Relocate JavaScriptPacker where it is used

2 files changed, 729 insertions, 1 deletions

diff --git a/includes/class.JavaScriptPacker.php b/includes/class.JavaScriptPacker.php
new file mode 100755
index 0000000..635d1f5
--- /dev/null
+++ b/includes/class.JavaScriptPacker.php
@@ -0,0 +1,728 @@
+<?php
+/* 7 December 2006. version 1.0
+ * 
+ * This is the php version of the Dean Edwards JavaScript 's Packer,
+ * Based on :
+ * 
+ * ParseMaster, version 1.0.2 (2005-08-19) Copyright 2005, Dean Edwards
+ * a multi-pattern parser.
+ * KNOWN BUG: erroneous behavior when using escapeChar with a replacement
+ * value that is a function
+ * 
+ * packer, version 2.0.2 (2005-08-19) Copyright 2004-2005, Dean Edwards
+ * 
+ * License: http://creativecommons.org/licenses/LGPL/2.1/
+ * 
+ * Ported to PHP by Nicolas Martin.
+ * modified by Mark Fabrizio Jr. to work with php 4 
+ * 
+ * ----------------------------------------------------------------------
+ * 
+ * examples of usage :
+ * $myPacker = new JavaScriptPacker($script, 62, true, false);
+ * $packed = $myPacker->pack();
+ * 
+ * or
+ * 
+ * $myPacker = new JavaScriptPacker($script, 'Normal', true, false);
+ * $packed = $myPacker->pack();
+ * 
+ * or (default values)
+ * 
+ * $myPacker = new JavaScriptPacker($script);
+ * $packed = $myPacker->pack();
+ * 
+ * 
+ * params of the constructor :
+ * $script:       the JavaScript to pack, string.
+ * $encoding:     level of encoding, int or string :
+ *                0,10,62,95 or 'None', 'Numeric', 'Normal', 'High ASCII'.
+ *                default: 62.
+ * $fastDecode:   include the fast decoder in the packed result, boolean.
+ *                default : true.
+ * $specialChars: if you are flagged your private and local variables
+ *                in the script, boolean.
+ *                default: false.
+ * 
+ * The pack() method return the compressed JavasScript, as a string.
+ * 
+ * see http://dean.edwards.name/packer/usage/ for more information.
+ * 
+ * Notes :
+ * # [del]need PHP 5 . Tested with PHP 5.1.2[/del]
+ *   this is a modified version for PHP 4
+ * 
+ * # The packed result may be different than with the Dean Edwards
+ *   version, but with the same length. The reason is that the PHP
+ *   function usort to sort array don't necessarily preserve the
+ *   original order of two equal member. The Javascript sort function
+ *   in fact preserve this order (but that's not require by the
+ *   ECMAScript standard). So the encoded keywords order can be
+ *   different in the two results.
+ * 
+ * # Be careful with the 'High ASCII' Level encoding if you use
+ *   UTF-8 in your files... 
+ */
+
+ /*
+ * modified by Mark Fabrizio Jr. to work with php 4
+ */
+
+class JavaScriptPacker {
+	var $IGNORE = "$1";
+
+	// validate parameters
+	var $_script = "";
+	var $_encoding = 62;
+	var $_fastDecode = true;
+	var $_specialChars = false;
+
+	var $LITERAL_ENCODING = [
+		"None" => 0,
+		"Numeric" => 10,
+		"Normal" => 62,
+		"High ASCII" => 95,
+	];
+
+	function JavaScriptPacker($_script, $_encoding = 62, $_fastDecode = true, $_specialChars = false)
+	{
+		$this->_script = $_script . "\n";
+		if (array_key_exists($_encoding, $this->LITERAL_ENCODING))
+			$_encoding = $this->LITERAL_ENCODING[$_encoding];
+		$this->_encoding = min((int)$_encoding, 95);
+		$this->_fastDecode = $_fastDecode;
+		$this->_specialChars = $_specialChars;
+	}
+
+	function pack() {
+		$this->_addParser("_basicCompression");
+		if ($this->_specialChars)
+			$this->_addParser("_encodeSpecialChars");
+		if ($this->_encoding)
+			$this->_addParser("_encodeKeywords");
+
+		// go!
