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-rwxr-xr-xassets/php/vendor/matthiasmullie/minify/src/CSS.php736
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diff --git a/assets/php/vendor/matthiasmullie/minify/src/CSS.php b/assets/php/vendor/matthiasmullie/minify/src/CSS.php
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@@ -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);
- }
-}