1369 lines
		
	
	
		
			40 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
			
		
		
	
	
			1369 lines
		
	
	
		
			40 KiB
		
	
	
	
		
			PHP
		
	
	
	
	
	
| <?php
 | |
| 
 | |
| /**
 | |
|  * CSSTidy - CSS Parser and Optimiser
 | |
|  *
 | |
|  * CSS Parser class
 | |
|  *
 | |
|  * Copyright 2005, 2006, 2007 Florian Schmitz
 | |
|  *
 | |
|  * This file is part of CSSTidy.
 | |
|  *
 | |
|  *   CSSTidy is free software; you can redistribute it and/or modify
 | |
|  *   it under the terms of the GNU Lesser General Public License as published by
 | |
|  *   the Free Software Foundation; either version 2.1 of the License, or
 | |
|  *   (at your option) any later version.
 | |
|  *
 | |
|  *   CSSTidy is distributed in the hope that it will be useful,
 | |
|  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 | |
|  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 | |
|  *   GNU Lesser General Public License for more details.
 | |
|  *
 | |
|  *   You should have received a copy of the GNU Lesser General Public License
 | |
|  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
 | |
|  *
 | |
|  * @license http://opensource.org/licenses/lgpl-license.php GNU Lesser General Public License
 | |
|  * @package csstidy
 | |
|  * @author Florian Schmitz (floele at gmail dot com) 2005-2007
 | |
|  * @author Brett Zamir (brettz9 at yahoo dot com) 2007
 | |
|  * @author Nikolay Matsievsky (speed at webo dot name) 2009-2010
 | |
|  * @author Cedric Morin (cedric at yterium dot com) 2010-2012
 | |
|  * @author Christopher Finke (cfinke at gmail.com) 2012
 | |
|  * @author Mark Scherer (remove $GLOBALS once and for all + PHP5.4 comp) 2012
 | |
|  */
 | |
| 
 | |
| /**
 | |
|  * Defines constants
 | |
|  * @todo //TODO: make them class constants of csstidy
 | |
|  */
 | |
| define('AT_START',         1);
 | |
| define('AT_END',           2);
 | |
| define('SEL_START',        3);
 | |
| define('SEL_END',          4);
 | |
| define('PROPERTY',         5);
 | |
| define('VALUE',            6);
 | |
| define('COMMENT',          7);
 | |
| define('IMPORTANT_COMMENT',8);
 | |
| define('DEFAULT_AT',      41);
 | |
| 
 | |
| /**
 | |
|  * Contains a class for printing CSS code
 | |
|  *
 | |
|  * @version 1.1.0
 | |
|  */
 | |
| require('class.csstidy_print.php');
 | |
| 
 | |
| /**
 | |
|  * Contains a class for optimising CSS code
 | |
|  *
 | |
|  * @version 1.0
 | |
|  */
 | |
| require('class.csstidy_optimise.php');
 | |
| 
 | |
| /**
 | |
|  * CSS Parser class
 | |
|  *
 | |
|  * This class represents a CSS parser which reads CSS code and saves it in an array.
 | |
|  * In opposite to most other CSS parsers, it does not use regular expressions and
 | |
|  * thus has full CSS2 support and a higher reliability.
 | |
|  * Additional to that it applies some optimisations and fixes to the CSS code.
 | |
|  * An online version should be available here: http://cdburnerxp.se/cssparse/css_optimiser.php
 | |
|  * @package csstidy
 | |
|  * @author Florian Schmitz (floele at gmail dot com) 2005-2006
 | |
|  * @version 2.0.1
 | |
|  */
 | |
| class csstidy {
 | |
| 
 | |
| 	/**
 | |
| 	 * Saves the parsed CSS. This array is empty if preserve_css is on.
 | |
| 	 * @var array
 | |
| 	 * @access public
 | |
| 	 */
 | |
| 	public $css = array();
 | |
| 	/**
 | |
| 	 * Saves the parsed CSS (raw)
 | |
| 	 * @var array
 | |
| 	 * @access private
 | |
| 	 */
 | |
| 	public $tokens = array();
 | |
| 	/**
 | |
| 	 * Printer class
 | |
| 	 * @see csstidy_print
 | |
| 	 * @var object
 | |
| 	 * @access public
 | |
| 	 */
 | |
| 	public $print;
 | |
| 	/**
 | |
| 	 * Optimiser class
 | |
| 	 * @see csstidy_optimise
 | |
| 	 * @var object
 | |
| 	 * @access private
 | |
| 	 */
 | |
| 	public $optimise;
 | |
| 	/**
 | |
| 	 * Saves the CSS charset (@charset)
 | |
| 	 * @var string
 | |
| 	 * @access private
 | |
| 	 */
 | |
| 	public $charset = '';
 | |
| 	/**
 | |
| 	 * Saves all @import URLs
 | |
| 	 * @var array
 | |
| 	 * @access private
 | |
| 	 */
 | |
| 	public $import = array();
 | |
| 	/**
 | |
| 	 * Saves the namespace
 | |
| 	 * @var string
 | |
| 	 * @access private
 | |
| 	 */
 | |
| 	public $namespace = '';
 | |
| 	/**
 | |
| 	 * Contains the version of csstidy
 | |
| 	 * @var string
 | |
| 	 * @access private
 | |
| 	 */
 | |
| 	public $version = '1.7.3';
 | |
| 	/**
 | |
| 	 * Stores the settings
 | |
| 	 * @var array
 | |
| 	 * @access private
 | |
| 	 */
 | |
| 	public $settings = array();
 | |
| 	/**
 | |
| 	 * Saves the parser-status.
 | |
| 	 *
 | |
| 	 * Possible values:
 | |
| 	 * - is = in selector
 | |
| 	 * - ip = in property
 | |
| 	 * - iv = in value
 | |
| 	 * - instr = in string (started at " or ' or ( )
 | |
| 	 * - ic = in comment (ignore everything)
 | |
| 	 * - at = in @-block
 | |
| 	 *
 | |
| 	 * @var string
 | |
| 	 * @access private
 | |
| 	 */
 | |
| 	public $status = 'is';
 | |
| 	/**
 | |
| 	 * Saves the current at rule (@media)
 | |
| 	 * @var string
 | |
| 	 * @access private
 | |
| 	 */
 | |
| 	public $at = '';
 | |
| 	/**
 | |
| 	 * Saves the at rule for next selector (during @font-face or other @)
 | |
| 	 * @var string
 | |
| 	 * @access private
 | |
| 	 */
 | |
| 	public $next_selector_at = '';
 | |
| 
 | |
| 	/**
 | |
| 	 * Saves the current selector
 | |
| 	 * @var string
 | |
| 	 * @access private
 | |
| 	 */
 | |
| 	public $selector = '';
 | |
| 	/**
 | |
| 	 * Saves the current property
 | |
| 	 * @var string
 | |
| 	 * @access private
 | |
| 	 */
 | |
| 	public $property = '';
 | |
| 	/**
 | |
| 	 * Saves the position of , in selectors
 | |
| 	 * @var array
 | |
| 	 * @access private
 | |
| 	 */
 | |
| 	public $sel_separate = array();
 | |
| 	/**
 | |
| 	 * Saves the current value
 | |
| 	 * @var string
 | |
| 	 * @access private
 | |
| 	 */
 | |
| 	public $value = '';
 | |
| 	/**
 | |
| 	 * Saves the current sub-value
 | |
| 	 *
 | |
| 	 * Example for a subvalue:
 | |
| 	 * background:url(foo.png) red no-repeat;
 | |
| 	 * "url(foo.png)", "red", and  "no-repeat" are subvalues,
 | |
| 	 * seperated by whitespace
 | |
| 	 * @var string
 | |
| 	 * @access private
 | |
| 	 */
 | |
| 	public $sub_value = '';
 | |
| 	/**
 | |
| 	 * Array which saves all subvalues for a property.
