.ctx.clear(),a.tag&&a.tag.clear(),a.store&&a.store.clear(),a.document||a.reg.clear(),h.h=0}})};
+function Tb(a,b,c){for(var d=a.value,e,g=0,f=0,h;f<d.length;f++){if(h=c?d:d[f]){for(var k=0,l;k<b.length;k++)if(l=b[k],l=h.indexOf(l),0<=l)if(e=1,1<h.length)h.splice(l,1);else{d[f]=[];break}g+=h.length}if(c)break}g?e&&a.update(d):a.delete();a.continue()}
+u.remove=function(a){"object"!==typeof a&&(a=[a]);return Promise.all([this.transaction("map","readwrite",function(b){b.openCursor().onsuccess=function(){var c=this.result;c&&Tb(c,a)}}),this.transaction("ctx","readwrite",function(b){b.openCursor().onsuccess=function(){var c=this.result;c&&Tb(c,a)}}),this.transaction("tag","readwrite",function(b){b.openCursor().onsuccess=function(){var c=this.result;c&&Tb(c,a,!0)}}),this.transaction("reg","readwrite",function(b){for(var c=0;c<a.length;c++)b.delete(a[c])})])};
+function Z(a,b){return new Promise(function(c,d){a.onsuccess=a.oncomplete=function(){b&&b(this.result);b=null;c(this.result)};a.onerror=a.onblocked=d;a=null})};var Ub={Index:M,Charset:Gb,Encoder:Ga,Document:U,Worker:Sa,Resolver:W,IndexedDB:Sb,Language:{}},Yb="undefined"!==typeof self?self:"undefined"!==typeof global?global:self,Zb;(Zb=Yb.define)&&Zb.amd?Zb([],function(){return Ub}):"object"===typeof Yb.exports?Yb.exports=Ub:Yb.FlexSearch=Ub;}(this||self));
diff --git a/dist/flexsearch.light.debug.js b/dist/flexsearch.light.debug.js
index 1dcaa6a..91dcc3a 100644
--- a/dist/flexsearch.light.debug.js
+++ b/dist/flexsearch.light.debug.js
@@ -1,5 +1,5 @@
 /**!
- * FlexSearch.js v0.8.154 (Light/Debug)
+ * FlexSearch.js v0.8.155 (Light/Debug)
  * Author and Copyright: Thomas Wilkerling
  * Licence: Apache-2.0
  * Hosted by Nextapps GmbH
diff --git a/dist/flexsearch.light.min.js b/dist/flexsearch.light.min.js
index f0aebcf..5066a54 100644
--- a/dist/flexsearch.light.min.js
+++ b/dist/flexsearch.light.min.js
@@ -1,5 +1,5 @@
 /**!
- * FlexSearch.js v0.8.154 (Light)
+ * FlexSearch.js v0.8.155 (Light)
  * Author and Copyright: Thomas Wilkerling
  * Licence: Apache-2.0
  * Hosted by Nextapps GmbH
diff --git a/dist/flexsearch.light.module.debug.js b/dist/flexsearch.light.module.debug.js
index 8ab45aa..5c75cea 100644
--- a/dist/flexsearch.light.module.debug.js
+++ b/dist/flexsearch.light.module.debug.js
@@ -1,5 +1,5 @@
 /**!
- * FlexSearch.js v0.8.154 (Bundle/Debug)
+ * FlexSearch.js v0.8.155 (Bundle/Debug)
  * Author and Copyright: Thomas Wilkerling
  * Licence: Apache-2.0
  * Hosted by Nextapps GmbH
diff --git a/dist/flexsearch.light.module.min.js b/dist/flexsearch.light.module.min.js
index edfd126..a06231c 100644
--- a/dist/flexsearch.light.module.min.js
+++ b/dist/flexsearch.light.module.min.js
@@ -1,5 +1,5 @@
 /**!
- * FlexSearch.js v0.8.154 (Bundle)
+ * FlexSearch.js v0.8.155 (Bundle)
  * Author and Copyright: Thomas Wilkerling
  * Licence: Apache-2.0
  * Hosted by Nextapps GmbH
diff --git a/dist/module-debug/document/search.js b/dist/module-debug/document/search.js
index 8f2a8cc..16fa783 100644
--- a/dist/module-debug/document/search.js
+++ b/dist/module-debug/document/search.js
@@ -408,7 +408,7 @@ Document.prototype.search = function (query, limit, options, _promises) {
         }
 