+		return $this->_pack($this->_script);
+	}
+
+	// apply all parsing routines
+	function _pack($script) {
+		for ($i = 0; isset($this->_parsers[$i]); $i++) {
+			$script = call_user_func([&$this,$this->_parsers[$i]], $script);
+		}
+		return $script;
+	}
+
+	// keep a list of parsing functions, they'll be executed all at once
+	var $_parsers = [];
+	function _addParser($parser) {
+		$this->_parsers[] = $parser;
+	}
+
+	// zero encoding - just removal of white space and comments
+	function _basicCompression($script) {
+		$parser = new ParseMaster();
+		// make safe
+		$parser->escapeChar = '\\';
+		// protect strings
+		$parser->add('/\'[^\'\\n\\r]*\'/',$this->IGNORE);
+		$parser->add('/"[^"\\n\\r]*"/', $this->IGNORE);
+		// remove comments
+		$parser->add('/\\/\\/[^\\n\\r]*[\\n\\r]/', " ");
+		$parser->add('/\\/\\*[^*]*\\*+([^\\/][^*]*\\*+)*\\//', " ");
+		// protect regular expressions
+		$parser->add('/\\s+(\\/[^\\/\\n\\r\\*][^\\/\\n\\r]*\\/g?i?)/', "$2"); // IGNORE
+		$parser->add('/[^\\w\\x24\\/\'"*)\\?:]\\/[^\\/\\n\\r\\*][^\\/\\n\\r]*\\/g?i?/', $this->IGNORE);
+		// remove: ;;; doSomething();
+		if ($this->_specialChars) $parser->add('/;;;[^\\n\\r]+[\\n\\r]/');
+		// remove redundant semi-colons
+		$parser->add('/\\(;;\\)/', $this->IGNORE); // protect for (;;) loops
+		$parser->add('/;+\\s*([};])/', "$2");
+		// apply the above
+		$script = $parser->exec($script);
+
+		// remove white-space
+		$parser->add('/(\\b|\\x24)\\s+(\\b|\\x24)/', "$2 $3");
+		$parser->add('/([+\\-])\\s+([+\\-])/', "$2 $3");
+		$parser->add('/\\s+/', "");
+		// done
+		return $parser->exec($script);
+	}
+
+	function _encodeSpecialChars($script) {
+		$parser = new ParseMaster();
+		// replace: $name -> n, $$name -> na
+		$parser->add('/((\\x24+)([a-zA-Z$_]+))(\\d*)/',
+					 ["fn" => "_replace_name"],
+		);
+		// replace: _name -> _0, double-underscore (__name) is ignored
+		$regexp = '/\\b_[A-Za-z\\d]\\w*/';
+		// build the word list
+		$keywords = $this->_analyze($script, $regexp, "_encodePrivate");
+		// quick ref
+		$encoded = $keywords["encoded"];
+
+		$parser->add($regexp,
+			[
+				"fn" => "_replace_encoded",
+				"data" => $encoded,
+			],
+		);
+		return $parser->exec($script);
+	}
+
+	function _encodeKeywords($script) {
+		// escape high-ascii values already in the script (i.e. in strings)
+		if ($this->_encoding > 62)
+			$script = $this->_escape95($script);
+		// create the parser
+		$parser = new ParseMaster();
+		$encode = $this->_getEncoder($this->_encoding);
+		// for high-ascii, don't encode single character low-ascii
+		$regexp = ($this->_encoding > 62) ? '/\\w\\w+/' : '/\\w+/';
+		// build the word list
+		$keywords = $this->_analyze($script, $regexp, $encode);
+		$encoded = $keywords["encoded"];
+
+		// encode
+		$parser->add($regexp,
+			[
+				"fn" => "_replace_encoded",
+				"data" => $encoded,
+			],
+		);
+		if (empty($script)) return $script;
+
+			//$res = $parser->exec($script);
+			//$res = $this->_bootStrap($res, $keywords);
+			//return $res;
+			return $this->_bootStrap($parser->exec($script), $keywords);
+
+	}
+
+	function _analyze($script, $regexp, $encode) {
+		// analyse
+		// retreive all words in the script
+		$all = [];
+		preg_match_all($regexp, $script, $all);
+		$_sorted = []; // list of words sorted by frequency
+		$_encoded = []; // dictionary of word->encoding
+		$_protected = []; // instances of "protected" words
+		$all = $all[0]; // simulate the javascript comportement of global match
+		if (!empty($all)) {
+			$unsorted = []; // same list, not sorted
+			$protected = []; // "protected" words (dictionary of word->"word")
+			$value = []; // dictionary of charCode->encoding (eg. 256->ff)
+			$this->_count = []; // word->count
+			$i = count($all); $j = 0; //$word = null;
+			// count the occurrences - used for sorting later
+			do {