 | |
| 	 * @var array
 | |
| 	 * @see sub_value
 | |
| 	 * @access private
 | |
| 	 */
 | |
| 	public $sub_value_arr = array();
 | |
| 	/**
 | |
| 	 * Saves the stack of characters that opened the current strings
 | |
| 	 * @var array
 | |
| 	 * @access private
 | |
| 	 */
 | |
| 	public $str_char = array();
 | |
| 	public $cur_string = array();
 | |
| 	/**
 | |
| 	 * Status from which the parser switched to ic or instr
 | |
| 	 * @var array
 | |
| 	 * @access private
 | |
| 	 */
 | |
| 	public $from = array();
 | |
| 	/**
 | |
| 	/**
 | |
| 	 * =true if in invalid at-rule
 | |
| 	 * @var bool
 | |
| 	 * @access private
 | |
| 	 */
 | |
| 	public $invalid_at = false;
 | |
| 	/**
 | |
| 	 * =true if something has been added to the current selector
 | |
| 	 * @var bool
 | |
| 	 * @access private
 | |
| 	 */
 | |
| 	public $added = false;
 | |
| 	/**
 | |
| 	 * Array which saves the message log
 | |
| 	 * @var array
 | |
| 	 * @access private
 | |
| 	 */
 | |
| 	public $log = array();
 | |
| 	/**
 | |
| 	 * Saves the line number
 | |
| 	 * @var integer
 | |
| 	 * @access private
 | |
| 	 */
 | |
| 	public $line = 1;
 | |
| 	/**
 | |
| 	 * Marks if we need to leave quotes for a string
 | |
| 	 * @var array
 | |
| 	 * @access private
 | |
| 	 */
 | |
| 	public $quoted_string = array();
 | |
| 
 | |
| 	/**
 | |
| 	 * List of tokens
 | |
| 	 * @var string
 | |
| 	 */
 | |
| 	public $tokens_list = "";
 | |
| 
 | |
| 	/**
 | |
| 	 * Various CSS Data for CSSTidy
 | |
| 	 * @var array
 | |
| 	 */
 | |
| 	public $data = array();
 | |
| 
 | |
| 	/**
 | |
| 	 * Loads standard template and sets default settings
 | |
| 	 * @access private
 | |
| 	 * @version 1.3
 | |
| 	 */
 | |
| 	public function __construct() {
 | |
| 		$data = array();
 | |
| 		include('data.inc.php');
 | |
| 		$this->data = $data;
 | |
| 
 | |
| 		$this->settings['remove_bslash'] = true;
 | |
| 		$this->settings['compress_colors'] = true;
 | |
| 		$this->settings['compress_font-weight'] = true;
 | |
| 		$this->settings['lowercase_s'] = false;
 | |
| 		/*
 | |
| 			1 common shorthands optimization
 | |
| 			2 + font property optimization
 | |
| 			3 + background property optimization
 | |
| 		 */
 | |
| 		$this->settings['optimise_shorthands'] = 1;
 | |
| 		$this->settings['remove_last_;'] = true;
 | |
| 		$this->settings['space_before_important'] = false;
 | |
| 		/* rewrite all properties with low case, better for later gzip OK, safe*/
 | |
| 		$this->settings['case_properties'] = 1;
 | |
| 		/* sort properties in alpabetic order, better for later gzip
 | |
| 		 * but can cause trouble in case of overiding same propertie or using hack
 | |
| 		 */
 | |
| 		$this->settings['sort_properties'] = false;
 | |
| 		/*
 | |
| 			1, 3, 5, etc -- enable sorting selectors inside @media: a{}b{}c{}
 | |
| 			2, 5, 8, etc -- enable sorting selectors inside one CSS declaration: a,b,c{}
 | |
| 			preserve order by default cause it can break functionnality
 | |
| 		 */
 | |
| 		$this->settings['sort_selectors'] = 0;
 | |
| 		/* is dangeroues to be used: CSS is broken sometimes */
 | |
| 		$this->settings['merge_selectors'] = 0;
 | |
| 		/* preserve or not browser hacks */
 | |
| 
 | |
| 		/* Useful to produce a rtl css from a ltr one (or the opposite) */
 | |
| 		$this->settings['reverse_left_and_right'] = 0;
 | |
| 
 | |
| 		$this->settings['discard_invalid_selectors'] = false;
 | |
| 		$this->settings['discard_invalid_properties'] = false;
 | |
| 		$this->settings['css_level'] = 'CSS3.0';
 | |
| 		$this->settings['preserve_css'] = false;
 | |
| 		$this->settings['timestamp'] = false;
 | |
| 		$this->settings['template'] = ''; // say that propertie exist
 | |
| 		$this->set_cfg('template','default'); // call load_template
 | |
| 		$this->optimise = new csstidy_optimise($this);
 | |
| 
 | |
| 		$this->tokens_list = & $this->data['csstidy']['tokens'];
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Get the value of a setting.
 | |
| 	 * @param string $setting
 | |
| 	 * @access public
 | |
| 	 * @return mixed
 | |
| 	 * @version 1.0
 | |
| 	 */
 | |
| 	public function get_cfg($setting) {
 | |
| 		if (isset($this->settings[$setting])) {
 | |
| 			return $this->settings[$setting];
 | |
| 		}
 | |
| 		return false;
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Load a template
 | |
| 	 * @param string $template used by set_cfg to load a template via a configuration setting
 | |
| 	 * @access private
 | |
| 	 * @version 1.4
 | |
| 	 */
 | |
| 	public function _load_template($template) {
 | |
| 		switch ($template) {
 | |
| 			case 'default':
 | |
| 				$this->load_template('default');
 | |
| 				break;
 | |
| 
 | |
| 			case 'highest':
 | |
| 				$this->load_template('highest_compression');
 | |
| 				break;
 | |
| 
 | |
| 			case 'high':
 | |
| 				$this->load_template('high_compression');
 | |
| 				break;
 | |
| 
 | |
| 			case 'low':
 | |
| 				$this->load_template('low_compression');
 | |
| 				break;
 | |
| 
 | |
| 			default:
 | |
| 				$this->load_template($template);
 | |
| 				break;
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Set the value of a setting.
