Move classes into Zend style setup.

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@88 48356398-32a2-884e-a903-53898d9a118a

library/HTMLPurifier/Lexer/PEARSax3.php

@@ -0,0 +1,58 @@
+<?php
+
+require_once 'XML/HTMLSax3.php'; // PEAR
+require_once 'HTMLPurifier/Lexer.php';
+
+// uses the PEAR class XML_HTMLSax3 to parse XML
+class HTMLPurifier_Lexer_PEARSax3 extends HTMLPurifier_Lexer
+{
+    
+    var $tokens;
+    
+    function tokenizeHTML($html) {
+        $this->tokens = array();
+        $parser=& new XML_HTMLSax3();
+        $parser->set_object($this);
+        $parser->set_element_handler('openHandler','closeHandler');
+        $parser->set_data_handler('dataHandler');
+        $parser->set_escape_handler('escapeHandler');
+        $parser->set_option('XML_OPTION_ENTITIES_PARSED', 1);
+        $parser->parse($html);
+        return $this->tokens;
+    }
+    
+    function openHandler(&$parser, $name, $attrs, $closed) {
+        if ($closed) {
+            $this->tokens[] = new HTMLPurifier_Token_Empty($name, $attrs);
+        } else {
+            $this->tokens[] = new HTMLPurifier_Token_Start($name, $attrs);
+        }
+        return true;
+    }
+    
+    function closeHandler(&$parser, $name) {
+        // HTMLSax3 seems to always send empty tags an extra close tag
+        // check and ignore if you see it:
+        // [TESTME] to make sure it doesn't overreach
+        if ($this->tokens[count($this->tokens)-1]->type == 'empty') {
+            return true;
+        }
+        $this->tokens[] = new HTMLPurifier_Token_End($name);
+        return true;
+    }
+    
+    function dataHandler(&$parser, $data) {
+        $this->tokens[] = new HTMLPurifier_Token_Text($data);
+        return true;
+    }
+    
+    function escapeHandler(&$parser, $data) {
+        if (strpos($data, '-') === 0) {
+            $this->tokens[] = new HTMLPurifier_Token_Comment($data);
+        }
+        return true;
+    }
+    
+}
+
+?>