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<?php |
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/** |
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* CSSTidy - CSS Parser and Optimiser |
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* |
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* CSS Optimising Class |
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* This class optimises CSS data generated by csstidy. |
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* |
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* Copyright 2005, 2006, 2007 Florian Schmitz |
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* |
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* This file is part of CSSTidy. |
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* |
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* CSSTidy is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser General Public License as published by |
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* the Free Software Foundation; either version 2.1 of the License, or |
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* (at your option) any later version. |
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* |
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* CSSTidy is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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* |
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* @license http://opensource.org/licenses/lgpl-license.php GNU Lesser General Public License |
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* @package csstidy |
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* @author Florian Schmitz (floele at gmail dot com) 2005-2007 |
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* @author Brett Zamir (brettz9 at yahoo dot com) 2007 |
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* @author Nikolay Matsievsky (speed at webo dot name) 2009-2010 |
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*/ |
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/** |
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* CSS Optimising Class |
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* |
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* This class optimises CSS data generated by csstidy. |
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* |
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* @package csstidy |
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* @author Florian Schmitz (floele at gmail dot com) 2005-2006 |
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* @version 1.0 |
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*/ |
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class csstidy_optimise { |
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/** |
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* Constructor |
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* @param array $css contains the class csstidy |
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* @access private |
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* @version 1.0 |
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*/ |
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function __construct(&$css) { |
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$this->parser = & $css; |
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$this->css = & $css->css; |
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$this->sub_value = & $css->sub_value; |
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$this->at = & $css->at; |
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$this->selector = & $css->selector; |
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$this->property = & $css->property; |
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$this->value = & $css->value; |
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} |
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function csstidy_optimise(&$css) { |
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$this->__construct($css); |
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} |
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/** |
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* Optimises $css after parsing |
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* @access public |
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* @version 1.0 |
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*/ |
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function postparse() { |
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if ($this->parser->get_cfg('preserve_css')) { |
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return; |
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} |
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View Code Duplication |
if ($this->parser->get_cfg('merge_selectors') === 2) { |
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foreach ($this->css as $medium => $value) { |
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$this->merge_selectors($this->css[$medium]); |
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} |
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} |
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View Code Duplication |
if ($this->parser->get_cfg('discard_invalid_selectors')) { |
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foreach ($this->css as $medium => $value) { |
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$this->discard_invalid_selectors($this->css[$medium]); |
