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Diffstat (limited to 'release/build/js/pack.js')
| -rw-r--r-- | release/build/js/pack.js | 316 |
1 files changed, 0 insertions, 316 deletions
diff --git a/release/build/js/pack.js b/release/build/js/pack.js deleted file mode 100644 index 56bfdd1a2..000000000 --- a/release/build/js/pack.js +++ /dev/null @@ -1,316 +0,0 @@ -/* - packer, version 2.0.2 (2005-08-19) - Copyright 2004-2005, Dean Edwards - License: http://creativecommons.org/licenses/LGPL/2.1/ -*/ - -function pack(_script, _encoding, _fastDecode, _specialChars) { - // constants - var $IGNORE = "$1"; - - // validate parameters - _script += "\n"; - _encoding = Math.min(parseInt(_encoding), 95); - - // apply all parsing routines - function _pack($script) { - var i, $parse; - for (i = 0; ($parse = _parsers[i]); i++) { - $script = $parse($script); - } - return $script; - }; - - // unpacking function - this is the boot strap function - // data extracted from this packing routine is passed to - // this function when decoded in the target - var _unpack = function($packed, $ascii, $count, $keywords, $encode, $decode) { - while ($count--) - if ($keywords[$count]) - $packed = $packed.replace(new RegExp('\\b' + $encode($count) + '\\b', 'g'), $keywords[$count]); - return $packed; - }; - - // code-snippet inserted into the unpacker to speed up decoding - var _decode = function() { - // does the browser support String.replace where the - // replacement value is a function? - if (!''.replace(/^/, String)) { - // decode all the values we need - while ($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 - $count = 1; - } - }; - - // keep a list of parsing functions, they'll be executed all at once - var _parsers = []; - function _addParser($parser) { - _parsers[_parsers.length] = $parser; - }; - - // zero encoding - just removal of white space and comments - function _basicCompression($script) { - var $parser = new ParseMaster; - // make safe - $parser.escapeChar = "\\"; - // protect strings - $parser.add(/'[^'\n\r]*'/, $IGNORE); - $parser.add(/"[^"\n\r]*"/, $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?/, $IGNORE); - // remove: ;;; doSomething(); - if (_specialChars) $parser.add(/;;;[^\n\r]+[\n\r]/); - // remove redundant semi-colons - $parser.add(/\(;;\)/, $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) { - var $parser = new ParseMaster; - // replace: $name -> n, $$name -> na - $parser.add(/((\x24+)([a-zA-Z$_]+))(\d*)/, function($match, $offset) { - var $length = $match[$offset + 2].length; - var $start = $length - Math.max($length - $match[$offset + 3].length, 0); - return $match[$offset + 1].substr($start, $length) + $match[$offset + 4]; - }); - // replace: _name -> _0, double-underscore (__name) is ignored - var $regexp = /\b_[A-Za-z\d]\w*/; - // build the word list - var $keywords = _analyze($script, _globalize($regexp), _encodePrivate); - // quick ref - var $encoded = $keywords.$encoded; - $parser.add($regexp, function($match, $offset) { - return $encoded[$match[$offset]]; - }); - return $parser.exec($script); - }; - - function _encodeKeywords($script) { - // escape high-ascii values already in the script (i.e. in strings) - if (_encoding > 62) $script = _escape95($script); - // create the parser - var $parser = new ParseMaster; - var $encode = _getEncoder(_encoding); - // for high-ascii, don't encode single character low-ascii - var $regexp = (_encoding > 62) ? /\w\w+/ : /\w+/; - // build the word list - $keywords = _analyze($script, _globalize($regexp), $encode); - var $encoded = $keywords.$encoded; - // encode - $parser.add($regexp, function($match, $offset) { - return $encoded[$match[$offset]]; - }); - // if encoded, wrap the script in a decoding function - return $script && _bootStrap($parser.exec($script), $keywords); - }; - - function _analyze($script, $regexp, $encode) { - // analyse - // retreive all words in the script - var $all = $script.match($regexp); - var $$sorted = []; // list of words sorted by frequency - var $$encoded = {}; // dictionary of word->encoding - var $$protected = {}; // instances of "protected" words - if ($all) { - var $unsorted = []; // same list, not sorted - var $protected = {}; // "protected" words (dictionary of word->"word") - var $values = {}; // dictionary of charCode->encoding (eg. 256->ff) - var $count = {}; // word->count - var i = $all.length, j = 0, $word; - // count the occurrences - used for sorting later - do { - $word = "$" + $all[--i]; - if (!