diff options
Diffstat (limited to 'assets/php/vendor/matthiasmullie/minify/src')
7 files changed, 0 insertions, 1873 deletions
diff --git a/assets/php/vendor/matthiasmullie/minify/src/CSS.php b/assets/php/vendor/matthiasmullie/minify/src/CSS.php deleted file mode 100755 index 742f043..0000000 --- a/assets/php/vendor/matthiasmullie/minify/src/CSS.php +++ /dev/null @@ -1,736 +0,0 @@ -<?php -/** - * CSS Minifier - * - * Please report bugs on https://github.com/matthiasmullie/minify/issues - * - * @author Matthias Mullie <minify@mullie.eu> - * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved - * @license MIT License - */ - -namespace MatthiasMullie\Minify; - -use MatthiasMullie\Minify\Exceptions\FileImportException; -use MatthiasMullie\PathConverter\ConverterInterface; -use MatthiasMullie\PathConverter\Converter; - -/** - * CSS minifier - * - * Please report bugs on https://github.com/matthiasmullie/minify/issues - * - * @package Minify - * @author Matthias Mullie <minify@mullie.eu> - * @author Tijs Verkoyen <minify@verkoyen.eu> - * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved - * @license MIT License - */ -class CSS extends Minify -{ - /** - * @var int maximum inport size in kB - */ - protected $maxImportSize = 5; - - /** - * @var string[] valid import extensions - */ - protected $importExtensions = array( - 'gif' => 'data:image/gif', - 'png' => 'data:image/png', - 'jpe' => 'data:image/jpeg', - 'jpg' => 'data:image/jpeg', - 'jpeg' => 'data:image/jpeg', - 'svg' => 'data:image/svg+xml', - 'woff' => 'data:application/x-font-woff', - 'tif' => 'image/tiff', - 'tiff' => 'image/tiff', - 'xbm' => 'image/x-xbitmap', - ); - - /** - * Set the maximum size if files to be imported. - * - * Files larger than this size (in kB) will not be imported into the CSS. - * Importing files into the CSS as data-uri will save you some connections, - * but we should only import relatively small decorative images so that our - * CSS file doesn't get too bulky. - * - * @param int $size Size in kB - */ - public function setMaxImportSize($size) - { - $this->maxImportSize = $size; - } - - /** - * Set the type of extensions to be imported into the CSS (to save network - * connections). - * Keys of the array should be the file extensions & respective values - * should be the data type. - * - * @param string[] $extensions Array of file extensions - */ - public function setImportExtensions(array $extensions) - { - $this->importExtensions = $extensions; - } - - /** - * Move any import statements to the top. - * - * @param string $content Nearly finished CSS content - * - * @return string - */ - protected function moveImportsToTop($content) - { - if (preg_match_all('/(;?)(@import (?<url>url\()?(?P<quotes>["\']?).+?(?P=quotes)(?(url)\)))/', $content, $matches)) { - // remove from content - foreach ($matches[0] as $import) { - $content = str_replace($import, '', $content); - } - - // add to top - $content = implode(';', $matches[2]).';'.trim($content, ';'); - } - - return $content; - } - - /** - * Combine CSS from import statements. - * - * @import's will be loaded and their content merged into the original file, - * to save HTTP requests. - * - * @param string $source The file to combine imports for - * @param string $content The CSS content to combine imports for - * @param string[] $parents Parent paths, for circular reference checks - * - * @return string - * - * @throws FileImportException - */ - protected function combineImports($source, $content, $parents) - { - $importRegexes = array( - // @import url(xxx) - '/ - # import statement - @import - - # whitespace - \s+ - - # open url() - url\( - - # (optional) open path enclosure - (?P<quotes>["\']?) - - # fetch path - (?P<path>.+?) - - # (optional) close path enclosure - (?P=quotes) - - # close url() - \) - - # (optional) trailing whitespace - \s* - - # (optional) media statement(s) - (?P<media>[^;]*) - - # (optional) trailing whitespace - \s* - - # (optional) closing semi-colon - ;? - - /ix', - - // @import 'xxx' - '/ - - # import statement - @import - - # whitespace - \s+ - - # open path enclosure - (?P<quotes>["\']) - - # fetch path - (?P<path>.+?) - - # close path enclosure - (?P=quotes) - - # (optional) trailing whitespace - \s* - - # (optional) media statement(s) - (?P<media>[^;]*) - - # (optional) trailing whitespace - \s* - - # (optional) closing semi-colon - ;? - - /ix', - ); - - // find all relative imports in css - $matches = array(); - foreach ($importRegexes as $importRegex) { - if (preg_match_all($importRegex, $content, $regexMatches, PREG_SET_ORDER)) { - $matches = array_merge($matches, $regexMatches); - } - } - - $search = array(); - $replace = array(); - - // loop the matches - foreach ($matches as $match) { - // get the path for the file that will be imported - $importPath = dirname($source).'/'.$match['path']; - - // only replace the import with the content if we can grab the - // content of the file - if (!$this->canImportByPath($match['path']) || !$this->canImportFile($importPath)) { - continue; - } - - // check if current file was not imported previously in the same - // import chain. - if (in_array($importPath, $parents)) { - throw new FileImportException('Failed to import file "'.$importPath.'": circular reference detected.'); - } - - // grab referenced file & minify it (which may include importing - // yet other @import statements recursively) - $minifier = new static($importPath); - $importContent = $minifier->execute($source, $parents); - - // check if this is only valid for certain media - if (!empty($match['media'])) { - $importContent = '@media '.$match['media'].'{'.$importContent.'}'; - } - - // add to replacement array - $search[] = $match[0]; - $replace[] = $importContent; - } - - // replace the import statements - return str_replace($search, $replace, $content); - } - - /** - * Import files into the CSS, base64-ized. - * - * @url(image.jpg) images will be loaded and their content merged into the - * original file, to save HTTP requests. - * - * @param string $source The file to import files for - * @param string $content The CSS content to import files for - * - * @return string - */ - protected function importFiles($source, $content) - { - $regex = '/url\((["\']?)(.+?)\\1\)/i'; - if ($this->importExtensions && preg_match_all($regex, $content, $matches, PREG_SET_ORDER)) { - $search = array(); - $replace = array(); - - // loop the matches - foreach ($matches as $match) { - $extension = substr(strrchr($match[2], '.'), 1); - if ($extension && !array_key_exists($extension, $this->importExtensions)) { - continue; - } - - // get the path for the file that will be imported - $path = $match[2]; - $path = dirname($source).'/'.$path; - - // only replace the import with the content if we're able to get - // the content of the file, and it's relatively small - if ($this->canImportFile($path) && $this->canImportBySize($path)) { - // grab content && base64-ize - $importContent = $this->load($path); - $importContent = base64_encode($importContent); - - // build replacement - $search[] = $match[0]; - $replace[] = 'url('.$this->importExtensions[$extension].';base64,'.$importContent.')'; - } - } - - // replace the import statements - $content = str_replace($search, $replace, $content); - } - - return $content; - } - - /** - * Minify the data. - * Perform CSS optimizations. - * - * @param string[optional] $path Path to write the data to - * @param string[] $parents Parent paths, for circular reference checks - * - * @return string The minified data - */ - public function execute($path = null, $parents = array()) - { - $content = ''; - - // loop CSS data (raw data and files) - foreach ($this->data as $source => $css) { - /* - * Let's first take out strings & comments, since we can't just - * remove whitespace anywhere. If whitespace occurs inside a string, - * we should leave it alone. E.g.: - * p { content: "a test" } - */ - $this->extractStrings(); - $this->stripComments(); - $css = $this->replace($css); - - $css = $this->stripWhitespace($css); - $css = $this->shortenHex($css); - $css = $this->shortenZeroes($css); - $css = $this->shortenFontWeights($css); - $css = $this->stripEmptyTags($css); - - // restore the string we've extracted earlier - $css = $this->restoreExtractedData($css); - - $source = is_int($source) ? '' : $source; - $parents = $source ? array_merge($parents, array($source)) : $parents; - $css = $this->combineImports($source, $css, $parents); - $css = $this->importFiles($source, $css); - - /* - * If we'll save to a new path, we'll have to fix the relative paths - * to be relative no longer to the source file, but to the new path. - * If we don't write to a file, fall back to same path so no - * conversion happens (because we still want it to go through most - * of the move code, which also addresses url() & @import syntax...) - */ - $converter = $this->getPathConverter($source, $path ?: $source); - $css = $this->move($converter, $css); - - // combine css - $content .