 | |
| 	 * @param string $setting
 | |
| 	 * @param mixed $value
 | |
| 	 * @access public
 | |
| 	 * @return bool
 | |
| 	 * @version 1.0
 | |
| 	 */
 | |
| 	public function set_cfg($setting, $value=null) {
 | |
| 		if (is_array($setting) && $value === null) {
 | |
| 			foreach ($setting as $setprop => $setval) {
 | |
| 				$this->settings[$setprop] = $setval;
 | |
| 			}
 | |
| 			if (array_key_exists('template', $setting)) {
 | |
| 				$this->_load_template($this->settings['template']);
 | |
| 			}
 | |
| 			return true;
 | |
| 		} elseif (isset($this->settings[$setting]) && $value !== '') {
 | |
| 			$this->settings[$setting] = $value;
 | |
| 			if ($setting === 'template') {
 | |
| 				$this->_load_template($this->settings['template']);
 | |
| 			}
 | |
| 			return true;
 | |
| 		}
 | |
| 		return false;
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Adds a token to $this->tokens
 | |
| 	 * @param mixed $type
 | |
| 	 * @param string $data
 | |
| 	 * @param bool $do add a token even if preserve_css is off
 | |
| 	 * @access private
 | |
| 	 * @version 1.0
 | |
| 	 */
 | |
| 	public function _add_token($type, $data, $do = false) {
 | |
| 		if ($this->get_cfg('preserve_css') || $do) {
 | |
| 			// nested @... : if opening a new part we just closed, remove the previous closing instead of adding opening
 | |
| 			if ($type === AT_START
 | |
| 				and count($this->tokens)
 | |
| 				and $last = end($this->tokens)
 | |
| 				and $last[0] === AT_END
 | |
| 				and $last[1] === trim($data)) {
 | |
| 				array_pop($this->tokens);
 | |
| 			}
 | |
| 			else {
 | |
| 				$this->tokens[] = array($type, ($type == COMMENT or $type == IMPORTANT_COMMENT) ? $data : trim($data));
 | |
| 			}
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Add a message to the message log
 | |
| 	 * @param string $message
 | |
| 	 * @param string $type
 | |
| 	 * @param integer $line
 | |
| 	 * @access private
 | |
| 	 * @version 1.0
 | |
| 	 */
 | |
| 	public function log($message, $type, $line = -1) {
 | |
| 		if ($line === -1) {
 | |
| 			$line = $this->line;
 | |
| 		}
 | |
| 		$line = intval($line);
 | |
| 		$add = array('m' => $message, 't' => $type);
 | |
| 		if (!isset($this->log[$line]) || !in_array($add, $this->log[$line])) {
 | |
| 			$this->log[$line][] = $add;
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Parse unicode notations and find a replacement character
 | |
| 	 * @param string $string
 | |
| 	 * @param integer $i
 | |
| 	 * @access private
 | |
| 	 * @return string
 | |
| 	 * @version 1.2
 | |
| 	 */
 | |
| 	public function _unicode(&$string, &$i) {
 | |
| 		++$i;
 | |
| 		$add = '';
 | |
| 		$replaced = false;
 | |
| 
 | |
| 		while ($i < strlen($string) && (ctype_xdigit($string[$i]) || ctype_space($string[$i])) && strlen($add) < 6) {
 | |
| 			$add .= $string[$i];
 | |
| 
 | |
| 			if (ctype_space($string[$i])) {
 | |
| 				break;
 | |
| 			}
 | |
| 			$i++;
 | |
| 		}
 | |
| 
 | |
| 		if (hexdec($add) > 47 && hexdec($add) < 58 || hexdec($add) > 64 && hexdec($add) < 91 || hexdec($add) > 96 && hexdec($add) < 123) {
 | |
| 			$this->log('Replaced unicode notation: Changed \\' . $add . ' to ' . chr(hexdec($add)), 'Information');
 | |
| 			$add = chr(hexdec($add));
 | |
| 			$replaced = true;
 | |
| 		} else {
 | |
| 			$add = trim('\\' . $add);
 | |
| 		}
 | |
| 
 | |
| 		if (@ctype_xdigit($string[$i + 1]) && ctype_space($string[$i])
 | |
| 						&& !$replaced || !ctype_space($string[$i])) {
 | |
| 			$i--;
 | |
| 		}
 | |
| 
 | |
| 		if ($add !== '\\' || !$this->get_cfg('remove_bslash') || strpos($this->tokens_list, $string[$i + 1]) !== false) {
 | |
| 			return $add;
 | |
| 		}
 | |
| 
 | |
| 		if ($add === '\\') {
 | |
| 			$this->log('Removed unnecessary backslash', 'Information');
 | |
| 		}
 | |
| 		return '';
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Write formatted output to a file
 | |
| 	 * @param string $filename
 | |
| 	 * @param string $doctype when printing formatted, is a shorthand for the document type
 | |
| 	 * @param bool $externalcss when printing formatted, indicates whether styles to be attached internally or as an external stylesheet
 | |
| 	 * @param string $title when printing formatted, is the title to be added in the head of the document
 | |
| 	 * @param string $lang when printing formatted, gives a two-letter language code to be added to the output
 | |
| 	 * @access public
 | |
| 	 * @version 1.4
 | |
| 	 */
 | |
| 	public function write_page($filename, $doctype='xhtml1.1', $externalcss=true, $title='', $lang='en') {
 | |
| 		$this->write($filename, true);
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Write plain output to a file
 | |
| 	 * @param string $filename
 | |
| 	 * @param bool $formatted whether to print formatted or not
 | |
| 	 * @param string $doctype when printing formatted, is a shorthand for the document type
 | |
| 	 * @param bool $externalcss when printing formatted, indicates whether styles to be attached internally or as an external stylesheet
 | |
| 	 * @param string $title when printing formatted, is the title to be added in the head of the document
 | |
| 	 * @param string $lang when printing formatted, gives a two-letter language code to be added to the output
 | |
| 	 * @param bool $pre_code whether to add pre and code tags around the code (for light HTML formatted templates)
 | |
| 	 * @access public
 | |
| 	 * @version 1.4
 | |
| 	 */
 | |
| 	public function write($filename, $formatted=false, $doctype='xhtml1.1', $externalcss=true, $title='', $lang='en', $pre_code=true) {
 | |
| 		$filename .= ( $formatted) ? '.xhtml' : '.css';
 | |
| 
 | |
| 		if (!is_dir('temp')) {
 | |
| 			$madedir = mkdir('temp');
 | |
| 			if (!$madedir) {
 | |
| 				print 'Could not make directory "temp" in ' . dirname(__FILE__);
 | |
| 				exit;
 | |
| 			}
 | |
| 		}
 | |
| 		$handle = fopen('temp/' . $filename, 'w');
 | |
| 		if ($handle) {
 | |
| 			if (!$formatted) {
 | |
| 				fwrite($handle, $this->print->plain());
 | |
| 			} else {
 | |
| 				fwrite($handle, $this->print->formatted_page($doctype, $externalcss, $title, $lang, $pre_code));
 | |
| 			}
 | |
| 		}
 | |
| 		fclose($handle);
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Loads a new template
 | |
| 	 * @param string $content either filename (if $from_file == true), content of a template file, "high_compression", "highest_compression", "low_compression", or "default"
 | |
