PHP CssMin类代码示例

 /** 
  * minify css and return css link
  * if minify is disabled: return direct css links
  *
  * @return string with html tag
  * @param array $stylesheets with css files
  */
 public function minifycss($stylesheets)
 {
     if (Zend_Registry::get('config')->cache->enable == 1 && Zend_Registry::get('config')->cache->minifycss == 1) {
         // check file
         $target = Zend_Registry::get('config')->pub->path . 'stylesheets/' . Zend_Registry::get('config')->cache->minifiedcssfile;
         $targeturl = 'stylesheets/' . Zend_Registry::get('config')->cache->minifiedcssfile;
         if (file_exists($target)) {
             return "<link rel=\"stylesheet\" media=\"screen, handheld, projection, tv\" href=\"" . $targeturl . "\" />\n";
         }
         // load and minify files
         $all = "";
         foreach ($stylesheets as $css) {
             $csscontent = file_get_contents(Zend_Registry::get('config')->pub->path . $css);
             $csscontent = CssMin::minify($csscontent);
             $all .= $csscontent;
         }
         file_put_contents($target, $all);
         return "<link rel=\"stylesheet\" media=\"screen, handheld, projection, tv\" href=\"" . $targeturl . "\" />\n";
     } else {
         $ret = "";
         foreach ($stylesheets as $css) {
             $ret = $ret . "<link rel=\"stylesheet\" media=\"screen, handheld, projection, tv\" href=\"" . $css . "\" />\n";
         }
         return $ret;
     }
 }

 /**
  *
  */
 public function load($resource, $type = null)
 {
     $publishPath = $this->pathHelper->joinPaths($this->assetDirectory, $resource);
     $tmpPath = $this->pathHelper->joinPaths(sys_get_temp_dir(), $resource);
     $fs = $this->getFilesystem();
     if ($this->debugMode) {
         $fs->dumpFile($tmpPath, "/* --- composition: {$resource} ---*/");
     }
     $tmpFile = fopen($tmpPath, "a");
     foreach ($this->compositions[$resource] as $asset) {
         $path = $this->locator->locate($asset);
         switch ($type) {
             case 'css':
                 if (preg_match('/\\.min\\.css/', $asset)) {
                     $content = file_get_contents($path);
                 } else {
                     $content = \CssMin::minify(file_get_contents($path));
                 }
                 break;
             default:
                 $content = file_get_contents($path);
         }
         if ($this->debugMode) {
             fwrite($tmpFile, "\n\n/* --- asset: {$asset} ({$path}) ---*/\n\n" . $content);
         }
     }
     fclose($tmpFile);
     if ($this->publishMode && $resource !== null) {
         $fs->copy($tmpPath, $publishPath);
     }
     return $tmpPath;
 }

 /**
  * Implements {@link aCssParserPlugin::parse()}.
  * 
  * @param integer $index Current index
  * @param string $char Current char
  * @param string $previousChar Previous char
  * @return mixed TRUE will break the processing; FALSE continue with the next plugin; integer set a new index and break the processing
  */
 public function parse($index, $char, $previousChar, $state)
 {
     if ($char === "@" && $state === "T_DOCUMENT" && strtolower(substr($this->parser->getSource(), $index, 7)) === "@import") {
         $this->parser->pushState("T_AT_IMPORT");
         $this->parser->clearBuffer();
         return $index + 7;
     } elseif (($char === ";" || $char === "\n") && $state === "T_AT_IMPORT") {
         $this->buffer = $this->parser->getAndClearBuffer(";");
         $pos = false;
         foreach (array(")", "\"", "'") as $needle) {
             if (($pos = strrpos($this->buffer, $needle)) !== false) {
                 break;
             }
         }
         $import = substr($this->buffer, 0, $pos + 1);
         if (stripos($import, "url(") === 0) {
             $import = substr($import, 4, -1);
         }
         $import = trim($import, " \t\n\r\v'\"");
         $mediaTypes = array_filter(array_map("trim", explode(",", trim(substr($this->buffer, $pos + 1), " \t\n\r\v{"))));
         if ($pos) {
             $this->parser->appendToken(new CssAtImportToken($import, $mediaTypes));
         } else {
             CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Invalid @import at-rule syntax", $this->parser->buffer));
         }
         $this->parser->popState();
     } else {
         return false;
     }
     return true;
 }