= $css; - } - - $content = $this->moveImportsToTop($content); - - return $content; - } - - /** - * Moving a css file should update all relative urls. - * Relative references (e.g. ../images/image.gif) in a certain css file, - * will have to be updated when a file is being saved at another location - * (e.g. ../../images/image.gif, if the new CSS file is 1 folder deeper). - * - * @param ConverterInterface $converter Relative path converter - * @param string $content The CSS content to update relative urls for - * - * @return string - */ - protected function move(ConverterInterface $converter, $content) - { - /* - * Relative path references will usually be enclosed by url(). @import - * is an exception, where url() is not necessary around the path (but is - * allowed). - * This *could* be 1 regular expression, where both regular expressions - * in this array are on different sides of a |. But we're using named - * patterns in both regexes, the same name on both regexes. This is only - * possible with a (?J) modifier, but that only works after a fairly - * recent PCRE version. That's why I'm doing 2 separate regular - * expressions & combining the matches after executing of both. - */ - $relativeRegexes = array( - // url(xxx) - '/ - # open url() - url\( - - \s* - - # open path enclosure - (?P<quotes>["\'])? - - # fetch path - (?P<path>.+?) - - # close path enclosure - (?(quotes)(?P=quotes)) - - \s* - - # close url() - \) - - /ix', - - // @import "xxx" - '/ - # import statement - @import - - # whitespace - \s+ - - # we don\'t have to check for @import url(), because the - # condition above will already catch these - - # open path enclosure - (?P<quotes>["\']) - - # fetch path - (?P<path>.+?) - - # close path enclosure - (?P=quotes) - - /ix', - ); - - // find all relative urls in css - $matches = array(); - foreach ($relativeRegexes as $relativeRegex) { - if (preg_match_all($relativeRegex, $content, $regexMatches, PREG_SET_ORDER)) { - $matches = array_merge($matches, $regexMatches); - } - } - - $search = array(); - $replace = array(); - - // loop all urls - foreach ($matches as $match) { - // determine if it's a url() or an @import match - $type = (strpos($match[0], '@import') === 0 ? 'import' : 'url'); - - $url = $match['path']; - if ($this->canImportByPath($url)) { - // attempting to interpret GET-params makes no sense, so let's discard them for awhile - $params = strrchr($url, '?'); - $url = $params ? substr($url, 0, -strlen($params)) : $url; - - // fix relative url - $url = $converter->convert($url); - - // now that the path has been converted, re-apply GET-params - $url .= $params; - } - - /* - * Urls with control characters above 0x7e should be quoted. - * According to Mozilla's parser, whitespace is only allowed at the - * end of unquoted urls. - * Urls with `)` (as could happen with data: uris) should also be - * quoted to avoid being confused for the url() closing parentheses. - * And urls with a # have also been reported to cause issues. - * Urls with quotes inside should also remain escaped. - * - * @see https://developer.mozilla.org/nl/docs/Web/CSS/url#The_url()_functional_notation - * @see https://hg.mozilla.org/mozilla-central/rev/14abca4e7378 - * @see https://github.com/matthiasmullie/minify/issues/193 - */ - $url = trim($url); - if (preg_match('/[\s\)\'"#\x{7f}-\x{9f}]/u', $url)) { - $url = $match['quotes'] . $url . $match['quotes']; - } - - // build replacement - $search[] = $match[0]; - if ($type === 'url') { - $replace[] = 'url('.$url.')'; - } elseif ($type === 'import') { - $replace[] = '@import "'.$url.'"'; - } - } - - // replace urls - return str_replace($search, $replace, $content); - } - - /** - * Shorthand hex color codes. - * #FF0000 -> #F00. - * - * @param string $content The CSS content to shorten the hex color codes for - * - * @return string - */ - protected function shortenHex($content) - { - $content = preg_replace('/(?<=[: ])#([0-9a-z])\\1([0-9a-z])\\2([0-9a-z])\\3(?=[; }])/i', '#$1$2$3', $content); - - // we can shorten some even more by replacing them with their color name - $colors = array( - '#F0FFFF' => 'azure', - '#F5F5DC' => 'beige', - '#A52A2A' => 'brown', - '#FF7F50' => 'coral', - '#FFD700' => 'gold', - '#808080' => 'gray', - '#008000' => 'green', - '#4B0082' => 'indigo', - '#FFFFF0' => 'ivory', - '#F0E68C' => 'khaki', - '#FAF0E6' => 'linen', - '#800000' => 'maroon', - '#000080' => 'navy', - '#808000' => 'olive', - '#CD853F' => 'peru', - '#FFC0CB' => 'pink', - '#DDA0DD' => 'plum', - '#800080' => 'purple', - '#F00' => 'red', - '#FA8072' => 'salmon', - '#A0522D' => 'sienna', - '#C0C0C0' => 'silver', - '#FFFAFA' => 'snow', - '#D2B48C' => 'tan', - '#FF6347' => 'tomato', - '#EE82EE' => 'violet', - '#F5DEB3' => 'wheat', - ); - - return preg_replace_callback( - '/(?<=[: ])('.implode(array_keys($colors), '|').')(?=[; }])/i', - function ($match) use ($colors) { - return $colors[strtoupper($match[0])]; - }, - $content - ); - } - - /** - * Shorten CSS font weights. - * - * @param string $content The CSS content to shorten the font weights for - * - * @return string - */ - protected function shortenFontWeights($content) - { - $weights = array( - 'normal' => 400, - 'bold' => 700, - ); - - $callback = function ($match) use ($weights) { - return $match[1].$weights[$match[2]]; - }; - - return preg_replace_callback('/(font-weight\s*:\s*)('.implode('|', array_keys($weights)).')(?=[;}])/', $callback, $content); - } - - /** - * Shorthand 0 values to plain 0, instead of e.g. -0em. - * - * @param string $content The CSS content to shorten the zero values for - * - * @return string - */ - protected function shortenZeroes($content) - { - // we don't want to strip units in `calc()` expressions: - // `5px - 0px` is valid, but `5px - 0` is not - // `10px * 0` is valid (equates to 0), and so is `10 * 0px`, but - // `10 * 0` is invalid - // best to just leave `calc()`s alone, even if they could be optimized - // (which is a whole other undertaking, where units & order of - // operations all need to be considered...) - $calcs = $this->findCalcs($content); - $content = str_replace($calcs, array_keys($calcs), $content); - - // reusable bits of code throughout these regexes: - // before & after are used to make sure we don't match lose unintended - // 0-like values (e.g. in #000, or in http://url/1.0) - // units can be stripped from 0 values, or used to recognize non 0 - // values (where wa may be able to strip a .0 suffix) - $before = '(?<=[:(, ])'; - $after = '(?=[ ,);}])'; - $units = '(em|ex|%|px|cm|mm|in|pt|pc|ch|rem|vh|vw|vmin|vmax|vm)'; - - // strip units after zeroes (0px -> 0) - // NOTE: it should be safe to remove all units for a 0 value, but in - // practice, Webkit (especially Safari) seems to stumble over at least - // 0%, potentially other units as well. Only stripping 'px' for now. - // @see https://github.com/matthiasmullie/minify/issues/60 - $content = preg_replace('/'.$before.'(-?0*(\.0+)?)(?<=0)px'.$after.'/', '\\1', $content); - - // strip 0-digits (.0 -> 0) - $content = preg_replace('/'.$before.'\.0+'.$units.'?'.$after.'/', '0\\1', $content); - // strip trailing 0: 50.10 -> 50.1, 50.10px -> 50.1px - $content = preg_replace('/'.$before.'(-?[0-9]+\.[0-9]+)0+'.$units.'?'.$after.'/', '\\1\\2', $content); - // strip trailing 0: 50.00 -> 50, 50.00px -> 50px - $content = preg_replace('/'.$before.'(-?[0-9]+)\.0+'.$units.'?'.$after.'/', '\\1\\2', $content); - // strip leading 0: 0.1 -> .1, 01.1 -> 1.1 - $content = preg_replace('/'.$before.'(-?)0+([0-9]*\.[0-9]+)'.$units.'?'.$after.'/', '\\1\\2\\3', $content); - - // strip negative zeroes (-0 -> 0) & truncate zeroes (00 -> 0) - $content = preg_replace('/'.$before.'-?0+'.$units.'?'.$after.'/', '0\\1', $content); - - // IE doesn't seem to understand a unitless flex-basis value (correct - - // it goes against the spec), so let's add it in again (make it `%`, - // which is only 1 char: 0%, 0px, 0 anything, it's all just the same) - // @see https://developer.mozilla.org/nl/docs/Web/CSS/flex - $content = preg_replace('/flex:([0-9]+\s[0-9]+\s)0([;\}])/', 'flex:${1}0%${2}', $content); - $content = preg_replace('/flex-basis:0([;\}])/', 'flex-basis:0%${1}', $content); - - // restore `calc()` expressions - $content = str_replace(array_keys($calcs), $calcs, $content); - - return $content; - } - - /** - * Strip empty tags from source code. - * - * @param string $content - * - * @return string - */ - protected function stripEmptyTags($content) - { - $content = preg_replace('/(?<=^)[^\{\};]+\{\s*\}/', '', $content); - $content = preg_replace('/(?<=(\}|;))[^\{\};]+\{\s*\}/', '', $content); - - return $content; - } - - /** - * Strip comments from source code. - */ - protected function stripComments() - { - $this->registerPattern('/\/\*.*?\*\//s', ''); - } - - /** - * Strip whitespace. - * - * @param string $content The CSS content to strip the whitespace for - * - * @return string - */ - protected function stripWhitespace($content) - { - // remove leading & trailing whitespace - $content = preg_replace('/^\s*/m', '', $content); - $content = preg_replace('/\s*$/m', '', $content); - - // replace newlines with a single space - $content = preg_replace('/\s+/', ' ', $content); - - // remove whitespace around meta characters - // inspired by stackoverflow.com/questions/15195750/minify-compress-css-with-regex - $content = preg_replace('/\s*([\*$~^|]?