lib_packscrips.inc

<?php
/* 9 April 2008. version 1.1
 *
 * 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.
 *
 * ----------------------------------------------------------------------
 * changelog:
 * 1.1 : correct a bug, '\0' packed then unpacked becomes '\'.
 * ----------------------------------------------------------------------
 *
 * 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 :
 * # need PHP 5 . Tested with PHP 5.1.2, 5.1.3, 5.1.4, 5.2.3
 *
 * # 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...
 */

class JavaScriptPacker {
    // constants
    const IGNORE = '$1';

    // validate parameters
    private $_script = '';
    private $_encoding = 62;
    private $_fastDecode = true;
    private $_specialChars = false;

    private $LITERAL_ENCODING = array(
        'None' => 0,
        'Numeric' => 10,
        'Normal' => 62,
        'High ASCII' => 95
    );

    public function __construct($_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;
    }

    public 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
    private function _pack($script) {
        for ($i = 0; isset($this->_parsers[$i]); $i++) {
            $script = call_user_func(array(&$this,$this->_parsers[$i]), $script);
        }
        return $script;
    }

    // keep a list of parsing functions, they'll be executed all at once
    private $_parsers = array();
    private function _addParser($parser) {
        $this->_parsers[] = $parser;
    }

    // zero encoding - just removal of white space and comments
    private function _basicCompression($script) {
        $parser = new ParseMaster();
        // make safe
        $parser->escapeChar = '\\';
        // protect strings
        $parser->add('/\'[^\'\\n\\r]*\'/', self::IGNORE);
        $parser->add('/"[^"\\n\\r]*"/', self::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
        $parser->add('/[^\\w\\x24\\/\'"*)\\?:]\\/[^\\/\\n\\r\\*][^\\/\\n\\r]*\\/g?i?/', self::IGNORE);
        // remove: ;;; doSomething();
        if ($this->_specialChars) $parser->add('/;;;[^\\n\\r]+[\\n\\r]/');
        // remove redundant semi-colons
        $parser->add('/\\(;;\\)/', self::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);
    }

    private function _encodeSpecialChars($script) {
        $parser = new ParseMaster();
        // replace: $name -> n, $$name -> na
        $parser->add('/((\\x24+)([a-zA-Z$_]+))(\\d*)/',
                     array('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,
            array(
                'fn' => '_replace_encoded',
                'data' => $encoded
            )
        );
        return $parser->exec($script);
    }

    private 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,
            array(
                '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);
        }
    }

    private function _analyze($script, $regexp, $encode) {
        // analyse
        // retreive all words in the script
        $all = array();
        preg_match_all($regexp, $script, $all);
        $_sorted = array(); // list of words sorted by frequency
        $_encoded = array(); // dictionary of word->encoding
        $_protected = array(); // instances of "protected" words
        $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
            $i = count($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(array(&$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($unsorted, array(&$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 array(
            'sorted'    => $_sorted,
            'encoded' => $_encoded,
            'protected' => $_protected);
    }

    private $_count = array();
    private function _sortWords($match1, $match2) {
        return $this->_count[$match2] - $this->_count[$match1];
    }

    // build the boot function used for loading and decoding
    private 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;
            $unpack = preg_replace_callback('/\\{/', array(&$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;
            $unpack = preg_replace_callback('/\\{/', array(&$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
        $params = array($packed, $ascii, $count, $keywords);
        if ($this->_fastDecode) {
            $params[] = 0;
            $params[] = '{}';
        }
        $params = implode(',', $params);

        // the whole thing
        return 'eval(' . $unpack . '(' . $params . "))\n";
    }

    private $buffer;
    private function _insertFastDecode($match) {
        return '{' . $this->buffer . ';';
    }
    private function _insertFastEncode($match) {
        return '{$encode=' . $this->buffer . ';';
    }

    // mmm.. ..which one do i need ??
    private function _getEncoder($ascii) {
        return $ascii > 10 ? $ascii > 36 ? $ascii > 62 ?
                 '_encode95' : '_encode62' : '_encode36' : '_encode10';
    }

    // zero encoding
    // characters: 0123456789
    private function _encode10($charCode) {
        return $charCode;
    }

    // inherent base36 support
    // characters: 0123456789abcdefghijklmnopqrstuvwxyz
    private function _encode36($charCode) {
        return base_convert($charCode, 10, 36);
    }

    // hitch a ride on base36 and add the upper case alpha characters
    // characters: 0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
    private 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);
        else
            return $res . base_convert($charCode, 10, 36);
    }

    // use high-ascii values
    // characters: ¡¢£¤¥¦§¨©ª«¬­®¯°±²³´µ¶·¸¹º»¼½¾¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþ
    private function _encode95($charCode) {
        $res = '';
        if ($charCode >= $this->_encoding)
            $res = $this->_encode95($charCode / $this->_encoding);

        return $res . chr(($charCode % $this->_encoding) + 161);
    }

    private function _safeRegExp($string) {
        return '/'.preg_replace('/\$/', '\\\$', $string).'/';
    }

    private function _encodePrivate($charCode) {
        return "_" . $charCode;
    }

    // protect characters used by the parser
    private function _escape($script) {
        return preg_replace('/([\\\\\'])/', '\\\$1', $script);
    }

    // protect high-ascii characters already in the script
    private function _escape95($script) {
        return preg_replace_callback(
            '/[\\xa1-\\xff]/',
            array(&$this, '_escape95Bis'),
            $script
        );
    }
    private function _escape95Bis($match) {
        return '\x'.((string)dechex(ord($match)));
    }


    private function _getJSFunction($aName) {
        if (defined('self::JSFUNCTION'.$aName))
            return constant('self::JSFUNCTION'.$aName);
        else
            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.
    const 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
    const JSFUNCTION_decodeBody =
//_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
        $count = 1;
    }
';
//};
/*
'   if (!\'\'.replace(/^/, String)) {
        // decode all the values we need
        while ($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
     const JSFUNCTION_encode10 =
'function($charCode) {
    return $charCode;
}';//;';

     // inherent base36 support
     // characters: 0123456789abcdefghijklmnopqrstuvwxyz
     const JSFUNCTION_encode36 =
'function($charCode) {
    return $charCode.toString(36);
}';//;';

    // hitch a ride on base36 and add the upper case alpha characters
    // characters: 0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ
    const 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¿ÀÁÂÃÄÅÆÇÈÉÊËÌÍÎÏÐÑÒÓÔÕÖ×ØÙÚÛÜÝÞßàáâãäåæçèéêëìíîïðñòóôõö÷øùúûüýþ
    const JSFUNCTION_encode95 =
'function($charCode) {
    return ($charCode < _encoding ? \'\' : arguments.callee($charCode / _encoding)) +
        String.fromCharCode($charCode % _encoding + 161);
}';

}

class ParseMaster {
    public $ignoreCase = false;
    public $escapeChar = '';

    // constants
    const EXPRESSION = 0;
    const REPLACEMENT = 1;
    const LENGTH = 2;

    // used to determine nesting levels
    private $GROUPS = '/\\(/';//g
    private $SUB_REPLACE = '/\\$\\d/';
    private $INDEXED = '/^\\$\\d+$/';
    private $TRIM = '/([\'"])\\1\\.(.*)\\.\\1\\1$/';
    private $ESCAPE = '/\\\./';//g
    private $QUOTE = '/\'/';
    private $DELETED = '/\\x01[^\\x01]*\\x01/';//g

    public 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 = array(
                        'fn' => '_backReferences',
                        'data' => array(
                            'replacement' => $replacement,
                            'length' => $length,
                            'quote' => $quote
                        )
                    );
                }
            }
        }
        // pass the modified arguments
        if (!empty($expression)) $this->_add($expression, $replacement, $length);
        else $this->_add('/^$/', $replacement, $length);
    }

    public function exec($string) {
        // execute the global replacement
        $this->_escaped = array();

        // simulate the _patterns.toSTring of Dean
        $regexp = '/';
        foreach ($this->_patterns as $reg) {
            $regexp .= '(' . substr($reg[self::EXPRESSION], 1, -1) . ')|';
        }
        $regexp = substr($regexp, 0, -1) . '/';
        $regexp .= ($this->ignoreCase) ? 'i' : '';

        $string = $this->_escape($string, $this->escapeChar);
        $string = preg_replace_callback(
            $regexp,
            array(
                &$this,
                '_replacement'
            ),
            $string
        );
        $string = $this->_unescape($string, $this->escapeChar);

        return preg_replace($this->DELETED, '', $string);
    }

    public function reset() {
        // clear the patterns collection so that this object may be re-used
        $this->_patterns = array();
    }

    // private
    private $_escaped = array();    // escaped characters
    private $_patterns = array(); // patterns stored by index

    // create and add a new pattern to the patterns collection
    private function _add() {
        $arguments = func_get_args();
        $this->_patterns[] = $arguments;
    }

    // this is the global replace function (it's quite complicated)
    private 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[self::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);

                } 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
            } else {
                $i += $pattern[self::LENGTH];
            }
        }
    }

    private 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;
    }

    private 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];
    }

    private 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
    private $buffer;

    // encode escaped characters
    private function _escape($string, $escapeChar) {
        if ($escapeChar) {
            $this->buffer = $escapeChar;
            return preg_replace_callback(
                '/\\' . $escapeChar . '(.)' .'/',
                array(&$this, '_escapeBis'),
                $string
            );

        } else {
            return $string;
        }
    }
    private function _escapeBis($match) {
        $this->_escaped[] = $match[1];
        return $this->buffer;
    }

    // decode escaped characters
    private function _unescape($string, $escapeChar) {
        if ($escapeChar) {
            $regexp = '/'.'\\'.$escapeChar.'/';
            $this->buffer = array('escapeChar'=> $escapeChar, 'i' => 0);
            return preg_replace_callback
            (
                $regexp,
                array(&$this, '_unescapeBis'),
                $string
            );

        } else {
            return $string;
        }
    }
    private function _unescapeBis() {
        if (isset($this->_escaped[$this->buffer['i']])
            && $this->_escaped[$this->buffer['i']] != '')
        {
             $temp = $this->_escaped[$this->buffer['i']];
        } else {
            $temp = '';
        }
        $this->buffer['i']++;
        return $this->buffer['escapeChar'] . $temp;
    }

    private function _internalEscape($string) {
        return preg_replace($this->ESCAPE, '', $string);
    }
}

/**
 * jsmin.php - PHP implementation of Douglas Crockford's JSMin.
 *
 * This is pretty much a direct port of jsmin.c to PHP with just a few
 * PHP-specific performance tweaks. Also, whereas jsmin.c reads from stdin and
 * outputs to stdout, this library accepts a string as input and returns another
 * string as output.
 *
 * PHP 5 or higher is required.
 *
 * Permission is hereby granted to use this version of the library under the
 * same terms as jsmin.c, which has the following license:
 *
 * --
 * Copyright (c) 2002 Douglas Crockford (www.crockford.com)
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
 * of the Software, and to permit persons to whom the Software is furnished to do
 * so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * The Software shall be used for Good, not Evil.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 * --
 *
 * @package JSMin
 * @author Ryan Grove <ryan@wonko.com>
 * @copyright 2002 Douglas Crockford <douglas@crockford.com> (jsmin.c)
 * @copyright 2008 Ryan Grove <ryan@wonko.com> (PHP port)
 * @license http://opensource.org/licenses/mit-license.php MIT License
 * @version 1.1.1 (2008-03-02)
 * @link https://github.com/rgrove/jsmin-php/
 */

class JSMin {
    const ORD_LF            = 10;
    const ORD_SPACE      = 32;
    const ACTION_KEEP_A  = 1;
    const ACTION_DELETE_A    = 2;
    const ACTION_DELETE_A_B = 3;

    protected $a             = '';
    protected $b             = '';
    protected $input         = '';
    protected $inputIndex   = 0;
    protected $inputLength = 0;
    protected $lookAhead     = null;
    protected $output       = '';

    // -- Public Static Methods --------------------------------------------------

    /**
     * Minify Javascript
     *
     * @uses __construct()
     * @uses min()
     * @param string $js Javascript to be minified
     * @return string
     */
    public static function minify($js) {
    $jsmin = new JSMin($js);
    return $jsmin->min();
    }

    // -- Public Instance Methods ------------------------------------------------

    /**
     * Constructor
     *
     * @param string $input Javascript to be minified
     */
    public function __construct($input) {
    $this->input         = str_replace("\r\n", "\n", $input);
    $this->inputLength = strlen($this->input);
    }

    // -- Protected Instance Methods ---------------------------------------------

    /**
     * Action -- do something! What to do is determined by the $command argument.
     *
     * action treats a string as a single character. Wow!
     * action recognizes a regular expression if it is preceded by ( or , or =.
     *
     * @uses next()
     * @uses get()
     * @throws JSMinException If parser errors are found:
     *       - Unterminated string literal
     *       - Unterminated regular expression set in regex literal
     *       - Unterminated regular expression literal
     * @param int $command One of class constants:
     *      ACTION_KEEP_A       Output A. Copy B to A. Get the next B.
     *      ACTION_DELETE_A Copy B to A. Get the next B. (Delete A).
     *      ACTION_DELETE_A_B   Get the next B. (Delete B).
    */
    protected function action($command) {
    switch($command) {
        case self::ACTION_KEEP_A:
        $this->output .= $this->a;

        case self::ACTION_DELETE_A:
        $this->a = $this->b;

        if ($this->a === "'" || $this->a === '"') {
            for (;;) {
            $this->output .= $this->a;
            $this->a         = $this->get();

            if ($this->a === $this->b) {
                break;
            }

            if (ord($this->a) <= self::ORD_LF) {
                throw new JSMinException('Unterminated string literal.');
            }

            if ($this->a === '\\') {
                $this->output .= $this->a;
                $this->a         = $this->get();
            }
            }
        }

        case self::ACTION_DELETE_A_B:
        $this->b = $this->next();

        if ($this->b === '/' && (
            $this->a === '(' || $this->a === ',' || $this->a === '=' ||
            $this->a === ':' || $this->a === '[' || $this->a === '!' ||
            $this->a === '&' || $this->a === '|' || $this->a === '?' ||
            $this->a === '{' || $this->a === '}' || $this->a === ';' ||
            $this->a === "\n" )) {