         if (pluck) {
-            return resolve ? /** @type {SearchResults|EnrichedSearchResults} */res : new Resolver( /** @type {IntermediateSearchResults} */res);
+            return resolve ? highlight ? highlight_fields( /** @type {string} */query, res, this.index, pluck, highlight) : /** @type {SearchResults|EnrichedSearchResults} */res : new Resolver( /** @type {IntermediateSearchResults} */res);
         }
 
         result[i] = {
@@ -423,23 +423,22 @@ Document.prototype.search = function (query, limit, options, _promises) {
             for (let j = 0; j < promises.length; j++) {
                 result[j].result = promises[j];
             }
-            return merge ? merge_fields(result) : highlight ? highlight_fields(result, /** @type {string} */query, self.index, self.field, self.tree, highlight) : /** @type {DocumentSearchResults} */result;
+            return merge ? merge_fields(result) : highlight ? highlight_fields( /** @type {string} */query, result, self.index, pluck, highlight) : /** @type {DocumentSearchResults} */result;
         });
     }
 
-    return merge ? merge_fields(result) : highlight ? highlight_fields(result, /** @type {string} */query, this.index, this.field, this.tree, highlight) : /** @type {DocumentSearchResults} */result;
+    return merge ? merge_fields(result) : highlight ? highlight_fields( /** @type {string} */query, result, this.index, pluck, highlight) : /** @type {DocumentSearchResults} */result;
 };
 
 /**
- * @param {EnrichedDocumentSearchResults} result
  * @param {string} query
+ * @param {EnrichedDocumentSearchResults|EnrichedSearchResults} result
  * @param {Map<string, Index>} index
- * @param {string} field
- * @param {Array<string>} tree
+ * @param {string} pluck
  * @param {string} template
- * @return {EnrichedDocumentSearchResults}
+ * @return {EnrichedDocumentSearchResults|EnrichedSearchResults}
  */
-function highlight_fields(result, query, index, field, tree, template) {
+function highlight_fields(query, result, index, pluck, template) {
 
     // The biggest issue is dealing with custom encoders, for this reason
     // a regular expression can't apply
@@ -454,18 +453,26 @@ function highlight_fields(result, query, index, field, tree, template) {
 
 
     // for every field
-    for (let i = 0, res_field, enc, idx, path; i < result.length; i++) {
-
-        res_field = result[i].field;
-        // skip when not a field entry (e.g. tags)
-        if (!res_field) continue;
+    for (let i = 0, enc, idx, path; i < result.length; i++) {
 
         /** @type {EnrichedSearchResults} */
-        let res = result[i].result;
-        idx = index.get(res_field);
+        let res;
+
+        if (pluck) {
+            res = result;
+            path = pluck;
+        } else {
+            const tmp = result[i];
+            path = tmp.field;
+            if (!path) continue;
+            res = tmp.result;
+        }
+
+        // skip when not a field entry (e.g. tags)
+
+        idx = index.get(path);
         enc = idx.encoder;
         tokenize = idx.tokenize;
-        path = tree[field.indexOf(res_field)];
 
         // re-encode query when encoder has changed
         if (enc !== encoder) {
@@ -528,6 +535,10 @@ function highlight_fields(result, query, index, field, tree, template) {
 
             res[j].highlight = str;
         }
+
+        if (pluck) {
+            break;
+        }
     }
 