+=|[{};,>~]|!important\b)\s*/', '$1', $content); - $content = preg_replace('/([\[(:])\s+/', '$1', $content); - $content = preg_replace('/\s+([\]\)])/', '$1', $content); - $content = preg_replace('/\s+(:)(?![^\}]*\{)/', '$1', $content); - - // whitespace around + and - can only be stripped inside some pseudo- - // classes, like `:nth-child(3+2n)` - // not in things like `calc(3px + 2px)`, shorthands like `3px -2px`, or - // selectors like `div.weird- p` - $pseudos = array('nth-child', 'nth-last-child', 'nth-last-of-type', 'nth-of-type'); - $content = preg_replace('/:('.implode('|', $pseudos).')\(\s*([+-]?)\s*(.+?)\s*([+-]?)\s*(.*?)\s*\)/', ':$1($2$3$4$5)', $content); - - // remove semicolon/whitespace followed by closing bracket - $content = str_replace(';}', '}', $content); - - return trim($content); - } - - /** - * Find all `calc()` occurrences. - * - * @param string $content The CSS content to find `calc()`s in. - * - * @return string[] - */ - protected function findCalcs($content) - { - $results = array(); - preg_match_all('/calc(\(.+?)(?=$|;|calc\()/', $content, $matches, PREG_SET_ORDER); - - foreach ($matches as $match) { - $length = strlen($match[1]); - $expr = ''; - $opened = 0; - - for ($i = 0; $i < $length; $i++) { - $char = $match[1][$i]; - $expr .= $char; - if ($char === '(') { - $opened++; - } elseif ($char === ')' && --$opened === 0) { - break; - } - } - - $results['calc('.count($results).')'] = 'calc'.$expr; - } - - return $results; - } - - /** - * Check if file is small enough to be imported. - * - * @param string $path The path to the file - * - * @return bool - */ - protected function canImportBySize($path) - { - return ($size = @filesize($path)) && $size <= $this->maxImportSize * 1024; - } - - /** - * Check if file a file can be imported, going by the path. - * - * @param string $path - * - * @return bool - */ - protected function canImportByPath($path) - { - return preg_match('/^(data:|https?:|\\/)/', $path) === 0; - } - - /** - * Return a converter to update relative paths to be relative to the new - * destination. - * - * @param string $source - * @param string $target - * - * @return ConverterInterface - */ - protected function getPathConverter($source, $target) - { - return new Converter($source, $target); - } -} diff --git a/assets/php/vendor/matthiasmullie/minify/src/Exception.php b/assets/php/vendor/matthiasmullie/minify/src/Exception.php deleted file mode 100755 index d03898f..0000000 --- a/assets/php/vendor/matthiasmullie/minify/src/Exception.php +++ /dev/null @@ -1,20 +0,0 @@ -<?php -/** - * Base Exception - * - * @deprecated Use Exceptions\BasicException instead - * - * @author Matthias Mullie <minify@mullie.eu> - */ -namespace MatthiasMullie\Minify; - -/** - * Base Exception Class - * @deprecated Use Exceptions\BasicException instead - * - * @package Minify - * @author Matthias Mullie <minify@mullie.eu> - */ -abstract class Exception extends \Exception -{ -} diff --git a/assets/php/vendor/matthiasmullie/minify/src/Exceptions/BasicException.php b/assets/php/vendor/matthiasmullie/minify/src/Exceptions/BasicException.php deleted file mode 100755 index af5e81b..0000000 --- a/assets/php/vendor/matthiasmullie/minify/src/Exceptions/BasicException.php +++ /dev/null @@ -1,23 +0,0 @@ -<?php -/** - * Basic exception - * - * Please report bugs on https://github.com/matthiasmullie/minify/issues - * - * @author Matthias Mullie <minify@mullie.eu> - * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved - * @license MIT License - */ -namespace MatthiasMullie\Minify\Exceptions; - -use MatthiasMullie\Minify\Exception; - -/** - * Basic Exception Class - * - * @package Minify\Exception - * @author Matthias Mullie <minify@mullie.eu> - */ -abstract class BasicException extends Exception -{ -} diff --git a/assets/php/vendor/matthiasmullie/minify/src/Exceptions/FileImportException.php b/assets/php/vendor/matthiasmullie/minify/src/Exceptions/FileImportException.php deleted file mode 100755 index 912a2c9..0000000 --- a/assets/php/vendor/matthiasmullie/minify/src/Exceptions/FileImportException.php +++ /dev/null @@ -1,21 +0,0 @@ -<?php -/** - * File Import Exception - * - * Please report bugs on https://github.com/matthiasmullie/minify/issues - * - * @author Matthias Mullie <minify@mullie.eu> - * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved - * @license MIT License - */ -namespace MatthiasMullie\Minify\Exceptions; - -/** - * File Import Exception Class - * - * @package Minify\Exception - * @author Matthias Mullie <minify@mullie.eu> - */ -class FileImportException extends BasicException -{ -} diff --git a/assets/php/vendor/matthiasmullie/minify/src/Exceptions/IOException.php b/assets/php/vendor/matthiasmullie/minify/src/Exceptions/IOException.php deleted file mode 100755 index b172eb4..0000000 --- a/assets/php/vendor/matthiasmullie/minify/src/Exceptions/IOException.php +++ /dev/null @@ -1,21 +0,0 @@ -<?php -/** - * IO Exception - * - * Please report bugs on https://github.com/matthiasmullie/minify/issues - * - * @author Matthias Mullie <minify@mullie.eu> - * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved - * @license MIT License - */ -namespace MatthiasMullie\Minify\Exceptions; - -/** - * IO Exception Class - * - * @package Minify\Exception - * @author Matthias Mullie <minify@mullie.eu> - */ -class IOException extends BasicException -{ -} diff --git a/assets/php/vendor/matthiasmullie/minify/src/JS.php b/assets/php/vendor/matthiasmullie/minify/src/JS.php deleted file mode 100755 index 651d8be..0000000 --- a/assets/php/vendor/matthiasmullie/minify/src/JS.php +++ /dev/null @@ -1,598 +0,0 @@ -<?php -/** - * JavaScript minifier - * - * Please report bugs on https://github.com/matthiasmullie/minify/issues - * - * @author Matthias Mullie <minify@mullie.eu> - * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved - * @license MIT License - */ -namespace MatthiasMullie\Minify; - -/** - * JavaScript Minifier Class - * - * Please report bugs on https://github.com/matthiasmullie/minify/issues - * - * @package Minify - * @author Matthias Mullie <minify@mullie.eu> - * @author Tijs Verkoyen <minify@verkoyen.eu> - * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved - * @license MIT License - */ -class JS extends Minify -{ - /** - * Var-matching regex based on http://stackoverflow.com/a/9337047/802993. - * - * Note that regular expressions using that bit must have the PCRE_UTF8 - * pattern modifier (/u) set. - * - * @var string - */ - const REGEX_VARIABLE = '\b[$A-Z\_a-z\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\x{02c1}\x{02c6}-\x{02d1}\x{02e0}-\x{02e4}\x{02ec}\x{02ee}\x{0370}-\x{0374}\x{0376}\x{0377}\x{037a}-\x{037d}\x{0386}\x{0388}-\x{038a}\x{038c}\x{038e}-\x{03a1}\x{03a3}-\x{03f5}\x{03f7}-\x{0481}\x{048a}-\x{0527}\x{0531}-\x{0556}\x{0559}\x{0561}-\x{0587}\x{05d0}-\x{05ea}\x{05f0}-\x{05f2}\x{0620}-\x{064a}\x{066e}\x{066f}\x{0671}-\x{06d3}\x{06d5}\x{06e5}\x{06e6}\x{06ee}\x{06ef}\x{06fa}-\x{06fc}\x{06ff}\x{0710}\x{0712}-\x{072f}\x{074d}-\x{07a5}\x{07b1}\x{07ca}-\x{07ea}\x{07f4}\x{07f5}\x{07fa}\x{0800}-\x{0815}\x{081a}\x{0824}\x{0828}\x{0840}-\x{0858}\x{08a0}\x{08a2}-\x{08ac}\x{0904}-\x{0939}\x{093d}\x{0950}\x{0958}-\x{0961}\x{0971}-\x{0977}\x{0979}-\x{097f}\x{0985}-\x{098c}\x{098f}\x{0990}\x{0993}-\x{09a8}\x{09aa}-\x{09b0}\x{09b2}\x{09b6}-\x{09b9}\x{09bd}\x{09ce}\x{09dc}\x{09dd}\x{09df}-\x{09e1}\x{09f0}\x{09f1}\x{0a05}-\x{0a0a}\x{0a0f}\x{0a10}\x{0a13}-\x{0a28}\x{0a2a}-\x{0a30}\x{0a32}\x{0a33}\x{0a35}\x{0a36}\x{0a38}\x{0a39}\x{0a59}-\x{0a5c}\x{0a5e}\x{0a72}-\x{0a74}\x{0a85}-\x{0a8d}\x{0a8f}-\x{0a91}\x{0a93}-\x{0aa8}\x{0aaa}-\x{0ab0}\x{0ab2}\x{0ab3}\x{0ab5}-\x{0ab9}\x{0abd}\x{0ad0}\x{0ae0}\x{0ae1}\x{0b05}-\x{0b0c}\x{0b0f}\x{0b10}\x{0b13}-\x{0b28}\x{0b2a}-\x{0b30}\x{0b32}\x{0b33}\x{0b35}-\x{0b39}\x{0b3d}\x{0b5c}\x{0b5d}\x{0b5f}-\x{0b61}\x{0b71}\x{0b83}\x{0b85}-\x{0b8a}\x{0b8e}-\x{0b90}\x{0b92}-\x{0b95}\x{0b99}\x{0b9a}\x{0b9c}\x{0b9e}\x{0b9f}\x{0ba3}\x{0ba4}\x{0ba8}-\x{0baa}\x{0bae}-\x{0bb9}\x{0bd0}\x{0c05}-\x{0c0c}\x{0c0e}-\x{0c10}\x{0c12}-\x{0c28}\x{0c2a}-\x{0c33}\x{0c35}-\x{0c39}\x{0c3d}\x{0c58}\x{0c59}\x{0c60}\x{0c61}\x{0c85}-\x{0c8c}\x{0c8e}-\x{0c90}\x{0c92}-\x{0ca8}\x{0caa}-\x{0cb3}\x{0cb5}-\x{0cb9}\x{0cbd}\x{0cde}\x{0ce0}\x{0ce1}\x{0cf1}\x{0cf2}\x{0d05}-\x{0d0c}\x{0d0e}-\x{0d10}\x{0d12}-\x{0d3a}\x{0d3d}\x{0d4e}\x{0d60}\x{0d61}\x{0d7a}-\x{0d7f}\x{0d85}-\x{0d96}\x{0d9a}-\x{0db1}\x{0db3}-\x{0dbb}\x{0dbd}\x{0dc0}-\x{0dc6}\x{0e01}-\x{0e30}\x{0e32}\x{0e33}\x{0e40}-\x{0e46}\x{0e81}\x{0e82}\x{0e84}\x{0e87}\x{0e88}\x{0e8a}\x{0e8d}\x{0e94}-\x{0e97}\x{0e99}-\x{0e9f}\x{0ea1}-\x{0ea3}\x{0ea5}\x{0ea7}\x{0eaa}\x{0eab}\x{0ead}-\x{0eb0}\x{0eb2}\x{0eb3}\x{0ebd}\x{0ec0}-\x{0ec4}\x{0ec6}\x{0edc}-\x{0edf}\x{0f00}\x{0f40}-\x{0f47}\x{0f49}-\x{0f6c}\x{0f88}-\x{0f8c}\x{1000}-\x{102a}\x{103f}\x{1050}-\x{1055}\x{105a}-\x{105d}\x{1061}\x{1065}\x{1066}\x{106e}-\x{1070}\x{1075}-\x{1081}\x{108e}\x{10a0}-\x{10c5}\x{10c7}\x{10cd}\x{10d0}-\x{10fa}\x{10fc}-\x{1248}\x{124a}-\x{124d}\x{1250}-\x{1256}\x{1258}\