diff options
Diffstat (limited to 'javascript/class.JavaScriptPacker.php')
| -rwxr-xr-x[-rw-r--r--] | javascript/class.JavaScriptPacker.php | 452 |
1 files changed, 224 insertions, 228 deletions
diff --git a/javascript/class.JavaScriptPacker.php b/javascript/class.JavaScriptPacker.php index 959b817..635d1f5 100644..100755 --- a/javascript/class.JavaScriptPacker.php +++ b/javascript/class.JavaScriptPacker.php @@ -63,63 +63,62 @@ * # 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'; + var $IGNORE = "$1"; // validate parameters - var $_script = ''; + var $_script = ""; var $_encoding = 62; var $_fastDecode = true; var $_specialChars = false; - - var $LITERAL_ENCODING = array( - 'None' => 0, - 'Numeric' => 10, - 'Normal' => 62, - 'High ASCII' => 95 - ); - + + 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->_fastDecode = $_fastDecode; $this->_specialChars = $_specialChars; } - + function pack() { - $this->_addParser('_basicCompression'); + $this->_addParser("_basicCompression"); if ($this->_specialChars) - $this->_addParser('_encodeSpecialChars'); + $this->_addParser("_encodeSpecialChars"); if ($this->_encoding) - $this->_addParser('_encodeKeywords'); - + $this->_addParser("_encodeKeywords"); + // go! return $this->_pack($this->_script); } - + // apply all parsing routines function _pack($script) { for ($i = 0; isset($this->_parsers[$i]); $i++) { - $script = call_user_func(array(&$this,$this->_parsers[$i]), $script); + $script = call_user_func([&$this,$this->_parsers[$i]], $script); } return $script; } - + // keep a list of parsing functions, they'll be executed all at once - var $_parsers = array(); + var $_parsers = []; function _addParser($parser) { $this->_parsers[] = $parser; } - + // zero encoding - just removal of white space and comments function _basicCompression($script) { $parser = new ParseMaster(); @@ -129,49 +128,49 @@ class JavaScriptPacker { $parser->add('/\'[^\'\\n\\r]*\'/',$this->IGNORE); $parser->add('/"[^"\\n\\r]*"/', $this->IGNORE); // remove comments - $parser->add('/\\/\\/[^\\n\\r]*[\\n\\r]/', ' '); - $parser->add('/\\/\\*[^*]*\\*+([^\\/][^*]*\\*+)*\\//', ' '); + $parser->add('/\\/\\/[^\\n\\r]*[\\n\\r]/', " "); + $parser->add('/\\/\\*[^*]*\\*+([^\\/][^*]*\\*+)*\\//', " "); // protect regular expressions - $parser->add('/\\s+(\\/[^\\/\\n\\r\\*][^\\/\\n\\r]*\\/g?i?)/', '$2'); // IGNORE + $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'); + $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+/', ''); + $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*)/', - array('fn' => '_replace_name') + ["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'); + $keywords = $this->_analyze($script, $regexp, "_encodePrivate"); // quick ref - $encoded = $keywords['encoded']; - + $encoded = $keywords["encoded"]; + $parser->add($regexp, - array( - 'fn' => '_replace_encoded', - 'data' => $encoded - ) + [ + "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) @@ -183,51 +182,51 @@ class JavaScriptPacker { $regexp = ($this->_encoding > 62) ? '/\\w\\w+/' : '/\\w+/'; // build the word list $keywords = $this->_analyze($script, $regexp, $encode); - $encoded = $keywords['encoded']; - + $encoded = $keywords["encoded"]; + // encode $parser->add($regexp, - array( - 'fn' => '_replace_encoded', - 'data' => $encoded - ) + [ + "fn" => "_replace_encoded", + "data" => $encoded, + ], ); if (empty($script)) return $script; - else { + //$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 = array(); + $all = []; preg_match_all($regexp, $script, $all); - $_sorted = array(); // list of words sorted by frequency - $_encoded = array(); // dictionary of word->encoding - $_protected = array(); // instances of "protected" words + $_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 = array(); // same list, not sorted - $protected = array(); // "protected" words (dictionary of word->"word") - $value = array(); // dictionary of charCode->encoding (eg. 256->ff) - $this->_count = array(); // word->count + $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]; + $word = "$" . $all[$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(array(&$this, $encode), $j); - $protected['$' . $values[$j]] = $j++; + $values[$j] = call_user_func([&$this, $encode], $j); + $protected["$" . $values[$j]] = $j++; } // increment the word counter $this->_count[$word]++; @@ -247,7 +246,7 @@ class JavaScriptPacker { $this->_count[$word] = 0; } } while ($i); - + // sort the words by frequency // Note: the javascript and php version of sort can be different : // in php manual, usort : @@ -257,8 +256,8 @@ class JavaScriptPacker { // but equivalent. // the ECMAscript standard does not guarantee this behaviour, // and thus not all browsers (e.g. Mozilla versions dating back to at - // least 2003) respect this. - usort($unsorted, array(&$this, '_sortWords')); + // least 2003) respect this. + usort($unsorted, [&$this, "_sortWords"]); $j = 0; // because there are "protected" words in the list // we must add the sorted words around them @@ -268,17 +267,17 @@ class JavaScriptPacker { $_encoded[$_sorted[$i]] = $values[$i]; } while (++$i < count($unsorted)); } - return array( - 'sorted' => $_sorted, - 'encoded' => $_encoded, - 'protected' => $_protected); + return [ + "sorted" => $_sorted, + "encoded" => $_encoded, + "protected" => $_protected, ]; } - - var $_count = array(); + + 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\\)'); @@ -287,30 +286,30 @@ class JavaScriptPacker { $packed = "'" . $this->_escape($packed) . "'"; // $ascii: base for encoding - $ascii = min(count($keywords['sorted']), $this->_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']); + $count = count($keywords["sorted"]); // $keywords: list of words contained in the script - foreach ($keywords['protected'] as $i=>$value) { - $keywords['sorted'][$i] = ''; + foreach ($keywords["protected"] as $i=>$value) { + $keywords["sorted"][$i] = ""; } // convert from a string to an array - ksort($keywords['sorted']); - $keywords = "'" . implode('|',$keywords['sorted']) . "'.split('|')"; + ksort($keywords["sorted"]); + $keywords = "'" . implode("|",$keywords["sorted"]) . "'.split('|')"; - $encode = ($this->_encoding > 62) ? '_encode95' : $this->_getEncoder($ascii); + $encode = ($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)' : ''); + $encode = preg_replace("/_encoding/","$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'); + $decode = $this->_getJSFunction("_decodeBody"); if ($this->_encoding > 62) $decode = preg_replace('/\\\\w/', '[\\xa1-\\xff]', $decode); // perform the encoding inline for lower ascii values @@ -319,25 +318,25 @@ class JavaScriptPacker { // 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); + $decode = preg_replace($this->_safeRegExp('($count)\\s*=\\s*1'), "$1=0", $decode, 1); } // boot function - $unpack = $this->_getJSFunction('_unpack'); + $unpack = $this->_getJSFunction("_unpack"); if ($this->_fastDecode) { // insert the decoder $this->buffer = $decode; - $unpack = preg_replace_callback('/\\{/', array(&$this, '_insertFastDecode'), $unpack, 1); + $unpack = preg_replace_callback('/\\{/', [&$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); + $unpack = preg_replace('/\'\\\\\\\\b\'\s*\\+|\\+\s*\'\\\\\\\\b\'/', "", $unpack); } if ($ascii > 36 || $this->_encoding > 62 || $this->_fastDecode) { // insert the encode function $this->buffer = $encode; - $unpack = preg_replace_callback('/\\{/', array(&$this, '_insertFastEncode'), $unpack, 1); + $unpack = preg_replace_callback('/\\{/', [&$this, "_insertFastEncode"], $unpack, 1); } else { // perform the encoding inline $unpack = preg_replace($ENCODE, $inline, $unpack); @@ -345,105 +344,104 @@ class JavaScriptPacker { // pack the boot function too $unpackPacker = new JavaScriptPacker($unpack, 0, false, true); $unpack = $unpackPacker->pack(); - + // arguments - $params = array($packed, $ascii, $count, $keywords); + $params = [$packed, $ascii, $count, $keywords]; if ($this->_fastDecode) { $params[] = 0; - $params[] = '{}'; + $params[] = "{}"; } - $params = implode(',', $params); - + $params = implode(",", $params); + // the whole thing - return 'eval(' . $unpack . '(' . $params . "));\n"; + return "eval(" . $unpack . "(" . $params . "));\n"; } - + var $buffer; function _insertFastDecode($match) { - return '{' . $this->buffer . ';'; + return "{" . $this->buffer . ";"; } function _insertFastEncode($match) { - return '{$encode=' . $this->buffer . ';'; + return "{$encode=" . $this->buffer . ";"; } - + // mmm.. ..which one do i need ?? function _getEncoder($ascii) { return $ascii > 10 ? $ascii > 36 ? $ascii > 62 ? - '_encode95' : '_encode62' : '_encode36' : '_encode10'; + "_encode95" : "_encode62" : "_encode36" : "_encode10"; } - + // zero encoding // characters: 0123456789 function _encode10($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 = ''; + $res = ""; if ($charCode >= $this->_encoding) { $res = $this->_encode62((int)($charCode / $this->_encoding)); } $charCode = $charCode % $this->_encoding; - + if ($charCode > 35) return $res . chr($charCode + 29); - else + return $res . base_convert($charCode, 10, 36); } - + // use high-ascii values // characters: ¡¢£¤¥¦§¨©ª«¬Â®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÃ?ÂÃÄÅÆÇÈÉÊËÌÃ?ÃŽÃ?Ã?ÑÒÓÔÕÖ×ØÙÚÛÜÃ?Þßà áâãäåæçèéêëìÃîïðñòóôõö÷øùúûüýþ function _encode95($charCode) { - $res = ''; + $res = ""; if ($charCode >= $this->_encoding) $res = $this->_encode95($charCode / $this->_encoding); - + return $res . chr(($charCode % $this->_encoding) + 161); } - + function _safeRegExp($string) { - return '/'.preg_replace('/\$/', '\\\$', $string).'/'; + 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]/', - array(&$this, '_escape95Bis'), - $script + [&$this, "_escape95Bis"], + $script, ); } function _escape95Bis($match) { return '\x'.((string)dechex(ord($match))); } - - + function _getJSFunction($aName) { - $func = 'JSFUNCTION'.$aName; + $func = "JSFUNCTION".$aName; if (isset($this->$func)){ return $this->$func; } - else - return ''; + + return ""; } - + // JavaScript Functions used. // Note : In Dean's version, these functions are converted // with 'String(aFunctionName);'. @@ -451,7 +449,7 @@ class JavaScriptPacker { // '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 @@ -466,13 +464,13 @@ class JavaScriptPacker { }'; /* '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 $packed; + while ($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 $JSFUNCTION_decodeBody = ' if (!\'\'.replace(/^/, String)) { // decode all the values we need @@ -490,55 +488,54 @@ class JavaScriptPacker { //}; /* ' if (!\'\'.replace(/^/, String)) { - // decode all the values we need - while ($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 - $count = 1; - }'; + // decode all the values we need + while ($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) { + var $JSFUNCTION_encode10 = "function($charCode) { return $charCode; -}';//;'; - +}";//;'; + // inherent base36 support // characters: 0123456789abcdefghijklmnopqrstuvwxyz - var $JSFUNCTION_encode36 = 'function($charCode) { + 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«¬Â®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÃ?ÂÃÄÅÆÇÈÉÊËÌÃ?ÃŽÃ?Ã?ÑÒÓÔÕÖ×ØÙÚÛÜÃ?