| 	 * @param bool $from_file uses $content as filename if true
 | |
| 	 * @access public
 | |
| 	 * @version 1.1
 | |
| 	 * @see http://csstidy.sourceforge.net/templates.php
 | |
| 	 */
 | |
| 	public function load_template($content, $from_file=true) {
 | |
| 		$predefined_templates = & $this->data['csstidy']['predefined_templates'];
 | |
| 		if ($content === 'high_compression' || $content === 'default' || $content === 'highest_compression' || $content === 'low_compression') {
 | |
| 			$this->template = $predefined_templates[$content];
 | |
| 			return;
 | |
| 		}
 | |
| 
 | |
| 
 | |
| 		if ($from_file) {
 | |
| 			$content = strip_tags(file_get_contents($content), '<span>');
 | |
| 		}
 | |
| 		$content = str_replace("\r\n", "\n", $content); // Unify newlines (because the output also only uses \n)
 | |
| 		$template = explode('|', $content);
 | |
| 
 | |
| 		for ($i = 0; $i < count($template); $i++) {
 | |
| 			$this->template[$i] = $template[$i];
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Starts parsing from URL
 | |
| 	 * @param string $url
 | |
| 	 * @access public
 | |
| 	 * @version 1.0
 | |
| 	 */
 | |
| 	public function parse_from_url($url) {
 | |
| 		return $this->parse(@file_get_contents($url));
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Checks if there is a token at the current position
 | |
| 	 * @param string $string
 | |
| 	 * @param integer $i
 | |
| 	 * @access public
 | |
| 	 * @version 1.11
 | |
| 	 */
 | |
| 	public function is_token(&$string, $i) {
 | |
| 		return (strpos($this->tokens_list, $string[$i]) !== false && !$this->escaped($string, $i));
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Parses CSS in $string. The code is saved as array in $this->css
 | |
| 	 * @param string $string the CSS code
 | |
| 	 * @access public
 | |
| 	 * @return bool
 | |
| 	 * @version 1.1
 | |
| 	 */
 | |
| 	public function parse($string) {
 | |
| 		// Temporarily set locale to en_US in order to handle floats properly
 | |
| 		$old = @setlocale(LC_ALL, 0);
 | |
| 		@setlocale(LC_ALL, 'C');
 | |
| 
 | |
| 		// PHP bug? Settings need to be refreshed in PHP4
 | |
| 		$this->print = new csstidy_print($this);
 | |
| 		$this->optimise = new csstidy_optimise($this);
 | |
| 
 | |
| 		$all_properties = & $this->data['csstidy']['all_properties'];
 | |
| 		$at_rules = & $this->data['csstidy']['at_rules'];
 | |
| 		$quoted_string_properties = & $this->data['csstidy']['quoted_string_properties'];
 | |
| 
 | |
| 		$this->css = array();
 | |
| 		$this->print->input_css = $string;
 | |
| 		$string = str_replace("\r\n", "\n", $string) . ' ';
 | |
| 		$cur_comment = '';
 | |
| 		$cur_at = '';
 | |
| 
 | |
| 		for ($i = 0, $size = strlen($string); $i < $size; $i++) {
 | |
| 			if ($string[$i] === "\n" || $string[$i] === "\r") {
 | |
| 				++$this->line;
 | |
| 			}
 | |
| 
 | |
| 			switch ($this->status) {
 | |
| 				/* Case in at-block */
 | |
| 				case 'at':
 | |
| 					if ($this->is_token($string, $i)) {
 | |
| 						if ($string[$i] === '/' && @$string[$i + 1] === '*') {
 | |
| 							$this->status = 'ic';
 | |
| 							++$i;
 | |
| 							$this->from[] = 'at';
 | |
| 						} elseif ($string[$i] === '{') {
 | |
| 							$this->status = 'is';
 | |
| 							$this->at = $this->css_new_media_section($this->at, $cur_at);
 | |
| 							$this->_add_token(AT_START, $this->at);
 | |
| 						} elseif ($string[$i] === ',') {
 | |
| 							$cur_at = trim($cur_at) . ',';
 | |
| 						} elseif ($string[$i] === '\\') {
 | |
| 							$cur_at .= $this->_unicode($string, $i);
 | |
| 						}
 | |
| 						// fix for complicated media, i.e @media screen and (-webkit-min-device-pixel-ratio:1.5)
 | |
| 						elseif (in_array($string[$i], array('(', ')', ':', '.', '/'))) {
 | |
| 							$cur_at .= $string[$i];
 | |
| 						}
 | |
| 					} else {
 | |
| 						$lastpos = strlen($cur_at) - 1;
 | |
| 						if (!( (ctype_space($cur_at[$lastpos]) || $this->is_token($cur_at, $lastpos) && $cur_at[$lastpos] === ',') && ctype_space($string[$i]))) {
 | |
| 							$cur_at .= $string[$i];
 | |
| 						}
 | |
| 					}
 | |
| 					break;
 | |
| 
 | |
| 				/* Case in-selector */
 | |
| 				case 'is':
 | |
| 					if ($this->is_token($string, $i)) {
 | |
| 						if ($string[$i] === '/' && @$string[$i + 1] === '*' && trim($this->selector) == '') {
 | |
| 							$this->status = 'ic';
 | |
| 							++$i;
 | |
| 							$this->from[] = 'is';
 | |
| 						} elseif ($string[$i] === '@' && trim($this->selector) == '') {
 | |
| 							// Check for at-rule
 | |
| 							$this->invalid_at = true;
 | |
| 							foreach ($at_rules as $name => $type) {
 | |
| 								if (!strcasecmp(substr($string, $i + 1, strlen($name)), $name)) {
 | |
| 									($type === 'at') ? $cur_at = '@' . $name : $this->selector = '@' . $name;
 | |
| 									if ($type === 'atis') {
 | |
| 										$this->next_selector_at = ($this->next_selector_at?$this->next_selector_at:($this->at?$this->at:DEFAULT_AT));
 | |
| 										$this->at = $this->css_new_media_section($this->at, ' ', true);
 | |
| 										$type = 'is';
 | |
| 									}
 | |
| 									$this->status = $type;
 | |
| 									$i += strlen($name);
 | |
| 									$this->invalid_at = false;
 | |
| 									break;
 | |
| 								}
 | |
| 							}
 | |
| 
 | |
| 							if ($this->invalid_at) {
 | |
| 								$this->selector = '@';
 | |
| 								$invalid_at_name = '';
 | |
| 								for ($j = $i + 1; $j < $size; ++$j) {
 | |
| 									if (!ctype_alpha($string[$j])) {
 | |
| 										break;
 | |
| 									}
 | |
| 									$invalid_at_name .= $string[$j];
 | |
| 								}
 | |
| 								$this->log('Invalid @-rule: ' . $invalid_at_name . ' (removed)', 'Warning');
 | |
| 							}
 | |
| 						} elseif (($string[$i] === '"' || $string[$i] === "'")) {
 | |
| 							$this->cur_string[] = $string[$i];
 | |
| 							$this->status = 'instr';
 | |
| 							$this->str_char[] = $string[$i];
 | |
| 							$this->from[] = 'is';
 | |
| 							/* fixing CSS3 attribute selectors, i.e. a[href$=".mp3" */
 | |
| 							$this->quoted_string[] = ($string[$i - 1] === '=' );
 | |
| 						} elseif ($this->invalid_at && $string[$i] === ';') {
 | |
| 							$this->invalid_at = false;
 | |
| 							$this->status = 'is';
 | |
| 							if ($this->next_selector_at) {
 | |
| 								$this->at = $this->css_close_media_section($this->at);
 | |
| 								$this->at = $this->css_new_media_section($this->at, $this->next_selector_at);
 | |
| 								$this->next_selector_at = '';
 | |
| 							}