x{125a}-\x{125d}\x{1260}-\x{1288}\x{128a}-\x{128d}\x{1290}-\x{12b0}\x{12b2}-\x{12b5}\x{12b8}-\x{12be}\x{12c0}\x{12c2}-\x{12c5}\x{12c8}-\x{12d6}\x{12d8}-\x{1310}\x{1312}-\x{1315}\x{1318}-\x{135a}\x{1380}-\x{138f}\x{13a0}-\x{13f4}\x{1401}-\x{166c}\x{166f}-\x{167f}\x{1681}-\x{169a}\x{16a0}-\x{16ea}\x{16ee}-\x{16f0}\x{1700}-\x{170c}\x{170e}-\x{1711}\x{1720}-\x{1731}\x{1740}-\x{1751}\x{1760}-\x{176c}\x{176e}-\x{1770}\x{1780}-\x{17b3}\x{17d7}\x{17dc}\x{1820}-\x{1877}\x{1880}-\x{18a8}\x{18aa}\x{18b0}-\x{18f5}\x{1900}-\x{191c}\x{1950}-\x{196d}\x{1970}-\x{1974}\x{1980}-\x{19ab}\x{19c1}-\x{19c7}\x{1a00}-\x{1a16}\x{1a20}-\x{1a54}\x{1aa7}\x{1b05}-\x{1b33}\x{1b45}-\x{1b4b}\x{1b83}-\x{1ba0}\x{1bae}\x{1baf}\x{1bba}-\x{1be5}\x{1c00}-\x{1c23}\x{1c4d}-\x{1c4f}\x{1c5a}-\x{1c7d}\x{1ce9}-\x{1cec}\x{1cee}-\x{1cf1}\x{1cf5}\x{1cf6}\x{1d00}-\x{1dbf}\x{1e00}-\x{1f15}\x{1f18}-\x{1f1d}\x{1f20}-\x{1f45}\x{1f48}-\x{1f4d}\x{1f50}-\x{1f57}\x{1f59}\x{1f5b}\x{1f5d}\x{1f5f}-\x{1f7d}\x{1f80}-\x{1fb4}\x{1fb6}-\x{1fbc}\x{1fbe}\x{1fc2}-\x{1fc4}\x{1fc6}-\x{1fcc}\x{1fd0}-\x{1fd3}\x{1fd6}-\x{1fdb}\x{1fe0}-\x{1fec}\x{1ff2}-\x{1ff4}\x{1ff6}-\x{1ffc}\x{2071}\x{207f}\x{2090}-\x{209c}\x{2102}\x{2107}\x{210a}-\x{2113}\x{2115}\x{2119}-\x{211d}\x{2124}\x{2126}\x{2128}\x{212a}-\x{212d}\x{212f}-\x{2139}\x{213c}-\x{213f}\x{2145}-\x{2149}\x{214e}\x{2160}-\x{2188}\x{2c00}-\x{2c2e}\x{2c30}-\x{2c5e}\x{2c60}-\x{2ce4}\x{2ceb}-\x{2cee}\x{2cf2}\x{2cf3}\x{2d00}-\x{2d25}\x{2d27}\x{2d2d}\x{2d30}-\x{2d67}\x{2d6f}\x{2d80}-\x{2d96}\x{2da0}-\x{2da6}\x{2da8}-\x{2dae}\x{2db0}-\x{2db6}\x{2db8}-\x{2dbe}\x{2dc0}-\x{2dc6}\x{2dc8}-\x{2dce}\x{2dd0}-\x{2dd6}\x{2dd8}-\x{2dde}\x{2e2f}\x{3005}-\x{3007}\x{3021}-\x{3029}\x{3031}-\x{3035}\x{3038}-\x{303c}\x{3041}-\x{3096}\x{309d}-\x{309f}\x{30a1}-\x{30fa}\x{30fc}-\x{30ff}\x{3105}-\x{312d}\x{3131}-\x{318e}\x{31a0}-\x{31ba}\x{31f0}-\x{31ff}\x{3400}-\x{4db5}\x{4e00}-\x{9fcc}\x{a000}-\x{a48c}\x{a4d0}-\x{a4fd}\x{a500}-\x{a60c}\x{a610}-\x{a61f}\x{a62a}\x{a62b}\x{a640}-\x{a66e}\x{a67f}-\x{a697}\x{a6a0}-\x{a6ef}\x{a717}-\x{a71f}\x{a722}-\x{a788}\x{a78b}-\x{a78e}\x{a790}-\x{a793}\x{a7a0}-\x{a7aa}\x{a7f8}-\x{a801}\x{a803}-\x{a805}\x{a807}-\x{a80a}\x{a80c}-\x{a822}\x{a840}-\x{a873}\x{a882}-\x{a8b3}\x{a8f2}-\x{a8f7}\x{a8fb}\x{a90a}-\x{a925}\x{a930}-\x{a946}\x{a960}-\x{a97c}\x{a984}-\x{a9b2}\x{a9cf}\x{aa00}-\x{aa28}\x{aa40}-\x{aa42}\x{aa44}-\x{aa4b}\x{aa60}-\x{aa76}\x{aa7a}\x{aa80}-\x{aaaf}\x{aab1}\x{aab5}\x{aab6}\x{aab9}-\x{aabd}\x{aac0}\x{aac2}\x{aadb}-\x{aadd}\x{aae0}-\x{aaea}\x{aaf2}-\x{aaf4}\x{ab01}-\x{ab06}\x{ab09}-\x{ab0e}\x{ab11}-\x{ab16}\x{ab20}-\x{ab26}\x{ab28}-\x{ab2e}\x{abc0}-\x{abe2}\x{ac00}-\x{d7a3}\x{d7b0}-\x{d7c6}\x{d7cb}-\x{d7fb}\x{f900}-\x{fa6d}\x{fa70}-\x{fad9}\x{fb00}-\x{fb06}\x{fb13}-\x{fb17}\x{fb1d}\x{fb1f}-\x{fb28}\x{fb2a}-\x{fb36}\x{fb38}-\x{fb3c}\x{fb3e}\x{fb40}\x{fb41}\x{fb43}\x{fb44}\x{fb46}-\x{fbb1}\x{fbd3}-\x{fd3d}\x{fd50}-\x{fd8f}\x{fd92}-\x{fdc7}\x{fdf0}-\x{fdfb}\x{fe70}-\x{fe74}\x{fe76}-\x{fefc}\x{ff21}-\x{ff3a}\x{ff41}-\x{ff5a}\x{ff66}-\x{ffbe}\x{ffc2}-\x{ffc7}\x{ffca}-\x{ffcf}\x{ffd2}-\x{ffd7}\x{ffda}-\x{ffdc}][$A-Z\_a-z\xaa\xb5\xba\xc0-\xd6\xd8-\xf6\xf8-\x{02c1}\x{02c6}-\x{02d1}\x{02e0}-\x{02e4}\x{02ec}\x{02ee}\x{0370}-\x{0374}\x{0376}\x{0377}\x{037a}-\x{037d}\x{0386}\x{0388}-\x{038a}\x{038c}\x{038e}-\x{03a1}\x{03a3}-\x{03f5}\x{03f7}-\x{0481}\x{048a}-\x{0527}\x{0531}-\x{0556}\x{0559}\x{0561}-\x{0587}\x{05d0}-\x{05ea}\x{05f0}-\x{05f2}\x{0620}-\x{064a}\x{066e}\x{066f}\x{0671}-\x{06d3}\x{06d5}\x{06e5}\x{06e6}\x{06ee}\x{06ef}\x{06fa}-\x{06fc}\x{06ff}\x{0710}\x{0712}-\x{072f}\x{074d}-\x{07a5}\x{07b1}\x{07ca}-\x{07ea}\x{07f4}\x{07f5}\x{07fa}\x{0800}-\x{0815}\x{081a}\x{0824}\x{0828}\x{0840}-\x{0858}\x{08a0}\x{08a2}-\x{08ac}\x{0904}-\x{0939}\x{093d}\x{0950}\x{0958}-\x{0961}\x{0971}-\x{0977}\x{0979}-\x{097f}\x{0985}-\x{098c}\x{098f}\x{0990}\x{0993}-\x{09a8}\x{09aa}-\x{09b0}\x{09b2}\x{09b6}-\x{09b9}\x{09bd}\x{09ce}\x{09dc}\x{09dd}\x{09df}-\x{09e1}\x{09f0}\x{09f1}\x{0a05}-\x{0a0a}\x{0a0f}\x{0a10}\x{0a13}-\x{0a28}\x{0a2a}-\x{0a30}\x{0a32}\x{0a33}\x{0a35}\x{0a36}\x{0a38}\x{0a39}\x{0a59}-\x{0a5c}\x{0a5e}\x{0a72}-\x{0a74}\x{0a85}-\x{0a8d}\x{0a8f}-\x{0a91}\x{0a93}-\x{0aa8}\x{0aaa}-\x{0ab0}\x{0ab2}\x{0ab3}\x{0ab5}-\x{0ab9}\x{0abd}\x{0ad0}\x{0ae0}\x{0ae1}\x{0b05}-\x{0b0c}\x{0b0f}\x{0b10}\x{0b13}-\x{0b28}\x{0b2a}-\x{0b30}\x{0b32}\x{0b33}\x{0b35}-\x{0b39}\x{0b3d}\x{0b5c}\x{0b5d}\x{0b5f}-\x{0b61}\x{0b71}\x{0b83}\x{0b85}-\x{0b8a}\x{0b8e}-\x{0b90}\x{0b92}-\x{0b95}\x{0b99}\x{0b9a}\x{0b9c}\x{0b9e}\x{0b9f}\x{0ba3}\x{0ba4}\x{0ba8}-\x{0baa}\x{0bae}-\x{0bb9}\x{0bd0}\x{0c05}-\x{0c0c}\x{0c0e}-\x{0c10}\x{0c12}-\x{0c28}\x{0c2a}-\x{0c33}\x{0c35}-\x{0c39}\x{0c3d}\x{0c58}\x{0c59}\x{0c60}\x{0c61}\x{0c85}-\x{0c8c}\x{0c8e}-\x{0c90}\x{0c92}-\x{0ca8}\x{0caa}-\x{0cb3}\x{0cb5}-\x{0cb9}\x{0cbd}\x{0cde}\x{0ce0}\x{0ce1}\x{0cf1}\x{0cf2}\x{0d05}-\x{0d0c}\x{0d0e}-\x{0d10}\x{0d12}-\x{0d3a}\x{0d3d}\x{0d4e}\x{0d60}\x{0d61}\x{0d7a}-\x{0d7f}\x{0d85}-\x{0d96}\x{0d9a}-\x{0db1}\x{0db3}-\x{0dbb}\x{0dbd}\x{0dc0}-\x{0dc6}\x{0e01}-\x{0e30}\x{0e32}\x{0e33}\x{0e40}-\x{0e46}\x{0e81}\x{0e82}\x{0e84}\x{0e87}\x{0e88}\x{0e8a}\x{0e8d}\x{0e94}-\x{0e97}\x{0e99}-\x{0e9f}\x{0ea1}-\x{0ea3}\x{0ea5}\x{0ea7}\x{0eaa}\x{0eab}\x{0ead}-\x{0eb0}\x{0eb2}\x{0eb3}\x{0ebd}\x{0ec0}-\x{0ec4}\x{0ec6}\x{0edc}-\x{0edf}\x{0f00}\x{0f40}-\x{0f47}\x{0f49}-\x{0f6c}\x{0f88}-\x{0f8c}\x{1000}-\x{102a}\x{103f}\x{1050}-\x{1055}\x{105a}-\x{105d}\x{1061}\x{1065}\x{1066}\x{106e}-\x{1070}\x{1075}-\x{1081}\x{108e}\x{10a0}-\x{10c5}\x{10c7}\x{10cd}\x{10d0}-\x{10fa}\x{10fc}-\x{1248}\x{124a}-\x{124d}\x{1250}-\x{1256}\x{1258}\x{125a}-\x{125d}\x{1260}-\x{1288}\x{128a}-\x{128d}\x{1290}-\x{12b0}\x{12b2}-\x{12b5}\x{12b8}-\x{12be}\x{12c0}\x{12c2}-\x{12c5}\x{12c8}-\x{12d6}\x{12d8}-\x{1310}\x{1312}-\x{1315}\x{1318}-\x{135a}\x{1380}-\x{138f}\x{13a0}-\x{13f4}\x{1401}-\x{166c}\x{166f}-\x{167f}\x{1681}-\x{169a}\x{16a0}-\x{16ea}\x{16ee}-\x{16f0}\x{1700}-\x{170c}\x{170e}-\x{1711}\x{1720}-\x{1731}\x{1740}-\x{1751}\x{1760}-\x{176c}\x{176e}-\x{1770}\x{1780}-\x{17b3}\x{17d7}\x{17dc}\x{1820}-\x{1877}\x{1880}-\x{18a8}\x{18aa}\x{18b0}-\x{18f5}\x{1900}-\x{191c}\x{1950}-\x{196d}\x{1970}-\x{1974}\x{1980}-\x{19ab}\x{19c1}-\x{19c7}\x{1a00}-\x{1a16}\x{1a20}-\x{1a54}\x{1aa7}\x{1b05}-\x{1b33}\x{1b45}-\x{1b4b}\x{1b83}-\x{1ba0}\x{1bae}\x{1baf}\x{1bba}-\x{1be5}\x{1c00}-\x{1c23}\x{1c4d}-\x{1c4f}\x{1c5a}-\x{1c7d}\x{1ce9}-\x{1cec}\x{1cee}-\x{1cf1}\x{1cf5}\x{1cf6}\x{1d00}-\x{1dbf}\x{1e00}-\x{1f15}\x{1f18}-\x{1f1d}\x{1f20}-\x{1f45}\x{1f48}-\x{1f4d}\x{1f50}-\x{1f57}\x{1f59}\x{1f5b}\x{1f5d}\x{1f5f}-\x{1f7d}\x{1f80}-\x{1fb4}\x{1fb6}-\x{1fbc}\x{1fbe}\x{1fc2}-\x{1fc4}\x{1fc6}-\x{1fcc}\x{1fd0}-\x{1fd3}\x{1fd6}-\x{1fdb}\x{1fe0}-\x{1fec}\x{1ff2}-\x{1ff4}\x{1ff6}-\x{1ffc}\x{2071}\x{207f}\x{2090}-\x{209c}\x{2102}\x{2107}\x{210a}-\x{2113}\x{2115}\x{2119}-\x{211d}\x{2124}\x{2126}\x{2128}\x{212a}-\x{212d}\x{212f}-\x{2139}\x{213c}-\x{213f}\x{2145}-\x{2149}\x{214e}\x{2160}-\x{2188}\x{2c00}-\x{2c2e}\x{2c30}-\x{2c5e}\x{2c60}-\x{2ce4}\x{2ceb}-\x{2cee}\x{2cf2}\x{2cf3}\x{2d00}-\x{2d25}\x{2d27}\x{2d2d}\x{2d30}-\x{2d67}\x{2d6f}\x{2d80}-\x{2d96}\x{2da0}-\x{2da6}\x{2da8}-\x{2dae}\x{2db0}-\x{2db6}\x{2db8}-\x{2dbe}\x{2dc0}-\x{2dc6}\x{2dc8}-\x{2dce}\x{2dd0}-\x{2dd6}\x{2dd8}-\x{2dde}\x{2e2f}\x{3005}-\x{3007}\x{3021}-\x{3029}\x{3031}-\x{3035}\x{3038}-\x{303c}\x{3041}-\x{3096}\x{309d}-\x{309f}\x{30a1}-\x{30fa}\x{30fc}-\x{30ff}\x{3105}-\x{312d}\x{3131}-\x{318e}\x{31a0}-\x{31ba}\x{31f0}-\x{31ff}\x{3400}-\x{4db5}\x{4e00}-\x{9fcc}\x{a000}-\x{a48c}\x{a4d0}-\x{a4fd}\x{a500}-\x{a60c}\x{a610}-\x{a61f}\x{a62a}\x{a62b}\x{a640}-\x{a66e}\x{a67f}-\x{a697}\x{a6a0}-\x{a6ef}\x{a717}-\x{a71f}\x{a722}-\x{a788}\x{a78b}-\x{a78e}\x{a790}-\x{a793}\x{a7a0}-\x{a7aa}\x{a7f8}-\x{a801}\x{a803}-\x{a805}\x{a807}-\x{a80a}\x{a80c}-\x{a822}\x{a840}-\x{a873}\x{a882}-\x{a8b3}\x{a8f2}-\x{a8f7}\x{a8fb}\x{a90a}-\x{a925}\x{a930}-\x{a946}\x{a960}-\x{a97c}\x{a984}-\x{a9b2}\x{a9cf}\x{aa00}-\x{aa28}\x{aa40}-\x{aa42}\x{aa44}-\x{aa4b}\x{aa60}-\x{aa76}\x{aa7a}\x{aa80}-\x{aaaf}\x{aab1}\x{aab5}\x{aab6}\x{aab9}-\x{aabd}\x{aac0}\x{aac2}\x{aadb}-\x{aadd}\x{aae0}-\x{aaea}\x{aaf2}-\x{aaf4}\x{ab01}-\x{ab06}\x{ab09}-\x{ab0e}\x{ab11}-\x{ab16}\x{ab20}-\x{ab26}\x{ab28}-\x{ab2e}\x{abc0}-\x{abe2}\x{ac00}-\x{d7a3}\x{d7b0}-\x{d7c6}\x{d7cb}-\x{d7fb}\x{f900}-\x{fa6d}\x{fa70}-\x{fad9}\x{fb00}-\x{fb06}\x{fb13}-\x{fb17}\x{fb1d}\x{fb1f}-\x{fb28}\x{fb2a}-\x{fb36}\x{fb38}-\x{fb3c}\x{fb3e}\x{fb40}\x{fb41}\x{fb43}\x{fb44}\x{fb46}-\x{fbb1}\x{fbd3}-\x{fd3d}\x{fd50}-\x{fd8f}\x{fd92}-\x{fdc7}\x{fdf0}-\x{fdfb}\x{fe70}-\x{fe74}\x{fe76}-\x{fefc}\x{ff21}-\x{ff3a}\x{ff41}-\x{ff5a}\x{ff66}-\x{ffbe}\x{ffc2}-\x{ffc7}\x{ffca}-\x{ffcf}\x{ffd2}-\x{ffd7}\x{ffda}-\x{ffdc}0-9\x{0300}-\x{036f}\x{0483}-\x{0487}\x{0591}-\x{05bd}\x{05bf}\x{05c1}\x{05c2}\x{05c4}\x{05c5}\x{05c7}\x{0610}-\x{061a}\x{064b}-\x{0669}\x{0670}\x{06d6}-\x{06dc}\x{06df}-\x{06e4}\x{06e7}\x{06e8}\x{06ea}-\x{06ed}\x{06f0}-\x{06f9}\x{0711}\x{0730}-\x{074a}\x{07a6}-\x{07b0}\x{07c0}-\x{07c9}\x{07eb}-\x{07f3}\x{0816}-\x{0819}\x{081b}-\x{0823}\x{0825}-\x{0827}\x{0829}-\x{082d}\x{0859}-\x{085b}\x{08e4}-\x{08fe}\x{0900}-\x{0903}\x{093a}-\x{093c}\x{093e}-\x{094f}\x{0951}-\x{0957}\x{0962}\x{0963}\x{0966}-\x{096f}\x{0981}-\x{0983}\x{09bc}\x{09be}-\x{09c4}