+				--$i;
+				$word = "$" . $all[$i];
+				if (!isset($this->_count[$word])) {
+					$this->_count[$word] = 0;
+					$unsorted[$j] = $word;
+					// make a dictionary of all of the protected words in this script
+					//  these are words that might be mistaken for encoding
+					//if (is_string($encode) && method_exists($this, $encode))
+					$values[$j] = call_user_func([&$this, $encode], $j);
+					$protected["$" . $values[$j]] = $j++;
+				}
+				// increment the word counter
+				$this->_count[$word]++;
+			} while ($i > 0);
+			// prepare to sort the word list, first we must protect
+			//  words that are also used as codes. we assign them a code
+			//  equivalent to the word itself.
+			// e.g. if "do" falls within our encoding range
+			//      then we store keywords["do"] = "do";
+			// this avoids problems when decoding
+			$i = count($unsorted);
+			do {
+				$word = $unsorted[--$i];
+				if (isset($protected[$word]) /*!= null*/) {
+					$_sorted[$protected[$word]] = substr($word, 1);
+					$_protected[$protected[$word]] = true;
+					$this->_count[$word] = 0;
+				}
+			} while ($i);
+
+			// sort the words by frequency
+			// Note: the javascript and php version of sort can be different :
+			// in php manual, usort :
+			// " If two members compare as equal,
+			// their order in the sorted array is undefined."
+			// so the final packed script is different of the Dean's javascript version
+			// but equivalent.
+			// the ECMAscript standard does not guarantee this behaviour,
+			// and thus not all browsers (e.g. Mozilla versions dating back to at
+			// least 2003) respect this.
+			usort($unsorted, [&$this, "_sortWords"]);
+			$j = 0;
+			// because there are "protected" words in the list
+			//  we must add the sorted words around them
+			do {
+				if (!isset($_sorted[$i]))
+					$_sorted[$i] = substr($unsorted[$j++], 1);
+				$_encoded[$_sorted[$i]] = $values[$i];
+			} while (++$i < count($unsorted));
+		}
+		return [
+			"sorted"  => $_sorted,
+			"encoded" => $_encoded,
+			"protected" => $_protected, ];
+	}
+
+	var $_count = [];
+	function _sortWords($match1, $match2) {
+		return $this->_count[$match2] - $this->_count[$match1];
+	}
+
+	// build the boot function used for loading and decoding
+	function _bootStrap($packed, $keywords) {
+		$ENCODE = $this->_safeRegExp('$encode\\($count\\)');
+
+		// $packed: the packed script
+		$packed = "'" . $this->_escape($packed) . "'";
+
+		// $ascii: base for encoding
+		$ascii = min(count($keywords["sorted"]), $this->_encoding);
+		if ($ascii == 0) $ascii = 1;
+
+		// $count: number of words contained in the script
+		$count = count($keywords["sorted"]);
+
+		// $keywords: list of words contained in the script
+		foreach ($keywords["protected"] as $i=>$value) {
+			$keywords["sorted"][$i] = "";
+		}
+		// convert from a string to an array
+		ksort($keywords["sorted"]);
+		$keywords = "'" . implode("|",$keywords["sorted"]) . "'.split('|')";
+
+		$encode = ($this->_encoding > 62) ? "_encode95" : $this->_getEncoder($ascii);
+		$encode = $this->_getJSFunction($encode);
+		$encode = preg_replace("/_encoding/","$ascii", $encode);
+		$encode = preg_replace('/arguments\\.callee/',"$encode", $encode);
+		$inline = '\\$count' . ($ascii > 10 ? '.toString(\\$ascii)' : "");
+
+		// $decode: code snippet to speed up decoding
+		if ($this->_fastDecode) {
+			// create the decoder
+			$decode = $this->_getJSFunction("_decodeBody");
+			if ($this->_encoding > 62)
+				$decode = preg_replace('/\\\\w/', '[\\xa1-\\xff]', $decode);
+			// perform the encoding inline for lower ascii values
+			elseif ($ascii < 36)
+				$decode = preg_replace($ENCODE, $inline, $decode);
+			// special case: when $count==0 there are no keywords. I want to keep
+			//  the basic shape of the unpacking funcion so i'll frig the code...