$count[$word]) { - $count[$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 - $protected["$" + ($values[j] = $encode(j))] = j++; - } - // increment the word counter - $count[$word]++; - } while (i); - // 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 = $unsorted.length; - do { - $word = $unsorted[--i]; - if ($protected[$word] != null) { - $$sorted[$protected[$word]] = $word.slice(1); - $$protected[$protected[$word]] = true; - $count[$word] = 0; - } - } while (i); - // sort the words by frequency - $unsorted.sort(function($match1, $match2) { - return $count[$match2] - $count[$match1]; - }); - j = 0; - // because there are "protected" words in the list - // we must add the sorted words around them - do { - if ($$sorted[i] == null) $$sorted[i] = $unsorted[j++].slice(1); - $$encoded[$$sorted[i]] = $values[i]; - } while (++i < $unsorted.length); - } - return {$sorted: $$sorted, $encoded: $$encoded, $protected: $$protected}; - }; - - // build the boot function used for loading and decoding - function _bootStrap($packed, $keywords) { - var $ENCODE = _safeRegExp("$encode\\($count\\)", "g"); - - // $packed: the packed script - $packed = "'" + _escape($packed) + "'"; - - // $ascii: base for encoding - var $ascii = Math.min($keywords.$sorted.length, _encoding) || 1; - - // $count: number of words contained in the script - var $count = $keywords.$sorted.length; - - // $keywords: list of words contained in the script - for (var i in $keywords.$protected) $keywords.$sorted[i] = ""; - // convert from a string to an array - $keywords = "'" + $keywords.$sorted.join("|") + "'.split('|')"; - - // $encode: encoding function (used for decoding the script) - var $encode = _encoding > 62 ? _encode95 : _getEncoder($ascii); - $encode = String($encode).replace(/_encoding/g, "$ascii").replace(/arguments\.callee/g, "$encode"); - var $inline = "$count" + ($ascii > 10 ? ".toString($ascii)" : ""); - - // $decode: code snippet to speed up decoding - if (_fastDecode) { - // create the decoder - var $decode = _getFunctionBody(_decode); - if (_encoding > 62) $decode = $decode.replace(/\\\\w/g, "[\\xa1-\\xff]"); - // perform the encoding inline for lower ascii values - else if ($ascii < 36) $decode = $decode.replace($ENCODE, $inline); - // 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) $decode = $decode.replace(_safeRegExp("($count)\\s*=\\s*1"), "$1=0"); - } - - // boot function - var $unpack = String(_unpack); - if (_fastDecode) { - // insert the decoder - $unpack = $unpack.replace(/\{/, "{" + $decode + ";"); - } - $unpack = $unpack.replace(/"/g, "'"); - if (_encoding > 62) { // high-ascii - // get rid of the word-boundaries for regexp matches - $unpack = $unpack.replace(/'\\\\b'\s*\+|\+\s*'\\\\b'/g, ""); - } - if ($ascii > 36 || _encoding > 62 || _fastDecode) { - // insert the encode function - $unpack = $unpack.replace(/\{/, "{$encode=" + $encode + ";"); - } else { - // perform the encoding inline - $unpack = $unpack.replace($ENCODE, $inline); - } - // pack the boot function too - $unpack = pack($unpack, 0, false, true); - - // arguments - var $params = [$packed, $ascii, $count, $keywords]; - if (_fastDecode) { - // insert placeholders for the decoder - $params = $params.concat(0, "{}"); - } - - // the whole thing - return "eval(" + $unpack + "(" + $params + "))\n"; - }; - - // mmm.. ..which one do i need ?? - function _getEncoder($ascii) { - return $ascii > 10 ? $ascii > 36 ? $ascii > 62 ? _encode95 : _encode62 : _encode36 : _encode10; - }; - - // zero encoding - // characters: 0123456789 - var _encode10 = function($charCode) { - return $charCode; - }; - - // inherent base36 support - // characters: 0123456789abcdefghijklmnopqrstuvwxyz - var _encode36 = function($charCode) { - return $charCode.toString(36); - }; - - // hitch a ride on base36 and add the upper case alpha characters - // characters: 0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ - var _encode62 = function($charCode) { - return ($charCode < _encoding ? '' : arguments.callee(parseInt($charCode / _encoding))) + - (($charCode = $charCode % _encoding) > 35 ? String.fromCharCode($charCode + 29) : $charCode.toString(36)); - }; - - // use high-ascii values - var _encode95 = function($charCode) { - return ($charCode < _encoding ? '' : arguments.callee($charCode / _encoding)) + - String.fromCharCode($charCode % _encoding + 161); - }; - - // special _chars - var _encodePrivate = function($charCode) { - return "_" + $charCode; - }; - - // protect characters used by the parser - function _escape($script) { - return $script.replace(/([\\'])/g, "\\$1"); - }; - - // protect high-ascii characters already in the script - function _escape95($script) { - return $script.replace(/[\xa1-\xff]/g, function($match) { - return "\\x" + $match.charCodeAt(0).toString(16); - }); - }; - - function _safeRegExp($string, $flags) { - return new RegExp($string.replace(/\$/g, "\\$"), $flags); - }; - - // extract the body of a function - function _getFunctionBody($function) { - with (String($function)) return slice(indexOf("{") + 1, lastIndexOf("}")); - }; - - // set the global flag on a RegExp (you have to create a new one) - function _globalize($regexp) { - return new RegExp(String($regexp).slice(1, -1), "g"); - }; - - // build the parsing routine - _addParser(_basicCompression); - if (_specialChars) _addParser(_encodeSpecialChars); - if (_encoding) _addParser(_encodeKeywords); - - // go! - return _pack(_script); -}; |