\x{09c7}\x{09c8}\x{09cb}-\x{09cd}\x{09d7}\x{09e2}\x{09e3}\x{09e6}-\x{09ef}\x{0a01}-\x{0a03}\x{0a3c}\x{0a3e}-\x{0a42}\x{0a47}\x{0a48}\x{0a4b}-\x{0a4d}\x{0a51}\x{0a66}-\x{0a71}\x{0a75}\x{0a81}-\x{0a83}\x{0abc}\x{0abe}-\x{0ac5}\x{0ac7}-\x{0ac9}\x{0acb}-\x{0acd}\x{0ae2}\x{0ae3}\x{0ae6}-\x{0aef}\x{0b01}-\x{0b03}\x{0b3c}\x{0b3e}-\x{0b44}\x{0b47}\x{0b48}\x{0b4b}-\x{0b4d}\x{0b56}\x{0b57}\x{0b62}\x{0b63}\x{0b66}-\x{0b6f}\x{0b82}\x{0bbe}-\x{0bc2}\x{0bc6}-\x{0bc8}\x{0bca}-\x{0bcd}\x{0bd7}\x{0be6}-\x{0bef}\x{0c01}-\x{0c03}\x{0c3e}-\x{0c44}\x{0c46}-\x{0c48}\x{0c4a}-\x{0c4d}\x{0c55}\x{0c56}\x{0c62}\x{0c63}\x{0c66}-\x{0c6f}\x{0c82}\x{0c83}\x{0cbc}\x{0cbe}-\x{0cc4}\x{0cc6}-\x{0cc8}\x{0cca}-\x{0ccd}\x{0cd5}\x{0cd6}\x{0ce2}\x{0ce3}\x{0ce6}-\x{0cef}\x{0d02}\x{0d03}\x{0d3e}-\x{0d44}\x{0d46}-\x{0d48}\x{0d4a}-\x{0d4d}\x{0d57}\x{0d62}\x{0d63}\x{0d66}-\x{0d6f}\x{0d82}\x{0d83}\x{0dca}\x{0dcf}-\x{0dd4}\x{0dd6}\x{0dd8}-\x{0ddf}\x{0df2}\x{0df3}\x{0e31}\x{0e34}-\x{0e3a}\x{0e47}-\x{0e4e}\x{0e50}-\x{0e59}\x{0eb1}\x{0eb4}-\x{0eb9}\x{0ebb}\x{0ebc}\x{0ec8}-\x{0ecd}\x{0ed0}-\x{0ed9}\x{0f18}\x{0f19}\x{0f20}-\x{0f29}\x{0f35}\x{0f37}\x{0f39}\x{0f3e}\x{0f3f}\x{0f71}-\x{0f84}\x{0f86}\x{0f87}\x{0f8d}-\x{0f97}\x{0f99}-\x{0fbc}\x{0fc6}\x{102b}-\x{103e}\x{1040}-\x{1049}\x{1056}-\x{1059}\x{105e}-\x{1060}\x{1062}-\x{1064}\x{1067}-\x{106d}\x{1071}-\x{1074}\x{1082}-\x{108d}\x{108f}-\x{109d}\x{135d}-\x{135f}\x{1712}-\x{1714}\x{1732}-\x{1734}\x{1752}\x{1753}\x{1772}\x{1773}\x{17b4}-\x{17d3}\x{17dd}\x{17e0}-\x{17e9}\x{180b}-\x{180d}\x{1810}-\x{1819}\x{18a9}\x{1920}-\x{192b}\x{1930}-\x{193b}\x{1946}-\x{194f}\x{19b0}-\x{19c0}\x{19c8}\x{19c9}\x{19d0}-\x{19d9}\x{1a17}-\x{1a1b}\x{1a55}-\x{1a5e}\x{1a60}-\x{1a7c}\x{1a7f}-\x{1a89}\x{1a90}-\x{1a99}\x{1b00}-\x{1b04}\x{1b34}-\x{1b44}\x{1b50}-\x{1b59}\x{1b6b}-\x{1b73}\x{1b80}-\x{1b82}\x{1ba1}-\x{1bad}\x{1bb0}-\x{1bb9}\x{1be6}-\x{1bf3}\x{1c24}-\x{1c37}\x{1c40}-\x{1c49}\x{1c50}-\x{1c59}\x{1cd0}-\x{1cd2}\x{1cd4}-\x{1ce8}\x{1ced}\x{1cf2}-\x{1cf4}\x{1dc0}-\x{1de6}\x{1dfc}-\x{1dff}\x{200c}\x{200d}\x{203f}\x{2040}\x{2054}\x{20d0}-\x{20dc}\x{20e1}\x{20e5}-\x{20f0}\x{2cef}-\x{2cf1}\x{2d7f}\x{2de0}-\x{2dff}\x{302a}-\x{302f}\x{3099}\x{309a}\x{a620}-\x{a629}\x{a66f}\x{a674}-\x{a67d}\x{a69f}\x{a6f0}\x{a6f1}\x{a802}\x{a806}\x{a80b}\x{a823}-\x{a827}\x{a880}\x{a881}\x{a8b4}-\x{a8c4}\x{a8d0}-\x{a8d9}\x{a8e0}-\x{a8f1}\x{a900}-\x{a909}\x{a926}-\x{a92d}\x{a947}-\x{a953}\x{a980}-\x{a983}\x{a9b3}-\x{a9c0}\x{a9d0}-\x{a9d9}\x{aa29}-\x{aa36}\x{aa43}\x{aa4c}\x{aa4d}\x{aa50}-\x{aa59}\x{aa7b}\x{aab0}\x{aab2}-\x{aab4}\x{aab7}\x{aab8}\x{aabe}\x{aabf}\x{aac1}\x{aaeb}-\x{aaef}\x{aaf5}\x{aaf6}\x{abe3}-\x{abea}\x{abec}\x{abed}\x{abf0}-\x{abf9}\x{fb1e}\x{fe00}-\x{fe0f}\x{fe20}-\x{fe26}\x{fe33}\x{fe34}\x{fe4d}-\x{fe4f}\x{ff10}-\x{ff19}\x{ff3f}]*\b'; - - /** - * Full list of JavaScript reserved words. - * Will be loaded from /data/js/keywords_reserved.txt. - * - * @see https://mathiasbynens.be/notes/reserved-keywords - * - * @var string[] - */ - protected $keywordsReserved = array(); - - /** - * List of JavaScript reserved words that accept a <variable, value, ...> - * after them. Some end of lines are not the end of a statement, like with - * these keywords. - * - * E.g.: we shouldn't insert a ; after this else - * else - * console.log('this is quite fine') - * - * Will be loaded from /data/js/keywords_before.txt - * - * @var string[] - */ - protected $keywordsBefore = array(); - - /** - * List of JavaScript reserved words that accept a <variable, value, ...> - * before them. Some end of lines are not the end of a statement, like when - * continued by one of these keywords on the newline. - * - * E.g.: we shouldn't insert a ; before this instanceof - * variable - * instanceof String - * - * Will be loaded from /data/js/keywords_after.txt - * - * @var string[] - */ - protected $keywordsAfter = array(); - - /** - * List of all JavaScript operators. - * - * Will be loaded from /data/js/operators.txt - * - * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Expressions_and_Operators - * - * @var string[] - */ - protected $operators = array(); - - /** - * List of JavaScript operators that accept a <variable, value, ...> after - * them. Some end of lines are not the end of a statement, like with these - * operators. - * - * Note: Most operators are fine, we've only removed ++ and --. - * ++ & -- have to be joined with the value they're in-/decrementing. - * - * Will be loaded from /data/js/operators_before.txt - * - * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Expressions_and_Operators - * - * @var string[] - */ - protected $operatorsBefore = array(); - - /** - * List of JavaScript operators that accept a <variable, value, ...> before - * them. Some end of lines are not the end of a statement, like when - * continued by one of these operators on the newline. - * - * Note: Most operators are fine, we've only removed ), ], ++, --, ! and ~. - * There can't be a newline separating ! or ~ and whatever it is negating. - * ++ & -- have to be joined with the value they're in-/decrementing. - * ) & ] are "special" in that they have lots or usecases. () for example - * is used for function calls, for grouping, in if () and for (), ... - * - * Will be loaded from /data/js/operators_after.txt - * - * @see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Expressions_and_Operators - * - * @var string[] - */ - protected $operatorsAfter = array(); - - /** - * {@inheritdoc} - */ - public function __construct() - { - call_user_func_array(array('parent', '__construct'), func_get_args()); - - $dataDir = __DIR__.'/../data/js/'; - $options = FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES; - $this->keywordsReserved = file($dataDir.'keywords_reserved.txt', $options); - $this->keywordsBefore = file($dataDir.'keywords_before.txt', $options); - $this->keywordsAfter = file($dataDir.'keywords_after.txt', $options); - $this->operators = file($dataDir.'operators.txt', $options); - $this->operatorsBefore = file($dataDir.'operators_before.txt', $options); - $this->operatorsAfter = file($dataDir.'operators_after.txt', $options); - } - - /** - * Minify the data. - * Perform JS optimizations. - * - * @param string[optional] $path Path to write the data to - * - * @return string The minified data - */ - public function execute($path = null) - { - $content = ''; - - /* - * Let's first take out strings, comments and regular expressions. - * All of these can contain JS code-like characters, and we should make - * sure any further magic ignores anything inside of these. - * - * Consider this example, where we should not strip any whitespace: - * var str = "a test"; - * - * Comments will be removed altogether, strings and regular expressions - * will be replaced by placeholder text, which we'll restore later. - */ - $this->extractStrings('\'"`'); - $this->stripComments(); - $this->extractRegex(); - - // loop files - foreach ($this->data as $source => $js) { - // take out strings, comments & regex (for which we've registered - // the regexes just a few lines earlier) - $js = $this->replace($js); - - $js = $this->propertyNotation($js); - $js = $this->shortenBools($js); - $js = $this->stripWhitespace($js); - - // combine js: separating the scripts by a ; - $content .= $js.";"; - } - - // clean up leftover `;`s from the combination of multiple scripts - $content = ltrim($content, ';'); - $content = (string) substr($content, 0, -1); - - /* - * Earlier, we extracted strings & regular expressions and replaced them - * with placeholder text. This will restore them. - */ - $content = $this->restoreExtractedData($content); - - return $content; - } - - /** - * Strip comments from source code. - */ - protected function stripComments() - { - // single-line comments - $this->registerPattern('/\/\/.*$/m', ''); - - // multi-line comments - $this->registerPattern('/\/\*.*?\*\//s', ''); - } - - /** - * JS can have /-delimited regular expressions, like: /ab+c/.match(string). - * - * The content inside the regex can contain characters that may be confused - * for JS code: e.g. it could contain whitespace it needs to match & we - * don't want to strip whitespace in there. - * - * The regex can be pretty simple: we don't have to care about comments, - * (which also use slashes) because stripComments() will have stripped those - * already. - * - * This method will replace all string content with simple REGEX# - * placeholder text, so we've rid all regular expressions from characters - * that may be misinterpreted. Original regex content will be saved in - * $this->extracted and after doing all other minifying, we can restore the - * original content via restoreRegex() - */ - protected function extractRegex() - { - // PHP only supports $this inside anonymous functions since 5.4 - $minifier = $this; - $callback = function ($match) use ($minifier) { - $count = count($minifier->extracted); - $placeholder = '"'.