     return result;
diff --git a/dist/module-min/document/search.js b/dist/module-min/document/search.js
index 52442a0..201a4dc 100644
--- a/dist/module-min/document/search.js
+++ b/dist/module-min/document/search.js
@@ -1 +1 @@
-import{DocumentSearchOptions,DocumentSearchResults,EnrichedDocumentSearchResults,MergedDocumentSearchResults,MergedDocumentSearchEntry,EnrichedSearchResults,SearchResults,IntermediateSearchResults}from"../type.js";import{create_object,is_array,is_object,is_string,parse_simple}from"../common.js";import{intersect_union}from"../intersect.js";import Document from"../document.js";import Index from"../index.js";import Resolver from"../resolver.js";import tick from"../profiler.js";Document.prototype.search=function(a,b,c,d){!1,c||(!b&&is_object(a)?(c=a,a=""):is_object(b)&&(c=b,b=0));let e,f,g,h,j,k,l,m,n=[],o=[],p=0,q=!0;if(c){if(is_array(c)&&(c={index:c}),a=c.query||a,e=c.pluck,g=c.merge,j=e||c.field||(j=c.index)&&(j.index?null:j),k=this.tag&&c.tag,h=c.suggest,q=!1!==c.resolve,(q||e||(j=j||this.field,j&&(is_string(j)?e=j:(is_array(j)&&1===j.length&&(j=j[0]),e=j.field||j.index))),!1,f=this.store&&c.enrich&&q,m=f&&c.highlight,b=c.limit||b,l=c.offset||0,b||(b=100),k&&(!this.db||!d))){!1,k.constructor!==Array&&(k=[k]);let c=[];for(let a,b=0;b<k.length;b++)if(a=k[b],a.field&&a.tag){const b=a.tag;if(b.constructor===Array)for(let d=0;d<b.length;d++)c.push(a.field,b[d]);else c.push(a.field,b)}else{const b=Object.keys(a);for(let d,e,f=0;f<b.length;f++)if(d=b[f],e=a[d],e.constructor===Array)for(let a=0;a<e.length;a++)c.push(d,e[a]);else c.push(d,e)}if(k=c,!a){let a=[];if(c.length)for(let d=0;d<c.length;d+=2){let e;if(this.db){const g=this.index.get(c[d]);if(!g){continue}!1,a.push(e=g.db.tag(c[d+1],b,l,f))}else!1,e=get_tag.call(this,c[d],c[d+1],b,l,f);n.push({field:c[d],tag:c[d+1],result:e})}return a.length?Promise.all(a).then(function(a){for(let b=0;b<a.length;b++)n[b].result=a[b];return n}):n}}j&&j.constructor!==Array&&(j=[j])}j||(j=this.field);let r,s=!d&&(this.worker||this.db)&&[];for(let e,g,m,t=0;t<j.length;t++){if(g=j[t],this.db&&this.tag&&!this.tree[t])continue;let i;if(is_string(g)||(i=g,g=i.field,a=i.query||a,b=i.limit||b,l=i.offset||l,h=i.suggest||h,f=this.store&&(i.enrich||f)),d)e=d[t];else{let d=i||c,h=this.index.get(g);if(k&&(this.db&&(d.tag=k,r=h.db.support_tag_search,d.field=j),!r&&(d.enrich=!1)),s){s[t]=h.search(a,b,d),d&&f&&(d.enrich=f);continue}else e=h.search(a,b,d),d&&f&&(d.enrich=f)}if(m=e&&(q?e.length:e.result.length),k&&m){const a=[];let b=0;if(!(this.db&&d))for(let c,d,e=0;e<k.length;e+=2){if(!1,c=this.tag.get(k[e]),!c)if(!1,h)continue;else return q?n:new Resolver(n);if(c=c&&c.get(k[e+1]),d=c&&c.length,d)b++,a.push(c);else if(!h)return q?n:new Resolver(n)}else if(!r)for(let c=j.length;c<d.length;c++){let e=d[c],f=e&&e.length;if(f)b++,a.push(e);else if(!h)return q?n:new Resolver(n)}if(b){if(!1,e=intersect_union(e,a,q),m=e.length,!m&&!h)return q?e:new Resolver(e);b--}}if(m)o[p]=g,n.push(e),p++;else if(1===j.length)return q?n:new Resolver(n)}if(s){if(this.db&&k&&k.length&&!r)for(let a=0;a<k.length;a+=2){const c=this.index.get(k[a]);if(!c)if(!1,h)continue;else return q?n:new Resolver(n);!1,s.push(c.db.tag(k[a+1],b,l,!1))}const d=this;return Promise.all(s).then(function(e){return e.length?d.search(a,b,c,e):e})}if(!p)return q?n:new Resolver(n);if(e&&(!f||!this.store))return n[0];s=[];for(let g,h=0;h<o.length;h++){if(g=n[h],f&&g.length&&"undefined"==typeof g[0].doc&&(this.db?