Rename MarkupFragment.php to Token.php, change internal class names and rewire the classes. We also started adding more dependence on the Lexer and Generator in unrelated tests.

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@63 48356398-32a2-884e-a903-53898d9a118a

Token.php

@@ -0,0 +1,66 @@
+<?php
+
+// all objects here are immutable
+
+class HTMLPurifier_Token {} // abstract
+
+class HTMLPurifier_Token_Tag extends HTMLPurifier_Token // abstract
+{
+    var $is_tag = true;
+    var $name;
+    function HTMLPurifier_Token_Tag($name) {
+        $this->name = strtolower($name); // for some reason, the SAX parser
+                                         // uses uppercase. Investigate?
+    }
+}
+
+// a rich tag has attributes
+class HTMLPurifier_Token_RichTag extends HTMLPurifier_Token_Tag // abstract
+{
+    var $attributes = array();
+    function HTMLPurifier_Token_RichTag($name, $attributes = array()) {
+        $this->HTMLPurifier_Token_Tag($name);
+        $this->attributes = $attributes;
+    }
+}
+
+class HTMLPurifier_Token_Start extends HTMLPurifier_Token_RichTag
+{
+    var $type = 'start';
+}
+
+class HTMLPurifier_Token_Empty extends HTMLPurifier_Token_RichTag
+{
+    var $type = 'empty';
+}
+
+class HTMLPurifier_Token_End extends HTMLPurifier_Token_Tag
+{
+    var $type = 'end';
+}
+
+class HTMLPurifier_Token_Text extends HTMLPurifier_Token
+{
+    var $name = '#PCDATA';
+    var $type = 'text';
+    var $data;
+    var $is_whitespace = false;
+    function HTMLPurifier_Token_Text($data) {
+        $this->data = $data;
+        if (trim($data, " \n\r\t") === '') $this->is_whitespace = true;
+    }
+    function append($text) {
+        return new HTMLPurifier_Token_Text($this->data . $text->data);
+    }
+}
+
+class HTMLPurifier_Token_Comment extends HTMLPurifier_Token
+{
+    var $data;
+    var $type = 'comment';
+    function HTMLPurifier_Token_Comment($data) {
+        $this->data = $data;
+    }
+}
+
+?>