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} |
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} |
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if ($this->parser->get_cfg('optimise_shorthands') > 0) { |
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foreach ($this->css as $medium => $value) { |
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foreach ($value as $selector => $value1) { |
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$this->css[$medium][$selector] = csstidy_optimise::merge_4value_shorthands($this->css[$medium][$selector]); |
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if ($this->parser->get_cfg('optimise_shorthands') < 2) { |
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continue; |
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} |
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$this->css[$medium][$selector] = csstidy_optimise::merge_font($this->css[$medium][$selector]); |
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if ($this->parser->get_cfg('optimise_shorthands') < 3) { |
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continue; |
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} |
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$this->css[$medium][$selector] = csstidy_optimise::merge_bg($this->css[$medium][$selector]); |
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if (empty($this->css[$medium][$selector])) { |
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unset($this->css[$medium][$selector]); |
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} |
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} |
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} |
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} |
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} |
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/** |
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* Optimises values |
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* @access public |
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* @version 1.0 |
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*/ |
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function value() { |
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$shorthands = & $GLOBALS['csstidy']['shorthands']; |
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// optimise shorthand properties |
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if (isset($shorthands[$this->property])) { |
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$temp = csstidy_optimise::shorthand($this->value); // FIXME - move |
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if ($temp != $this->value) { |
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$this->parser->log('Optimised shorthand notation (' . $this->property . '): Changed "' . $this->value . '" to "' . $temp . '"', 'Information'); |
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} |
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$this->value = $temp; |
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} |
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// Remove whitespace at ! important |
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if ($this->value != $this->compress_important($this->value)) { |
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$this->parser->log('Optimised !important', 'Information'); |
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} |
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} |
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/** |
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* Optimises shorthands |
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* @access public |
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* @version 1.0 |
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*/ |
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function shorthands() { |
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$shorthands = & $GLOBALS['csstidy']['shorthands']; |
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if (!$this->parser->get_cfg('optimise_shorthands') || $this->parser->get_cfg('preserve_css')) { |
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return; |
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} |
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View Code Duplication |
if ($this->property === 'font' && $this->parser->get_cfg('optimise_shorthands') > 1) { |
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$this->css[$this->at][$this->selector]['font']=''; |
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$this->parser->merge_css_blocks($this->at, $this->selector, csstidy_optimise::dissolve_short_font($this->value)); |
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} |
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View Code Duplication |
if ($this->property === 'background' && $this->parser->get_cfg('optimise_shorthands') > 2) { |
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$this->css[$this->at][$this->selector]['background']=''; |
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$this->parser->merge_css_blocks($this->at, $this->selector, csstidy_optimise::dissolve_short_bg($this->value)); |
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} |
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if (isset($shorthands[$this->property])) { |
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$this->parser->merge_css_blocks($this->at, $this->selector, csstidy_optimise::dissolve_4value_shorthands($this->property, $this->value)); |