            $this->output .= $this->a . $this->b;

            for (;;) {
            $this->a = $this->get();

            if ($this->a === '[') {
                /*
                inside a regex [...] set, which MAY contain a '/' itself. Example: mootools Form.Validator near line 460:
                    return Form.Validator.getValidator('IsEmpty').test(element) || (/^(?:[a-z0-9!#$%&'*+/=?^_`{|}~-]\.?){0,63}[a-z0-9!#$%&'*+/=?^_`{|}~-]@(?:(?:[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?\.)*[a-z0-9](?:[a-z0-9-]{0,61}[a-z0-9])?|\[(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\])$/i).test(element.get('value'));
                */
                for (;;) {
                $this->output .= $this->a;
                $this->a = $this->get();

                if ($this->a === ']') {
                    break;
                } elseif ($this->a === '\\') {
                    $this->output .= $this->a;
                    $this->a         = $this->get();
                } elseif (ord($this->a) <= self::ORD_LF) {
                    throw new JSMinException('Unterminated regular expression set in regex literal.');
                }
                }
            } elseif ($this->a === '/') {
                break;
            } elseif ($this->a === '\\') {
                $this->output .= $this->a;
                $this->a         = $this->get();
            } elseif (ord($this->a) <= self::ORD_LF) {
                throw new JSMinException('Unterminated regular expression literal.');
            }

            $this->output .= $this->a;
            }

            $this->b = $this->next();
        }
    }
    }

    /**
     * Get next char. Convert ctrl char to space.
     *
     * @return string|null
     */
    protected function get() {
    $c = $this->lookAhead;
    $this->lookAhead = null;

    if ($c === null) {
        if ($this->inputIndex < $this->inputLength) {
        $c = substr($this->input, $this->inputIndex, 1);
        $this->inputIndex += 1;
        } else {
        $c = null;
        }
    }

    if ($c === "\r") {
        return "\n";
    }

    if ($c === null || $c === "\n" || ord($c) >= self::ORD_SPACE) {
        return $c;
    }

    return ' ';
    }

    /**
     * Is $c a letter, digit, underscore, dollar sign, or non-ASCII character.
     *
     * @return bool
     */
    protected function isAlphaNum($c) {
    return ord($c) > 126 || $c === '\\' || preg_match('/^[\w\$]$/', $c) === 1;
    }

    /**
     * Perform minification, return result
     *
     * @uses action()
     * @uses isAlphaNum()
     * @return string
     */
    protected function min() {
    $this->a = "\n";
    $this->action(self::ACTION_DELETE_A_B);

    while ($this->a !== null) {
        switch ($this->a) {
        case ' ':
            if ($this->isAlphaNum($this->b)) {
            $this->action(self::ACTION_KEEP_A);
            } else {
            $this->action(self::ACTION_DELETE_A);
            }
            break;

        case "\n":
            switch ($this->b) {
            case '{':
            case '[':
            case '(':
            case '+':
            case '-':
                $this->action(self::ACTION_KEEP_A);
                break;

            case ' ':
                $this->action(self::ACTION_DELETE_A_B);
                break;

            default:
                if ($this->isAlphaNum($this->b)) {
                $this->action(self::ACTION_KEEP_A);
                }
                else {
                $this->action(self::ACTION_DELETE_A);
                }
            }
            break;

        default:
            switch ($this->b) {
            case ' ':
                if ($this->isAlphaNum($this->a)) {
                $this->action(self::ACTION_KEEP_A);
                break;
                }

                $this->action(self::ACTION_DELETE_A_B);
                break;

            case "\n":
                switch ($this->a) {
                case '}':
                case ']':
                case ')':
                case '+':
                case '-':
                case '"':
                case "'":
                    $this->action(self::ACTION_KEEP_A);
                    break;

                default:
                    if ($this->isAlphaNum($this->a)) {
                    $this->action(self::ACTION_KEEP_A);
                    }
                    else {
                    $this->action(self::ACTION_DELETE_A_B);
                    }
                }
                break;

            default:
                $this->action(self::ACTION_KEEP_A);
                break;
            }
        }
    }

    return $this->output;
    }

    /**
     * Get the next character, skipping over comments. peek() is used to see
     *  if a '/' is followed by a '/' or '*'.
     *
     * @uses get()
     * @uses peek()
     * @throws JSMinException On unterminated comment.
     * @return string
     */
    protected function next() {
    $c = $this->get();

    if ($c === '/') {
        switch($this->peek()) {
        case '/':
            for (;;) {
            $c = $this->get();

            if (ord($c) <= self::ORD_LF) {
                return $c;
            }
            }

        case '*':
            $this->get();

            for (;;) {
            switch($this->get()) {
                case '*':
                if ($this->peek() === '/') {
                    $this->get();
                    return ' ';
                }
                break;

                case null:
                throw new JSMinException('Unterminated comment.');
            }
            }

        default:
            return $c;
        }
    }

    return $c;
    }

    /**
     * Get next char. If is ctrl character, translate to a space or newline.
     *
     * @uses get()
     * @return string|null
     */
    protected function peek() {
    $this->lookAhead = $this->get();
    return $this->lookAhead;
    }
}

// -- Exceptions ---------------------------------------------------------------
class JSMinException extends Exception {}

/**
 * Compress CSS
 *
 * This is a heavy regex-based removal of whitespace, unnecessary
 * comments and tokens, and some CSS value minimization, where practical.
 * Many steps have been taken to avoid breaking comment-based hacks,
 * including the ie5/mac filter (and its inversion), but expect tricky
 * hacks involving comment tokens in 'content' value strings to break
 * minimization badly. A test suite is available.
 *
 * @package Minify
 * @author Stephen Clay <steve@mrclay.org>
 * @author http://code.google.com/u/1stvamp/ (Issue 64 patch)
 */
class Minify_CSS_Compressor {

    /**
     * Minify a CSS string
     *
     * @param string $css
     *
     * @param array $options (currently ignored)
     *
     * @return string
     */
    public static function process($css, $options = array())
    {
        $obj = new Minify_CSS_Compressor($options);
        return $obj->_process($css);
    }

    /**
     * @var array options
     */
    protected $_options = null;

    /**
     * @var bool Are we "in" a hack?
     *
     * I.e. are some browsers targetted until the next comment?
     */
    protected $_inHack = false;

    /**
     * Constructor
     *
     * @param array $options (currently ignored)
     *
     * @return null
     */
    private function __construct($options) {
        $this->_options = $options;
    }

    /**
     * Minify a CSS string
     *
     * @param string $css
     *
     * @return string
     */
    protected function _process($css)
    {
        $css = str_replace("\r\n", "\n", $css);

        // preserve empty comment after '>'
        // http://www.webdevout.net/css-hacks#in_css-selectors
        $css = preg_replace('@>/\\*\\s*\\*/@', '>/*keep*/', $css);

        // preserve empty comment between property and value
        // http://css-discuss.incutio.com/?page=BoxModelHack
        $css = preg_replace('@/\\*\\s*\\*/\\s*:@', '/*keep*/:', $css);
        $css = preg_replace('@:\\s*/\\*\\s*\\*/@', ':/*keep*/', $css);

        // apply callback to all valid comments (and strip out surrounding ws
        $css = preg_replace_callback('@\\s*/\\*([\\s\\S]*?)\\*/\\s*@'
            ,array($this, '_commentCB'), $css);

        // remove ws around { } and last semicolon in declaration block
        $css = preg_replace('/\\s*{\\s*/', '{', $css);
        $css = preg_replace('/;?\\s*}\\s*/', '}', $css);

        // remove ws surrounding semicolons
        $css = preg_replace('/\\s*;\\s*/', ';', $css);

        // remove ws around urls
        $css = preg_replace('/
                url\\(      # url(
                \\s*
                ([^\\)]+?)  # 1 = the URL (really just a bunch of non right parenthesis)
                \\s*
                \\)      # )
            /x', 'url($1)', $css);

        // remove ws between rules and colons
        $css = preg_replace('/
                \\s*
                ([{;])              # 1 = beginning of block or rule separator
                \\s*
                ([\\*_]?[\\w\\-]+)  # 2 = property (and maybe IE filter)
                \\s*
                :
                \\s*
                (\\b|[#\'"-])       # 3 = first character of a value
            /x', '$1$2:$3', $css);

        // remove ws in selectors
        $css = preg_replace_callback('/
                (?:             # non-capture
                    \\s*
                    [^~>+,\\s]+ # selector part
                    \\s*
                    [,>+~]       # combinators
                )+
                \\s*
                [^~>+,\\s]+     # selector part
                {               # open declaration block
            /x'
            ,array($this, '_selectorsCB'), $css);

        // minimize hex colors
        $css = preg_replace('/([^=])#([a-f\\d])\\2([a-f\\d])\\3([a-f\\d])\\4([\\s;\\}])/i'
            , '$1#$2$3$4$5', $css);

        // remove spaces between font families
        $css = preg_replace_callback('/font-family:([^;}]+)([;}])/'
            ,array($this, '_fontFamilyCB'), $css);

        $css = preg_replace('/@import\\s+url/', '@import url', $css);

        // replace any ws involving newlines with a single newline
        $css = preg_replace('/[ \\t]*\\n+\\s*/', "\n", $css);

        // separate common descendent selectors w/ newlines (to limit line lengths)
        $css = preg_replace('/([\\w#\\.\\*]+)\\s+([\\w#\\.\\*]+){/', "$1\n$2{", $css);

        // Use newline after 1st numeric value (to limit line lengths).
        $css = preg_replace('/
            ((?:padding|margin|border|outline):\\d+(?:px|em)?) # 1 = prop : 1st numeric value
            \\s+
            /x'
            ,"$1\n", $css);

        // prevent triggering IE6 bug: http://www.crankygeek.com/ie6pebug/
        $css = preg_replace('/:first-l(etter|ine)\\{/', ':first-l$1 {', $css);

        return trim($css);
    }

    /**
     * Replace what looks like a set of selectors
     *
     * @param array $m regex matches
     *
     * @return string
     */
    protected function _selectorsCB($m)
    {
        // remove ws around the combinators
        return preg_replace('/\\s*([,>+~])\\s*/', '$1', $m[0]);
    }

    /**
     * Process a comment and return a replacement
     *
     * @param array $m regex matches
     *
     * @return string
     */
    protected function _commentCB($m)
    {
        $hasSurroundingWs = (trim($m[0]) !== $m[1]);
        $m = $m[1];
        // $m is the comment content w/o the surrounding tokens,
        // but the return value will replace the entire comment.
        if ($m === 'keep') {
            return '/**/';
        }
        if ($m === '" "') {
            // component of http://tantek.com/CSS/Examples/midpass.html
            return '/*" "*/';
        }
        if (preg_match('@";\\}\\s*\\}/\\*\\s+@', $m)) {
            // component of http://tantek.com/CSS/Examples/midpass.html
            return '/*";}}/* */';
        }
        if ($this->_inHack) {
            // inversion: feeding only to one browser
            if (preg_match('@
                    ^/               # comment started like /*/
                    \\s*
                    (\\S[\\s\\S]+?) # has at least some non-ws content
                    \\s*
                    /\\*             # ends like /*/ or /**/
                @x', $m, $n)) {
                // end hack mode after this comment, but preserve the hack and comment content
                $this->_inHack = false;
                return "/*/{$n[1]}/**/";
            }
        }
        if (substr($m, -1) === '\\') { // comment ends like \*/
            // begin hack mode and preserve hack
            $this->_inHack = true;
            return '/*\\*/';
        }
        if ($m !== '' && $m[0] === '/') { // comment looks like /*/ foo */
            // begin hack mode and preserve hack
            $this->_inHack = true;
            return '/*/*/';
        }
        if ($this->_inHack) {
            // a regular comment ends hack mode but should be preserved
            $this->_inHack = false;
            return '/**/';
        }
        // Issue 107: if there's any surrounding whitespace, it may be important, so
        // replace the comment with a single space
        return $hasSurroundingWs // remove all other comments
            ? ' '
            : '';
    }

    /**
     * Process a font-family listing and return a replacement
     *
     * @param array $m regex matches
     *
     * @return string
     */
    protected function _fontFamilyCB($m)
    {
        $m[1] = preg_replace('/
                \\s*
                (
                    "[^"]+"     # 1 = family in double qutoes
                    |\'[^\']+\' # or 1 = family in single quotes
                    |[\\w\\-]+   # or 1 = unquoted family
                )
                \\s*
            /x', '$1', $m[1]);
        return 'font-family:' . $m[1] . $m[2];
    }
}