 | |
| 						} elseif ($string[$i] === '{') {
 | |
| 							$this->status = 'ip';
 | |
| 							if ($this->at == '') {
 | |
| 								$this->at = $this->css_new_media_section($this->at, DEFAULT_AT);
 | |
| 							}
 | |
| 							$this->selector = $this->css_new_selector($this->at,$this->selector);
 | |
| 							$this->_add_token(SEL_START, $this->selector);
 | |
| 							$this->added = false;
 | |
| 						} elseif ($string[$i] === '}') {
 | |
| 							$this->_add_token(AT_END, $this->at);
 | |
| 							$this->at = $this->css_close_media_section($this->at);
 | |
| 							$this->selector = '';
 | |
| 							$this->sel_separate = array();
 | |
| 						} elseif ($string[$i] === ',') {
 | |
| 							$this->selector = trim($this->selector) . ',';
 | |
| 							$this->sel_separate[] = strlen($this->selector);
 | |
| 						} elseif ($string[$i] === '\\') {
 | |
| 							$this->selector .= $this->_unicode($string, $i);
 | |
| 						} elseif ($string[$i] === '*' && @in_array($string[$i + 1], array('.', '#', '[', ':')) && ($i==0 OR $string[$i - 1]!=='/')) {
 | |
| 							// remove unnecessary universal selector, FS#147, but not comment in selector
 | |
| 						} else {
 | |
| 							$this->selector .= $string[$i];
 | |
| 						}
 | |
| 					} else {
 | |
| 						$lastpos = strlen($this->selector) - 1;
 | |
| 						if ($lastpos == -1 || !( (ctype_space($this->selector[$lastpos]) || $this->is_token($this->selector, $lastpos) && $this->selector[$lastpos] === ',') && ctype_space($string[$i]))) {
 | |
| 							$this->selector .= $string[$i];
 | |
| 						}
 | |
| 					}
 | |
| 					break;
 | |
| 
 | |
| 				/* Case in-property */
 | |
| 				case 'ip':
 | |
| 					if ($this->is_token($string, $i)) {
 | |
| 						if (($string[$i] === ':' || $string[$i] === '=') && $this->property != '') {
 | |
| 							$this->status = 'iv';
 | |
| 							if (!$this->get_cfg('discard_invalid_properties') || $this->property_is_valid($this->property)) {
 | |
| 								$this->property = $this->css_new_property($this->at,$this->selector,$this->property);
 | |
| 								$this->_add_token(PROPERTY, $this->property);
 | |
| 							}
 | |
| 						} elseif ($string[$i] === '/' && @$string[$i + 1] === '*' && $this->property == '') {
 | |
| 							$this->status = 'ic';
 | |
| 							++$i;
 | |
| 							$this->from[] = 'ip';
 | |
| 						} elseif ($string[$i] === '}') {
 | |
| 							$this->explode_selectors();
 | |
| 							$this->status = 'is';
 | |
| 							$this->invalid_at = false;
 | |
| 							$this->_add_token(SEL_END, $this->selector);
 | |
| 							$this->selector = '';
 | |
| 							$this->property = '';
 | |
| 							if ($this->next_selector_at) {
 | |
| 								$this->at = $this->css_close_media_section($this->at);
 | |
| 								$this->at = $this->css_new_media_section($this->at, $this->next_selector_at);
 | |
| 								$this->next_selector_at = '';
 | |
| 							}
 | |
| 						} elseif ($string[$i] === ';') {
 | |
| 							$this->property = '';
 | |
| 						} elseif ($string[$i] === '\\') {
 | |
| 							$this->property .= $this->_unicode($string, $i);
 | |
| 						}
 | |
| 						// else this is dumb IE a hack, keep it
 | |
| 						// including //
 | |
| 						elseif (($this->property === '' && !ctype_space($string[$i]))
 | |
| 							|| ($this->property === '/' || $string[$i] === '/')) {
 | |
| 							$this->property .= $string[$i];
 | |
| 						}
 | |
| 					} elseif (!ctype_space($string[$i])) {
 | |
| 						$this->property .= $string[$i];
 | |
| 					}
 | |
| 					break;
 | |
| 
 | |
| 				/* Case in-value */
 | |
| 				case 'iv':
 | |
| 					$pn = (($string[$i] === "\n" || $string[$i] === "\r") && $this->property_is_next($string, $i + 1) || $i == strlen($string) - 1);
 | |
| 					if ($this->is_token($string, $i) || $pn) {
 | |
| 						if ($string[$i] === '/' && @$string[$i + 1] === '*') {
 | |
| 							$this->status = 'ic';
 | |
| 							++$i;
 | |
| 							$this->from[] = 'iv';
 | |
| 						} elseif (($string[$i] === '"' || $string[$i] === "'" || $string[$i] === '(')) {
 | |
| 							$this->cur_string[] = $string[$i];
 | |
| 							$this->str_char[] = ($string[$i] === '(') ? ')' : $string[$i];
 | |
| 							$this->status = 'instr';
 | |
| 							$this->from[] = 'iv';
 | |
| 							$this->quoted_string[] = in_array(strtolower($this->property), $quoted_string_properties);
 | |
| 						} elseif ($string[$i] === ',') {
 | |
| 							$this->sub_value = trim($this->sub_value) . ',';
 | |
| 						} elseif ($string[$i] === '\\') {
 | |
| 							$this->sub_value .= $this->_unicode($string, $i);
 | |
| 						} elseif ($string[$i] === ';' || $pn) {
 | |
| 							if ($this->selector[0] === '@' && isset($at_rules[substr($this->selector, 1)]) && $at_rules[substr($this->selector, 1)] === 'iv') {
 | |
| 								/* Add quotes to charset, import, namespace */
 | |
| 								$this->sub_value_arr[] = trim($this->sub_value);
 | |
| 
 | |
| 								$this->status = 'is';
 | |
| 
 | |
| 								switch ($this->selector) {
 | |
| 									case '@charset': $this->charset = '"'.$this->sub_value_arr[0].'"';
 | |
| 										break;
 | |
| 									case '@namespace': $this->namespace = implode(' ', $this->sub_value_arr);
 | |
| 										break;
 | |
| 									case '@import': $this->import[] = implode(' ', $this->sub_value_arr);
 | |
| 										break;
 | |
| 								}
 | |
| 
 | |
| 								$this->sub_value_arr = array();
 | |
| 								$this->sub_value = '';
 | |
| 								$this->selector = '';
 | |
| 								$this->sel_separate = array();
 | |
| 							} else {
 | |
| 								$this->status = 'ip';
 | |
| 							}
 | |
| 						} elseif ($string[$i] !== '}') {
 | |
| 							$this->sub_value .= $string[$i];
 | |
| 						}
 | |
| 						if (($string[$i] === '}' || $string[$i] === ';' || $pn) && !empty($this->selector)) {
 | |
| 							if ($this->at == '') {
 | |
| 								$this->at = $this->css_new_media_section($this->at,DEFAULT_AT);
 | |
| 							}
 | |
| 
 | |
| 							// case settings
 | |
| 							if ($this->get_cfg('lowercase_s')) {
 | |
| 								$this->selector = strtolower($this->selector);
 | |
| 							}
 | |
| 							$this->property = strtolower($this->property);
 | |
| 
 | |
| 							$this->optimise->subvalue();
 | |
| 							if ($this->sub_value != '') {
 | |
| 								$this->sub_value_arr[] = $this->sub_value;
 | |
| 								$this->sub_value = '';
 | |
| 							}
 | |
| 
 | |
| 							$this->value = '';
 | |
| 							while (count($this->sub_value_arr)) {
 | |