(!1,s.push(g=this.index.get(this.field[0]).db.enrich(g))):g=apply_enrich.call(this,g)),e)return q?g:new Resolver(g);n[h]={field:o[h],result:g}}if(f&&!0&&this.db&&s.length){const b=this;return Promise.all(s).then(function(c){for(let a=0;a<c.length;a++)n[a].result=c[a];return g?merge_fields(n):m?highlight_fields(n,a,b.index,b.field,b.tree,m):n})}return g?merge_fields(n):m?highlight_fields(n,a,this.index,this.field,this.tree,m):n};function highlight_fields(a,b,c,d,e,f){let g,h,j;for(let k,l,m,n,o=0;o<a.length;o++){if(k=a[o].field,!k)continue;let i=a[o].result;m=c.get(k),l=m.encoder,j=m.tokenize,n=e[d.indexOf(k)],l!==g&&(g=l,h=g.encode(b));for(let a=0;a<i.length;a++){let b="",c=parse_simple(i[a].doc,n),d=c.split(/\s+/);for(let a,c,e=0;e<d.length;e++){a=d[e],c=l.encode(a),c=1<c.length?c.join(" "):c[0];let g;if(c&&a)for(let d,e=0;e<h.length;e++)if(d=h[e],"strict"!==j){const e=c.indexOf(d);if(-1<e){b+=(b?" ":"")+a.substring(0,e)+f.replace("$1",a.substring(e,d.length))+a.substring(e+d.length),g=!0;break}}else if(c===d){b+=(b?" ":"")+f.replace("$1",a),g=!0;break}g||(b+=(b?" ":"")+d[e])}i[a].highlight=b}}return a}function merge_fields(a){const b=[],c=create_object();for(let d,e,f=0;f<a.length;f++){d=a[f],e=d.result;for(let a,f,g,h=0;h<e.length;h++)f=e[h],"object"!=typeof f&&(f={id:f}),a=f.id,g=c[a],g?g.push(d.field):(f.field=c[a]=[d.field],b.push(f))}return b}function get_tag(a,b,c,d){let e=this.tag.get(a);if(!e)return!1,[];e=e&&e.get(b);e&&e.length-d}export function apply_enrich(a){if(!this||!this.store)return a;const b=Array(a.length);for(let c,d=0;d<a.length;d++)c=a[d],b[d]={id:c,doc:this.store.get(c)};return b}
\ No newline at end of file
+import{DocumentSearchOptions,DocumentSearchResults,EnrichedDocumentSearchResults,MergedDocumentSearchResults,MergedDocumentSearchEntry,EnrichedSearchResults,SearchResults,IntermediateSearchResults}from"../type.js";import{create_object,is_array,is_object,is_string,parse_simple}from"../common.js";import{intersect_union}from"../intersect.js";import Document from"../document.js";import Index from"../index.js";import Resolver from"../resolver.js";import tick from"../profiler.js";Document.prototype.search=function(a,b,c,d){!1,c||(!b&&is_object(a)?(c=a,a=""):is_object(b)&&(c=b,b=0));let e,f,g,h,j,k,l,m,n=[],o=[],p=0,q=!0;if(c){if(is_array(c)&&(c={index:c}),a=c.query||a,e=c.pluck,g=c.merge,j=e||c.field||(j=c.index)&&(j.index?null:j),k=this.tag&&c.tag,h=c.suggest,q=!1!==c.resolve,(q||e||(j=j||this.field,j&&(is_string(j)?e=j:(is_array(j)&&1===j.length&&(j=j[0]),e=j.field||j.index))),!1,f=this.store&&c.enrich&&q,m=f&&c.highlight,b=c.limit||b,l=c.offset||0,b||(b=100),k&&(!this.db||!d))){!1,k.constructor!==Array&&(k=[k]);let c=[];for(let a,b=0;b<k.length;b++)if(a=k[b],a.field&&a.tag){const b=a.tag;if(b.constructor===Array)for(let d=0;d<b.length;d++)c.push(a.field,b[d]);else c.push(a.field,b)}else{const b=Object.keys(a);for(let d,e,f=0;f<b.length;f++)if(d=b[f],e=a[d],e.constructor===Array)for(let a=0;a<e.length;a++)c.push(d,e[a]);else c.push(d,e)}if(k=c,!a){let a=[];if(c.length)for(let d=0;d<c.length;d+=2){let e;if(this.db){const g=this.index.get(c[d]);if(!g){continue}!1,a.push(e=g.db.tag(c[d+1],b,l,f))}else!1,e=get_tag.call(this,c[d],c[d+1],b,l,f);n.push({field:c[d],tag:c[d+1],result:e})}return a.length?Promise.all(a).then(function(a){for(let b=0;b<a.length;b++)n[b].result=a[b];return n}):n}}j&&j.constructor!