$count.'"'; - $minifier->extracted[$placeholder] = $match[0]; - - return $placeholder; - }; - - // match all chars except `/` and `\` - // `\` is allowed though, along with whatever char follows (which is the - // one being escaped) - // this should allow all chars, except for an unescaped `/` (= the one - // closing the regex) - // then also ignore bare `/` inside `[]`, where they don't need to be - // escaped: anything inside `[]` can be ignored safely - $pattern = '\\/(?:[^\\[\\/\\\\\n\r]+|(?:\\\\.)+|(?:\\[(?:[^\\]\\\\\n\r]+|(?:\\\\.)+)+\\])+)++\\/[gimy]*'; - - // a regular expression can only be followed by a few operators or some - // of the RegExp methods (a `\` followed by a variable or value is - // likely part of a division, not a regex) - $keywords = array('do', 'in', 'new', 'else', 'throw', 'yield', 'delete', 'return', 'typeof'); - $before = '([=:,;\+\-\*\/\}\(\{\[&\|!]|^|'.implode('|', $keywords).')\s*'; - $propertiesAndMethods = array( - // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp#Properties_2 - 'constructor', - 'flags', - 'global', - 'ignoreCase', - 'multiline', - 'source', - 'sticky', - 'unicode', - // https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp#Methods_2 - 'compile(', - 'exec(', - 'test(', - 'toSource(', - 'toString(', - ); - $delimiters = array_fill(0, count($propertiesAndMethods), '/'); - $propertiesAndMethods = array_map('preg_quote', $propertiesAndMethods, $delimiters); - $after = '(?=\s*[\.,;\)\}&\|+]|\/\/|$|\.('.implode('|', $propertiesAndMethods).'))'; - $this->registerPattern('/'.$before.'\K'.$pattern.$after.'/', $callback); - - // regular expressions following a `)` are rather annoying to detect... - // quite often, `/` after `)` is a division operator & if it happens to - // be followed by another one (or a comment), it is likely to be - // confused for a regular expression - // however, it's perfectly possible for a regex to follow a `)`: after - // a single-line `if()`, `while()`, ... statement, for example - // since, when they occur like that, they're always the start of a - // statement, there's only a limited amount of ways they can be useful: - // by calling the regex methods directly - // if a regex following `)` is not followed by `.<property or method>`, - // it's quite likely not a regex - $before = '\)\s*'; - $after = '(?=\s*\.('.implode('|', $propertiesAndMethods).'))'; - $this->registerPattern('/'.$before.'\K'.$pattern.$after.'/', $callback); - - // 1 more edge case: a regex can be followed by a lot more operators or - // keywords if there's a newline (ASI) in between, where the operator - // actually starts a new statement - // (https://github.com/matthiasmullie/minify/issues/56) - $operators = $this->getOperatorsForRegex($this->operatorsBefore, '/'); - $operators += $this->getOperatorsForRegex($this->keywordsReserved, '/'); - $after = '(?=\s*\n\s*('.implode('|', $operators).'))'; - $this->registerPattern('/'.$pattern.$after.'/', $callback); - } - - /** - * Strip whitespace. - * - * We won't strip *all* whitespace, but as much as possible. The thing that - * we'll preserve are newlines we're unsure about. - * JavaScript doesn't require statements to be terminated with a semicolon. - * It will automatically fix missing semicolons with ASI (automatic semi- - * colon insertion) at the end of line causing errors (without semicolon.) - * - * Because it's sometimes hard to tell if a newline is part of a statement - * that should be terminated or not, we'll just leave some of them alone. - * - * @param string $content The content to strip the whitespace for - * - * @return string - */ - protected function stripWhitespace($content) - { - // uniform line endings, make them all line feed - $content = str_replace(array("\r\n", "\r"), "\n", $content); - - // collapse all non-line feed whitespace into a single space - $content = preg_replace('/[^\S\n]+/', ' ', $content); - - // strip leading & trailing whitespace - $content = str_replace(array(" \n", "\n "), "\n", $content); - - // collapse consecutive line feeds into just 1 - $content = preg_replace('/\n+/', "\n", $content); - - $operatorsBefore = $this->getOperatorsForRegex($this->operatorsBefore, '/'); - $operatorsAfter = $this->getOperatorsForRegex($this->operatorsAfter, '/'); - $operators = $this->getOperatorsForRegex($this->operators, '/'); - $keywordsBefore = $this->getKeywordsForRegex($this->keywordsBefore, '/'); - $keywordsAfter = $this->getKeywordsForRegex($this->keywordsAfter, '/'); - - // strip whitespace that ends in (or next line begin with) an operator - // that allows statements to be broken up over multiple lines - unset($operatorsBefore['+'], $operatorsBefore['-'], $operatorsAfter['+'], $operatorsAfter['-']); - $content = preg_replace( - array( - '/('.implode('|', $operatorsBefore).')\s+/', - '/\s+('.implode('|', $operatorsAfter).')/', - ), '\\1', $content - ); - - // make sure + and - can't be mistaken for, or joined into ++ and -- - $content = preg_replace( - array( - '/(?<![\+\-])\s*([\+\-])(?![\+\-])/', - '/(?<![\+\-])([\+\-])\s*(?![\+\-])/', - ), '\\1', $content - ); - - // collapse whitespace around reserved words into single space - $content = preg_replace('/(^|[;\}\s])\K('.implode('|', $keywordsBefore).')\s+/', '\\2 ', $content); - $content = preg_replace('/\s+('.implode('|', $keywordsAfter).')(?=([;\{\s]|$))/', ' \\1', $content); - - /* - * We didn't strip whitespace after a couple of operators because they - * could be used in different contexts and we can't be sure it's ok to - * strip the newlines. However, we can safely strip any non-line feed - * whitespace that follows them. - */ - $operatorsDiffBefore = array_diff($operators, $operatorsBefore); - $operatorsDiffAfter = array_diff($operators, $operatorsAfter); - $content = preg_replace('/('.implode('|', $operatorsDiffBefore).')[^\S\n]+/', '\\1', $content); - $content = preg_replace('/[^\S\n]+('.implode('|', $operatorsDiffAfter).')/', '\\1', $content); - - /* - * Whitespace after `return` can be omitted in a few occasions - * (such as when followed by a string or regex) - * Same for whitespace in between `)` and `{`, or between `{` and some - * keywords. - */ - $content = preg_replace('/\breturn\s+(["\'\/\+\-])/', 'return$1', $content); - $content = preg_replace('/\)\s+\{/', '){', $content); - $content = preg_replace('/}\n(else|catch|finally)\b/', '}$1', $content); - - /* - * Get rid of double semicolons, except where they can be used like: - * "for(v=1,_=b;;)", "for(v=1;;v++)" or "for(;;ja||(ja=true))". - * I'll safeguard these double semicolons inside for-loops by - * temporarily replacing them with an invalid condition: they won't have - * a double semicolon and will be easy to spot to restore afterwards. - */ - $content = preg_replace('/\bfor\(([^;]*);;([^;]*)\)/', 'for(\\1;-;\\2)', $content); - $content = preg_replace('/;+/', ';', $content); - $content = preg_replace('/\bfor\(([^;]*);-;([^;]*)\)/', 'for(\\1;;\\2)', $content); - - /* - * Next, we'll be removing all semicolons where ASI kicks in. - * for-loops however, can have an empty body (ending in only a - * semicolon), like: `for(i=1;i<3;i++);`, of `for(i in list);` - * Here, nothing happens during the loop; it's just used to keep - * increasing `i`. With that ; omitted, the next line would be expected - * to be the for-loop's body... Same goes for while loops. - * I'm going to double that semicolon (if any) so after the next line, - * which strips semicolons here & there, we're still left with this one. - */ - $content = preg_replace('/(for\([^;\{]*;[^;\{]*;[^;\{]*\));(\}|$)/s', '\\1;;\\2', $content); - $content = preg_replace('/(for\([^;\{]+\s+in\s+[^;\{]+\));(\}|$)/s', '\\1;;\\2', $content); - /* - * Below will also keep `;` after a `do{}while();` along with `while();` - * While these could be stripped after do-while, detecting this - * distinction is cumbersome, so I'll play it safe and make sure `;` - * after any kind of `while` is kept. - */ - $content = preg_replace('/(while\([^;\{]+\));(\}|$)/s', '\\1;;\\2', $content); - - /* - * We also can't strip empty else-statements. Even though they're - * useless and probably shouldn't be in the code in the first place, we - * shouldn't be stripping the `;` that follows it as it breaks the code. - * We can just remove those useless else-statements completely. - * - * @see https://github.com/matthiasmullie/minify/issues/91 - */ - $content = preg_replace('/else;/s', '', $content); - - /* - * We also don't really want to terminate statements followed by closing - * curly braces (which we've ignored completely up until now) or end-of- - * script: ASI will kick in here & we're all about minifying. - * Semicolons at beginning of the file don't make any sense either. - */ - $content = preg_replace('/;(\}|$)/s', '\\1', $content); - $content = ltrim($content, ';'); - - // get rid of remaining whitespace af beginning/end - return trim($content); - } - - /** - * We'll strip whitespace around certain operators with regular expressions. - * This will prepare the given array by escaping all characters. - * - * @param string[] $operators - * @param string $delimiter - * - * @return string[] - */ - protected function getOperatorsForRegex(array $operators, $delimiter = '/') - { - // escape operators for use in regex - $delimiters = array_fill(0, count($operators), $delimiter); - $escaped = array_map('preg_quote', $operators, $delimiters); - - $operators = array_combine($operators, $escaped); - - // ignore + & - for now, they'll get special treatment - unset($operators['+'], $operators['-']); - - // dot can not just immediately follow a number; it can be confused for - // decimal point, or calling a method on it, e.g. 42 .toString() - $operators['.'] = '(?