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if (is_array($shorthands[$this->property])) { |
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$this->css[$this->at][$this->selector][$this->property] = ''; |
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} |
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} |
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} |
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/** |
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* Optimises a sub-value |
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* @access public |
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* @version 1.0 |
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*/ |
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function subvalue() { |
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$replace_colors = & $GLOBALS['csstidy']['replace_colors']; |
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$this->sub_value = trim($this->sub_value); |
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if ($this->sub_value == '') { // caution : '0' |
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return; |
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} |
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$important = ''; |
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if (csstidy::is_important($this->sub_value)) { |
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$important = '!important'; |
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} |
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$this->sub_value = csstidy::gvw_important($this->sub_value); |
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// Compress font-weight |
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if ($this->property === 'font-weight' && $this->parser->get_cfg('compress_font-weight')) { |
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if ($this->sub_value === 'bold') { |
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$this->sub_value = '700'; |
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$this->parser->log('Optimised font-weight: Changed "bold" to "700"', 'Information'); |
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} else if ($this->sub_value === 'normal') { |
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$this->sub_value = '400'; |
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$this->parser->log('Optimised font-weight: Changed "normal" to "400"', 'Information'); |
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} |
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} |
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$temp = $this->compress_numbers($this->sub_value); |
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if (strcasecmp($temp, $this->sub_value) !== 0) { |
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if (strlen($temp) > strlen($this->sub_value)) { |
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$this->parser->log('Fixed invalid number: Changed "' . $this->sub_value . '" to "' . $temp . '"', 'Warning'); |
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} else { |
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$this->parser->log('Optimised number: Changed "' . $this->sub_value . '" to "' . $temp . '"', 'Information'); |
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} |
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$this->sub_value = $temp; |
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} |
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if ($this->parser->get_cfg('compress_colors')) { |
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$temp = $this->cut_color($this->sub_value); |
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if ($temp !== $this->sub_value) { |
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if (isset($replace_colors[$this->sub_value])) { |
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$this->parser->log('Fixed invalid color name: Changed "' . $this->sub_value . '" to "' . $temp . '"', 'Warning'); |
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} else { |
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$this->parser->log('Optimised color: Changed "' . $this->sub_value . '" to "' . $temp . '"', 'Information'); |
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} |
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$this->sub_value = $temp; |
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} |
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} |
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$this->sub_value .= $important; |
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} |
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/** |
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* Compresses shorthand values. Example: margin:1px 1px 1px 1px -> margin:1px |
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* @param string $value |
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* @access public |
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* @return string |
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* @version 1.0 |
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*/ |
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static function shorthand($value) { |
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$important = ''; |
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if (csstidy::is_important($value)) { |
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$values = csstidy::gvw_important($value); |