+			if ($count == 0)
+				$decode = preg_replace($this->_safeRegExp('($count)\\s*=\\s*1'), "$1=0", $decode, 1);
+		}
+
+		// boot function
+		$unpack = $this->_getJSFunction("_unpack");
+		if ($this->_fastDecode) {
+			// insert the decoder
+			$this->buffer = $decode;
+			$unpack = preg_replace_callback('/\\{/', [&$this, "_insertFastDecode"], $unpack, 1);
+		}
+		$unpack = preg_replace('/"/', "'", $unpack);
+		if ($this->_encoding > 62) { // high-ascii
+			// get rid of the word-boundaries for regexp matches
+			$unpack = preg_replace('/\'\\\\\\\\b\'\s*\\+|\\+\s*\'\\\\\\\\b\'/', "", $unpack);
+		}
+		if ($ascii > 36 || $this->_encoding > 62 || $this->_fastDecode) {
+			// insert the encode function
+			$this->buffer = $encode;
+			$unpack = preg_replace_callback('/\\{/', [&$this, "_insertFastEncode"], $unpack, 1);
+		} else {
+			// perform the encoding inline
+			$unpack = preg_replace($ENCODE, $inline, $unpack);
+		}
+		// pack the boot function too
+		$unpackPacker = new JavaScriptPacker($unpack, 0, false, true);
+		$unpack = $unpackPacker->pack();
+
+		// arguments
+		$params = [$packed, $ascii, $count, $keywords];
+		if ($this->_fastDecode) {
+			$params[] = 0;
+			$params[] = "{}";
+		}
+		$params = implode(",", $params);
+
+		// the whole thing
+		return "eval(" . $unpack . "(" . $params . "));\n";
+	}
+
+	var $buffer;
+	function _insertFastDecode($match) {
+		return "{" . $this->buffer . ";";
+	}
+	function _insertFastEncode($match) {
+		return "{$encode=" . $this->buffer . ";";
+	}
+
+	// mmm.. ..which one do i need ??
+	function _getEncoder($ascii) {
+		return $ascii > 10 ? $ascii > 36 ? $ascii > 62 ?