| 								$sub = array_shift($this->sub_value_arr);
 | |
| 								if (strstr($this->selector, 'font-face')) {
 | |
| 									$sub = $this->quote_font_format($sub);
 | |
| 								}
 | |
| 
 | |
| 								if ($sub != '')
 | |
| 									$this->value .= ((!strlen($this->value) || substr($this->value,-1,1) === ',')?'':' ').$sub;
 | |
| 							}
 | |
| 
 | |
| 							$this->optimise->value();
 | |
| 
 | |
| 							$valid = $this->property_is_valid($this->property);
 | |
| 							if ((!$this->invalid_at || $this->get_cfg('preserve_css')) && (!$this->get_cfg('discard_invalid_properties') || $valid)) {
 | |
| 								$this->css_add_property($this->at, $this->selector, $this->property, $this->value);
 | |
| 								$this->_add_token(VALUE, $this->value);
 | |
| 								$this->optimise->shorthands();
 | |
| 							}
 | |
| 							if (!$valid) {
 | |
| 								if ($this->get_cfg('discard_invalid_properties')) {
 | |
| 									$this->log('Removed invalid property: ' . $this->property, 'Warning');
 | |
| 								} else {
 | |
| 									$this->log('Invalid property in ' . strtoupper($this->get_cfg('css_level')) . ': ' . $this->property, 'Warning');
 | |
| 								}
 | |
| 							}
 | |
| 
 | |
| 							$this->property = '';
 | |
| 							$this->sub_value_arr = array();
 | |
| 							$this->value = '';
 | |
| 						}
 | |
| 						if ($string[$i] === '}') {
 | |
| 							$this->explode_selectors();
 | |
| 							$this->_add_token(SEL_END, $this->selector);
 | |
| 							$this->status = 'is';
 | |
| 							$this->invalid_at = false;
 | |
| 							$this->selector = '';
 | |
| 							if ($this->next_selector_at) {
 | |
| 								$this->at = $this->css_close_media_section($this->at);
 | |
| 								$this->at = $this->css_new_media_section($this->at, $this->next_selector_at);
 | |
| 								$this->next_selector_at = '';
 | |
| 							}
 | |
| 						}
 | |
| 					} elseif (!$pn) {
 | |
| 						$this->sub_value .= $string[$i];
 | |
| 
 | |
| 						if (ctype_space($string[$i])) {
 | |
| 							$this->optimise->subvalue();
 | |
| 							if ($this->sub_value != '') {
 | |
| 								$this->sub_value_arr[] = $this->sub_value;
 | |
| 								$this->sub_value = '';
 | |
| 							}
 | |
| 						}
 | |
| 					}
 | |
| 					break;
 | |
| 
 | |
| 				/* Case in string */
 | |
| 				case 'instr':
 | |
| 					$_str_char = $this->str_char[count($this->str_char)-1];
 | |
| 					$_cur_string = $this->cur_string[count($this->cur_string)-1];
 | |
| 					$_quoted_string = $this->quoted_string[count($this->quoted_string)-1];
 | |
| 					$temp_add = $string[$i];
 | |
| 
 | |
| 					// Add another string to the stack. Strings can't be nested inside of quotes, only parentheses, but
 | |
| 					// parentheticals can be nested more than once.
 | |
| 					if ($_str_char === ")" && ($string[$i] === "(" || $string[$i] === '"' || $string[$i] === '\'') && !$this->escaped($string, $i)) {
 | |
| 						$this->cur_string[] = $string[$i];
 | |
| 						$this->str_char[] = $string[$i] === '(' ? ')' : $string[$i];
 | |
| 						$this->from[] = 'instr';
 | |
| 						$this->quoted_string[] = ($_str_char === ')' && $string[$i] !== '(' && trim($_cur_string)==='(')?$_quoted_string:!($string[$i] === '(');
 | |
| 						continue 2;
 | |
| 					}
 | |
| 
 | |
| 					if ($_str_char !== ")" && ($string[$i] === "\n" || $string[$i] === "\r") && !($string[$i - 1] === '\\' && !$this->escaped($string, $i - 1))) {
 | |
| 						$temp_add = "\\A";
 | |
| 						$this->log('Fixed incorrect newline in string', 'Warning');
 | |
| 					}
 | |
| 
 | |
| 					$_cur_string .= $temp_add;
 | |
| 
 | |
| 					if ($string[$i] === $_str_char && !$this->escaped($string, $i)) {
 | |
| 						$this->status = array_pop($this->from);
 | |
| 
 | |
| 						if (!preg_match('|[' . implode('', $this->data['csstidy']['whitespace']) . ']|uis', $_cur_string) && $this->property !== 'content') {
 | |
| 							if (!$_quoted_string) {
 | |
| 								if ($_str_char !== ')') {
 | |
| 									// Convert properties like
 | |
| 									// font-family: 'Arial';
 | |
| 									// to
 | |
| 									// font-family: Arial;
 | |
| 									// or
 | |
| 									// url("abc")
 | |
| 									// to
 | |
| 									// url(abc)
 | |
| 									$_cur_string = substr($_cur_string, 1, -1);
 | |
| 								}
 | |
| 							} else {
 | |
| 								$_quoted_string = false;
 | |
| 							}
 | |
| 						}
 | |
| 
 | |
| 						array_pop($this->cur_string);
 | |
| 						array_pop($this->quoted_string);
 | |
| 						array_pop($this->str_char);
 | |
| 
 | |
| 						if ($_str_char === ')') {
 | |
| 							$_cur_string = '(' . trim(substr($_cur_string, 1, -1)) . ')';
 | |
| 						}
 | |
| 
 | |
| 						if ($this->status === 'iv') {
 | |
| 							if (!$_quoted_string) {
 | |
| 								if (strpos($_cur_string,',') !== false)
 | |
| 									// we can on only remove space next to ','
 | |
| 									$_cur_string = implode(',', array_map('trim', explode(',',$_cur_string)));
 | |
| 								// and multiple spaces (too expensive)
 | |
| 								if (strpos($_cur_string, '  ') !== false)
 | |
| 									$_cur_string = preg_replace(",\s+,", ' ', $_cur_string);
 | |
| 							}
 | |
| 							$this->sub_value .= $_cur_string;
 | |
| 						} elseif ($this->status === 'is') {
 | |
| 							$this->selector .= $_cur_string;
 | |
| 						} elseif ($this->status === 'instr') {
 | |
| 							$this->cur_string[count($this->cur_string)-1] .= $_cur_string;
 | |
| 						}
 | |
| 					} else {
 | |
| 						$this->cur_string[count($this->cur_string)-1] = $_cur_string;
 | |
| 					}
 | |
| 					break;
 | |
| 
 | |
| 				/* Case in-comment */
 | |
| 				case 'ic':
 | |
| 					if ($string[$i] === '*' && $string[$i + 1] === '/') {
 | |
| 						$this->status = array_pop($this->from);
 | |
| 						$i++;
 | |
| 						if (strlen($cur_comment) > 1 and strncmp($cur_comment, '!', 1) === 0) {
 | |
| 							$this->_add_token(IMPORTANT_COMMENT, $cur_comment);
 | |
| 							$this->css_add_important_comment($cur_comment);
 | |
| 						}
 | |
| 						else {
 | |
| 							$this->_add_token(COMMENT, $cur_comment);
 | |
| 						}
 | |
| 						$cur_comment = '';
 | |
| 					} else {
 | |
| 						$cur_comment .= $string[$i];
 | |
| 					}
 | |
| 					break;
 | |
| 			}
 | |
| 		}
 | |
| 
 | |
| 		$this->optimise->postparse();
 | |
| 
 | |
| 		$this->print->_reset();
 | |
| 
 | |
| 		@setlocale(LC_ALL, $old); // Set locale back to original setting
 | |
| 
 | |