<![0-9]\s)\.'; - - // don't confuse = with other assignment shortcuts (e.g. +=) - $chars = preg_quote('+-*\=<>%&|', $delimiter); - $operators['='] = '(?<!['.$chars.'])\='; - - return $operators; - } - - /** - * We'll strip whitespace around certain keywords with regular expressions. - * This will prepare the given array by escaping all characters. - * - * @param string[] $keywords - * @param string $delimiter - * - * @return string[] - */ - protected function getKeywordsForRegex(array $keywords, $delimiter = '/') - { - // escape keywords for use in regex - $delimiter = array_fill(0, count($keywords), $delimiter); - $escaped = array_map('preg_quote', $keywords, $delimiter); - - // add word boundaries - array_walk($keywords, function ($value) { - return '\b'.$value.'\b'; - }); - - $keywords = array_combine($keywords, $escaped); - - return $keywords; - } - - /** - * Replaces all occurrences of array['key'] by array.key. - * - * @param string $content - * - * @return string - */ - protected function propertyNotation($content) - { - // PHP only supports $this inside anonymous functions since 5.4 - $minifier = $this; - $keywords = $this->keywordsReserved; - $callback = function ($match) use ($minifier, $keywords) { - $property = trim($minifier->extracted[$match[1]], '\'"'); - - /* - * Check if the property is a reserved keyword. In this context (as - * property of an object literal/array) it shouldn't matter, but IE8 - * freaks out with "Expected identifier". - */ - if (in_array($property, $keywords)) { - return $match[0]; - } - - /* - * See if the property is in a variable-like format (e.g. - * array['key-here'] can't be replaced by array.key-here since '-' - * is not a valid character there. - */ - if (!preg_match('/^'.$minifier::REGEX_VARIABLE.'$/u', $property)) { - return $match[0]; - } - - return '.'.$property; - }; - - /* - * Figure out if previous character is a variable name (of the array - * we want to use property notation on) - this is to make sure - * standalone ['value'] arrays aren't confused for keys-of-an-array. - * We can (and only have to) check the last character, because PHP's - * regex implementation doesn't allow unfixed-length look-behind - * assertions. - */ - preg_match('/(\[[^\]]+\])[^\]]*$/', static::REGEX_VARIABLE, $previousChar); - $previousChar = $previousChar[1]; - - /* - * Make sure word preceding the ['value'] is not a keyword, e.g. - * return['x']. Because -again- PHP's regex implementation doesn't allow - * unfixed-length look-behind assertions, I'm just going to do a lot of - * separate look-behind assertions, one for each keyword. - */ - $keywords = $this->getKeywordsForRegex($keywords); - $keywords = '(?<!'.implode(')(?<!', $keywords).')'; - - return preg_replace_callback('/(?<='.$previousChar.'|\])'.$keywords.'\[\s*(([\'"])[0-9]+\\2)\s*\]/u', $callback, $content); - } - - /** - * Replaces true & false by !0 and !1. - * - * @param string $content - * - * @return string - */ - protected function shortenBools($content) - { - /* - * 'true' or 'false' could be used as property names (which may be - * followed by whitespace) - we must not replace those! - * Since PHP doesn't allow variable-length (to account for the - * whitespace) lookbehind assertions, I need to capture the leading - * character and check if it's a `.` - */ - $callback = function ($match) { - if (trim($match[1]) === '.') { - return $match[0]; - } - - return $match[1].($match[2] === 'true' ? '!0' : '!1'); - }; - $content = preg_replace_callback('/(^|.\s*)\b(true|false)\b(?!:)/', $callback, $content); - - // for(;;) is exactly the same as while(true), but shorter :) - $content = preg_replace('/\bwhile\(!0\){/', 'for(;;){', $content); - - // now make sure we didn't turn any do ... while(true) into do ... for(;;) - preg_match_all('/\bdo\b/', $content, $dos, PREG_OFFSET_CAPTURE | PREG_SET_ORDER); - - // go backward to make sure positional offsets aren't altered when $content changes - $dos = array_reverse($dos); - foreach ($dos as $do) { - $offsetDo = $do[0][1]; - - // find all `while` (now `for`) following `do`: one of those must be - // associated with the `do` and be turned back into `while` - preg_match_all('/\bfor\(;;\)/', $content, $whiles, PREG_OFFSET_CAPTURE | PREG_SET_ORDER, $offsetDo); - foreach ($whiles as $while) { - $offsetWhile = $while[0][1]; - - $open = substr_count($content, '{', $offsetDo, $offsetWhile - $offsetDo); - $close = substr_count($content, '}', $offsetDo, $offsetWhile - $offsetDo); - if ($open === $close) { - // only restore `while` if amount of `{` and `}` are the same; - // otherwise, that `for` isn't associated with this `do` - $content = substr_replace($content, 'while(!0)', $offsetWhile, strlen('for(;;)')); - break; - } - } - } - - return $content; - } -} diff --git a/assets/php/vendor/matthiasmullie/minify/src/Minify.php b/assets/php/vendor/matthiasmullie/minify/src/Minify.php deleted file mode 100755 index ac87292..0000000 --- a/assets/php/vendor/matthiasmullie/minify/src/Minify.php +++ /dev/null @@ -1,454 +0,0 @@ -<?php -/** - * Abstract minifier class - * - * Please report bugs on https://github.com/matthiasmullie/minify/issues - * - * @author Matthias Mullie <minify@mullie.eu> - * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved - * @license MIT License - */ -namespace MatthiasMullie\Minify; - -use MatthiasMullie\Minify\Exceptions\IOException; -use Psr\Cache\CacheItemInterface; - -/** - * Abstract minifier class. - * - * Please report bugs on https://github.com/matthiasmullie/minify/issues - * - * @package Minify - * @author Matthias Mullie <minify@mullie.eu> - * @copyright Copyright (c) 2012, Matthias Mullie. All rights reserved - * @license MIT License - */ -abstract class Minify -{ - /** - * The data to be minified. - * - * @var string[] - */ - protected $data = array(); - - /** - * Array of patterns to match. - * - * @var string[] - */ - protected $patterns = array(); - - /** - * This array will hold content of strings and regular expressions that have - * been extracted from the JS source code, so we can reliably match "code", - * without having to worry about potential "code-like" characters inside. - * - * @var string[] - */ - public $extracted = array(); - - /** - * Init the minify class - optionally, code may be passed along already. - */ - public function __construct(/* $data = null, ... */) - { - // it's possible to add the source through the constructor as well ;) - if (func_num_args()) { - call_user_func_array(array($this, 'add'), func_get_args()); - } - } - - /** - * Add a file or straight-up code to be minified. - * - * @param string|string[] $data - * - * @return static - */ - public function add($data /* $data = null, ... */) - { - // bogus "usage" of parameter $data: scrutinizer warns this variable is - // not used (we're using func_get_args instead to support overloading), - // but it still needs to be defined because it makes no sense to have - // this function without argument :) - $args = array($data) + func_get_args(); - - // this method can be overloaded - foreach ($args as $data) { - if (is_array($data)) { - call_user_func_array(array($this, 'add'), $data); - continue; - } - - // redefine var - $data = (string) $data; - - // load data - $value = $this->load($data); - $key = ($data != $value) ? $data : count($this->data); - - // replace CR linefeeds etc. - // @see https://github.com/matthiasmullie/minify/pull/139 - $value = str_replace(array("\r\n", "\r"), "\n", $value); - - // store data - $this->data[$key] = $value; - } - - return $this; - } - - /** - * Minify the data & (optionally) saves it to a file. - * - * @param string[optional] $path Path to write the data to - * - * @return string The minified data - */ - public function minify($path = null) - { - $content = $this->execute($path); - - // save to path - if ($path !== null) { - $this->save($content, $path); - } - - return $content; - } - - /** - * Minify & gzip the data & (optionally) saves it to a file. - * - * @param string[optional] $path Path to write the data to - * @param int[optional] $level Compression level, from 0 to 9 - * - * @return string The minified & gzipped data - */ - public function gzip($path = null, $level = 9) - { - $content = $this->execute($path); - $content = gzencode($content, $level, FORCE_GZIP); - - // save to path - if ($path !