==Array&&(j=[j])}j||(j=this.field);let r,s=!d&&(this.worker||this.db)&&[];for(let e,g,m,t=0;t<j.length;t++){if(g=j[t],this.db&&this.tag&&!this.tree[t])continue;let i;if(is_string(g)||(i=g,g=i.field,a=i.query||a,b=i.limit||b,l=i.offset||l,h=i.suggest||h,f=this.store&&(i.enrich||f)),d)e=d[t];else{let d=i||c,h=this.index.get(g);if(k&&(this.db&&(d.tag=k,r=h.db.support_tag_search,d.field=j),!r&&(d.enrich=!1)),s){s[t]=h.search(a,b,d),d&&f&&(d.enrich=f);continue}else e=h.search(a,b,d),d&&f&&(d.enrich=f)}if(m=e&&(q?e.length:e.result.length),k&&m){const a=[];let b=0;if(!(this.db&&d))for(let c,d,e=0;e<k.length;e+=2){if(!1,c=this.tag.get(k[e]),!c)if(!1,h)continue;else return q?n:new Resolver(n);if(c=c&&c.get(k[e+1]),d=c&&c.length,d)b++,a.push(c);else if(!h)return q?n:new Resolver(n)}else if(!r)for(let c=j.length;c<d.length;c++){let e=d[c],f=e&&e.length;if(f)b++,a.push(e);else if(!h)return q?n:new Resolver(n)}if(b){if(!1,e=intersect_union(e,a,q),m=e.length,!m&&!h)return q?e:new Resolver(e);b--}}if(m)o[p]=g,n.push(e),p++;else if(1===j.length)return q?n:new Resolver(n)}if(s){if(this.db&&k&&k.length&&!r)for(let a=0;a<k.length;a+=2){const c=this.index.get(k[a]);if(!c)if(!1,h)continue;else return q?n:new Resolver(n);!1,s.push(c.db.tag(k[a+1],b,l,!1))}const d=this;return Promise.all(s).then(function(e){return e.length?d.search(a,b,c,e):e})}if(!p)return q?n:new Resolver(n);if(e&&(!f||!this.store))return n[0];s=[];for(let g,h=0;h<o.length;h++){if(g=n[h],f&&g.length&&"undefined"==typeof g[0].doc&&(this.db?(!1,s.push(g=this.index.get(this.field[0]).db.enrich(g))):g=apply_enrich.call(this,g)),e)return q?m?highlight_fields(a,g,this.index,e,m):g:new Resolver(g);n[h]={field:o[h],result:g}}if(f&&!0&&this.db&&s.length){const b=this;return Promise.all(s).then(function(c){for(let a=0;a<c.length;a++)n[a].result=c[a];return g?merge_fields(n):m?highlight_fields(a,n,b.index,e,m):n})}return g?merge_fields(n):m?highlight_fields(a,n,this.index,e,m):n};function highlight_fields(a,b,c,d,e){let f,g,h;for(let j,k,l,m=0;m<b.length;m++){let i;if(d)i=b,l=d;else{const a=b[m];if(l=a.field,!l)continue;i=a.result}k=c.get(l),j=k.encoder,h=k.tokenize,j!==f&&(f=j,g=f.encode(a));for(let a=0;a<i.length;a++){let b="",c=parse_simple(i[a].doc,l),d=c.split(/\s+/);for(let a,c,f=0;f<d.length;f++){a=d[f],c=j.encode(a),c=1<c.length?c.join(" "):c[0];let i;if(c&&a)for(let d,f=0;f<g.length;f++)if(d=g[f],"strict"!==h){const f=c.indexOf(d);if(-1<f){b+=(b?" ":"")+a.substring(0,f)+e.replace("$1",a.substring(f,d.length))+a.substring(f+d.length),i=!0;break}}else if(c===d){b+=(b?" ":"")+e.replace("$1",a),i=!0;break}i||(b+=(b?" ":"")+d[f])}i[a].highlight=b}if(d)break}return b}function merge_fields(a){const b=[],c=create_object();for(let d,e,f=0;f<a.length;f++){d=a[f],e=d.result;for(let a,f,g,h=0;h<e.length;h++)f=e[h],"object"!=typeof f&&(f={id:f}),a=f.id,g=c[a],g?g.push(d.field):(f.field=c[a]=[d.field],b.push(f))}return b}function get_tag(a,b,c,d){let e=this.tag.get(a);if(!e)return!1,[];e=e&&e.get(b);e&&e.length-d}export function apply_enrich(a){if(!this||!this.store)return a;const b=Array(a.length);for(let c,d=0;d<a.length;d++)c=a[d],b[d]={id:c,doc:this.store.get(c)};return b}
\ No newline at end of file
diff --git a/dist/module/document/search.js b/dist/module/document/search.js
index fba07da..dbf4d66 100644
--- a/dist/module/document/search.js
+++ b/dist/module/document/search.js
@@ -388,7 +388,7 @@ Document.prototype.search = function (query, limit, options, _promises) {
         }
 