| 		return!(empty($this->css) && empty($this->import) && empty($this->charset) && empty($this->tokens) && empty($this->namespace));
 | |
| 	}
 | |
| 
 | |
| 
 | |
| 	/**
 | |
| 	 * format() in font-face needs quoted values for somes browser (FF at least)
 | |
| 	 *
 | |
| 	 * @param $value
 | |
| 	 * @return string
 | |
| 	 */
 | |
| 	public function quote_font_format($value) {
 | |
| 		if (strncmp($value,'format',6) == 0) {
 | |
| 			$p = strpos($value,')',7);
 | |
| 			$end = substr($value,$p);
 | |
| 			$format_strings = $this->parse_string_list(substr($value, 7, $p-7));
 | |
| 			if (!$format_strings) {
 | |
| 				$value = '';
 | |
| 			} else {
 | |
| 				$value = 'format(';
 | |
| 
 | |
| 				foreach ($format_strings as $format_string) {
 | |
| 					$value .= '"' . str_replace('"', '\\"', $format_string) . '",';
 | |
| 				}
 | |
| 
 | |
| 				$value = substr($value, 0, -1) . $end;
 | |
| 			}
 | |
| 		}
 | |
| 		return $value;
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Explodes selectors
 | |
| 	 * @access private
 | |
| 	 * @version 1.0
 | |
| 	 */
 | |
| 	public function explode_selectors() {
 | |
| 		// Explode multiple selectors
 | |
| 		if ($this->get_cfg('merge_selectors') === 1) {
 | |
| 			$new_sels = array();
 | |
| 			$lastpos = 0;
 | |
| 			$this->sel_separate[] = strlen($this->selector);
 | |
| 			foreach ($this->sel_separate as $num => $pos) {
 | |
| 				if ($num == count($this->sel_separate) - 1) {
 | |
| 					$pos += 1;
 | |
| 				}
 | |
| 
 | |
| 				$new_sels[] = substr($this->selector, $lastpos, $pos - $lastpos - 1);
 | |
| 				$lastpos = $pos;
 | |
| 			}
 | |
| 
 | |
| 			if (count($new_sels) > 1) {
 | |
| 				foreach ($new_sels as $selector) {
 | |
| 					if (isset($this->css[$this->at][$this->selector])) {
 | |
| 						$this->merge_css_blocks($this->at, $selector, $this->css[$this->at][$this->selector]);
 | |
| 					}
 | |
| 				}
 | |
| 				unset($this->css[$this->at][$this->selector]);
 | |
| 			}
 | |
| 		}
 | |
| 		$this->sel_separate = array();
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Checks if a character is escaped (and returns true if it is)
 | |
| 	 * @param string $string
 | |
| 	 * @param integer $pos
 | |
| 	 * @access public
 | |
| 	 * @return bool
 | |
| 	 * @version 1.02
 | |
| 	 */
 | |
| 	static function escaped(&$string, $pos) {
 | |
| 		return!(@($string[$pos - 1] !== '\\') || csstidy::escaped($string, $pos - 1));
 | |
| 	}
 | |
| 
 | |
| 
 | |
| 	/**
 | |
| 	 * Add an important comment to the css code
 | |
| 	 * (one we want to keep)
 | |
| 	 * @param $comment
 | |
| 	 */
 | |
| 	public function css_add_important_comment($comment) {
 | |
| 		if ($this->get_cfg('preserve_css') || trim($comment) == '') {
 | |
| 			return;
 | |
| 		}
 | |
| 		if (!isset($this->css['!'])) {
 | |
| 			$this->css['!'] = '';
 | |
| 		}
 | |
| 		else {
 | |
| 			$this->css['!'] .= "\n";
 | |
| 		}
 | |
| 		$this->css['!'] .= $comment;
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Adds a property with value to the existing CSS code
 | |
| 	 * @param string $media
 | |
| 	 * @param string $selector
 | |
| 	 * @param string $property
 | |
| 	 * @param string $new_val
 | |
| 	 * @access private
 | |
| 	 * @version 1.2
 | |
| 	 */
 | |
| 	public function css_add_property($media, $selector, $property, $new_val) {
 | |
| 		if ($this->get_cfg('preserve_css') || trim($new_val) == '') {
 | |
| 			return;
 | |
| 		}
 | |
| 
 | |
| 		$this->added = true;
 | |
| 		if (isset($this->css[$media][$selector][$property])) {
 | |
| 			if (($this->is_important($this->css[$media][$selector][$property]) && $this->is_important($new_val)) || !$this->is_important($this->css[$media][$selector][$property])) {
 | |
| 				$this->css[$media][$selector][$property] = trim($new_val);
 | |
| 			}
 | |
| 		} else {
 | |
| 			$this->css[$media][$selector][$property] = trim($new_val);
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Check if a current media section is the continuation of the last one
 | |
| 	 * if not inc the name of the media section to avoid a merging
 | |
| 	 *
 | |
| 	 * @param int|string $media
 | |
| 	 * @return int|string
 | |
| 	 */
 | |
| 	public function css_check_last_media_section_or_inc($media) {
 | |
| 		// are we starting?
 | |
| 		if (!$this->css || !is_array($this->css) || empty($this->css)) {
 | |
| 			return $media;
 | |
| 		}
 | |
| 
 | |
| 		// if the last @media is the same as this
 | |
| 		// keep it
 | |
| 		end($this->css);
 | |
| 		$at = key($this->css);
 | |
| 		if ($at == $media) {
 | |
| 			return $media;
 | |
| 		}
 | |
| 
 | |
| 		// else inc the section in the array
 | |
| 		while (isset($this->css[$media]))
 | |
| 			if (is_numeric($media))
 | |
| 				$media++;
 | |
| 			else
 | |
| 				$media .= ' ';
 | |
| 		return $media;
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Start a new media section.
 | |
| 	 * Check if the media is not already known,
 | |
| 	 * else rename it with extra spaces
 | |
| 	 * to avoid merging
 | |
| 	 *
 | |
| 	 * @param string $current_media
 | |
| 	 * @param string $media
 | |
| 	 * @param bool $at_root
 | |
| 	 * @return string
 | |
| 	 */
 | |
| 	public function css_new_media_section($current_media, $new_media, $at_root = false) {
 | |
| 		if ($this->get_cfg('preserve_css')) {
 | |
| 			return $new_media;
 | |
| 		}
 | |
| 
 | |
| 		// if we already are in a media and CSS level is 3, manage nested medias
 | |
| 		if ($current_media
 | |
| 			&& !$at_root
 | |
| 			// numeric $current_media means DEFAULT_AT or inc
 | |
| 			&& !is_numeric($current_media)
 | |
| 			&& strncmp($this->get_cfg('css_level'), 'CSS3', 4) == 0) {
 | |
| 
 | |
| 			$new_media = rtrim($current_media) . "{" . rtrim($new_media);
 | |
| 		}
 | |
| 
 | |
| 		return $this->css_check_last_media_section_or_inc($new_media);
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Close a media section
 | |
| 	 * Find the parent media we were in before or the root
 | |
| 	 * @param $current_media
 | |
| 	 * @return string
 | |
| 	 */
 | |
| 	public function css_close_media_section($current_media) {
 | |
| 		if ($this->get_cfg('preserve_css')) {
 | |
| 			return '';
 | |
| 		}
 | |
| 
 | |
| 		if (strpos($current_media, '{') !== false) {
 | |
| 			$current_media = explode('{', $current_media);
 | |
| 			array_pop($current_media);
 | |
| 			$current_media = implode('{', $current_media);
 | |
| 			return $current_media;
 | |
| 		}
 | |
| 
 | |
| 		return '';
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Start a new selector.