== null) { - $this->save($content, $path); - } - - return $content; - } - - /** - * Minify the data & write it to a CacheItemInterface object. - * - * @param CacheItemInterface $item Cache item to write the data to - * - * @return CacheItemInterface Cache item with the minifier data - */ - public function cache(CacheItemInterface $item) - { - $content = $this->execute(); - $item->set($content); - - return $item; - } - - /** - * Minify the data. - * - * @param string[optional] $path Path to write the data to - * - * @return string The minified data - */ - abstract public function execute($path = null); - - /** - * Load data. - * - * @param string $data Either a path to a file or the content itself - * - * @return string - */ - protected function load($data) - { - // check if the data is a file - if ($this->canImportFile($data)) { - $data = file_get_contents($data); - - // strip BOM, if any - if (substr($data, 0, 3) == "\xef\xbb\xbf") { - $data = substr($data, 3); - } - } - - return $data; - } - - /** - * Save to file. - * - * @param string $content The minified data - * @param string $path The path to save the minified data to - * - * @throws IOException - */ - protected function save($content, $path) - { - $handler = $this->openFileForWriting($path); - - $this->writeToFile($handler, $content); - - @fclose($handler); - } - - /** - * Register a pattern to execute against the source content. - * - * @param string $pattern PCRE pattern - * @param string|callable $replacement Replacement value for matched pattern - */ - protected function registerPattern($pattern, $replacement = '') - { - // study the pattern, we'll execute it more than once - $pattern .= 'S'; - - $this->patterns[] = array($pattern, $replacement); - } - - /** - * We can't "just" run some regular expressions against JavaScript: it's a - * complex language. E.g. having an occurrence of // xyz would be a comment, - * unless it's used within a string. Of you could have something that looks - * like a 'string', but inside a comment. - * The only way to accurately replace these pieces is to traverse the JS one - * character at a time and try to find whatever starts first. - * - * @param string $content The content to replace patterns in - * - * @return string The (manipulated) content - */ - protected function replace($content) - { - $processed = ''; - $positions = array_fill(0, count($this->patterns), -1); - $matches = array(); - - while ($content) { - // find first match for all patterns - foreach ($this->patterns as $i => $pattern) { - list($pattern, $replacement) = $pattern; - - // no need to re-run matches that are still in the part of the - // content that hasn't been processed - if ($positions[$i] >= 0) { - continue; - } - - $match = null; - if (preg_match($pattern, $content, $match, PREG_OFFSET_CAPTURE)) { - $matches[$i] = $match; - - // we'll store the match position as well; that way, we - // don't have to redo all preg_matches after changing only - // the first (we'll still know where those others are) - $positions[$i] = $match[0][1]; - } else { - // if the pattern couldn't be matched, there's no point in - // executing it again in later runs on this same content; - // ignore this one until we reach end of content - unset($matches[$i]); - $positions[$i] = strlen($content); - } - } - - // no more matches to find: everything's been processed, break out - if (!$matches) { - $processed .= $content; - break; - } - - // see which of the patterns actually found the first thing (we'll - // only want to execute that one, since we're unsure if what the - // other found was not inside what the first found) - $discardLength = min($positions); - $firstPattern = array_search($discardLength, $positions); - $match = $matches[$firstPattern][0][0]; - - // execute the pattern that matches earliest in the content string - list($pattern, $replacement) = $this->patterns[$firstPattern]; - $replacement = $this->replacePattern($pattern, $replacement, $content); - - // figure out which part of the string was unmatched; that's the - // part we'll execute the patterns on again next - $content = (string) substr($content, $discardLength); - $unmatched = (string) substr($content, strpos($content, $match) + strlen($match)); - - // move the replaced part to $processed and prepare $content to - // again match batch of patterns against - $processed .= substr($replacement, 0, strlen($replacement) - strlen($unmatched)); - $content = $unmatched; - - // first match has been replaced & that content is to be left alone, - // the next matches will start after this replacement, so we should - // fix their offsets - foreach ($positions as $i => $position) { - $positions[$i] -= $discardLength + strlen($match); - } - } - - return $processed; - } - - /** - * This is where a pattern is matched against $content and the matches - * are replaced by their respective value. - * This function will be called plenty of times, where $content will always - * move up 1 character. - * - * @param string $pattern Pattern to match - * @param string|callable $replacement Replacement value - * @param string $content Content to match pattern against - * - * @return string - */ - protected function replacePattern($pattern, $replacement, $content) - { - if (is_callable($replacement)) { - return preg_replace_callback($pattern, $replacement, $content, 1, $count); - } else { - return preg_replace($pattern, $replacement, $content, 1, $count); - } - } - - /** - * Strings are a pattern we need to match, in order to ignore potential - * code-like content inside them, but we just want all of the string - * content to remain untouched. - * - * This method will replace all string content with simple STRING# - * placeholder text, so we've rid all strings from characters that may be - * misinterpreted. Original string content will be saved in $this->extracted - * and after doing all other minifying, we can restore the original content - * via restoreStrings(). - * - * @param string[optional] $chars - * @param string[optional] $placeholderPrefix - */ - protected function extractStrings($chars = '\'"', $placeholderPrefix = '') - { - // PHP only supports $this inside anonymous functions since 5.4 - $minifier = $this; - $callback = function ($match) use ($minifier, $placeholderPrefix) { - // check the second index here, because the first always contains a quote - if ($match[2] === '') { - /* - * Empty strings need no placeholder; they can't be confused for - * anything else anyway. - * But we still needed to match them, for the extraction routine - * to skip over this particular string. - */ - return $match[0]; - } - - $count = count($minifier->extracted); - $placeholder = $match[1].$placeholderPrefix.$count.$match[1]; - $minifier->extracted[$placeholder] = $match[1].$match[2].$match[1]; - - return $placeholder; - }; - - /* - * The \\ messiness explained: - * * Don't count ' or " as end-of-string if it's escaped (has backslash - * in front of it) - * * Unless... that backslash itself is escaped (another leading slash), - * in which case it's no longer escaping the ' or " - * * So there can be either no backslash, or an even number - * * multiply all of that times 4, to account for the escaping that has - * to be done to pass the backslash into the PHP string without it being - * considered as escape-char (times 2) and to get it in the regex, - * escaped (times 2) - */ - $this->registerPattern('/(['.$chars.'])(.*?(?<!\\\\)(\\\\\\\\)*+)\\1/s', $callback); - } - - /** - * This method will restore all extracted data (strings, regexes) that were - * replaced with placeholder text in extract*(). The original content was - * saved in $this->extracted. - * - * @param string $content - * - * @return string - */ - protected function restoreExtractedData($content) - { - if (!$this->extracted) { - // nothing was extracted, nothing to restore - return $content; - } - - $content = strtr($content, $this->extracted); - - $this->extracted = array(); - - return $content; - } - - /** - * Check if the path is a regular file and can be read. - * - * @param string $path - * - * @return bool - */ - protected function canImportFile($path) - { - $parsed = parse_url($path); - if ( - // file is elsewhere - isset($parsed['host']) || - // file responds to queries (may change, or need to bypass cache) - isset($parsed['query']) - ) { - return false; - } - - return strlen($path) < PHP_MAXPATHLEN && @is_file($path) && is_readable($path); - } - - /** - * Attempts to open file specified by $path for writing. - * - * @param string $path The path to the file - * - * @return resource Specifier for the target file - * - * @throws IOException - */ - protected function openFileForWriting($path) - { - if (($handler = @fopen($path, 'w')) === false) { - throw new IOException('The file "'.$path.'" could not be opened for writing. Check if PHP has enough permissions.'); - } - - return $handler; - } - - /** - * Attempts to write $content to the file specified by $handler. $path is used for printing exceptions. - * - * @param resource $handler The resource to write to - * @param string $content The content to write - * @param string $path The path to the file (for exception printing only) - * - * @throws IOException - */ - protected function writeToFile($handler, $content, $path = '') - { - if (($result = @fwrite($handler, $content)) === false || ($result < strlen($content))) { - throw new IOException('The file "'.$path.'" could not be written to. Check your disk space and file permissions.'); - } - } -} |