[2.0.1]

- Stray xmlns attributes removed from configuration documentation
. Interlinking in configuration documentation added using Injector_PurifierLinkify
. Directives now keep track of aliases to themselves

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1225 48356398-32a2-884e-a903-53898d9a118a

library/HTMLPurifier/Injector/PurifierLinkify.php

@@ -0,0 +1,63 @@
+<?php
+
+require_once 'HTMLPurifier/Injector.php';
+
+HTMLPurifier_ConfigSchema::define(
+    'AutoFormat', 'PurifierLinkify', false, 'bool', '
+<p>
+  Internal auto-formatter that converts configuration directives in
+  syntax <a>%Namespace.Directive</a> to links. This directive has been available
+  since 2.0.1.
+</p>
+');
+
+HTMLPurifier_ConfigSchema::define(
+    'AutoFormatParam', 'PurifierLinkifyDocURL', '#%s', 'string', '
+<p>
+  Location of configuration documentation to link to, let %s substitute
+  into the configuration\'s namespace and directive names sans the percent
+  sign. This directive has been available since 2.0.1.
+</p>
+');
+
+/**
+ * Injector that converts configuration directive syntax %Namespace.Directive
+ * to links
+ */
+class HTMLPurifier_Injector_PurifierLinkify extends HTMLPurifier_Injector
+{
+    
+    var $docURL;
+    
+    function prepare($config, &$context) {
+        parent::prepare($config, $context);
+        $this->docURL = $config->get('AutoFormatParam', 'PurifierLinkifyDocURL');
+    }
+    
+    function handleText(&$token, $config, &$context) {
+        if (!$this->allowsElement('a')) return;
+        if (strpos($token->data, '%') === false) return;
+        
+        $bits = preg_split('#%([a-z0-9]+\.[a-z0-9]+)#Si', $token->data, -1, PREG_SPLIT_DELIM_CAPTURE);
+        $token = array();
+        
+        // $i = index
+        // $c = count
+        // $l = is link
+        for ($i = 0, $c = count($bits), $l = false; $i < $c; $i++, $l = !$l) {
+            if (!$l) {
+                if ($bits[$i] === '') continue;
+                $token[] = new HTMLPurifier_Token_Text($bits[$i]);
+            } else {
+                $token[] = new HTMLPurifier_Token_Start('a',
+                    array('href' => str_replace('%s', $bits[$i], $this->docURL)));
+                $token[] = new HTMLPurifier_Token_Text('%' . $bits[$i]);
+                $token[] = new HTMLPurifier_Token_End('a');
+            }
+        }
+        
+    }
+    
+}
+
+?>