/**
 * CssMin - A (simple) css minifier with benefits
 *
 * --
 * Copyright (c) 2011 Joe Scylla <joe.scylla@gmail.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 * --
 *
 * @package     CssMin
 * @link        http://code.google.com/p/cssmin/
 * @author      Joe Scylla <joe.scylla@gmail.com>
 * @copyright   2008 - 2011 Joe Scylla <joe.scylla@gmail.com>
 * @license     http://opensource.org/licenses/mit-license.php MIT License
 * @version     3.0.1
 */
 abstract class aCssToken { abstract public function __toString(); } abstract class aCssRulesetStartToken extends aCssToken { } abstract class aCssRulesetEndToken extends aCssToken { public function __toString() { return "}"; } } abstract class aCssParserPlugin { protected $configuration = array(); protected $parser = null; protected $buffer = ""; public function __construct(CssParser $parser, array $configuration = null) { $this->configuration = $configuration; $this->parser = $parser; } abstract public function getTriggerChars(); abstract public function getTriggerStates(); abstract public function parse($index, $char, $previousChar, $state); } abstract class aCssMinifierPlugin { protected $configuration = array(); protected $minifier = null; public function __construct(CssMinifier $minifier, array $configuration = array()) { $this->configuration = $configuration; $this->minifier = $minifier; } abstract public function apply(aCssToken &$token); abstract public function getTriggerTokens(); } abstract class aCssMinifierFilter { protected $configuration = array(); protected $minifier = null; public function __construct(CssMinifier $minifier, array $configuration = array()) { $this->configuration = $configuration; $this->minifier = $minifier; } abstract public function apply(array &$tokens); } abstract class aCssFormatter { protected $indent = "       "; protected $padding = 0; protected $tokens = array(); public function __construct(array $tokens, $indent = null, $padding = null) { $this->tokens = $tokens; $this->indent = !is_null($indent) ? $indent : $this->indent; $this->padding = !is_null($padding) ? $padding : $this->padding; } abstract public function __toString(); } abstract class aCssDeclarationToken extends aCssToken { public $IsImportant = false; public $IsLast = false; public $Property = ""; public $Value = ""; public function __construct($property, $value, $isImportant = false, $isLast = false) { $this->Property = $property; $this->Value = $value; $this->IsImportant = $isImportant; $this->IsLast = $isLast; } public function __toString() { return $this->Property . ":" . $this->Value . ($this->IsImportant ? " !important" : "") . ($this->IsLast ? "" : ";"); } } abstract class aCssAtBlockStartToken extends aCssToken { } abstract class aCssAtBlockEndToken extends aCssToken { public function __toString() { return "}"; } } class CssWhitesmithsFormatter extends aCssFormatter { public function __toString() { $r = array(); $level = 0; for ($i = 0, $l = count($this->tokens); $i < $l; $i++) { $token = $this->tokens[$i]; $class = get_class($token); $indent = str_repeat($this->indent, $level); if ($class === "CssCommentToken") { $lines = array_map("trim", explode("\n", $token->Comment)); for ($ii = 0, $ll = count($lines); $ii < $ll; $ii++) { $r[] = $indent . (substr($lines[$ii], 0, 1) == "*" ? " " : "") . $lines[$ii]; } } elseif ($class === "CssAtCharsetToken") { $r[] = $indent . "@charset " . $token->Charset . ";"; } elseif ($class === "CssAtFontFaceStartToken") { $r[] = $indent . "@font-face"; $r[] = $this->indent . $indent . "{"; $level++; } elseif ($class === "CssAtImportToken") { $r[] = $indent . "@import " . $token->Import . " " . implode(", ", $token->MediaTypes) . ";"; } elseif ($class === "CssAtKeyframesStartToken") { $r[] = $indent . "@keyframes \"" . $token->Name . "\""; $r[] = $this->indent . $indent . "{"; $level++; } elseif ($class === "CssAtMediaStartToken") { $r[] = $indent . "@media " . implode(", ", $token->MediaTypes); $r[] = $this->indent . $indent . "{"; $level++; } elseif ($class === "CssAtPageStartToken") { $r[] = $indent . "@page"; $r[] = $this->indent . $indent . "{"; $level++; } elseif ($class === "CssAtVariablesStartToken") { $r[] = $indent . "@variables " . implode(", ", $token->MediaTypes); $r[] = $this->indent . $indent . "{"; $level++; } elseif ($class === "CssRulesetStartToken" || $class === "CssAtKeyframesRulesetStartToken") { $r[] = $indent . implode(", ", $token->Selectors); $r[] = $this->indent . $indent . "{"; $level++; } elseif ($class == "CssAtFontFaceDeclarationToken" || $class === "CssAtKeyframesRulesetDeclarationToken" || $class === "CssAtPageDeclarationToken" || $class == "CssAtVariablesDeclarationToken" || $class === "CssRulesetDeclarationToken" ) { $declaration = $indent . $token->Property . ": "; if ($this->padding) { $declaration = str_pad($declaration, $this->padding, " ", STR_PAD_RIGHT); } $r[] = $declaration . $token->Value . ($token->IsImportant ? " !important" : "") . ";"; } elseif ($class === "CssAtFontFaceEndToken" || $class === "CssAtMediaEndToken" || $class === "CssAtKeyframesEndToken" || $class === "CssAtKeyframesRulesetEndToken" || $class === "CssAtPageEndToken" || $class === "CssAtVariablesEndToken" || $class === "CssRulesetEndToken" ) { $r[] = $indent . "}"; $level--; } } return implode("\n", $r); } } class CssVariablesMinifierPlugin extends aCssMinifierPlugin { private $reMatch = "/var\((.+)\)/iSU"; private $variables = null; public function getVariables() { return $this->variables; } public function apply(aCssToken &$token) { if (stripos($token->Value, "var") !== false && preg_match_all($this->reMatch, $token->Value, $m)) { $mediaTypes = $token->MediaTypes; if (!in_array("all", $mediaTypes)) { $mediaTypes[] = "all"; } for ($i = 0, $l = count($m[0]); $i < $l; $i++) { $variable = trim($m[1][$i]); foreach ($mediaTypes as $mediaType) { if (isset($this->variables[$mediaType], $this->variables[$mediaType][$variable])) { $token->Value = str_replace($m[0][$i], $this->variables[$mediaType][$variable], $token->Value); continue 2; } } CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": No value found for variable <code>" . $variable . "</code> in media types <code>" . implode(", ", $mediaTypes) . "</code>", (string) $token)); $token = new CssNullToken(); return true; } } return false; } public function getTriggerTokens() { return array ( "CssAtFontFaceDeclarationToken", "CssAtPageDeclarationToken", "CssRulesetDeclarationToken" ); } public function setVariables(array $variables) { $this->variables = $variables; } } class CssVariablesMinifierFilter extends aCssMinifierFilter { public function apply(array &$tokens) { $variables = array(); $defaultMediaTypes = array("all"); $mediaTypes = array(); $remove = array(); for($i = 0, $l = count($tokens); $i < $l; $i++) { if (get_class($tokens[$i]) === "CssAtVariablesStartToken") { $remove[] = $i; $mediaTypes = (count($tokens[$i]->MediaTypes) == 0 ? $defaultMediaTypes : $tokens[$i]->MediaTypes); foreach ($mediaTypes as $mediaType) { if (!isset($variables[$mediaType])) { $variables[$mediaType] = array(); } } for($i = $i; $i < $l; $i++) { if (get_class($tokens[$i]) === "CssAtVariablesDeclarationToken") { foreach ($mediaTypes as $mediaType) { $variables[$mediaType][$tokens[$i]->Property] = $tokens[$i]->Value; } $remove[] = $i; } elseif (get_class($tokens[$i]) === "CssAtVariablesEndToken") { $remove[] = $i; break; } } } } foreach($variables as $mediaType => $null) { foreach($variables[$mediaType] as $variable => $value) { if (stripos($value, "var") !== false && preg_match_all("/var\((.+)\)/iSU", $value, $m)) { for ($i = 0, $l = count($m[0]); $i < $l; $i++) { $variables[$mediaType][$variable] = str_replace($m[0][$i], (isset($variables[$mediaType][$m[1][$i]]) ? $variables[$mediaType][$m[1][$i]] : ""), $variables[$mediaType][$variable]); } } } } foreach ($remove as $i) { $tokens[$i] = null; } if (!($plugin = $this->minifier->getPlugin("CssVariablesMinifierPlugin"))) { CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": The plugin <code>CssVariablesMinifierPlugin</code> was not found but is required for <code>" . __CLASS__ . "</code>")); } else { $plugin->setVariables($variables); } return count($remove); } } class CssUrlParserPlugin extends aCssParserPlugin { public function getTriggerChars() { return array("(", ")"); } public function getTriggerStates() { return false; } public function parse($index, $char, $previousChar, $state) { if ($char === "(" && strtolower(substr($this->parser->getSource(), $index - 3, 4)) === "url(" && $state !== "T_URL") { $this->parser->pushState("T_URL"); $this->parser->setExclusive(__CLASS__); } elseif ($char === "\n" && $previousChar === "\\" && $state === "T_URL") { $this->parser->setBuffer(substr($this->parser->getBuffer(), 0, -2)); } elseif ($char === "\n" && $previousChar !== "\\" && $state === "T_URL") { $line = $this->parser->getBuffer(); $this->parser->setBuffer(substr($this->parser->getBuffer(), 0, -1) . ")"); $this->parser->popState(); $this->parser->unsetExclusive(); CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Unterminated string literal", $line . "_")); } elseif ($char === ")" && $state === "T_URL") { $this->parser->popState(); $this->parser->unsetExclusive(); } else { return false; } return true; } } class CssStringParserPlugin extends aCssParserPlugin { private $delimiterChar = null; public function getTriggerChars() { return array("\"", "'", "\n"); } public function getTriggerStates() { return false; } public function parse($index, $char, $previousChar, $state) { if (($char === "\"" || $char === "'") && $state !== "T_STRING") { $this->delimiterChar = $char; $this->parser->pushState("T_STRING"); $this->parser->setExclusive(__CLASS__); } elseif ($char === "\n" && $previousChar === "\\" && $state === "T_STRING") { $this->parser->setBuffer(substr($this->parser->getBuffer(), 0, -2)); } elseif ($char === "\n" && $previousChar !== "\\" && $state === "T_STRING") { $line = $this->parser->getBuffer(); $this->parser->popState(); $this->parser->unsetExclusive(); $this->parser->setBuffer(substr($this->parser->getBuffer(), 0, -1) . $this->delimiterChar); CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Unterminated string literal", $line . "_")); $this->delimiterChar = null; } elseif ($char === $this->delimiterChar && $state === "T_STRING") { if ($previousChar == "\\") { $source = $this->parser->getSource(); $c = 1; $i = $index - 2; while (substr($source, $i, 1) === "\\") { $c++; $i--; } if ($c % 2) { return false; } } $this->parser->popState(); $this->parser->unsetExclusive(); $this->delimiterChar = null; } else { return false; } return true; } } class CssSortRulesetPropertiesMinifierFilter extends aCssMinifierFilter { public function apply(array &$tokens) { $r = 0; for ($i = 0, $l = count($tokens); $i < $l; $i++) { if (get_class($tokens[$i]) !== "CssRulesetStartToken") { continue; } $endIndex = false; for ($ii = $i + 1; $ii < $l; $ii++) { if (get_class($tokens[$ii]) !== "CssRulesetEndToken") { continue; } $endIndex = $ii; break; } if (!$endIndex) { break; } $startIndex = $i; $i = $endIndex; if ($endIndex - $startIndex <= 2) { continue; } for ($ii = $startIndex + 1; $ii < $endIndex; $ii++) { if (get_class($tokens[$ii]) !== "CssRulesetDeclarationToken") { continue(2); } } $declarations = array_slice($tokens, $startIndex + 1, $endIndex - $startIndex - 1); $sortRequired = $lastPropertyName = false; foreach ($declarations as $declaration) { if ($lastPropertyName) { if (strcmp($lastPropertyName, $declaration->Property) > 0) { $sortRequired = true; break; } } $lastPropertyName = $declaration->Property; } if (!$sortRequired) { continue; } usort($declarations, array(__CLASS__, "userDefinedSort1")); for ($ii = 0, $ll = count($declarations) - 1; $ii <= $ll; $ii++) { if ($ii == $ll) { $declarations[$ii]->IsLast = true; } else { $declarations[$ii]->IsLast = false; } } array_splice($tokens, $startIndex + 1, $endIndex - $startIndex - 1, $declarations); $r += $endIndex - $startIndex - 1; } return $r; } public static function userDefinedSort1($a, $b) { return strcmp($a->Property, $b->Property); } } class CssRulesetStartToken extends aCssRulesetStartToken { public $Selectors = array(); public function __construct(array $selectors = array()) { $this->Selectors = $selectors; } public function __toString() { return implode(",", $this->Selectors) . "{"; } } class CssRulesetParserPlugin extends aCssParserPlugin { public function getTriggerChars() { return array(",", "{", "}", ":", ";"); } public function getTriggerStates() { return array("T_DOCUMENT", "T_AT_MEDIA", "T_RULESET::SELECTORS", "T_RULESET", "T_RULESET_DECLARATION"); } private $selectors = array(); public function parse($index, $char, $previousChar, $state) { if ($char === "," && ($state === "T_DOCUMENT" || $state === "T_AT_MEDIA" || $state === "T_RULESET::SELECTORS")) { if ($state !== "T_RULESET::SELECTORS") { $this->parser->pushState("T_RULESET::SELECTORS"); } $this->selectors[] = $this->parser->getAndClearBuffer(",{"); } elseif ($char === "{" && ($state === "T_DOCUMENT" || $state === "T_AT_MEDIA" || $state === "T_RULESET::SELECTORS")) { if ($this->parser->getBuffer() !