         if (pluck) {
-            return resolve ? /** @type {SearchResults|EnrichedSearchResults} */res : new Resolver( /** @type {IntermediateSearchResults} */res);
+            return resolve ? highlight ? highlight_fields( /** @type {string} */query, res, this.index, pluck, highlight) : /** @type {SearchResults|EnrichedSearchResults} */res : new Resolver( /** @type {IntermediateSearchResults} */res);
         }
 
         result[i] = {
@@ -403,23 +403,22 @@ Document.prototype.search = function (query, limit, options, _promises) {
             for (let j = 0; j < promises.length; j++) {
                 result[j].result = promises[j];
             }
-            return merge ? merge_fields(result) : highlight ? highlight_fields(result, /** @type {string} */query, self.index, self.field, self.tree, highlight) : /** @type {DocumentSearchResults} */result;
+            return merge ? merge_fields(result) : highlight ? highlight_fields( /** @type {string} */query, result, self.index, pluck, highlight) : /** @type {DocumentSearchResults} */result;
         });
     }
 
-    return merge ? merge_fields(result) : highlight ? highlight_fields(result, /** @type {string} */query, this.index, this.field, this.tree, highlight) : /** @type {DocumentSearchResults} */result;
+    return merge ? merge_fields(result) : highlight ? highlight_fields( /** @type {string} */query, result, this.index, pluck, highlight) : /** @type {DocumentSearchResults} */result;
 };
 
 /**
- * @param {EnrichedDocumentSearchResults} result
  * @param {string} query
+ * @param {EnrichedDocumentSearchResults|EnrichedSearchResults} result
  * @param {Map<string, Index>} index
- * @param {string} field
- * @param {Array<string>} tree
+ * @param {string} pluck
  * @param {string} template
- * @return {EnrichedDocumentSearchResults}
+ * @return {EnrichedDocumentSearchResults|EnrichedSearchResults}
  */
-function highlight_fields(result, query, index, field, tree, template) {
+function highlight_fields(query, result, index, pluck, template) {
 
     // The biggest issue is dealing with custom encoders, for this reason
     // a regular expression can't apply
@@ -434,18 +433,26 @@ function highlight_fields(result, query, index, field, tree, template) {
 
 
     // for every field
-    for (let i = 0, res_field, enc, idx, path; i < result.length; i++) {
-
-        res_field = result[i].field;
-        // skip when not a field entry (e.g. tags)
-        if (!res_field) continue;
+    for (let i = 0, enc, idx, path; i < result.length; i++) {
 
         /** @type {EnrichedSearchResults} */
-        let res = result[i].result;
-        idx = index.get(res_field);
+        let res;
+
+        if (pluck) {
+            res = result;
+            path = pluck;
+        } else {
+            const tmp = result[i];
+            path = tmp.field;
+            if (!path) continue;
+            res = tmp.result;
+        }
+
+        // skip when not a field entry (e.g. tags)
+
+        idx = index.get(path);
         enc = idx.encoder;
         tokenize = idx.tokenize;
-        path = tree[field.indexOf(res_field)];
 