 public function __invoke($file, $minify = null)
 {
     if (!is_file($this->getOptions()->getPublicDir() . $file)) {
         throw new \InvalidArgumentException('File "' . $this->getOptions()->getPublicDir() . $file . '" not found.');
     }
     $less = new \lessc();
     $info = pathinfo($file);
     $newFile = $this->getOptions()->getDestinationDir() . $info['filename'] . '.' . filemtime($this->getOptions()->getPublicDir() . $file) . '.css';
     $_file = $this->getOptions()->getPublicDir() . $newFile;
     if (!is_file($_file)) {
         $globPattern = $this->getOptions()->getPublicDir() . $this->getOptions()->getDestinationDir() . $info['filename'] . '.*.css';
         foreach (Glob::glob($globPattern, Glob::GLOB_BRACE) as $match) {
             if (preg_match("/^" . $info['filename'] . "\\.[0-9]{10}\\.css\$/", basename($match))) {
                 unlink($match);
             }
         }
         $compiledFile = new \SplFileObject($_file, 'w');
         $result = $less->compileFile($this->getOptions()->getPublicDir() . $file);
         if (is_null($minify) && $this->getOptions()->getMinify() || $minify === true) {
             $result = \CssMin::minify($result);
         }
         $compiledFile->fwrite($result);
     }
     return $newFile;
 }

 function prepare($source, $min = true)
 {
     if ($min) {
         $source = \CssMin::minify($source);
     }
     return trim($source);
 }

 /**
  *
  */
 public function load($resource, $type = null)
 {
     $publishPath = $this->pathHelper->joinPaths($this->assetDirectory, $resource);
     $tmpPath = $this->pathHelper->joinPaths(sys_get_temp_dir(), $resource);
     $path = $this->locator->locate($resource);
     $fs = $this->getFilesystem();
     $fs->dumpFile($tmpPath, null);
     switch ($type) {
         case 'css':
             // minify only if it isnt already minified
             if (preg_match('/\\.min\\.css/', $resource)) {
                 $content = file_get_contents($path);
             } else {
                 $content = \CssMin::minify(file_get_contents($path));
             }
             break;
         default:
             $content = file_get_contents($path);
     }
     file_put_contents($tmpPath, $content);
     if ($this->publishMode && $resource !== null) {
         $fs->copy($tmpPath, $publishPath);
     }
     return $tmpPath;
 }

/**
 * Apply CssMin to $content.
 *
 * @param string $filename target filename
 * @param string $content Content to filter.
 * @throws Exception
 * @return string
 */
	public function output($filename, $content) {
		App::import('Vendor', 'cssmin', array('file' => $this->_settings['path']));
		if (!class_exists('CssMin')) {
			throw new Exception(sprintf('Cannot not load filter class "%s".', 'CssMin'));
		}
		return CssMin::minify($content);
	}