+			   "_encode95" : "_encode62" : "_encode36" : "_encode10";
+	}
+
+	// zero encoding
+	// characters: 0123456789
+	function _encode10($charCode) {
+		return $charCode;
+	}
+
+	// inherent base36 support
+	// characters: 0123456789abcdefghijklmnopqrstuvwxyz
+	function _encode36($charCode) {
+		return base_convert($charCode, 10, 36);
+	}
+
+	// hitch a ride on base36 and add the upper case alpha characters
+	// characters: 0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
+	function _encode62($charCode) {
+		$res = "";
+		if ($charCode >= $this->_encoding) {
+			$res = $this->_encode62((int)($charCode / $this->_encoding));
+		}
+		$charCode = $charCode % $this->_encoding;
+
+		if ($charCode > 35)
+			return $res . chr($charCode + 29);
+
+			return $res . base_convert($charCode, 10, 36);
+	}
+
+	// use high-ascii values
+	// characters: ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿À�ÂÃÄÅÆÇÈÉÊËÌ�Î��ÑÒÓÔÕÖ×ØÙÚÛÜ�Þßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþ
+	function _encode95($charCode) {
+		$res = "";
+		if ($charCode >= $this->_encoding)
+			$res = $this->_encode95($charCode / $this->_encoding);
+
+		return $res . chr(($charCode % $this->_encoding) + 161);
+	}
+
+	function _safeRegExp($string) {
+		return "/".preg_replace('/\$/', '\\\$', $string)."/";
+	}
+
+	function _encodePrivate($charCode) {
+		return "_" . $charCode;
+	}
+
+	// protect characters used by the parser
+	function _escape($script) {
+		return preg_replace('/([\\\\\'])/', '\\\$1', $script);
+	}
+
+	// protect high-ascii characters already in the script
+	function _escape95($script) {
+		return preg_replace_callback(
+			'/[\\xa1-\\xff]/',
+			[&$this, "_escape95Bis"],
+			$script,
+		);
+	}
+	function _escape95Bis($match) {
+		return '\x'.((string)dechex(ord($match)));
+	}
+
+	function _getJSFunction($aName) {
+		$func = "JSFUNCTION".$aName;
+		if (isset($this->$func)){
+			return $this->$func;
+		}
+
+			return "";
+	}
+
+	// JavaScript Functions used.
+	// Note : In Dean's version, these functions are converted
+	// with 'String(aFunctionName);'.
+	// This internal conversion complete the original code, ex :
+	// 'while (aBool) anAction();' is converted to
+	// 'while (aBool) { anAction(); }'.
+	// The JavaScript functions below are corrected.
+
+	// unpacking function - this is the boot strap function
+	//  data extracted from this packing routine is passed to
+	//  this function when decoded in the target
+	// NOTE ! : without the ';' final.
+	var $JSFUNCTION_unpack = 'function($packed, $ascii, $count, $keywords, $encode, $decode) {
+    while ($count--) {
+        if ($keywords[$count]) {
+            $packed = $packed.replace(new RegExp(\'\\\\b\' + $encode($count) + \'\\\\b\', \'g\'), $keywords[$count]);
+        }
+    }
+    return $packed;
+}';
+/*
+'function($packed, $ascii, $count, $keywords, $encode, $decode) {
+	while ($count--)
+		if ($keywords[$count])
+			$packed = $packed.replace(new RegExp(\'\\\\b\' + $encode($count) + \'\\\\b\', \'g\'), $keywords[$count]);
+	return $packed;
+}';
+*/
+
+	// code-snippet inserted into the unpacker to speed up decoding
+	var $JSFUNCTION_decodeBody = '    if (!\'\'.replace(/^/, String)) {
+        // decode all the values we need
+        while ($count--) {
+            $decode[$encode($count)] = $keywords[$count] || $encode($count);
+        }
+        // global replacement function
+        $keywords = [function ($encoded) {return $decode[$encoded]}];
+        // generic match
+        $encode = function () {return \'\\\\w+\'};
+        // reset the loop counter -  we are now doing a global replace
+        $count = 1;
+    }
+';
+//};
+/*
+'	if (!\'\'.replace(/^/, String)) {
+		// decode all the values we need
+		while ($count--) $decode[$encode($count)] = $keywords[$count] || $encode($count);
+		// global replacement function
+		$keywords = [function ($encoded) {return $decode[$encoded]}];
+		// generic match
+		$encode = function () {return\'\\\\w+\'};
+		// reset the loop counter -  we are now doing a global replace
+		$count = 1;
+	}';
+*/
+
+	 // zero encoding
+	 // characters: 0123456789
