Rename Lexer, separate files. Also augmented benchmarks and benchmarker,

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@79 48356398-32a2-884e-a903-53898d9a118a

Lexer.php

@@ -0,0 +1,32 @@
+<?php
+
+/**
+ * Forgivingly lexes SGML style documents: HTML, XML, XHTML, etc.
+ */
+
+require_once 'HTMLPurifier/Token.php';
+
+class HTMLPurifier_Lexer
+{
+    
+    function tokenizeHTML($string) {
+        trigger_error('Call to abstract class', E_USER_ERROR);
+    }
+    
+    // we don't really care if it's a reference or a copy
+    
+    function create($prototype = null) {
+        static $lexer = null;
+        if ($prototype) {
+            $lexer = $prototype;
+        }
+        if (empty($lexer)) {
+            require_once 'HTMLPurifier/Lexer/DirectLex.php';
+            $lexer = new HTMLPurifier_Lexer_DirectLex();
+        }
+        return $lexer;
+    }
+    
+}
+
+?>