 /**
  * Constructer.
  * 
  * Creates instances of {@link aCssMinifierFilter filters} and {@link aCssMinifierPlugin plugins}.
  * 
  * @param string $source CSS source [optional]
  * @param array $filters Filter configuration [optional]
  * @param array $plugins Plugin configuration [optional]
  * @return void
  */
 public function __construct($source = null, array $filters = null, array $plugins = null)
 {
     $filters = array_merge(array("ImportImports" => false, "RemoveComments" => true, "RemoveEmptyRulesets" => true, "RemoveEmptyAtBlocks" => true, "ConvertLevel3Properties" => false, "ConvertLevel3AtKeyframes" => false, "Variables" => true, "RemoveLastDelarationSemiColon" => true), is_array($filters) ? $filters : array());
     $plugins = array_merge(array("Variables" => true, "ConvertFontWeight" => false, "ConvertHslColors" => false, "ConvertRgbColors" => false, "ConvertNamedColors" => false, "CompressColorValues" => false, "CompressUnitValues" => false, "CompressExpressionValues" => false), is_array($plugins) ? $plugins : array());
     // Filters
     foreach ($filters as $name => $config) {
         if ($config !== false) {
             $class = "Css" . $name . "MinifierFilter";
             $config = is_array($config) ? $config : array();
             if (class_exists($class)) {
                 $this->filters[] = new $class($this, $config);
             } else {
                 CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": The filter <code>" . $name . "</code> with the class name <code>" . $class . "</code> was not found"));
             }
         }
     }
     // Plugins
     foreach ($plugins as $name => $config) {
         if ($config !== false) {
             $class = "Css" . $name . "MinifierPlugin";
             $config = is_array($config) ? $config : array();
             if (class_exists($class)) {
                 $this->plugins[] = new $class($this, $config);
             } else {
                 CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": The plugin <code>" . $name . "</code> with the class name <code>" . $class . "</code> was not found"));
             }
         }
     }
     // --
     if (!is_null($source)) {
         $this->minify($source);
     }
 }

 public static function minifyCss($cssList, $concat = false)
 {
     $websiteHelper = Zend_Controller_Action_HelperBroker::getExistingHelper('website');
     $cacheHelper = Zend_Controller_Action_HelperBroker::getExistingHelper('cache');
     if (null === ($hashStack = $cacheHelper->load(strtolower(__CLASS__), ''))) {
         $hashStack = array();
     }
     $container = $cssList->getContainer();
     foreach ($container->getArrayCopy() as $css) {
         if (preg_match('/^https?:\\/\\//', $css->href) != false && strpos($css->href, $websiteHelper->getUrl()) !== 0) {
             continue;
         }
         $path = str_replace($websiteHelper->getUrl(), '', $css->href);
         if (!is_file($websiteHelper->getPath() . $path) || !file_exists($websiteHelper->getPath() . $path)) {
             continue;
         }
         $hash = sha1_file($websiteHelper->getPath() . $path);
         $name = Tools_Filesystem_Tools::basename($path);
         if (!$hash) {
             continue;
         }
         if (!isset($hashStack[$path]) || $hashStack[$path]['hash'] !== $hash) {
             $compressor = new CssMin();
             $cssContent = Tools_Filesystem_Tools::getFile($path);
             $cssContent = preg_replace('/url\\([\'"]?([^)\'"]*)[\'"]?\\)/', 'url("../' . dirname($path) . DIRECTORY_SEPARATOR . '${1}")', $cssContent);
             $hashStack[$path] = array('hash' => $hash, 'content' => $compressor->run($cssContent));
             Tools_Filesystem_Tools::saveFile($websiteHelper->getPath() . $websiteHelper->getTmp() . $hash . '.css', $hashStack[$path]['content']);
             unset($cssContent);
         }
         if (!$concat) {
             $css->href = $websiteHelper->getUrl() . $websiteHelper->getTmp() . $hash . '.css?' . $name;
         } else {
             $concatCss = isset($concatCss) ? $concatCss . PHP_EOL . "/* {$path} */" . PHP_EOL . $hashStack[$path]['content'] : "/* {$path} */" . PHP_EOL . $hashStack[$path]['content'];
         }
     }
     if (isset($concatCss) && !empty($concatCss)) {
         $cname = sha1($concatCss) . '.concat.min.css';
         $concatPath = $websiteHelper->getPath() . $websiteHelper->getTmp() . $cname;
         if (!file_exists($concatPath) || sha1_file($concatPath) !== sha1($concatCss)) {
             Tools_Filesystem_Tools::saveFile($concatPath, $concatCss);
         }
         $cssList->setStylesheet($websiteHelper->getUrl() . $websiteHelper->getTmp() . $cname);
     }
     $cacheHelper->save(strtolower(__CLASS__), $hashStack, '', array(), Helpers_Action_Cache::CACHE_LONG);
     return $cssList;
 }