+	 var $JSFUNCTION_encode10 = "function($charCode) {
+    return $charCode;
+}";//;';
+
+	 // inherent base36 support
+	 // characters: 0123456789abcdefghijklmnopqrstuvwxyz
+	 var $JSFUNCTION_encode36 = "function($charCode) {
+    return $charCode.toString(36);
+}";//;';
+
+	// hitch a ride on base36 and add the upper case alpha characters
+	// characters: 0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
+	var $JSFUNCTION_encode62 = 'function($charCode) {
+    return ($charCode < _encoding ? \'\' : arguments.callee(parseInt($charCode / _encoding))) +
+    (($charCode = $charCode % _encoding) > 35 ? String.fromCharCode($charCode + 29) : $charCode.toString(36));
+}';
+
+	// use high-ascii values
+	// characters: ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿À�ÂÃÄÅÆÇÈÉÊËÌ�Î��ÑÒÓÔÕÖ×ØÙÚÛÜ�Þßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþ
+	var $JSFUNCTION_encode95 = 'function($charCode) {
+    return ($charCode < _encoding ? \'\' : arguments.callee($charCode / _encoding)) +
+        String.fromCharCode($charCode % _encoding + 161);
+}';
+
+}
+
+class ParseMaster {
+	var $ignoreCase = false;
+	var $escapeChar = "";
+
+	// constants
+	var $EXPRESSION = 0;
+	var $REPLACEMENT = 1;
+	var $LENGTH = 2;
+
+	// used to determine nesting levels
+	var $GROUPS = '/\\(/';//g
+	var $SUB_REPLACE = '/\\$\\d/';
+	var $INDEXED = '/^\\$\\d+$/';
+	var $TRIM = '/([\'"])\\1\\.(.*)\\.\\1\\1$/';
+	var $ESCAPE = '/\\\./';//g
+	var $QUOTE = '/\'/';
+	var $DELETED = '/\\x01[^\\x01]*\\x01/';//g
+
+	function add($expression, $replacement = "") {
+		// count the number of sub-expressions
+		//  - add one because each pattern is itself a sub-expression
+		$length = 1 + preg_match_all($this->GROUPS, $this->_internalEscape((string)$expression), $out);
+
+		// treat only strings $replacement
+		if (is_string($replacement)) {
+			// does the pattern deal with sub-expressions?
+			if (preg_match($this->SUB_REPLACE, $replacement)) {
+				// a simple lookup? (e.g. "$2")
+				if (preg_match($this->INDEXED, $replacement)) {
+					// store the index (used for fast retrieval of matched strings)
+					$replacement = (int)(substr($replacement, 1)) - 1;
+				} else { // a complicated lookup (e.g. "Hello $2 $1")
+					// build a function to do the lookup
+					$quote = preg_match($this->QUOTE, $this->_internalEscape($replacement))
+							 ? '"' : "'";
+					$replacement = [
+						"fn" => "_backReferences",
+						"data" => [
+							"replacement" => $replacement,
+							"length" => $length,
+							"quote" => $quote,
+						],
+					];
+				}
+			}
+		}
+		// pass the modified arguments
+		if (!empty($expression)) $this->_add($expression, $replacement, $length);
+		else $this->_add("/^$/", $replacement, $length);
+	}
+
+	function exec($string) {
+		// execute the global replacement
+		$this->_escaped = [];
+
+		// simulate the _patterns.toSTring of Dean
+		$regexp = "/";
+		foreach ($this->_patterns as $reg) {
+			$regexp .= "(" . substr($reg[$this->EXPRESSION], 1, -1) . ")|";
+		}
+		$regexp = substr($regexp, 0, -1) . "/";
+		$regexp .= ($this->ignoreCase) ? "i" : "";
+
+		$string = $this->_escape($string, $this->escapeChar);
+		$string = preg_replace_callback(
+			$regexp,
+			[
+				&$this,
+				"_replacement",
+			],
+			$string,
+		);
+		$string = $this->_unescape($string, $this->escapeChar);
+
+		return preg_replace($this->DELETED, "", $string);
+	}
+
+	function reset() {
+		// clear the patterns collection so that this object may be re-used
+		$this->_patterns = [];
+	}
+
+	// private
+	var $_escaped = [];  // escaped characters
+	var $_patterns = []; // patterns stored by index
+
+	// create and add a new pattern to the patterns collection
+	function _add() {
+		$arguments = func_get_args();
+		$this->_patterns[] = $arguments;
+	}
+
+	// this is the global replace function (it's quite complicated)
+	function _replacement($arguments) {
+		if (empty($arguments)) return "";
+
+		$i = 1; $j = 0;
+		// loop through the patterns
+		while (isset($this->_patterns[$j])) {
+			$pattern = $this->_patterns[$j++];
+			// do we have a result?