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$important = '!important'; |
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} |
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else |
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$values = $value; |
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$values = explode(' ', $values); |
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switch (count($values)) { |
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case 4: |
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if ($values[0] == $values[1] && $values[0] == $values[2] && $values[0] == $values[3]) { |
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return $values[0] . $important; |
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} elseif ($values[1] == $values[3] && $values[0] == $values[2]) { |
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return $values[0] . ' ' . $values[1] . $important; |
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} elseif ($values[1] == $values[3]) { |
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return $values[0] . ' ' . $values[1] . ' ' . $values[2] . $important; |
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} |
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break; |
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case 3: |
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if ($values[0] == $values[1] && $values[0] == $values[2]) { |
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return $values[0] . $important; |
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} elseif ($values[0] == $values[2]) { |
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return $values[0] . ' ' . $values[1] . $important; |
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} |
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break; |
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case 2: |
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if ($values[0] == $values[1]) { |
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return $values[0] . $important; |
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} |
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break; |
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} |
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return $value; |
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} |
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/** |
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* Removes unnecessary whitespace in ! important |
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* @param string $string |
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* @return string |
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* @access public |
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264
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* @version 1.1 |
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*/ |
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function compress_important(&$string) { |
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if (csstidy::is_important($string)) { |
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$string = csstidy::gvw_important($string) . ' !important'; } |
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return $string; |
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} |
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/** |
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* Color compression function. Converts all rgb() values to #-values and uses the short-form if possible. Also replaces 4 color names by #-values. |
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* @param string $color |
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* @return string |
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* @version 1.1 |
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*/ |
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function cut_color($color) { |
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$replace_colors = & $GLOBALS['csstidy']['replace_colors']; |
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// rgb(0,0,0) -> #000000 (or #000 in this case later) |
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if (strtolower(substr($color, 0, 4)) === 'rgb(') { |
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$color_tmp = substr($color, 4, strlen($color) - 5); |
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$color_tmp = explode(',', $color_tmp); |
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for ($i = 0; $i < count($color_tmp); $i++) { |
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$color_tmp[$i] = trim($color_tmp[$i]); |
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if (substr($color_tmp[$i], -1) === '%') { |
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$color_tmp[$i] = round((255 * $color_tmp[$i]) / 100); |
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} |
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290
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if ($color_tmp[$i] > 255) |
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$color_tmp[$i] = 255; |
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292
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} |
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293
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$color = '#'; |
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for ($i = 0; $i < 3; $i++) { |