 /**
  */
 public function apply($in, $params = [])
 {
     require_php_lib('cssmin');
     if (!class_exists('\\CssMin')) {
         throw new Exception('Assets: class \\CssMin not found');
         return $in;
     }
     return \CssMin::minify($in);
 }

 /**
  * New resource file update handler.
  *
  * @param string $resource  Resource full path
  * @param string $extension Resource extension
  * @param string $content   Compiled output resource content
  */
 public function renderer($resource, &$extension, &$content)
 {
     // If CSS resource has been updated
     if ($extension === 'css') {
         // Read updated CSS resource file and compile it
         $content = \CssMin::minify($content);
     } elseif ($extension === 'js') {
         $content = \JShrink\Minifier::minify($content);
     }
 }

 /**
  * Implements {@link aCssParserPlugin::parse()}.
  * 
  * @param integer $index Current index
  * @param string $char Current char
  * @param string $previousChar Previous char
  * @return mixed TRUE will break the processing; FALSE continue with the next plugin; integer set a new index and break the processing
  */
 public function parse($index, $char, $previousChar, $state)
 {
     // Start of Ruleset and selectors
     if ($char === "," && ($state === "T_DOCUMENT" || $state === "T_AT_MEDIA" || $state === "T_RULESET::SELECTORS")) {
         if ($state !== "T_RULESET::SELECTORS") {
             $this->parser->pushState("T_RULESET::SELECTORS");
         }
         $this->selectors[] = $this->parser->getAndClearBuffer(",{");
     } elseif ($char === "{" && ($state === "T_DOCUMENT" || $state === "T_AT_MEDIA" || $state === "T_RULESET::SELECTORS")) {
         if ($this->parser->getBuffer() !== "") {
             $this->selectors[] = $this->parser->getAndClearBuffer(",{");
             if ($state == "T_RULESET::SELECTORS") {
                 $this->parser->popState();
             }
             $this->parser->pushState("T_RULESET");
             $this->parser->appendToken(new CssRulesetStartToken($this->selectors));
             $this->selectors = array();
         }
     } elseif ($char === ":" && $state === "T_RULESET") {
         $this->parser->pushState("T_RULESET_DECLARATION");
         $this->buffer = $this->parser->getAndClearBuffer(":;", true);
     } elseif ($char === ":" && $state === "T_RULESET_DECLARATION") {
         // Ignore Internet Explorer filter declarations
         if ($this->buffer === "filter") {
             return false;
         }
         CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": Unterminated declaration", $this->buffer . ":" . $this->parser->getBuffer() . "_"));
     } elseif (($char === ";" || $char === "}") && $state === "T_RULESET_DECLARATION") {
         $value = $this->parser->getAndClearBuffer(";}");
         if (strtolower(substr($value, -10, 10)) === "!important") {
             $value = trim(substr($value, 0, -10));
             $isImportant = true;
         } else {
             $isImportant = false;
         }
         $this->parser->popState();
         $this->parser->appendToken(new CssRulesetDeclarationToken($this->buffer, $value, $this->parser->getMediaTypes(), $isImportant));
         // Declaration ends with a right curly brace; so we have to end the ruleset
         if ($char === "}") {
             $this->parser->appendToken(new CssRulesetEndToken());
             $this->parser->popState();
         }
         $this->buffer = "";
     } elseif ($char === "}" && $state === "T_RULESET") {
         $this->parser->popState();
         $this->parser->clearBuffer();
         $this->parser->appendToken(new CssRulesetEndToken());
         $this->buffer = "";
         $this->selectors = array();
     } else {
         return false;
     }
     return true;
 }