== "") { $this->selectors[] = $this->parser->getAndClearBuffer(",{"); if ($state == "T_RULESET::SELECTORS") { $this->parser->popState(); } $this->parser->pushState("T_RULESET"); $this->parser->appendToken(new CssRulesetStartToken($this->selectors)); $this->selectors = array(); } } elseif ($char === ":" && $state === "T_RULESET") { $this->parser->pushState("T_RULESET_DECLARATION"); $this->buffer = $this->parser->getAndClearBuffer(":;", true); } elseif ($char === ":" && $state === "T_RULESET_DECLARATION") { if ($this->buffer === "filter") { return false; } CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Unterminated declaration", $this->buffer . ":" . $this->parser->getBuffer() . "_")); } elseif (($char === ";" || $char === "}") && $state === "T_RULESET_DECLARATION") { $value = $this->parser->getAndClearBuffer(";}"); if (strtolower(substr($value, -10, 10)) === "!important") { $value = trim(substr($value, 0, -10)); $isImportant = true; } else { $isImportant = false; } $this->parser->popState(); $this->parser->appendToken(new CssRulesetDeclarationToken($this->buffer, $value, $this->parser->getMediaTypes(), $isImportant)); if ($char === "}") { $this->parser->appendToken(new CssRulesetEndToken()); $this->parser->popState(); } $this->buffer = ""; } elseif ($char === "}" && $state === "T_RULESET") { $this->parser->popState(); $this->parser->clearBuffer(); $this->parser->appendToken(new CssRulesetEndToken()); $this->buffer = ""; $this->selectors = array(); } else { return false; } return true; } } class CssRulesetEndToken extends aCssRulesetEndToken { } class CssRulesetDeclarationToken extends aCssDeclarationToken { public $MediaTypes = array("all"); public function __construct($property, $value, $mediaTypes = null, $isImportant = false, $isLast = false) { parent::__construct($property, $value, $isImportant, $isLast); $this->MediaTypes = $mediaTypes ? $mediaTypes : array("all"); } } class CssRemoveLastDelarationSemiColonMinifierFilter extends aCssMinifierFilter { public function apply(array &$tokens) { for ($i = 0, $l = count($tokens); $i < $l; $i++) { $current = get_class($tokens[$i]); $next = isset($tokens[$i+1]) ? get_class($tokens[$i+1]) : false; if (($current === "CssRulesetDeclarationToken" && $next === "CssRulesetEndToken") || ($current === "CssAtFontFaceDeclarationToken" && $next === "CssAtFontFaceEndToken") || ($current === "CssAtPageDeclarationToken" && $next === "CssAtPageEndToken")) { $tokens[$i]->IsLast = true; } } return 0; } } class CssRemoveEmptyRulesetsMinifierFilter extends aCssMinifierFilter { public function apply(array &$tokens) { $r = 0; for ($i = 0, $l = count($tokens); $i < $l; $i++) { $current = get_class($tokens[$i]); $next = isset($tokens[$i + 1]) ? get_class($tokens[$i + 1]) : false; if (($current === "CssRulesetStartToken" && $next === "CssRulesetEndToken") || ($current === "CssAtKeyframesRulesetStartToken" && $next === "CssAtKeyframesRulesetEndToken" && !array_intersect(array("from", "0%", "to", "100%"), array_map("strtolower", $tokens[$i]->Selectors))) ) { $tokens[$i] = null; $tokens[$i + 1] = null; $i++; $r = $r + 2; } } return $r; } } class CssRemoveEmptyAtBlocksMinifierFilter extends aCssMinifierFilter { public function apply(array &$tokens) { $r = 0; for ($i = 0, $l = count($tokens); $i < $l; $i++) { $current = get_class($tokens[$i]); $next = isset($tokens[$i + 1]) ? get_class($tokens[$i + 1]) : false; if (($current === "CssAtFontFaceStartToken" && $next === "CssAtFontFaceEndToken") || ($current === "CssAtKeyframesStartToken" && $next === "CssAtKeyframesEndToken") || ($current === "CssAtPageStartToken" && $next === "CssAtPageEndToken") || ($current === "CssAtMediaStartToken" && $next === "CssAtMediaEndToken")) { $tokens[$i] = null; $tokens[$i + 1] = null; $i++; $r = $r + 2; } } return $r; } } class CssRemoveCommentsMinifierFilter extends aCssMinifierFilter { public function apply(array &$tokens) { $r = 0; for ($i = 0, $l = count($tokens); $i < $l; $i++) { if (get_class($tokens[$i]) === "CssCommentToken") { $tokens[$i] = null; $r++; } } return $r; } } class CssParser { private $buffer = ""; private $plugins = array(); private $source = ""; private $state = "T_DOCUMENT"; private $stateExclusive = false; private $stateMediaTypes = false; private $states = array("T_DOCUMENT"); private $tokens = array(); public function __construct($source = null, array $plugins = null) { $plugins = array_merge(array ( "Comment" => true, "String" => true, "Url" => true, "Expression" => true, "Ruleset" => true, "AtCharset" => true, "AtFontFace" => true, "AtImport" => true, "AtKeyframes" => true, "AtMedia" => true, "AtPage" => true, "AtVariables" => true ), is_array($plugins) ? $plugins : array()); foreach ($plugins as $name => $config) { if ($config !== false) { $class = "Css" . $name . "ParserPlugin"; $config = is_array($config) ? $config : array(); if (class_exists($class)) { $this->plugins[] = new $class($this, $config); } else { CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": The plugin <code>" . $name . "</code> with the class name <code>" . $class . "</code> was not found")); } } } if (!is_null($source)) { $this->parse($source); } } public function appendToken(aCssToken $token) { $this->tokens[] = $token; } public function clearBuffer() { $this->buffer = ""; } public function getAndClearBuffer($trim = "", $tolower = false) { $r = $this->getBuffer($trim, $tolower); $this->buffer = ""; return $r; } public function getBuffer($trim = "", $tolower = false) { $r = $this->buffer; if ($trim) { $r = trim($r, " \t\n\r\0\x0B" . $trim); } if ($tolower) { $r = strtolower($r); } return $r; } public function getMediaTypes() { return $this->stateMediaTypes; } public function getSource() { return $this->source; } public function getState() { return $this->state; } public function getPlugin($class) { static $index = null; if (is_null($index)) { $index = array(); for ($i = 0, $l = count($this->plugins); $i < $l; $i++) { $index[get_class($this->plugins[$i])] = $i; } } return isset($index[$class]) ? $this->plugins[$index[$class]] : false; } public function getTokens() { return $this->tokens; } public function isState($state) { return ($this->state == $state); } public function parse($source) { $this->source = ""; $this->tokens = array(); $globalTriggerChars = ""; $plugins = $this->plugins; $pluginCount = count($plugins); $pluginIndex = array(); $pluginTriggerStates = array(); $pluginTriggerChars = array(); for ($i = 0, $l = count($plugins); $i < $l; $i++) { $tPluginClassName = get_class($plugins[$i]); $pluginTriggerChars[$i] = implode("", $plugins[$i]->getTriggerChars()); $tPluginTriggerStates = $plugins[$i]->getTriggerStates(); $pluginTriggerStates[$i] = $tPluginTriggerStates === false ? false : "|" . implode("|", $tPluginTriggerStates) . "|"; $pluginIndex[$tPluginClassName] = $i; for ($ii = 0, $ll = strlen($pluginTriggerChars[$i]); $ii < $ll; $ii++) { $c = substr($pluginTriggerChars[$i], $ii, 1); if (strpos($globalTriggerChars, $c) === false) { $globalTriggerChars .= $c; } } } $source = str_replace("\r\n", "\n", $source); $source = str_replace("\r", "\n", $source); $this->source = $source; $buffer = &$this->buffer; $exclusive = &$this->stateExclusive; $state = &$this->state; $c = $p = null; for ($i = 0, $l = strlen($source); $i < $l; $i++) { $c = $source[$i]; if ($exclusive === false) { if ($c === "\n" || $c === "\t") { $c = " "; } if ($c === " " && $p === " ") { continue; } } $buffer .= $c; if (strpos($globalTriggerChars, $c) !== false) { if ($exclusive) { $tPluginIndex = $pluginIndex[$exclusive]; if (strpos($pluginTriggerChars[$tPluginIndex], $c) !== false && ($pluginTriggerStates[$tPluginIndex] === false || strpos($pluginTriggerStates[$tPluginIndex], $state) !== false)) { $r = $plugins[$tPluginIndex]->parse($i, $c, $p, $state); if ($r === true) { continue; } elseif ($r !== false && $r != $i) { $i = $r; continue; } } } else { $triggerState = "|" . $state . "|"; for ($ii = 0, $ll = $pluginCount; $ii < $ll; $ii++) { if (strpos($pluginTriggerChars[$ii], $c) !== false && ($pluginTriggerStates[$ii] === false || strpos($pluginTriggerStates[$ii], $triggerState) !== false)) { $r = $plugins[$ii]->parse($i, $c, $p, $state); if ($r === true) { break; } elseif ($r !== false && $r != $i) { $i = $r; break; } } } } } $p = $c; } return $this->tokens; } public function popState() { $r = array_pop($this->states); $this->state = $this->states[count($this->states) - 1]; return $r; } public function pushState($state) { $r = array_push($this->states, $state); $this->state = $this->states[count($this->states) - 1]; return $r; } public function setBuffer($buffer) { $this->buffer = $buffer; } public function setExclusive($exclusive) { $this->stateExclusive = $exclusive; } public function setMediaTypes(array $mediaTypes) { $this->stateMediaTypes = $mediaTypes; } public function setState($state) { $r = array_pop($this->states); array_push($this->states, $state); $this->state = $this->states[count($this->states) - 1]; return $r; } public function unsetExclusive() { $this->stateExclusive = false; } public function unsetMediaTypes() { $this->stateMediaTypes = false; } } class CssOtbsFormatter extends aCssFormatter { public function __toString() { $r = array(); $level = 0; for ($i = 0, $l = count($this->tokens); $i < $l; $i++) { $token = $this->tokens[$i]; $class = get_class($token); $indent = str_repeat($this->indent, $level); if ($class === "CssCommentToken") { $lines = array_map("trim", explode("\n", $token->Comment)); for ($ii = 0, $ll = count($lines); $ii < $ll; $ii++) { $r[] = $indent . (substr($lines[$ii], 0, 1) == "*" ? " " : "") . $lines[$ii]; } } elseif ($class === "CssAtCharsetToken") { $r[] = $indent . "@charset " . $token->Charset . ";"; } elseif ($class === "CssAtFontFaceStartToken") { $r[] = $indent . "@font-face {"; $level++; } elseif ($class === "CssAtImportToken") { $r[] = $indent . "@import " . $token->Import . " " . implode(", ", $token->MediaTypes) . ";"; } elseif ($class === "CssAtKeyframesStartToken") { $r[] = $indent . "@keyframes \"" . $token->Name . "\" {"; $level++; } elseif ($class === "CssAtMediaStartToken") { $r[] = $indent . "@media " . implode(", ", $token->MediaTypes) . " {"; $level++; } elseif ($class === "CssAtPageStartToken") { $r[] = $indent . "@page {"; $level++; } elseif ($class === "CssAtVariablesStartToken") { $r[] = $indent . "@variables " . implode(", ", $token->MediaTypes) . " {"; $level++; } elseif ($class === "CssRulesetStartToken" || $class === "CssAtKeyframesRulesetStartToken") { $r[] = $indent . implode(", ", $token->Selectors) . " {"; $level++; } elseif ($class == "CssAtFontFaceDeclarationToken" || $class === "CssAtKeyframesRulesetDeclarationToken" || $class === "CssAtPageDeclarationToken" || $class == "CssAtVariablesDeclarationToken" || $class === "CssRulesetDeclarationToken" ) { $declaration = $indent . $token->Property . ": "; if ($this->padding) { $declaration = str_pad($declaration, $this->padding, " ", STR_PAD_RIGHT); } $r[] = $declaration . $token->Value . ($token->IsImportant ? " !important" : "") . ";"; } elseif ($class === "CssAtFontFaceEndToken" || $class === "CssAtMediaEndToken" || $class === "CssAtKeyframesEndToken" || $class === "CssAtKeyframesRulesetEndToken" || $class === "CssAtPageEndToken" || $class === "CssAtVariablesEndToken" || $class === "CssRulesetEndToken" ) { $level--; $r[] = str_repeat($indent, $level) . "}"; } } return implode("\n", $r); } } class CssNullToken extends aCssToken { public function __toString() { return ""; } } class CssMinifier { private $filters = array(); private $plugins = array(); private $minified = ""; public function __construct($source = null, array $filters = null, array $plugins = null) { $filters = array_merge(array ( "ImportImports" => false, "RemoveComments" => true, "RemoveEmptyRulesets" => true, "RemoveEmptyAtBlocks" => true, "ConvertLevel3Properties" => false, "ConvertLevel3AtKeyframes" => false, "Variables" => true, "RemoveLastDelarationSemiColon" => true ), is_array($filters) ? $filters : array()); $plugins = array_merge(array ( "Variables" => true, "ConvertFontWeight" => false, "ConvertHslColors" => false, "ConvertRgbColors" => false, "ConvertNamedColors" => false, "CompressColorValues" => false, "CompressUnitValues" => false, "CompressExpressionValues" => false ), is_array($plugins) ? $plugins : array()); foreach ($filters as $name => $config) { if ($config !== false) { $class = "Css" . $name . "MinifierFilter"; $config = is_array($config) ? $config : array(); if (class_exists($class)) { $this->filters[] = new $class($this, $config); } else { CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": The filter <code>" . $name . "</code> with the class name <code>" . $class . "</code> was not found")); } } } foreach ($plugins as $name => $config) { if ($config !== false) { $class = "Css" . $name . "MinifierPlugin"; $config = is_array($config) ? $config : array(); if (class_exists($class)) { $this->plugins[] = new $class($this, $config); } else { CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": The plugin <code>" . $name . "</code> with the class name <code>" . $class . "</code> was not found")); } } } if (!is_null($source)) { $this->minify($source); } } public function getMinified() { return $this->minified; } public function getPlugin($class) { static $index = null; if (is_null($index)) { $index = array(); for ($i = 0, $l = count($this->plugins); $i < $l; $i++) { $index[get_class($this->plugins[$i])] = $i; } } return isset($index[$class]) ? $this->plugins[$index[$class]] : false; } public function minify($source) { $r = ""; $parser = new CssParser($source); $tokens = $parser->getTokens(); $filters = $this->filters; $filterCount = count($this->filters); $plugins = $this->plugins; $pluginCount = count($plugins); $pluginIndex = array(); $pluginTriggerTokens = array(); $globalTriggerTokens = array(); for ($i = 0, $l = count($plugins); $i < $l; $i++) { $tPluginClassName = get_class($plugins[$i]); $pluginTriggerTokens[$i] = $plugins[$i]->getTriggerTokens(); foreach ($pluginTriggerTokens[$i] as $v) { if (!in_array($v, $globalTriggerTokens)) { $globalTriggerTokens[] = $v; } } $pluginTriggerTokens[$i] = "|" . implode("|", $pluginTriggerTokens[$i]) . "|"; $pluginIndex[$tPluginClassName] = $i; } $globalTriggerTokens = "|" . implode("|", $globalTriggerTokens) . "|"; for($i = 0; $i < $filterCount; $i++) { if ($filters[$i]->apply($tokens) > 0) { $tokens = array_values(array_filter($tokens)); } } $tokenCount = count($tokens); for($i = 0; $i < $tokenCount; $i++) { $triggerToken = "|" . get_class($tokens[$i]) . "|"; if (strpos($globalTriggerTokens, $triggerToken) !