Þßà áâãäåæçèéêëìÃîïðñòóôõö÷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 = ''; - + var $escapeChar = ""; + // constants var $EXPRESSION = 0; var $REPLACEMENT = 1; var $LENGTH = 2; - + // used to determine nesting levels var $GROUPS = '/\\(/';//g var $SUB_REPLACE = '/\\$\\d/'; @@ -547,12 +544,12 @@ class ParseMaster { var $ESCAPE = '/\\\./';//g var $QUOTE = '/\'/'; var $DELETED = '/\\x01[^\\x01]*\\x01/';//g - - function add($expression, $replacement = '') { + + function add($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? @@ -564,169 +561,168 @@ class ParseMaster { } 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 = array( - 'fn' => '_backReferences', - 'data' => array( - 'replacement' => $replacement, - 'length' => $length, - 'quote' => $quote - ) - ); + ? '"' : "'"; + $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); + else $this->_add("/^$/", $replacement, $length); } - + function exec($string) { // execute the global replacement - $this->_escaped = array(); - + $this->_escaped = []; + // simulate the _patterns.toSTring of Dean - $regexp = '/'; + $regexp = "/"; foreach ($this->_patterns as $reg) { - $regexp .= '(' . substr($reg[$this->EXPRESSION], 1, -1) . ')|'; + $regexp .= "(" . substr($reg[$this->EXPRESSION], 1, -1) . ")|"; } - $regexp = substr($regexp, 0, -1) . '/'; - $regexp .= ($this->ignoreCase) ? 'i' : ''; - + $regexp = substr($regexp, 0, -1) . "/"; + $regexp .= ($this->ignoreCase) ? "i" : ""; + $string = $this->_escape($string, $this->escapeChar); $string = preg_replace_callback( $regexp, - array( + [ &$this, - '_replacement' - ), - $string + "_replacement", + ], + $string, ); $string = $this->_unescape($string, $this->escapeChar); - - return preg_replace($this->DELETED, '', $string); + + return preg_replace($this->DELETED, "", $string); } - + function reset() { // clear the patterns collection so that this object may be re-used - $this->_patterns = array(); + $this->_patterns = []; } // private - var $_escaped = array(); // escaped characters - var $_patterns = array(); // patterns stored by index - + 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($arguments)) return ''; - + if (empty($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] != '')) { + if (isset($arguments[$i]) && ($arguments[$i] != "")) { $replacement = $pattern[$this->REPLACEMENT]; - - if (is_array($replacement) && isset($replacement['fn'])) { - - if (isset($replacement['data'])) $this->buffer = $replacement['data']; - return call_user_func(array(&$this, $replacement['fn']), $arguments, $i); - + + if (is_array($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"; + $delete = ($this->escapeChar == "" || + strpos($arguments[$i], $this->escapeChar) === false) + ? "" : "\x01" . $arguments[$i] . "\x01"; return $delete . $replacement; - + // skip over references to sub-expressions - } else { - $i += $pattern[$this->LENGTH]; } + $i += $pattern[$this->LENGTH]; + } } - + function _backReferences($match, $offset) { - $replacement = $this->buffer['replacement']; - $quote = $this->buffer['quote']; - $i = $this->buffer['length']; + $replacement = $this->buffer["replacement"]; + $quote = $this->buffer["quote"]; + $i = $this->buffer["length"]; while ($i) { - $replacement = str_replace('$'.$i--, $match[$offset + $i], $replacement); + $replacement = str_replace("$".$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( - '/\\' . $escapeChar . '(.)' .'/', - array(&$this, '_escapeBis'), - $string + '/\\' . $escapeChar . "(.)" ."/", + [&$this, "_escapeBis"], + $string, ); - - } else { - return $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 = array('escapeChar'=> $escapeChar, 'i' => 0); + $regexp = "/".'\\'.$escapeChar."/"; + $this->buffer = ["escapeChar"=> $escapeChar, "i" => 0]; return preg_replace_callback ( $regexp, - array(&$this, '_unescapeBis'), - $string + [&$this, "_unescapeBis"], + $string, ); - - } else { - return $string; + } + return $string; + } function _unescapeBis() { - if (!empty($this->_escaped[$this->buffer['i']])) { - $temp = $this->_escaped[$this->buffer['i']]; + if (!empty($this->_escaped[$this->buffer["i"]])) { + $temp = $this->_escaped[$this->buffer["i"]]; } else { - $temp = ''; + $temp = ""; } - $this->buffer['i']++; - return $this->buffer['escapeChar'] . $temp; + $this->buffer["i"]++; + return $this->buffer["escapeChar"] . $temp; } - + function _internalEscape($string) { - return preg_replace($this->ESCAPE, '', $string); + return preg_replace($this->ESCAPE, "", $string); } } ?> |