 public function init($cssData)
 {
     $this->parsedCSS = CssMin::parse($cssData, $plugins);
     $this->countSelectors();
     if ($this->selCount > $this->conf['css.']['scriptmergerBless.']['threshold'] && isset($this->conf['css.']['scriptmergerBless.']['activate']) && $this->conf['css.']['scriptmergerBless.']['activate'] == 1) {
         $this->split();
     } else {
         $this->cssFiles[] = $cssData;
     }
     return array_reverse($this->cssFiles);
 }

 /**
  * Implements {@link aCssMinifierFilter::filter()}.
  * 
  * @param array $tokens Array of objects of type aCssToken
  * @return integer Count of added, changed or removed tokens; a return value large than 0 will rebuild the array
  */
 public function apply(array &$tokens)
 {
     $variables = array();
     $defaultMediaTypes = array("all");
     $mediaTypes = array();
     $remove = array();
     for ($i = 0, $l = count($tokens); $i < $l; $i++) {
         // @variables at-rule block found
         if (get_class($tokens[$i]) === "CssAtVariablesStartToken") {
             $remove[] = $i;
             $mediaTypes = count($tokens[$i]->MediaTypes) == 0 ? $defaultMediaTypes : $tokens[$i]->MediaTypes;
             foreach ($mediaTypes as $mediaType) {
                 if (!isset($variables[$mediaType])) {
                     $variables[$mediaType] = array();
                 }
             }
             // Read the variable declaration tokens
             for ($i = $i; $i < $l; $i++) {
                 // Found a variable declaration => read the variable values
                 if (get_class($tokens[$i]) === "CssAtVariablesDeclarationToken") {
                     foreach ($mediaTypes as $mediaType) {
                         $variables[$mediaType][$tokens[$i]->Property] = $tokens[$i]->Value;
                     }
                     $remove[] = $i;
                 } elseif (get_class($tokens[$i]) === "CssAtVariablesEndToken") {
                     $remove[] = $i;
                     break;
                 }
             }
         }
     }
     // Variables in @variables at-rule blocks
     foreach ($variables as $mediaType => $null) {
         foreach ($variables[$mediaType] as $variable => $value) {
             // If a var() statement in a variable value found...
             if (stripos($value, "var") !== false && preg_match_all("/var\\((.+)\\)/iSU", $value, $m)) {
                 // ... then replace the var() statement with the variable values.
                 for ($i = 0, $l = count($m[0]); $i < $l; $i++) {
                     $variables[$mediaType][$variable] = str_replace($m[0][$i], isset($variables[$mediaType][$m[1][$i]]) ? $variables[$mediaType][$m[1][$i]] : "", $variables[$mediaType][$variable]);
                 }
             }
         }
     }
     // Remove the complete @variables at-rule block
     foreach ($remove as $i) {
         $tokens[$i] = null;
     }
     if (!($plugin = $this->minifier->getPlugin("CssVariablesMinifierPlugin"))) {
         CssMin::triggerError(new CssError(__FILE__, __LINE__, __METHOD__ . ": The plugin <code>CssVariablesMinifierPlugin</code> was not found but is required for <code>" . __CLASS__ . "</code>"));
     } else {
         $plugin->setVariables($variables);
     }
     return count($remove);
 }

 public function filterDump(AssetInterface $asset)
 {
     $filters = $this->filters;
     $plugins = $this->plugins;
     if (isset($filters['ImportImports']) && true === $filters['ImportImports']) {
         if ($dir = $asset->getSourceDirectory()) {
             $filters['ImportImports'] = array('BasePath' => $dir);
         } else {
             unset($filters['ImportImports']);
         }
     }
     $asset->setContent(\CssMin::minify($asset->getContent(), $filters, $plugins));
 }