+			if (isset($arguments[$i]) && ($arguments[$i] != "")) {
+				$replacement = $pattern[$this->REPLACEMENT];
+
+				if (is_array($replacement) && isset($replacement["fn"])) {
+
+					if (isset($replacement["data"])) $this->buffer = $replacement["data"];
+					return call_user_func([&$this, $replacement["fn"]], $arguments, $i);
+
+				} elseif (is_int($replacement)) {
+					return $arguments[$replacement + $i];
+
+				}
+				$delete = ($this->escapeChar == "" ||
+						   strpos($arguments[$i], $this->escapeChar) === false)
+						? "" : "\x01" . $arguments[$i] . "\x01";
+				return $delete . $replacement;
+
+			// skip over references to sub-expressions
+			}
+				$i += $pattern[$this->LENGTH];
+
+		}
+	}
+
+	function _backReferences($match, $offset) {
+		$replacement = $this->buffer["replacement"];
+		$quote = $this->buffer["quote"];
+		$i = $this->buffer["length"];
+		while ($i) {
+			$replacement = str_replace("$".$i--, $match[$offset + $i], $replacement);
+		}
+		return $replacement;
+	}
+
+	function _replace_name($match, $offset){
+		$length = strlen($match[$offset + 2]);
+		$start = $length - max($length - strlen($match[$offset + 3]), 0);
+		return substr($match[$offset + 1], $start, $length) . $match[$offset + 4];
+	}
+
+	function _replace_encoded($match, $offset) {
+		return $this->buffer[$match[$offset]];
+	}
+
+	// php : we cannot pass additional data to preg_replace_callback,
+	// and we cannot use &$this in create_function, so let's go to lower level
+	var $buffer;
+
+	// encode escaped characters
+	function _escape($string, $escapeChar) {
+		if ($escapeChar) {
+			$this->buffer = $escapeChar;
+			return preg_replace_callback(
+				'/\\' . $escapeChar . "(.)" ."/",
+				[&$this, "_escapeBis"],
+				$string,
+			);
+
+		}
+			return $string;
+
+	}
+	function _escapeBis($match) {
+		$this->_escaped[] = $match[1];
+		return $this->buffer;
+	}
+
+	// decode escaped characters
+	function _unescape($string, $escapeChar) {
+		if ($escapeChar) {
+			$regexp = "/".'\\'.$escapeChar."/";
+			$this->buffer = ["escapeChar"=> $escapeChar, "i" => 0];
+			return preg_replace_callback
+			(
+				$regexp,
+				[&$this, "_unescapeBis"],
+				$string,
+			);
+
+		}
+			return $string;
+
+	}
+	function _unescapeBis() {
+		if (!empty($this->_escaped[$this->buffer["i"]])) {
+			 $temp = $this->_escaped[$this->buffer["i"]];
+		} else {
+			$temp = "";
+		}
+		$this->buffer["i"]++;
+		return $this->buffer["escapeChar"] . $temp;
+	}
+
+	function _internalEscape($string) {
+		return preg_replace($this->ESCAPE, "", $string);
+	}
+}
+?>
diff --git a/includes/classes/BitThemes.php b/includes/classes/BitThemes.php
index 30ec9a8..46ae193 100755
--- a/includes/classes/BitThemes.php
+++ b/includes/classes/BitThemes.php
@@ -1615,7 +1615,7 @@ class BitThemes extends BitSingleton {
 					// if the file hasn't been packed and cached yet, we do that now.
 					if( !$this->mThemeCache->isCached( $cachefile, filemtime( $pJavascriptFile ))) {
 						/* DEPRECATED in favor of better yui compressor
-						require_once( UTIL_PKG_PATH.'javascript/class.JavaScriptPacker.php' );
+						require_once( THEMES_PKG_INCLUDE_PATH.'class.JavaScriptPacker.php' );
 						$packer = new JavaScriptPacker( file_get_contents( $pJavascriptFile ) );
 						$this->mThemeCache->writeCacheFile( $cachefile, $packer->pack() );
 						*/