 | |
| 	 * If already referenced in this media section,
 | |
| 	 * rename it with extra space to avoid merging
 | |
| 	 * except if merging is required,
 | |
| 	 * or last selector is the same (merge siblings)
 | |
| 	 *
 | |
| 	 * never merge @font-face
 | |
| 	 *
 | |
| 	 * @param string $media
 | |
| 	 * @param string $selector
 | |
| 	 * @return string
 | |
| 	 */
 | |
| 	public function css_new_selector($media,$selector) {
 | |
| 		if ($this->get_cfg('preserve_css')) {
 | |
| 			return $selector;
 | |
| 		}
 | |
| 		$selector = trim($selector);
 | |
| 		if (strncmp($selector,'@font-face',10)!=0) {
 | |
| 			if ($this->settings['merge_selectors'] != false)
 | |
| 				return $selector;
 | |
| 
 | |
| 			if (!$this->css || !isset($this->css[$media]) || !$this->css[$media])
 | |
| 				return $selector;
 | |
| 
 | |
| 			// if last is the same, keep it
 | |
| 			end($this->css[$media]);
 | |
| 			$sel = key($this->css[$media]);
 | |
| 			if ($sel == $selector) {
 | |
| 				return $selector;
 | |
| 			}
 | |
| 		}
 | |
| 
 | |
| 		while (isset($this->css[$media][$selector]))
 | |
| 			$selector .= ' ';
 | |
| 		return $selector;
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Start a new propertie.
 | |
| 	 * If already references in this selector,
 | |
| 	 * rename it with extra space to avoid override
 | |
| 	 *
 | |
| 	 * @param string $media
 | |
| 	 * @param string $selector
 | |
| 	 * @param string $property
 | |
| 	 * @return string
 | |
| 	 */
 | |
| 	public function css_new_property($media, $selector, $property) {
 | |
| 		if ($this->get_cfg('preserve_css')) {
 | |
| 			return $property;
 | |
| 		}
 | |
| 		if (!$this->css || !isset($this->css[$media][$selector]) || !$this->css[$media][$selector])
 | |
| 			return $property;
 | |
| 
 | |
| 		while (isset($this->css[$media][$selector][$property]))
 | |
| 			$property .= ' ';
 | |
| 
 | |
| 		return $property;
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Adds CSS to an existing media/selector
 | |
| 	 * @param string $media
 | |
| 	 * @param string $selector
 | |
| 	 * @param array $css_add
 | |
| 	 * @access private
 | |
| 	 * @version 1.1
 | |
| 	 */
 | |
| 	public function merge_css_blocks($media, $selector, $css_add) {
 | |
| 		foreach ($css_add as $property => $value) {
 | |
| 			$this->css_add_property($media, $selector, $property, $value, false);
 | |
| 		}
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Checks if $value is !important.
 | |
| 	 * @param string $value
 | |
| 	 * @return bool
 | |
| 	 * @access public
 | |
| 	 * @version 1.0
 | |
| 	 */
 | |
| 	public function is_important(&$value) {
 | |
| 		return (
 | |
| 			strpos($value, '!') !== false // quick test
 | |
| 			AND !strcasecmp(substr(str_replace($this->data['csstidy']['whitespace'], '', $value), -10, 10), '!important'));
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Returns a value without !important
 | |
| 	 * @param string $value
 | |
| 	 * @return string
 | |
| 	 * @access public
 | |
| 	 * @version 1.0
 | |
| 	 */
 | |
| 	public function gvw_important($value) {
 | |
| 		if ($this->is_important($value)) {
 | |
| 			$value = trim($value);
 | |
| 			$value = substr($value, 0, -9);
 | |
| 			$value = trim($value);
 | |
| 			$value = substr($value, 0, -1);
 | |
| 			$value = trim($value);
 | |
| 			return $value;
 | |
| 		}
 | |
| 		return $value;
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Checks if the next word in a string from pos is a CSS property
 | |
| 	 * @param string $istring
 | |
| 	 * @param integer $pos
 | |
| 	 * @return bool
 | |
| 	 * @access private
 | |
| 	 * @version 1.2
 | |
| 	 */
 | |
| 	public function property_is_next($istring, $pos) {
 | |
| 		$all_properties = & $this->data['csstidy']['all_properties'];
 | |
| 		$istring = substr($istring, $pos, strlen($istring) - $pos);
 | |
| 		$pos = strpos($istring, ':');
 | |
| 		if ($pos === false) {
 | |
| 			return false;
 | |
| 		}
 | |
| 		$istring = strtolower(trim(substr($istring, 0, $pos)));
 | |
| 		if (isset($all_properties[$istring])) {
 | |
| 			$this->log('Added semicolon to the end of declaration', 'Warning');
 | |
| 			return true;
 | |
| 		}
 | |
| 		return false;
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Checks if a property is valid
 | |
| 	 * @param string $property
 | |
| 	 * @return bool
 | |
| 	 * @access public
 | |
| 	 * @version 1.0
 | |
| 	 */
 | |
| 	public function property_is_valid($property) {
 | |
| 		if (strpos($property, '--') === 0) {
 | |
| 			$property = "--custom";
 | |
| 		}
 | |
| 		elseif (in_array(trim($property), $this->data['csstidy']['multiple_properties'])) {
 | |
| 			$property = trim($property);
 | |
| 		}
 | |
| 		$all_properties = & $this->data['csstidy']['all_properties'];
 | |
| 		return (isset($all_properties[$property]) && strpos($all_properties[$property], strtoupper($this->get_cfg('css_level'))) !== false );
 | |
| 	}
 | |
| 
 | |
| 	/**
 | |
| 	 * Accepts a list of strings (e.g., the argument to format() in a @font-face src property)
 | |
| 	 * and returns a list of the strings.  Converts things like:
 | |
| 	 *
 | |
| 	 * format(abc) => format("abc")
 | |
| 	 * format(abc def) => format("abc","def")
 | |
| 	 * format(abc "def") => format("abc","def")
 | |
| 	 * format(abc, def, ghi) => format("abc","def","ghi")
 | |
| 	 * format("abc",'def') => format("abc","def")
 | |
| 	 * format("abc, def, ghi") => format("abc, def, ghi")
 | |
| 	 *
 | |
| 	 * @param string
 | |
| 	 * @return array
 | |
| 	 */
 | |
| 	public function parse_string_list($value) {
 | |
| 		$value = trim($value);
 | |
| 
 | |
| 		// Case: empty
 | |
| 		if (!$value) return array();
 | |
| 
 | |
| 		$strings = array();
 | |
| 
 | |
| 		$in_str = false;
 | |
| 		$current_string = '';
 | |
| 
 | |
| 		for ($i = 0, $_len = strlen($value); $i < $_len; $i++) {
 | |
| 			if (($value[$i] === ',' || $value[$i] === ' ') && $in_str === true) {
 | |
| 				$in_str = false;
 | |
| 				$strings[] = $current_string;
 | |
| 				$current_string = '';
 | |
| 			} elseif ($value[$i] === '"' || $value[$i] === "'") {
 | |
| 				if ($in_str === $value[$i]) {
 | |
| 					$strings[] = $current_string;
 | |
| 					$in_str = false;
 | |
| 					$current_string = '';
 | |
| 					continue;
 | |
| 				} elseif (!$in_str) {
 | |
| 					$in_str = $value[$i];
 | |
| 				}
 | |
| 			} else {
 | |
| 				if ($in_str) {
 | |
| 					$current_string .= $value[$i];
 | |
| 				} else {
 | |
| 					if (!preg_match("/[\s,]/", $value[$i])) {
 | |
| 						$in_str = true;
 | |
| 						$current_string = $value[$i];
 | |
| 					}
 | |
| 				}
 | |
| 			}
 | |
| 		}
 | |
| 
 | |
| 		if ($current_string) {
 | |
| 			$strings[] = $current_string;
 | |
| 		}
 | |
| 
 | |
| 		return $strings;
 | |
| 	}
 | |
| }
 |