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if ($color_tmp[$i] < 16) { |
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$color .= '0' . dechex($color_tmp[$i]); |
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297
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|
|
} else { |
|
298
|
|
|
$color .= dechex($color_tmp[$i]); |
|
299
|
|
|
} |
|
300
|
|
|
} |
|
301
|
|
|
} |
|
302
|
|
|
|
|
303
|
|
|
// Fix bad color names |
|
304
|
|
|
if (isset($replace_colors[strtolower($color)])) { |
|
305
|
|
|
$color = $replace_colors[strtolower($color)]; |
|
306
|
|
|
} |
|
307
|
|
|
|
|
308
|
|
|
// #aabbcc -> #abc |
|
309
|
|
|
if (strlen($color) == 7) { |
|
310
|
|
|
$color_temp = strtolower($color); |
|
311
|
|
|
if ($color_temp{0} === '#' && $color_temp{1} == $color_temp{2} && $color_temp{3} == $color_temp{4} && $color_temp{5} == $color_temp{6}) { |
|
312
|
|
|
$color = '#' . $color{1} . $color{3} . $color{5}; |
|
313
|
|
|
} |
|
314
|
|
|
} |
|
315
|
|
|
|
|
316
|
|
|
switch (strtolower($color)) { |
|
317
|
|
|
/* color name -> hex code */ |
|
318
|
|
|
case 'black': return '#000'; |
|
|
|
|
|
|
319
|
|
|
case 'fuchsia': return '#f0f'; |
|
|
|
|
|
|
320
|
|
|
case 'white': return '#fff'; |
|
|
|
|
|
|
321
|
|
|
case 'yellow': return '#ff0'; |
|
|
|
|
|
|
322
|
|
|
|
|
323
|
|
|
/* hex code -> color name */ |
|
324
|
|
|
case '#800000': return 'maroon'; |
|
|
|
|
|
|
325
|
|
|
case '#ffa500': return 'orange'; |
|
|
|
|
|
|
326
|
|
|
case '#808000': return 'olive'; |
|
|
|
|
|
|
327
|
|
|
case '#800080': return 'purple'; |
|
|
|
|
|
|
328
|
|
|
case '#008000': return 'green'; |
|
|
|
|
|
|
329
|
|
|
case '#000080': return 'navy'; |
|
|
|
|
|
|
330
|
|
|
case '#008080': return 'teal'; |
|
|
|
|
|
|
331
|
|
|
case '#c0c0c0': return 'silver'; |
|
|
|
|
|
|
332
|
|
|
case '#808080': return 'gray'; |
|
|
|
|
|
|
333
|
|
|
case '#f00': return 'red'; |
|
|
|
|
|
|
334
|
|
|
} |
|
335
|
|
|
|
|
336
|
|
|
return $color; |
|
337
|
|
|
} |
|
338
|
|
|
|
|
339
|
|
|
/** |
|
340
|
|
|
* Compresses numbers (ie. 1.0 becomes 1 or 1.100 becomes 1.1 ) |
|
341
|
|
|
* @param string $subvalue |
|
342
|
|
|
* @return string |
|
343
|
|
|
* @version 1.2 |
|
344
|
|
|
*/ |
|
345
|
|
|
function compress_numbers($subvalue) { |
|
346
|
|
|
$unit_values = & $GLOBALS['csstidy']['unit_values']; |
|
347
|
|
|
$color_values = & $GLOBALS['csstidy']['color_values']; |
|
348
|
|
|
|
|
349
|
|
|
// for font:1em/1em sans-serif...; |
|
350
|
|
|
if ($this->property === 'font') { |
|
351
|
|
|
$temp = explode('/', $subvalue); |
|
352
|
|
|
} else { |
|
353
|
|
|
$temp = array($subvalue); |
|
354
|
|
|
} |
|
355
|
|
|
for ($l = 0; $l < count($temp); $l++) { |
|
|
|
|
|
|
356
|
|
|
// if we are not dealing with a number at this point, do not optimise anything |
|
357
|
|
|
$number = $this->AnalyseCssNumber($temp[$l]); |
|
358
|
|
|
if ($number === false) { |
|
359
|
|
|
return $subvalue; |
|
360
|
|
|
} |
|
361
|
|
|
|
|
362
|
|
|
// Fix bad colors |
|
363
|
|
|
if (in_array($this->property, $color_values)) { |
|
364
|
|
|
if (strlen($temp[$l]) == 3 || strlen($temp[$l]) == 6) { |
|
365
|
|
|
$temp[$l] = '#' . $temp[$l]; |
|
366
|
|
|
} |
|
367
|
|
|
else { |
|
368
|
|
|
$temp[$l] = "0"; |
|
369
|
|
|
} |
|
370
|
|
|
continue; |
|
371
|
|
|
} |
|
372
|
|
|
|
|
373
|
|
|
if (abs($number[0]) > 0) { |
|
374
|
|
|
if ($number[1] == '' && in_array($this->property, $unit_values, true)) { |
|
375
|
|
|
$number[1] = 'px'; |
|
376
|
|
|
} |
|
377
|
|
|
} else { |
|
378
|
|
|
$number[1] = ''; |
|
379
|
|
|
} |
|
380
|
|
|
|
|
381
|
|
|
$temp[$l] = $number[0] . $number[1]; |
|
382
|
|
|
} |
|
383
|
|
|
|
|
384
|
|
|
return ((count($temp) > 1) ? $temp[0] . '/' . $temp[1] : $temp[0]); |
|
385
|
|
|
} |
|
386
|
|
|
|
|
387
|
|
|
/** |
|
388
|
|
|
* Checks if a given string is a CSS valid number. If it is, |
|
389
|
|
|
* an array containing the value and unit is returned |
|
390
|
|
|
* @param string $string |
|
391
|
|
|
* @return array ('unit' if unit is found or '' if no unit exists, number value) or false if no number |
|
392
|
|
|
*/ |
|
393
|
|
|
function AnalyseCssNumber($string) { |
|
394
|
|
|
// most simple checks first |
|
395
|
|
|
if (strlen($string) == 0 || ctype_alpha($string{0})) { |
|
396
|
|
|
return false; |
|
397
|
|
|
} |
|
398
|
|
|
|
|
399
|
|
|
$units = & $GLOBALS['csstidy']['units']; |
|
400
|
|
|
$return = array(0, ''); |
|
401
|
|
|
|
|
402
|
|
|
$return[0] = floatval($string); |
|
403
|
|
|
if (abs($return[0]) > 0 && abs($return[0]) < 1) { |
|
404
|
|
|
if ($return[0] < 0) { |
|
405
|
|
|
$return[0] = '-' . ltrim(substr($return[0], 1), '0'); |
|
406
|
|
|
} else { |
|
407
|
|
|
$return[0] = ltrim($return[0], '0'); |
|
408
|
|
|
} |
|
409
|
|
|
} |
|
410
|
|
|
|
|
411
|
|
|
// Look for unit and split from value if exists |
|
412
|
|
|
foreach ($units as $unit) { |
|
413
|
|
|
$expectUnitAt = strlen($string) - strlen($unit); |
|
414
|
|
|
if (!($unitInString = stristr($string, $unit))) { // mb_strpos() fails with "false" |
|
415
|
|
|
continue; |
|
416
|
|
|
} |
|
417
|
|
|
$actualPosition = strpos($string, $unitInString); |
|
418
|
|
|
if ($expectUnitAt === $actualPosition) { |
|
419
|
|
|
$return[1] = $unit; |
|
420
|
|
|
$string = substr($string, 0, - strlen($unit)); |
|
421
|
|
|
break; |
|
422
|
|
|
} |
|
423
|
|
|
} |
|
424
|
|
|
if (!is_numeric($string)) { |
|
425
|
|
|
return false; |
|
426
|
|
|
} |
|
427
|
|
|
return $return; |
|
428
|
|
|
} |
|
429
|
|
|
|
|
430
|
|
|
/** |
|
431
|
|
|
* Merges selectors with same properties. Example: a{color:red} b{color:red} -> a,b{color:red} |
|
432
|
|
|
* Very basic and has at least one bug. Hopefully there is a replacement soon. |