         // re-encode query when encoder has changed
         if (enc !== encoder) {
@@ -508,6 +515,10 @@ function highlight_fields(result, query, index, field, tree, template) {
 
             res[j].highlight = str;
         }
+
+        if (pluck) {
+            break;
+        }
     }
 
     return result;
diff --git a/package-lock.json b/package-lock.json
index 9a285b8..1709b69 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "flexsearch",
-  "version": "0.8.154",
+  "version": "0.8.155",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "flexsearch",
-      "version": "0.8.154",
+      "version": "0.8.155",
       "funding": [
         {
           "type": "github",
diff --git a/package.json b/package.json
index aa8da44..6fe8271 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "public": true,
   "preferGlobal": false,
   "name": "flexsearch",
-  "version": "0.8.154",
+  "version": "0.8.155",
   "description": "Next-Generation full-text search library for Browser and Node.js",
   "homepage": "https://github.com/nextapps-de/flexsearch/",
   "author": "Thomas Wilkerling",
diff --git a/src/document/search.js b/src/document/search.js
index b8e91ba..6eca77a 100644
--- a/src/document/search.js
+++ b/src/document/search.js
@@ -459,7 +459,9 @@ Document.prototype.search = function(query, limit, options, _promises){
 
         if(pluck){
             return resolve
-                ? /** @type {SearchResults|EnrichedSearchResults} */ (res)
+                ? (highlight
+                    ? highlight_fields(/** @type {string} */ (query), res, this.index, pluck, highlight)
+                    : /** @type {SearchResults|EnrichedSearchResults} */ (res))
                 : new Resolver(/** @type {IntermediateSearchResults} */ (res));
         }
 
@@ -478,7 +480,7 @@ Document.prototype.search = function(query, limit, options, _promises){
             return merge
                 ? merge_fields(result)
                 : highlight
-                    ? highlight_fields(result, /** @type {string} */ (query), self.index, self.field, self.tree, highlight)
+                    ? highlight_fields(/** @type {string} */ (query), result, self.index, pluck, highlight)
                     : /** @type {DocumentSearchResults} */ (
                         result
                     );
@@ -488,22 +490,21 @@ Document.prototype.search = function(query, limit, options, _promises){
     return merge
         ? merge_fields(result)
         : highlight
-            ? highlight_fields(result, /** @type {string} */ (query), this.index, this.field, this.tree, highlight)
+            ? highlight_fields(/** @type {string} */ (query), result, this.index, pluck, highlight)
             : /** @type {DocumentSearchResults} */ (
                 result
             );
 }
 
 /**
- * @param {EnrichedDocumentSearchResults} result
  * @param {string} query
+ * @param {EnrichedDocumentSearchResults|EnrichedSearchResults} result
  * @param {Map<string, Index>} index
- * @param {string} field
- * @param {Array<string>} tree
+ * @param {string} pluck
  * @param {string} template
- * @return {EnrichedDocumentSearchResults}
+ * @return {EnrichedDocumentSearchResults|EnrichedSearchResults}
  */
-function highlight_fields(result, query, index, field, tree, template){
+function highlight_fields(query, result, index, pluck, template){
 
     // The biggest issue is dealing with custom encoders, for this reason
     // a regular expression can't apply
@@ -519,18 +520,27 @@ function highlight_fields(result, query, index, field, tree, template){
     let tokenize;
 
     // for every field
-    for(let i = 0, res_field, enc, idx, path; i < result.length; i++){
-
-        res_field = result[i].field;
-        // skip when not a field entry (e.g. tags)
-        if(!res_field) continue;
+    for(let i = 0, enc, idx, path; i < result.length; i++){
 
         /** @type {EnrichedSearchResults} */
-        let res = result[i].result;
-        idx = index.get(res_field);
+        let res;
+
+        if(pluck){
+            res = result;
+            path = pluck;
+        }
+        else{
+            const tmp = result[i];
+            path = tmp.field;
+            if(!path) continue;
+            res = tmp.result;
+        }
+
+        // skip when not a field entry (e.g. tags)
+
+        idx = index.get(path);
         enc = idx.encoder;
         tokenize = idx.tokenize;
-        path = tree[field.indexOf(res_field)];
 
         // re-encode query when encoder has changed
         if(enc !== encoder){
@@ -596,6 +606,10 @@ function highlight_fields(result, query, index, field, tree, template){
 
             res[j]["highlight"] = str;
         }
+
+        if(pluck){
+            break;
+        }
     }
 
     return result;