== false) { for($ii = 0; $ii < $pluginCount; $ii++) { if (strpos($pluginTriggerTokens[$ii], $triggerToken) !== false || $pluginTriggerTokens[$ii] === false) { if ($plugins[$ii]->apply($tokens[$i]) === true) { continue 2; } } } } } for($i = 0; $i < $tokenCount; $i++) { $r .= (string) $tokens[$i]; } $this->minified = $r; return $r; } } class CssMin { private static $classIndex = array(); private static $errors = array(); private static $isVerbose = false; public static function autoload($class) { if (isset(self::$classIndex[$class])) { require(self::$classIndex[$class]); } } public static function getErrors() { return self::$errors; } public static function hasErrors() { return count(self::$errors) > 0; } public static function initialise() { $paths = array(dirname(__FILE__)); while (list($i, $path) = each($paths)) { $subDirectorys = glob($path . "*", GLOB_MARK | GLOB_ONLYDIR | GLOB_NOSORT); if (is_array($subDirectorys)) { foreach ($subDirectorys as $subDirectory) { $paths[] = $subDirectory; } } $files = glob($path . "*.php", 0); if (is_array($files)) { foreach ($files as $file) { $class = substr(basename($file), 0, -4); self::$classIndex[$class] = $file; } } } krsort(self::$classIndex); if (function_exists("spl_autoload_register") && !is_callable("__autoload")) { spl_autoload_register(array(__CLASS__, "autoload")); } else { foreach (self::$classIndex as $class => $file) { if (!class_exists($class)) { require_once($file); } } } } public static function minify($source, array $filters = null, array $plugins = null) { self::$errors = array(); $minifier = new CssMinifier($source, $filters, $plugins); return $minifier->getMinified(); } public static function parse($source, array $plugins = null) { self::$errors = array(); $parser = new CssParser($source, $plugins); return $parser->getTokens(); } public static function setVerbose($to) { self::$isVerbose = (boolean) $to; return self::$isVerbose; } public static function triggerError(CssError $error) { self::$errors[] = $error; if (self::$isVerbose) { trigger_error((string) $error, E_USER_WARNING); } } } CssMin::initialise(); class CssImportImportsMinifierFilter extends aCssMinifierFilter { private $imported = array(); public function apply(array &$tokens) { if (!isset($this->configuration["BasePath"]) || !is_dir($this->configuration["BasePath"])) { CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Base path <code>" . ($this->configuration["BasePath"] ? $this->configuration["BasePath"] : "null"). "</code> is not a directory")); return 0; } for ($i = 0, $l = count($tokens); $i < $l; $i++) { if (get_class($tokens[$i]) === "CssAtImportToken") { $import = $this->configuration["BasePath"] . "/" . $tokens[$i]->Import; if (!is_file($import)) { CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Import file <code>" . $import. "</code> was not found.", (string) $tokens[$i])); } elseif (in_array($import, $this->imported)) { CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Import file <code>" . $import. "</code> was already imported.", (string) $tokens[$i])); $tokens[$i] = null; } else { $this->imported[] = $import; $parser = new CssParser(file_get_contents($import)); $import = $parser->getTokens(); if (count($tokens[$i]->MediaTypes) > 0 && !(count($tokens[$i]->MediaTypes) == 1 && $tokens[$i]->MediaTypes[0] == "all")) { $blocks = array(); for($ii = 0, $ll = count($import); $ii < $ll; $ii++) { if (get_class($import[$ii]) === "CssAtImportToken") { if (count($import[$ii]->MediaTypes) == 0 || (count($import[$ii]->MediaTypes) == 1 && $import[$ii]->MediaTypes[0] == "all")) { $import[$ii]->MediaTypes = $tokens[$i]->MediaTypes; } elseif (count($import[$ii]->MediaTypes > 0)) { foreach ($import[$ii]->MediaTypes as $index => $mediaType) { if (!in_array($mediaType, $tokens[$i]->MediaTypes)) { unset($import[$ii]->MediaTypes[$index]); } } $import[$ii]->MediaTypes = array_values($import[$ii]->MediaTypes); if (count($import[$ii]->MediaTypes) == 0) { $import[$ii] = null; } } } } for($ii = 0, $ll = count($import); $ii < $ll; $ii++) { if (get_class($import[$ii]) === "CssAtMediaStartToken") { foreach ($import[$ii]->MediaTypes as $index => $mediaType) { if (!in_array($mediaType, $tokens[$i]->MediaTypes)) { unset($import[$ii]->MediaTypes[$index]); } $import[$ii]->MediaTypes = array_values($import[$ii]->MediaTypes); } } } for($ii = 0, $ll = count($import); $ii < $ll; $ii++) { if (get_class($import[$ii]) === "CssAtMediaStartToken") { if (count($import[$ii]->MediaTypes) === 0) { for ($iii = $ii; $iii < $ll; $iii++) { if (get_class($import[$iii]) === "CssAtMediaEndToken") { break; } } if (get_class($import[$iii]) === "CssAtMediaEndToken") { array_splice($import, $ii, $iii - $ii + 1, array()); $ll = count($import); } } } } for($ii = 0, $ll = count($import); $ii < $ll; $ii++) { if (get_class($import[$ii]) === "CssAtMediaStartToken" && count(array_diff($tokens[$i]->MediaTypes, $import[$ii]->MediaTypes)) === 0) { for ($iii = $ii; $iii < $ll; $iii++) { if (get_class($import[$iii]) == "CssAtMediaEndToken") { break; } } if (get_class($import[$iii]) == "CssAtMediaEndToken") { unset($import[$ii]); unset($import[$iii]); $import = array_values($import); $ll = count($import); } } } for($ii = 0, $ll = count($import); $ii < $ll; $ii++) { $class = get_class($import[$ii]); if ($class === "CssAtImportToken" || $class === "CssAtCharsetToken") { $blocks = array_merge($blocks, array_splice($import, $ii, 1, array())); $ll = count($import); } } for($ii = 0, $ll = count($import); $ii < $ll; $ii++) { $class = get_class($import[$ii]); if ($class === "CssAtFontFaceStartToken" || $class === "CssAtMediaStartToken" || $class === "CssAtPageStartToken" || $class === "CssAtVariablesStartToken") { for ($iii = $ii; $iii < $ll; $iii++) { $class = get_class($import[$iii]); if ($class === "CssAtFontFaceEndToken" || $class === "CssAtMediaEndToken" || $class === "CssAtPageEndToken" || $class === "CssAtVariablesEndToken") { break; } } $class = get_class($import[$iii]); if (isset($import[$iii]) && ($class === "CssAtFontFaceEndToken" || $class === "CssAtMediaEndToken" || $class === "CssAtPageEndToken" || $class === "CssAtVariablesEndToken")) { $blocks = array_merge($blocks, array_splice($import, $ii, $iii - $ii + 1, array())); $ll = count($import); } } } $import = array_merge($blocks, array(new CssAtMediaStartToken($tokens[$i]->MediaTypes)), $import, array(new CssAtMediaEndToken())); } array_splice($tokens, $i, 1, $import); $i--; $l = count($tokens); } } } } } class CssExpressionParserPlugin extends aCssParserPlugin { private $leftBraces = 0; private $rightBraces = 0; public function getTriggerChars() { return array("(", ")", ";", "}"); } public function getTriggerStates() { return false; } public function parse($index, $char, $previousChar, $state) { if ($char === "(" && strtolower(substr($this->parser->getSource(), $index - 10, 11)) === "expression(" && $state !== "T_EXPRESSION") { $this->parser->pushState("T_EXPRESSION"); $this->leftBraces++; } elseif ($char === "(" && $state === "T_EXPRESSION") { $this->leftBraces++; } elseif ($char === ")" && $state === "T_EXPRESSION") { $this->rightBraces++; } elseif (($char === ";" || $char === "}") && $state === "T_EXPRESSION" && $this->leftBraces === $this->rightBraces) { $this->leftBraces = $this->rightBraces = 0; $this->parser->popState(); return $index - 1; } else { return false; } return true; } } class CssError { public $File = ""; public $Line = 0; public $Message = ""; public $Source = ""; public function __construct($file, $line, $message, $source = "") { $this->File = $file; $this->Line = $line; $this->Message = $message; $this->Source = $source; } public function __toString() { return $this->Message . ($this->Source ? ":<br /><code>" . $this->Source . "</code>": "") . "<br />in file " . $this->File . " at line " . $this->Line; } } class CssConvertRgbColorsMinifierPlugin extends aCssMinifierPlugin { private $reMatch = "/rgb\s*\(\s*([0-9%]+)\s*,\s*([0-9%]+)\s*,\s*([0-9%]+)\s*\)/iS"; public function apply(aCssToken &$token) { if (stripos($token->Value, "rgb") !== false && preg_match($this->reMatch, $token->Value, $m)) { for ($i = 1, $l = count($m); $i < $l; $i++) { if (strpos("%", $m[$i]) !== false) { $m[$i] = substr($m[$i], 0, -1); $m[$i] = (int) (256 * ($m[$i] / 100)); } $m[$i] = str_pad(dechex($m[$i]), 2, "0", STR_PAD_LEFT); } $token->Value = str_replace($m[0], "#" . $m[1] . $m[2] . $m[3], $token->Value); } return false; } public function getTriggerTokens() { return array ( "CssAtFontFaceDeclarationToken", "CssAtPageDeclarationToken", "CssRulesetDeclarationToken" ); } } class CssConvertNamedColorsMinifierPlugin extends aCssMinifierPlugin { private $reMatch = null; private $reReplace = "\"\${1}\" . \$this->transformation[strtolower(\"\${2}\")] . \"\${3}\""; private $transformation = array ( "aliceblue" => "#f0f8ff", "antiquewhite" => "#faebd7", "aqua" => "#0ff", "aquamarine" => "#7fffd4", "azure" => "#f0ffff", "beige" => "#f5f5dc", "black" => "#000", "blue" => "#00f", "blueviolet" => "#8a2be2", "brown" => "#a52a2a", "burlywood" => "#deb887", "cadetblue" => "#5f9ea0", "chartreuse" => "#7fff00", "chocolate" => "#d2691e", "coral" => "#ff7f50", "cornflowerblue" => "#6495ed", "cornsilk" => "#fff8dc", "crimson" => "#dc143c", "darkblue" => "#00008b", "darkcyan" => "#008b8b", "darkgoldenrod" => "#b8860b", "darkgray" => "#a9a9a9", "darkgreen" => "#006400", "darkkhaki" => "#bdb76b", "darkmagenta" => "#8b008b", "darkolivegreen" => "#556b2f", "darkorange" => "#ff8c00", "darkorchid" => "#9932cc", "darkred" => "#8b0000", "darksalmon" => "#e9967a", "darkseagreen" => "#8fbc8f", "darkslateblue" => "#483d8b", "darkslategray" => "#2f4f4f", "darkturquoise" => "#00ced1", "darkviolet" => "#9400d3", "deeppink" => "#ff1493", "deepskyblue" => "#00bfff", "dimgray" => "#696969", "dodgerblue" => "#1e90ff", "firebrick" => "#b22222", "floralwhite" => "#fffaf0", "forestgreen" => "#228b22", "fuchsia" => "#f0f", "gainsboro" => "#dcdcdc", "ghostwhite" => "#f8f8ff", "gold" => "#ffd700", "goldenrod" => "#daa520", "gray" => "#808080", "green" => "#008000", "greenyellow" => "#adff2f", "honeydew" => "#f0fff0", "hotpink" => "#ff69b4", "indianred" => "#cd5c5c", "indigo" => "#4b0082", "ivory" => "#fffff0", "khaki" => "#f0e68c", "lavender" => "#e6e6fa", "lavenderblush" => "#fff0f5", "lawngreen" => "#7cfc00", "lemonchiffon" => "#fffacd", "lightblue" => "#add8e6", "lightcoral" => "#f08080", "lightcyan" => "#e0ffff", "lightgoldenrodyellow" => "#fafad2", "lightgreen" => "#90ee90", "lightgrey" => "#d3d3d3", "lightpink" => "#ffb6c1", "lightsalmon" => "#ffa07a", "lightseagreen" => "#20b2aa", "lightskyblue" => "#87cefa", "lightslategray" => "#789", "lightsteelblue" => "#b0c4de", "lightyellow" => "#ffffe0", "lime" => "#0f0", "limegreen" => "#32cd32", "linen" => "#faf0e6", "maroon" => "#800000", "mediumaquamarine" => "#66cdaa", "mediumblue" => "#0000cd", "mediumorchid" => "#ba55d3", "mediumpurple" => "#9370db", "mediumseagreen" => "#3cb371", "mediumslateblue" => "#7b68ee", "mediumspringgreen" => "#00fa9a", "mediumturquoise" => "#48d1cc", "mediumvioletred" => "#c71585", "midnightblue" => "#191970", "mintcream" => "#f5fffa", "mistyrose" => "#ffe4e1", "moccasin" => "#ffe4b5", "navajowhite" => "#ffdead", "navy" => "#000080", "oldlace" => "#fdf5e6", "olive" => "#808000", "olivedrab" => "#6b8e23", "orange" => "#ffa500", "orangered" => "#ff4500", "orchid" => "#da70d6", "palegoldenrod" => "#eee8aa", "palegreen" => "#98fb98", "paleturquoise" => "#afeeee", "palevioletred" => "#db7093", "papayawhip" => "#ffefd5", "peachpuff" => "#ffdab9", "peru" => "#cd853f", "pink" => "#ffc0cb", "plum" => "#dda0dd", "powderblue" => "#b0e0e6", "purple" => "#800080", "red" => "#f00", "rosybrown" => "#bc8f8f", "royalblue" => "#4169e1", "saddlebrown" => "#8b4513", "salmon" => "#fa8072", "sandybrown" => "#f4a460", "seagreen" => "#2e8b57", "seashell" => "#fff5ee", "sienna" => "#a0522d", "silver" => "#c0c0c0", "skyblue" => "#87ceeb", "slateblue" => "#6a5acd", "slategray" => "#708090", "snow" => "#fffafa", "springgreen" => "#00ff7f", "steelblue" => "#4682b4", "tan" => "#d2b48c", "teal" => "#008080", "thistle" => "#d8bfd8", "tomato" => "#ff6347", "turquoise" => "#40e0d0", "violet" => "#ee82ee", "wheat" => "#f5deb3", "white" => "#fff", "whitesmoke" => "#f5f5f5", "yellow" => "#ff0", "yellowgreen" => "#9acd32" ); public function __construct(CssMinifier $minifier, array $configuration = array()) { $this->reMatch = "/(^|\s)+(" . implode("|", array_keys($this->transformation)) . ")(\s|$)+/eiS"; parent::__construct($minifier, $configuration); } public function apply(aCssToken &$token) { $lcValue = strtolower($token->Value); if (isset($this->transformation[$lcValue])) { $token->Value = $this->transformation[$lcValue]; } elseif (preg_match($this->reMatch, $token->Value)) { $token->Value = preg_replace($this->reMatch, $this->reReplace, $token->Value); } return false; } public function getTriggerTokens() { return array ( "CssAtFontFaceDeclarationToken", "CssAtPageDeclarationToken", "CssRulesetDeclarationToken" ); } } class CssConvertLevel3PropertiesMinifierFilter extends aCssMinifierFilter { private $transformations = array ( "animation" => array(null, "-webkit-animation", null, null), "animation-delay" => array(null, "-webkit-animation-delay", null, null), "animation-direction" => array(null, "-webkit-animation-direction", null, null), "animation-duration" => array(null, "-webkit-animation-duration", null, null), "animation-fill-mode" => array(null, "-webkit-animation-fill-mode", null, null), "animation-iteration-count" => array(null, "-webkit-animation-iteration-count", null, null), "animation-name" => array(null, "-webkit-animation-name", null, null), "animation-play-state" => array(null, "-webkit-animation-play-state", null, null), "animation-timing-function" => array(null, "-webkit-animation-timing-function", null, null), "appearance" => array("-moz-appearance", "-webkit-appearance", null, null), "backface-visibility" => array(null, "-webkit-backface-visibility", null, null), "background-clip" => array(null, "-webkit-background-clip", null, null), "background-composite" => array(null, "-webkit-background-composite", null, null), "background-inline-policy" => array("-moz-background-inline-policy", null, null, null), "background-origin" => array(null, "-webkit-background-origin", null, null), "background-position-x" => array(null, null, null, "-ms-background-position-x"), "background-position-y" => array(null, null, null, "-ms-background-position-y"), "background-size" => array(null, "-webkit-background-size", null, null), "behavior" => array(null, null, null, "-ms-behavior"), "binding" => array("-moz-binding", null, null, null), "border-after" => array(null, "-webkit-border-after", null, null), "border-after-color" => array(null, "-webkit-border-after-color", null, null), "border-after-style" => array(null, "-webkit-border-after-style", null, null), "border-after-width" => array(null, "-webkit-border-after-width", null, null), "border-before" => array(null, "-webkit-border-before", null, null), "border-before-color" => array(null, "-webkit-border-before-color", null, null), "border-before-style" => array(null, "-webkit-border-before-style", null, null), "border-before-width" => array(null, "-webkit-border-before-width", null, null), "border-border-bottom-colors" => array("-moz-border-bottom-colors", null, null, null), "border-bottom-left-radius" => array("-moz-border-radius-bottomleft", "-webkit-border-bottom-left-radius", null, null), "border-bottom-right-radius" => array("-moz-border-radius-bottomright", "-webkit-border-bottom-right-radius", null, null), "border-end" => array("-moz-border-end", "-webkit-border-end", null, null), "border-end-color" => array("-moz-border-end-color", "-webkit-border-end-color", null, null), "border-end-style" => array("-moz-border-end-style", "-webkit-border-end-style", null, null), "border-end-width" => array("-moz-border-end-width", "-webkit-border-end-width", null, null), "border-fit" => array(null, "-webkit-border-fit", null, null), "border-horizontal-spacing" => array(null, "-webkit-border-horizontal-spacing", null, null), "border-image" => array("-moz-border-image", "-webkit-border-image", null, null), "border-left-colors" => array("-moz-border-left-colors", null, null, null), "border-radius" => array("-moz-border-radius", "-webkit-border-radius", null, null), "border-border-right-colors" => array("-moz-border-right-colors", null, null, null), "border-start" => array("-moz-border-start", "-webkit-border-start", null, null), "border-start-color" => array("-moz-border-start-color", "-webkit-border-start-color", null, null), "border-start-style" => array("-moz-border-start-style", "-webkit-border-start-style", null, null), "border-start-width" => array("-moz-border-start-width", "-webkit-border-start-width", null, null), "border-top-colors" => array("-moz-border-top-colors", null, null, null), "border-top-left-radius" => array("-moz-border-radius-topleft", "-webkit-border-top-left-radius", null, null), "border-top-right-radius" => array("-moz-border-radius-topright", "-webkit-border-top-right-radius", null, null), "border-vertical-spacing" => array(null, "-webkit-border-vertical-spacing", null, null), "box-align" => array("-moz-box-align", "-webkit-box-align", null, null), "box-direction" => array("-moz-box-direction", "-webkit-box-direction", null, null), "box-flex" => array("-moz-box-flex", "-webkit-box-flex", null, null), "box-flex-group" => array(null, "-webkit-box-flex-group", null, null), "box-flex-lines" => array(null, "-webkit-box-flex-lines", null, null), "box-ordinal-group" => array("-moz-box-ordinal-group", "-webkit-box-ordinal-group", null, null), "box-orient" => array("-moz-box-orient", "-webkit-box-orient", null, null), "box-pack" => array("-moz-box-pack", "-webkit-box-pack", null, null), "box-reflect" => array(null, "-webkit-box-reflect", null, null), "box-shadow" => array("-moz-box-shadow", "-webkit-box-shadow", null, null), "box-sizing" => array("-moz-box-sizing", null, null, null), "color-correction" => array(null, "-webkit-color-correction", null, null), "column-break-after" => array(null, "-webkit-column-break-after", null, null), "column-break-before" => array(null, "-webkit-column-break-before", null, null), "column-break-inside" => array(null, "-webkit-column-break-inside", null, null), "column-count" => array("-moz-column-count", "-webkit-column-count", null, null), "column-gap" => array("-moz-column-gap", "-webkit-column-gap", null, null), "column-rule" => array("-moz-column-rule", "-webkit-column-rule", null, null), "column-rule-color" => array("-moz-column-rule-color", "-webkit-column-rule-color", null, null), "column-rule-style" => array("-moz-column-rule-style", "-webkit-column-rule-style", null, null), "column-rule-width" => array("-moz-column-rule-width", "-webkit-column-rule-width", null, null), "column-span" => array(null, "-webkit-column-span", null, null), "column-width" => array("-moz-column-width", "-webkit-column-width", null, null), "columns" => array(null, "-webkit-columns", null, null), "filter" => array(__CLASS__, "filter"), "float-edge" => array("-moz-float-edge", null, null, null), "font-feature-settings" => array("-moz-font-feature-settings", null, null, null), "font-language-override" => array("-moz-font-language-override", null, null, null), "font-size-delta" => array(null, "-webkit-font-size-delta", null, null), "font-smoothing" => array(null, "-webkit-font-smoothing", null, null), "force-broken-image-icon" => array("-moz-force-broken-image-icon", null, null, null), "highlight" => array(null, "-webkit-highlight", null, null), "hyphenate-character" => array(null, "-webkit-hyphenate-character", null, null), "hyphenate-locale" => array(null, "-webkit-hyphenate-locale", null, null), "hyphens" => array(null, "-webkit-hyphens", null, null), "force-broken-image-icon" => array("-moz-image-region", null, null, null), "ime-mode" => array(null, null, null, "-ms-ime-mode"), "interpolation-mode" => array(null, null, null, "-ms-interpolation-mode"), "layout-flow" => array(null, null, null, "-ms-layout-flow"), "layout-grid" => array(null, null, null, "-ms-layout-grid"), "layout-grid-char" => array(null, null, null, "-ms-layout-grid-char"), "layout-grid-line" => array(null, null, null, "-ms-layout-grid-line"), "layout-grid-mode" => array(null, null, null, "-ms-layout-grid-mode"), "layout-grid-type" => array(null, null, null, "-ms-layout-grid-type"), "line-break" => array(null, "-webkit-line-break", null, "-ms-line-break"), "line-clamp" => array(null, "-webkit-line-clamp", null, null), "line-grid-mode" => array(null, null, null, "-ms-line-grid-mode"), "logical-height" => array(null, "-webkit-logical-height", null, null), "logical-width" => array(null, "-webkit-logical-width", null, null), "margin-after" => array(null, "-webkit-margin-after", null, null), "margin-after-collapse" => array(null, "-webkit-margin-after-collapse", null, null), "margin-before" => array(null, "-webkit-margin-before", null, null), "margin-before-collapse" => array(null, "-webkit-margin-before-collapse", null, null), "margin-bottom-collapse" => array(null, "-webkit-margin-bottom-collapse", null, null), "margin-collapse" => array(null, "-webkit-margin-collapse", null, null), "margin-end" => array("-moz-margin-end", "-webkit-margin-end", null, null), "margin-start" => array("-moz-margin-start", "-webkit-margin-start", null, null), "margin-top-collapse" => array(null, "-webkit-margin-top-collapse", null, null), "marquee " => array(null, "-webkit-marquee", null, null), "marquee-direction" => array(null, "-webkit-marquee-direction", null, null), "marquee-increment" => array(null, "-webkit-marquee-increment", null, null), "marquee-repetition" => array(null, "-webkit-marquee-repetition", null, null), "marquee-speed" => array(null, "-webkit-marquee-speed", null, null), "marquee-style" => array(null, "-webkit-marquee-style", null, null), "mask" => array(null, "-webkit-mask", null, null), "mask-attachment" => array(null, "-webkit-mask-attachment", null, null), "mask-box-image" => array(null, "-webkit-mask-box-image", null, null), "mask-clip" => array(null, "-webkit-mask-clip", null, null), "mask-composite" => array(null, "-webkit-mask-composite", null, null), "mask-image" => array(null, "-webkit-mask-image", null, null), "mask-origin" => array(null, "-webkit-mask-origin", null, null), "mask-position" => array(null, "-webkit-mask-position", null, null), "mask-position-x" => array(null, "-webkit-mask-position-x", null, null), "mask-position-y" => array(null, "-webkit-mask-position-y", null, null), "mask-repeat" => array(null, "-webkit-mask-repeat", null, null), "mask-repeat-x" => array(null, "-webkit-mask-repeat-x", null, null), "mask-repeat-y" => array(null, "-webkit-mask-repeat-y", null, null), "mask-size" => array(null, "-webkit-mask-size", null, null), "match-nearest-mail-blockquote-color" => array(null, "-webkit-match-nearest-mail-blockquote-color", null, null), "max-logical-height" => array(null, "-webkit-max-logical-height", null, null), "max-logical-width" => array(null, "-webkit-max-logical-width", null, null), "min-logical-height" => array(null, "-webkit-min-logical-height", null, null), "min-logical-width" => array(null, "-webkit-min-logical-width", null, null), "object-fit" => array(null, null, "-o-object-fit", null), "object-position" => array(null, null, "-o-object-position", null), "opacity" => array(__CLASS__, "opacity"), "outline-radius" => array("-moz-outline-radius", null, null, null), "outline-bottom-left-radius" => array("-moz-outline-radius-bottomleft", null, null, null), "outline-bottom-right-radius" => array("-moz-outline-radius-bottomright", null, null, null), "outline-top-left-radius" => array("-moz-outline-radius-topleft", null, null, null), "outline-top-right-radius" => array("-moz-outline-radius-topright", null, null, null), "padding-after" => array(null, "-webkit-padding-after", null, null), "padding-before" => array(null, "-webkit-padding-before", null, null), "padding-end" => array("-moz-padding-end", "-webkit-padding-end", null, null), "padding-start" => array("-moz-padding-start", "-webkit-padding-start", null, null), "perspective" => array(null, "-webkit-perspective", null, null), "perspective-origin" => array(null, "-webkit-perspective-origin", null, null), "perspective-origin-x" => array(null, "-webkit-perspective-origin-x", null, null), "perspective-origin-y" => array(null, "-webkit-perspective-origin-y", null, null), "rtl-ordering" => array(null, "-webkit-rtl-ordering", null, null), "scrollbar-3dlight-color" => array(null, null, null, "-ms-scrollbar-3dlight-color"), "scrollbar-arrow-color" => array(null, null, null, "-ms-scrollbar-arrow-color"), "scrollbar-base-color" => array(null, null, null, "-ms-scrollbar-base-color"), "scrollbar-darkshadow-color" => array(null, null, null, "-ms-scrollbar-darkshadow-color"), "scrollbar-face-color" => array(null, null, null, "-ms-scrollbar-face-color"), "scrollbar-highlight-color" => array(null, null, null, "-ms-scrollbar-highlight-color"), "scrollbar-shadow-color" => array(null, null, null, "-ms-scrollbar-shadow-color"), "scrollbar-track-color" => array(null, null, null, "-ms-scrollbar-track-color"), "stack-sizing" => array("-moz-stack-sizing", null, null, null), "svg-shadow" => array(null, "-webkit-svg-shadow", null, null), "tab-size" => array("-moz-tab-size", null, "-o-tab-size", null), "table-baseline" => array(null, null, "-o-table-baseline", null), "text-align-last" => array(null, null, null, "-ms-text-align-last"), "text-autospace" => array(null, null, null, "-ms-text-autospace"), "text-combine" => array(null, "-webkit-text-combine", null, null), "text-decorations-in-effect" => array(null, "-webkit-text-decorations-in-effect", null, null), "text-emphasis" => array(null, "-webkit-text-emphasis", null, null), "text-emphasis-color" => array(null, "-webkit-text-emphasis-color", null, null), "text-emphasis-position" => array(null, "-webkit-text-emphasis-position", null, null), "text-emphasis-style" => array(null, "-webkit-text-emphasis-style", null, null), "text-fill-color" => array(null, "-webkit-text-fill-color", null, null), "text-justify" => array(null, null, null, "-ms-text-justify"), "text-kashida-space" => array(null, null, null, "-ms-text-kashida-space"), "text-overflow" => array(null, null, "-o-text-overflow", "-ms-text-overflow"), "text-security" => array(null, "-webkit-text-security", null, null), "text-size-adjust" => array(null, "-webkit-text-size-adjust", null, "-ms-text-size-adjust"), "text-stroke" => array(null, "-webkit-text-stroke", null, null), "text-stroke-color" => array(null, "-webkit-text-stroke-color", null, null), "text-stroke-width" => array(null, "-webkit-text-stroke-width", null, null), "text-underline-position" => array(null, null, null, "-ms-text-underline-position"), "transform" => array("-moz-transform", "-webkit-transform", "-o-transform", null), "transform-origin" => array("-moz-transform-origin", "-webkit-transform-origin", "-o-transform-origin", null), "transform-origin-x" => array(null, "-webkit-transform-origin-x", null, null), "transform-origin-y" => array(null, "-webkit-transform-origin-y", null, null), "transform-origin-z" => array(null, "-webkit-transform-origin-z", null, null), "transform-style" => array(null, "-webkit-transform-style", null, null), "transition" => array("-moz-transition", "-webkit-transition", "-o-transition", null), "transition-delay" => array("-moz-transition-delay", "-webkit-transition-delay", "-o-transition-delay", null), "transition-duration" => array("-moz-transition-duration", "-webkit-transition-duration", "-o-transition-duration", null), "transition-property" => array("-moz-transition-property", "-webkit-transition-property", "-o-transition-property", null), "transition-timing-function" => array("-moz-transition-timing-function", "-webkit-transition-timing-function", "-o-transition-timing-function", null), "user-drag" => array(null, "-webkit-user-drag", null, null), "user-focus" => array("-moz-user-focus", null, null, null), "user-input" => array("-moz-user-input", null, null, null), "user-modify" => array("-moz-user-modify", "-webkit-user-modify", null, null), "user-select" => array("-moz-user-select", "-webkit-user-select", null, null), "white-space" => array(__CLASS__, "whiteSpace"), "window-shadow" => array("-moz-window-shadow", null, null, null), "word-break" => array(null, null, null, "-ms-word-break"), "word-wrap" => array(null, null, null, "-ms-word-wrap"), "writing-mode" => array(null, "-webkit-writing-mode", null, "-ms-writing-mode"), "zoom" => array(null, null, null, "-ms-zoom") ); public function apply(array &$tokens) { $r = 0; $transformations = &$this->transformations; for ($i = 0, $l = count($tokens); $i < $l; $i++) { if (get_class($tokens[$i]) === "CssRulesetDeclarationToken") { $tProperty = $tokens[$i]->Property; if (isset($transformations[$tProperty])) { $result = array(); if (is_callable($transformations[$tProperty])) { $result = call_user_func_array($transformations[$tProperty], array($tokens[$i])); if (!is_array($result) && is_object($result)) { $result = array($result); } } else { $tValue = $tokens[$i]->Value; $tMediaTypes = $tokens[$i]->MediaTypes; foreach ($transformations[$tProperty] as $property) { if ($property !== null) { $result[] = new CssRulesetDeclarationToken($property, $tValue, $tMediaTypes); } } } if (count($result) > 0) { array_splice($tokens, $i + 1, 0, $result); $i += count($result); $l += count($result); } } } } return $r; } private static function filter($token) { $r = array ( new CssRulesetDeclarationToken("-ms-filter", "\"" . $token->Value . "\"", $token->MediaTypes), ); return $r; } private static function opacity($token) { $ieValue = (int) ((float) $token->Value * 100); $r = array ( new CssRulesetDeclarationToken("-ms-filter", "\"alpha(opacity=" . $ieValue . ")\"", $token->MediaTypes), new CssRulesetDeclarationToken("filter", "alpha(opacity=" . $ieValue . ")", $token->MediaTypes), new CssRulesetDeclarationToken("zoom", "1", $token->MediaTypes) ); return $r; } private static function whiteSpace($token) { if (strtolower($token->Value) === "pre-wrap") { $r = array ( new CssRulesetDeclarationToken("white-space", "-moz-pre-wrap", $token->MediaTypes), new CssRulesetDeclarationToken("white-space", "-webkit-pre-wrap", $token->MediaTypes), new CssRulesetDeclarationToken("white-space", "-pre-wrap", $token->MediaTypes), new CssRulesetDeclarationToken("white-space", "-o-pre-wrap", $token->MediaTypes), new CssRulesetDeclarationToken("word-wrap", "break-word", $token->MediaTypes) ); return $r; } else { return array(); } } } class CssConvertLevel3AtKeyframesMinifierFilter extends aCssMinifierFilter { public function apply(array &$tokens) { $r = 0; $transformations = array("-moz-keyframes", "-webkit-keyframes"); for ($i = 0, $l = count($tokens); $i < $l; $i++) { if (get_class($tokens[$i]) === "CssAtKeyframesStartToken") { for ($ii = $i; $ii < $l; $ii++) { if (get_class($tokens[$ii]) === "CssAtKeyframesEndToken") { break; } } if (get_class($tokens[$ii]) === "CssAtKeyframesEndToken") { $add = array(); $source = array(); for ($iii = $i; $iii <= $ii; $iii++) { $source[] = clone($tokens[$iii]); } foreach ($transformations as $transformation) { $t = array(); foreach ($source as $token) { $t[] = clone($token); } $t[0]->AtRuleName = $transformation; $add = array_merge($add, $t); } if (isset($this->configuration["RemoveSource"]) && $this->configuration["RemoveSource"] === true) { array_splice($tokens, $i, $ii - $i + 1, $add); } else { array_splice($tokens, $ii + 1, 0, $add); } $l = count($tokens); $i = $ii + count($add); $r += count($add); } } } return $r; } } class CssConvertHslColorsMinifierPlugin extends aCssMinifierPlugin { private $reMatch = "/^hsl\s*\(\s*([0-9]+)\s*,\s*([0-9]+)\s*%\s*,\s*([0-9]+)\s*%\s*\)/iS"; public function apply(aCssToken &$token) { if (stripos($token->Value, "hsl") !== false && preg_match($this->reMatch, $token->Value, $m)) { $token->Value = str_replace($m[0], $this->hsl2hex($m[1], $m[2], $m[3]), $token->Value); } return false; } public function getTriggerTokens() { return array ( "CssAtFontFaceDeclarationToken", "CssAtPageDeclarationToken", "CssRulesetDeclarationToken" ); } private function hsl2hex($hue, $saturation, $lightness) { $hue = $hue / 360; $saturation = $saturation / 100; $lightness = $lightness / 100; if ($saturation == 0) { $red = $lightness * 255; $green = $lightness * 255; $blue = $lightness * 255; } else { if ($lightness < 0.5 ) { $v2 = $lightness * (1 + $saturation); } else { $v2 = ($lightness + $saturation) - ($saturation * $lightness); } $v1 = 2 * $lightness - $v2; $red = 255 * self::hue2rgb($v1, $v2, $hue + (1 / 3)); $green = 255 * self::hue2rgb($v1, $v2, $hue); $blue = 255 * self::hue2rgb($v1, $v2, $hue - (1 / 3)); } return "#" . str_pad(dechex(round($red)), 2, "0", STR_PAD_LEFT) . str_pad(dechex(round($green)), 2, "0", STR_PAD_LEFT) . str_pad(dechex(round($blue)), 2, "0", STR_PAD_LEFT); } private function hue2rgb($v1, $v2, $hue) { if ($hue < 0) { $hue += 1; } if ($hue > 1) { $hue -= 1; } if ((6 * $hue) < 1) { return ($v1 + ($v2 - $v1) * 6 * $hue); } if ((2 * $hue) < 1) { return ($v2); } if ((3 * $hue) < 2) { return ($v1 + ($v2 - $v1) * (( 2 / 3) - $hue) * 6); } return $v1; } } class CssConvertFontWeightMinifierPlugin extends aCssMinifierPlugin { private $include = array ( "font", "font-weight" ); private $reMatch = null; private $reReplace = "\"\${1}\" . \$this->transformation[\"\${2}\"] . \"\${3}\""; private $transformation = array ( "normal" => "400", "bold" => "700" ); public function __construct(CssMinifier $minifier) { $this->reMatch = "/(^|\s)+(" . implode("|", array_keys($this->transformation)). ")(\s|$)+/eiS"; parent::__construct($minifier); } public function apply(aCssToken &$token) { if (in_array($token->Property, $this->include) && preg_match($this->reMatch, $token->Value, $m)) { $token->Value = preg_replace($this->reMatch, $this->reReplace, $token->Value); } return false; } public function getTriggerTokens() { return array ( "CssAtFontFaceDeclarationToken", "CssAtPageDeclarationToken", "CssRulesetDeclarationToken" ); } } class CssCompressUnitValuesMinifierPlugin extends aCssMinifierPlugin { private $re = array ( "/(^| |-)0\.([0-9]+?)(0+)?(%|em|ex|px|in|cm|mm|pt|pc)/iS" => "\${1}.\${2}\${4}", "/(^| )-?(\.?)0(%|em|ex|px|in|cm|mm|pt|pc)/iS" => "\${1}0", "/(^0\s0\s0\s0)|(^0\s0\s0$)|(^0\s0$)/iS" => "0" ); private $reMatch = "/(^| |-)0\.([0-9]+?)(0+)?(%|em|ex|px|in|cm|mm|pt|pc)|(^| )-?(\.?)0(%|em|ex|px|in|cm|mm|pt|pc)|(^0\s0\s0\s0$)|(^0\s0\s0$)|(^0\s0$)/iS"; public function apply(aCssToken &$token) { if (preg_match($this->reMatch, $token->Value)) { foreach ($this->re as $reMatch => $reReplace) { $token->Value = preg_replace($reMatch, $reReplace, $token->Value); } } return false; } public function getTriggerTokens() { return array ( "CssAtFontFaceDeclarationToken", "CssAtPageDeclarationToken", "CssRulesetDeclarationToken" ); } } class CssCompressExpressionValuesMinifierPlugin extends aCssMinifierPlugin { public function apply(aCssToken &$token) { if (class_exists("JSMin") && stripos($token->Value, "expression(") !== false) { $value = $token->Value; $value = substr($token->Value, stripos($token->Value, "expression(") + 10); $value = trim(JSMin::minify($value)); $token->Value = "expression(" . $value . ")"; } return false; } public function getTriggerTokens() { return array ( "CssAtFontFaceDeclarationToken", "CssAtPageDeclarationToken", "CssRulesetDeclarationToken" ); } } class CssCompressColorValuesMinifierPlugin extends aCssMinifierPlugin { private $reMatch = "/\#([0-9a-f]{6})/iS"; public function apply(aCssToken &$token) { if (strpos($token->Value, "#") !== false && preg_match($this->reMatch, $token->Value, $m)) { $value = strtolower($m[1]); if ($value[0] == $value[1] && $value[2] == $value[3] && $value[4] == $value[5]) { $token->Value = str_replace($m[0], "#" . $value[0] . $value[2] . $value[4], $token->Value); } } return false; } public function getTriggerTokens() { return array ( "CssAtFontFaceDeclarationToken", "CssAtPageDeclarationToken", "CssRulesetDeclarationToken" ); } } class CssCommentToken extends aCssToken { public $Comment = ""; public function __construct($comment) { $this->Comment = $comment; } public function __toString() { return $this->Comment; } } class CssCommentParserPlugin extends aCssParserPlugin { public function getTriggerChars() { return array("*", "/"); } public function getTriggerStates() { return false; } private $restoreBuffer = ""; public function parse($index, $char, $previousChar, $state) { if ($char === "*" && $previousChar === "/" && $state !== "T_COMMENT") { $this->parser->pushState("T_COMMENT"); $this->parser->setExclusive(__CLASS__); $this->restoreBuffer = substr($this->parser->getAndClearBuffer(), 0, -2); } elseif ($char === "/" && $previousChar === "*" && $state === "T_COMMENT") { $this->parser->popState(); $this->parser->unsetExclusive(); $this->parser->appendToken(new CssCommentToken("/*" . $this->parser->getAndClearBuffer())); $this->parser->setBuffer($this->restoreBuffer); } else { return false; } return true; } } class CssAtVariablesStartToken extends aCssAtBlockStartToken { public $MediaTypes = array(); public function __construct($mediaTypes = null) { $this->MediaTypes = $mediaTypes ? $mediaTypes : array("all"); } public function __toString() { return ""; } } class CssAtVariablesParserPlugin extends aCssParserPlugin { public function getTriggerChars() { return array("@", "{", "}", ":", ";"); } public function getTriggerStates() { return array("T_DOCUMENT", "T_AT_VARIABLES::PREPARE", "T_AT_VARIABLES", "T_AT_VARIABLES_DECLARATION"); } public function parse($index, $char, $previousChar, $state) { if ($char === "@" && $state === "T_DOCUMENT" && strtolower(substr($this->parser->getSource(), $index, 10)) === "@variables") { $this->parser->pushState("T_AT_VARIABLES::PREPARE"); $this->parser->clearBuffer(); return $index + 10; } elseif ($char === "{" && $state === "T_AT_VARIABLES::PREPARE") { $this->parser->setState("T_AT_VARIABLES"); $mediaTypes = array_filter(array_map("trim", explode(",", $this->parser->getAndClearBuffer("{")))); $this->parser->appendToken(new CssAtVariablesStartToken($mediaTypes)); } if ($char === ":" && $state === "T_AT_VARIABLES") { $this->buffer = $this->parser->getAndClearBuffer(":"); $this->parser->pushState("T_AT_VARIABLES_DECLARATION"); } elseif ($char === ":" && $state === "T_AT_VARIABLES_DECLARATION") { if ($this->buffer === "filter") { return false; } CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Unterminated @variables declaration", $this->buffer . ":" . $this->parser->getBuffer() . "_")); } elseif (($char === ";" || $char === "}") && $state === "T_AT_VARIABLES_DECLARATION") { $value = $this->parser->getAndClearBuffer(";}"); if (strtolower(substr($value, -10, 10)) === "!important") { $value = trim(substr($value, 0, -10)); $isImportant = true; } else { $isImportant = false; } $this->parser->popState(); $this->parser->appendToken(new CssAtVariablesDeclarationToken($this->buffer, $value, $isImportant)); $this->buffer = ""; } elseif ($char === "}" && $state === "T_AT_VARIABLES") { $this->parser->popState(); $this->parser->clearBuffer(); $this->parser->appendToken(new CssAtVariablesEndToken()); } else { return false; } return true; } } class CssAtVariablesEndToken extends aCssAtBlockEndToken { public function __toString() { return ""; } } class CssAtVariablesDeclarationToken extends aCssDeclarationToken { public function __toString() { return ""; } } class CssAtPageStartToken extends aCssAtBlockStartToken { public $Selector = ""; public function __construct($selector = "") { $this->Selector = $selector; } public function __toString() { return "@page" . ($this->Selector ? " " . $this->Selector : "") . "{"; } } class CssAtPageParserPlugin extends aCssParserPlugin { public function getTriggerChars() { return array("@", "{", "}", ":", ";"); } public function getTriggerStates() { return array("T_DOCUMENT", "T_AT_PAGE::SELECTOR", "T_AT_PAGE", "T_AT_PAGE_DECLARATION"); } public function parse($index, $char, $previousChar, $state) { if ($char === "@" && $state === "T_DOCUMENT" && strtolower(substr($this->parser->getSource(), $index, 5)) === "@page") { $this->parser->pushState("T_AT_PAGE::SELECTOR"); $this->parser->clearBuffer(); return $index + 5; } elseif ($char === "{" && $state === "T_AT_PAGE::SELECTOR") { $selector = $this->parser->getAndClearBuffer("{"); $this->parser->setState("T_AT_PAGE"); $this->parser->clearBuffer(); $this->parser->appendToken(new CssAtPageStartToken($selector)); } elseif ($char === ":" && $state === "T_AT_PAGE") { $this->parser->pushState("T_AT_PAGE_DECLARATION"); $this->buffer = $this->parser->getAndClearBuffer(":", true); } elseif ($char === ":" && $state === "T_AT_PAGE_DECLARATION") { if ($this->buffer === "filter") { return false; } CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Unterminated @page declaration", $this->buffer . ":" . $this->parser->getBuffer() . "_")); } elseif (($char === ";" || $char === "}") && $state == "T_AT_PAGE_DECLARATION") { $value = $this->parser->getAndClearBuffer(";}"); if (strtolower(substr($value, -10, 10)) == "!important") { $value = trim(substr($value, 0, -10)); $isImportant = true; } else { $isImportant = false; } $this->parser->popState(); $this->parser->appendToken(new CssAtPageDeclarationToken($this->buffer, $value, $isImportant)); if ($char === "}") { $this->parser->popState(); $this->parser->appendToken(new CssAtPageEndToken()); } $this->buffer = ""; } elseif ($char === "}" && $state === "T_AT_PAGE") { $this->parser->popState(); $this->parser->clearBuffer(); $this->parser->appendToken(new CssAtPageEndToken()); } else { return false; } return true; } } class CssAtPageEndToken extends aCssAtBlockEndToken { } class CssAtPageDeclarationToken extends aCssDeclarationToken { } class CssAtMediaStartToken extends aCssAtBlockStartToken { public function __construct(array $mediaTypes = array()) { $this->MediaTypes = $mediaTypes; } public function __toString() { return "@media " . implode(",", $this->MediaTypes) . "{"; } } class CssAtMediaParserPlugin extends aCssParserPlugin { public function getTriggerChars() { return array("@", "{", "}"); } public function getTriggerStates() { return array("T_DOCUMENT", "T_AT_MEDIA::PREPARE", "T_AT_MEDIA"); } public function parse($index, $char, $previousChar, $state) { if ($char === "@" && $state === "T_DOCUMENT" && strtolower(substr($this->parser->getSource(), $index, 6)) === "@media") { $this->parser->pushState("T_AT_MEDIA::PREPARE"); $this->parser->clearBuffer(); return $index + 6; } elseif ($char === "{" && $state === "T_AT_MEDIA::PREPARE") { $mediaTypes = array_filter(array_map("trim", explode(",", $this->parser->getAndClearBuffer("{")))); $this->parser->setMediaTypes($mediaTypes); $this->parser->setState("T_AT_MEDIA"); $this->parser->appendToken(new CssAtMediaStartToken($mediaTypes)); } elseif ($char === "}" && $state === "T_AT_MEDIA") { $this->parser->appendToken(new CssAtMediaEndToken()); $this->parser->clearBuffer(); $this->parser->unsetMediaTypes(); $this->parser->popState(); } else { return false; } return true; } } class CssAtMediaEndToken extends aCssAtBlockEndToken { } class CssAtKeyframesStartToken extends aCssAtBlockStartToken { public $AtRuleName = "keyframes"; public $Name = ""; public function __construct($name, $atRuleName = null) { $this->Name = $name; if (!is_null($atRuleName)) { $this->AtRuleName = $atRuleName; } } public function __toString() { return "@" . $this->AtRuleName . " \"" . $this->Name . "\"{"; } } class CssAtKeyframesRulesetStartToken extends aCssRulesetStartToken { public $Selectors = array(); public function __construct(array $selectors = array()) { $this->Selectors = $selectors; } public function __toString() { return implode(",", $this->Selectors) . "{"; } } class CssAtKeyframesRulesetEndToken extends aCssRulesetEndToken { } class CssAtKeyframesRulesetDeclarationToken extends aCssDeclarationToken { } class CssAtKeyframesParserPlugin extends aCssParserPlugin { private $atRuleName = ""; private $selectors = array(); public function getTriggerChars() { return array("@", "{", "}", ":", ",", ";"); } public function getTriggerStates() { return array("T_DOCUMENT", "T_AT_KEYFRAMES::NAME", "T_AT_KEYFRAMES", "T_AT_KEYFRAMES_RULESETS", "T_AT_KEYFRAMES_RULESET", "T_AT_KEYFRAMES_RULESET_DECLARATION"); } public function parse($index, $char, $previousChar, $state) { if ($char === "@" && $state === "T_DOCUMENT" && strtolower(substr($this->parser->getSource(), $index, 10)) === "@keyframes") { $this->atRuleName = "keyframes"; $this->parser->pushState("T_AT_KEYFRAMES::NAME"); $this->parser->clearBuffer(); return $index + 10; } elseif ($char === "@" && $state === "T_DOCUMENT" && strtolower(substr($this->parser->getSource(), $index, 15)) === "@-moz-keyframes") { $this->atRuleName = "-moz-keyframes"; $this->parser->pushState("T_AT_KEYFRAMES::NAME"); $this->parser->clearBuffer(); return $index + 15; } elseif ($char === "@" && $state === "T_DOCUMENT" && strtolower(substr($this->parser->getSource(), $index, 18)) === "@-webkit-keyframes") { $this->atRuleName = "-webkit-keyframes"; $this->parser->pushState("T_AT_KEYFRAMES::NAME"); $this->parser->clearBuffer(); return $index + 18; } elseif ($char === "{" && $state === "T_AT_KEYFRAMES::NAME") { $name = $this->parser->getAndClearBuffer("{\"'"); $this->parser->setState("T_AT_KEYFRAMES_RULESETS"); $this->parser->clearBuffer(); $this->parser->appendToken(new CssAtKeyframesStartToken($name, $this->atRuleName)); } if ($char === "," && $state === "T_AT_KEYFRAMES_RULESETS") { $this->selectors[] = $this->parser->getAndClearBuffer(",{"); } elseif ($char === "{" && $state === "T_AT_KEYFRAMES_RULESETS") { if ($this->parser->getBuffer() !== "") { $this->selectors[] = $this->parser->getAndClearBuffer(",{"); $this->parser->pushState("T_AT_KEYFRAMES_RULESET"); $this->parser->appendToken(new CssAtKeyframesRulesetStartToken($this->selectors)); $this->selectors = array(); } } elseif ($char === ":" && $state === "T_AT_KEYFRAMES_RULESET") { $this->parser->pushState("T_AT_KEYFRAMES_RULESET_DECLARATION"); $this->buffer = $this->parser->getAndClearBuffer(":;", true); } elseif ($char === ":" && $state === "T_AT_KEYFRAMES_RULESET_DECLARATION") { if ($this->buffer === "filter") { return false; } CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Unterminated @keyframes ruleset declaration", $this->buffer . ":" . $this->parser->getBuffer() . "_")); } elseif (($char === ";" || $char === "}") && $state === "T_AT_KEYFRAMES_RULESET_DECLARATION") { $value = $this->parser->getAndClearBuffer(";}"); if (strtolower(substr($value, -10, 10)) === "!important") { $value = trim(substr($value, 0, -10)); $isImportant = true; } else { $isImportant = false; } $this->parser->popState(); $this->parser->appendToken(new CssAtKeyframesRulesetDeclarationToken($this->buffer, $value, $isImportant)); if ($char === "}") { $this->parser->appendToken(new CssAtKeyframesRulesetEndToken()); $this->parser->popState(); } $this->buffer = ""; } elseif ($char === "}" && $state === "T_AT_KEYFRAMES_RULESET") { $this->parser->clearBuffer(); $this->parser->popState(); $this->parser->appendToken(new CssAtKeyframesRulesetEndToken()); } elseif ($char === "}" && $state === "T_AT_KEYFRAMES_RULESETS") { $this->parser->clearBuffer(); $this->parser->popState(); $this->parser->appendToken(new CssAtKeyframesEndToken()); } else { return false; } return true; } } class CssAtKeyframesEndToken extends aCssAtBlockEndToken { } class CssAtImportToken extends aCssToken { public $Import = ""; public $MediaTypes = array(); public function __construct($import, $mediaTypes) { $this->Import = $import; $this->MediaTypes = $mediaTypes ? $mediaTypes : array(); } public function __toString() { return "@import \"" . $this->Import . "\"" . (count($this->MediaTypes) > 0 ? " " . implode(",", $this->MediaTypes) : ""). ";"; } } class CssAtImportParserPlugin extends aCssParserPlugin { public function getTriggerChars() { return array("@", ";", ",", "\n"); } public function getTriggerStates() { return array("T_DOCUMENT", "T_AT_IMPORT"); } public function parse($index, $char, $previousChar, $state) { if ($char === "@" && $state === "T_DOCUMENT" && strtolower(substr($this->parser->getSource(), $index, 7)) === "@import") { $this->parser->pushState("T_AT_IMPORT"); $this->parser->clearBuffer(); return $index + 7; } elseif (($char === ";" || $char === "\n") && $state === "T_AT_IMPORT") { $this->buffer = $this->parser->getAndClearBuffer(";"); $pos = false; foreach (array(")", "\"", "'") as $needle) { if (($pos = strrpos($this->buffer, $needle)) !== false) { break; } } $import = substr($this->buffer, 0, $pos + 1); if (stripos($import, "url(") === 0) { $import = substr($import, 4, -1); } $import = trim($import, " \t\n\r\0\x0B'\""); $mediaTypes = array_filter(array_map("trim", explode(",", trim(substr($this->buffer, $pos + 1), " \t\n\r\0\x0B{")))); if ($pos) { $this->parser->appendToken(new CssAtImportToken($import, $mediaTypes)); } else { CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Invalid @import at-rule syntax", $this->parser->buffer)); } $this->parser->popState(); } else { return false; } return true; } } class CssAtFontFaceStartToken extends aCssAtBlockStartToken { public function __toString() { return "@font-face{"; } } class CssAtFontFaceParserPlugin extends aCssParserPlugin { public function getTriggerChars() { return array("@", "{", "}", ":", ";"); } public function getTriggerStates() { return array("T_DOCUMENT", "T_AT_FONT_FACE::PREPARE", "T_AT_FONT_FACE", "T_AT_FONT_FACE_DECLARATION"); } public function parse($index, $char, $previousChar, $state) { if ($char === "@" && $state === "T_DOCUMENT" && strtolower(substr($this->parser->getSource(), $index, 10)) === "@font-face") { $this->parser->pushState("T_AT_FONT_FACE::PREPARE"); $this->parser->clearBuffer(); return $index + 10; } elseif ($char === "{" && $state === "T_AT_FONT_FACE::PREPARE") { $this->parser->setState("T_AT_FONT_FACE"); $this->parser->clearBuffer(); $this->parser->appendToken(new CssAtFontFaceStartToken()); } elseif ($char === ":" && $state === "T_AT_FONT_FACE") { $this->parser->pushState("T_AT_FONT_FACE_DECLARATION"); $this->buffer = $this->parser->getAndClearBuffer(":", true); } elseif ($char === ":" && $state === "T_AT_FONT_FACE_DECLARATION") { if ($this->buffer === "filter") { return false; } CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Unterminated @font-face declaration", $this->buffer . ":" . $this->parser->getBuffer() . "_")); } elseif (($char === ";" || $char === "}") && $state === "T_AT_FONT_FACE_DECLARATION") { $value = $this->parser->getAndClearBuffer(";}"); if (strtolower(substr($value, -10, 10)) === "!important") { $value = trim(substr($value, 0, -10)); $isImportant = true; } else { $isImportant = false; } $this->parser->popState(); $this->parser->appendToken(new CssAtFontFaceDeclarationToken($this->buffer, $value, $isImportant)); $this->buffer = ""; if ($char === "}") { $this->parser->appendToken(new CssAtFontFaceEndToken()); $this->parser->popState(); } } elseif ($char === "}" && $state === "T_AT_FONT_FACE") { $this->parser->appendToken(new CssAtFontFaceEndToken()); $this->parser->clearBuffer(); $this->parser->popState(); } else { return false; } return true; } } class CssAtFontFaceEndToken extends aCssAtBlockEndToken { } class CssAtFontFaceDeclarationToken extends aCssDeclarationToken { } class CssAtCharsetToken extends aCssToken { public $Charset = ""; public function __construct($charset) { $this->Charset = $charset; } public function __toString() { return "@charset " . $this->Charset . ";"; } } class CssAtCharsetParserPlugin extends aCssParserPlugin { public function getTriggerChars() { return array("@", ";", "\n"); } public function getTriggerStates() { return array("T_DOCUMENT", "T_AT_CHARSET"); } public function parse($index, $char, $previousChar, $state) { if ($char === "@" && $state === "T_DOCUMENT" && strtolower(substr($this->parser->getSource(), $index, 8)) === "@charset") { $this->parser->pushState("T_AT_CHARSET"); $this->parser->clearBuffer(); return $index + 8; } elseif (($char === ";" || $char === "\n") && $state === "T_AT_CHARSET") { $charset = $this->parser->getAndClearBuffer(";"); $this->parser->popState(); $this->parser->appendToken(new CssAtCharsetToken($charset)); } else { return false; } return true; } }

 // Simple minification WITHOUT filter or plugin configuration
//$result = CssMin::minify(file_get_contents("path/to/source.css"));

// Minification WITH filter or plugin configuration
//$filters = array(...);
//$plugins = array(...);
// Minify via CssMin adapter function
//$result = CssMin::minify(file_get_contents("path/to/source.css"), $filters, $plugins);
// Minify via CssMinifier class
//$minifier = new CssMinifier(file_get_contents("path/to/source.css"), $filters, $plugins);
//$result = $minifier->getMinified();