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<?php /** * CssMin - A (simple) css minifier with benefits * * -- * Copyright (c) 2011 Joe Scylla <joe.scylla@gmail.com> * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * -- * * @package CssMin * @link http://code.google.com/p/cssmin/ * @author Joe Scylla <joe.scylla@gmail.com> * @copyright 2008 - 2011 Joe Scylla <joe.scylla@gmail.com> * @license http://opensource.org/licenses/mit-license.php MIT License * @version 3.0.1 */ /** * Abstract definition of a CSS token class. * * Every token has to extend this class. * * @package CssMin/Tokens * @link http://code.google.com/p/cssmin/ * @author Joe Scylla <joe.scylla@gmail.com> * @copyright 2008 - 2011 Joe Scylla <joe.scylla@gmail.com> * @license http://opensource.org/licenses/mit-license.php MIT License * @version 3.0.1 */ abstract class aCssToken { /** * Returns the token as string. * * @return string */ abstract public function __toString(); } /** * Abstract definition of a for a ruleset start token. * * @package CssMin/Tokens * @link http://code.google.com/p/cssmin/ * @author Joe Scylla <joe.scylla@gmail.com> * @copyright 2008 - 2011 Joe Scylla <joe.scylla@gmail.com> * @license http://opensource.org/licenses/mit-license.php MIT License * @version 3.0.1 */ abstract class aCssRulesetStartToken extends aCssToken { } /** * Abstract definition of a for ruleset end token. * * @package CssMin/Tokens * @link http://code.google.com/p/cssmin/ * @author Joe Scylla <joe.scylla@gmail.com> * @copyright 2008 - 2011 Joe Scylla <joe.scylla@gmail.com> * @license http://opensource.org/licenses/mit-license.php MIT License * @version 3.0.1 */ abstract class aCssRulesetEndToken extends aCssToken { /** * Implements {@link aCssToken::__toString()}. * * @return string */ public function __toString() { return "}"; } } /** * Abstract definition of a parser plugin. * * Every parser plugin have to extend this class. A parser plugin contains the logic to parse one or aspects of a * stylesheet. * * @package CssMin/Parser/Plugins * @link http://code.google.com/p/cssmin/ * @author Joe Scylla <joe.scylla@gmail.com> * @copyright 2008 - 2011 Joe Scylla <joe.scylla@gmail.com> * @license http://opensource.org/licenses/mit-license.php MIT License * @version 3.0.1 */ abstract class aCssParserPlugin { /** * Plugin configuration. * * @var array */ protected $configuration = array(); /** * The CssParser of the plugin. * * @var CssParser */ protected $parser = null; /** * Plugin buffer. * * @var string */ protected $buffer = ""; /** * Constructor. * * @param CssParser $parser The CssParser object of this plugin. * @param array $configuration Plugin configuration [optional] * @return void */ public function __construct(CssParser $parser, array $configuration = null) { $this->configuration = $configuration; $this->parser = $parser; } /** * Returns the array of chars triggering the parser plugin. * * @return array */ abstract public function getTriggerChars(); /** * Returns the array of states triggering the parser plugin or FALSE if every state will trigger the parser plugin. * * @return array */ abstract public function getTriggerStates(); /** * Parser routine of the plugin. * * @param integer $index Current index * @param string $char Current char * @param string $previousChar Previous char * @return mixed TRUE will break the processing; FALSE continue with the next plugin; integer set a new index and break the processing */ abstract public function parse($index, $char, $previousChar, $state); } /** * Abstract definition of a minifier plugin class. * * Minifier plugin process the parsed tokens one by one to apply changes to the token. Every minifier plugin has to * extend this class. * * @package CssMin/Minifier/Plugins * @link http://code.google.com/p/cssmin/ * @author Joe Scylla <joe.scylla@gmail.com> * @copyright 2008 - 2011 Joe Scylla <joe.scylla@gmail.com> * @license http://opensource.org/licenses/mit-license.php MIT License * @version 3.0.1 */ abstract class aCssMinifierPlugin { /** * Plugin configuration. * * @var array */ protected $configuration = array(); /** * The CssMinifier of the plugin. * * @var CssMinifier */ protected $minifier = null; /** * Constructor. * * @param CssMinifier $minifier The CssMinifier object of this plugin. * @param array $configuration Plugin configuration [optional] * @return void */ public function __construct(CssMinifier $minifier, array $configuration = array()) { $this->configuration = $configuration; $this->minifier = $minifier; } /** * Apply the plugin to the token. * * @param aCssToken $token Token to process * @return boolean Return TRUE to break the processing of this token; FALSE to continue */ abstract public function apply(aCssToken &$token); /** * -- * * @return array */ abstract public function getTriggerTokens(); } /** * Abstract definition of a minifier filter class. * * Minifier filters allows a pre-processing of the parsed token to add, edit or delete tokens. Every minifier filter * has to extend this class. * * @package CssMin/Minifier/Filters * @link http://code.google.com/p/cssmin/ * @author Joe Scylla <joe.scylla@gmail.com> * @copyright 2008 - 2011 Joe Scylla <joe.scylla@gmail.com> * @license http://opensource.org/licenses/mit-license.php MIT License * @version 3.0.1 */ abstract class aCssMinifierFilter { /** * Filter configuration. * * @var array */ protected $configuration = array(); /** * The CssMinifier of the filter. * * @var CssMinifier */ protected $minifier = null; /** * Constructor. * * @param CssMinifier $minifier The CssMinifier object of this plugin. * @param array $configuration Filter configuration [optional] * @return void */ public function __construct(CssMinifier $minifier, array $configuration = array()) { $this->configuration = $configuration; $this->minifier = $minifier; } /** * Filter the tokens. * * @param array $tokens Array of objects of type aCssToken * @return integer Count of added, changed or removed tokens; a return value large than 0 will rebuild the array */ abstract public function apply(array &$tokens); } /** * Abstract formatter definition. * * Every formatter have to extend this class. * * @package CssMin/Formatter * @link http://code.google.com/p/cssmin/ * @author Joe Scylla <joe.scylla@gmail.com> * @copyright 2008 - 2011 Joe Scylla <joe.scylla@gmail.com> * @license ht