|
433
|
|
|
* @param array $array |
|
434
|
|
|
* @return array |
|
435
|
|
|
* @access public |
|
436
|
|
|
* @version 1.2 |
|
437
|
|
|
*/ |
|
438
|
|
|
function merge_selectors(&$array) { |
|
439
|
|
|
$css = $array; |
|
440
|
|
|
foreach ($css as $key => $value) { |
|
441
|
|
|
if (!isset($css[$key])) { |
|
442
|
|
|
continue; |
|
443
|
|
|
} |
|
444
|
|
|
$newsel = ''; |
|
|
|
|
|
|
445
|
|
|
|
|
446
|
|
|
// Check if properties also exist in another selector |
|
447
|
|
|
$keys = array(); |
|
448
|
|
|
// PHP bug (?) without $css = $array; here |
|
449
|
|
|
foreach ($css as $selector => $vali) { |
|
450
|
|
|
if ($selector == $key) { |
|
451
|
|
|
continue; |
|
452
|
|
|
} |
|
453
|
|
|
|
|
454
|
|
|
if ($css[$key] === $vali) { |
|
455
|
|
|
$keys[] = $selector; |
|
456
|
|
|
} |
|
457
|
|
|
} |
|
458
|
|
|
|
|
459
|
|
|
if (!empty($keys)) { |
|
460
|
|
|
$newsel = $key; |
|
461
|
|
|
unset($css[$key]); |
|
462
|
|
|
foreach ($keys as $selector) { |
|
463
|
|
|
unset($css[$selector]); |
|
464
|
|
|
$newsel .= ',' . $selector; |
|
465
|
|
|
} |
|
466
|
|
|
$css[$newsel] = $value; |
|
467
|
|
|
} |
|
468
|
|
|
} |
|
469
|
|
|
$array = $css; |
|
470
|
|
|
} |
|
471
|
|
|
|
|
472
|
|
|
/** |
|
473
|
|
|
* Removes invalid selectors and their corresponding rule-sets as |
|
474
|
|
|
* defined by 4.1.7 in REC-CSS2. This is a very rudimentary check |
|
475
|
|
|
* and should be replaced by a full-blown parsing algorithm or |
|
476
|
|
|
* regular expression |
|
477
|
|
|
* @version 1.4 |
|
478
|
|
|
*/ |
|
479
|
|
|
function discard_invalid_selectors(&$array) { |
|
480
|
|
|
$invalid = array('+' => true, '~' => true, ',' => true, '>' => true); |
|
|
|
|
|
|
481
|
|
|
foreach ($array as $selector => $decls) { |
|
482
|
|
|
$ok = true; |
|
483
|
|
|
$selectors = array_map('trim', explode(',', $selector)); |
|
484
|
|
|
foreach ($selectors as $s) { |
|
485
|
|
|
$simple_selectors = preg_split('/\s*[+>~\s]\s*/', $s); |
|
486
|
|
|
foreach ($simple_selectors as $ss) { |
|
487
|
|
|
if ($ss === '') |
|
488
|
|
|
$ok = false; |
|
489
|
|
|
// could also check $ss for internal structure, |
|
490
|
|
|
// but that probably would be too slow |
|
491
|
|
|
} |
|
492
|
|
|
} |
|
493
|
|
|
if (!$ok) |
|
494
|
|
|
unset($array[$selector]); |
|
495
|
|
|
} |
|
496
|
|
|
} |
|
497
|
|
|
|
|
498
|
|
|
/** |
|
499
|
|
|
* Dissolves properties like padding:10px 10px 10px to padding-top:10px;padding-bottom:10px;... |
|
500
|
|
|
* @param string $property |
|
501
|
|
|
* @param string $value |
|
502
|
|
|
* @return array |
|
503
|
|
|
* @version 1.0 |
|
504
|
|
|
* @see merge_4value_shorthands() |
|
505
|
|
|
*/ |
|
506
|
|
|
static function dissolve_4value_shorthands($property, $value) { |
|
507
|
|
|
$shorthands = & $GLOBALS['csstidy']['shorthands']; |
|
508
|
|
|
if (!is_array($shorthands[$property])) { |
|
509
|
|
|
$return[$property] = $value; |
|
|
|
|
|
|
510
|
|
|
return $return; |
|
511
|
|
|
} |
|
512
|
|
|
|
|
513
|
|
|
$important = ''; |
|
514
|
|
|
if (csstidy::is_important($value)) { |
|
515
|
|
|
$value = csstidy::gvw_important($value); |
|
516
|
|
|
$important = '!important'; |
|
517
|
|
|
} |
|
518
|
|
|
$values = explode(' ', $value); |
|
519
|
|
|
|
|
520
|
|
|
|
|
521
|
|
|
$return = array(); |
|
522
|
|
|
if (count($values) == 4) { |
|
523
|
|
View Code Duplication |
for ($i = 0; $i < 4; $i++) { |
|
524
|
|
|
$return[$shorthands[$property][$i]] = $values[$i] . $important; |
|
525
|
|
|
} |
|
526
|
|
|
} elseif (count($values) == 3) { |
|
527
|
|
|
$return[$shorthands[$property][0]] = $values[0] . $important; |
|
528
|
|
|
$return[$shorthands[$property][1]] = $values[1] . $important; |
|
529
|
|
|
$return[$shorthands[$property][3]] = $values[1] . $important; |
|
530
|
|
|
$return[$shorthands[$property][2]] = $values[2] . $important; |
|
531
|
|
|
} elseif (count($values) == 2) { |
|
532
|
|
|
for ($i = 0; $i < 4; $i++) { |
|
533
|
|
|
$return[$shorthands[$property][$i]] = (($i % 2 != 0)) ? $values[1] . $important : $values[0] . $important; |
|
534
|
|
|
} |
|
535
|
|
|
} else { |
|
536
|
|
View Code Duplication |
for ($i = 0; $i < 4; $i++) { |
|
537
|
|
|
$return[$shorthands[$property][$i]] = $values[0] . $important; |
|
538
|
|
|
} |
|
539
|
|
|
} |
|
540
|
|
|
|
|
541
|
|
|
return $return; |
|
542
|
|
|
} |
|
543
|
|
|
|
|
544
|
|
|
/** |
|
545
|
|
|
* Explodes a string as explode() does, however, not if $sep is escaped or within a string. |
|
546
|
|
|
* @param string $sep seperator |
|
547
|
|
|
* @param string $string |
|
548
|
|
|
* @return array |
|
549
|
|
|
* @version 1.0 |
|
550
|
|
|
*/ |
|
551
|
|
|
static function explode_ws($sep, $string) { |
|
552
|
|
|
$status = 'st'; |
|
553
|
|
|
$to = ''; |
|
554
|
|
|
|
|
555
|
|
|
$output = array(); |
|
556
|
|
|
$num = 0; |
|
557
|
|
|
for ($i = 0, $len = strlen($string); $i < $len; $i++) { |
|
558
|
|
|
switch ($status) { |
|
559
|
|
|
case 'st': |
|
560
|
|
|
if ($string{$i} == $sep && !csstidy::escaped($string, $i)) { |
|
561
|
|
|
++$num; |
|
562
|
|
|
} elseif ($string{$i} === '"' || $string{$i} === '\'' || $string{$i} === '(' && !csstidy::escaped($string, $i)) { |
|
563
|
|
|
$status = 'str'; |
|
564
|
|
|
$to = ($string{$i} === '(') ? ')' : $string{$i}; |
|
565
|
|
|
(isset($output[$num])) ? $output[$num] .= $string{$i} : $output[$num] = $string{$i}; |
|
566
|
|
|
} else { |
|
567
|
|
|
(isset($output[$num])) ? $output[$num] .= $string{$i} : $output[$num] = $string{$i}; |
|
568
|
|
|
} |
|
569
|
|
|
break; |
|
570
|
|
|
|
|
571
|
|
|
case 'str': |
|
572
|
|
|
if ($string{$i} == $to && !csstidy::escaped($string, $i)) { |
|
573
|
|
|
$status = 'st'; |
|
574
|
|
|
} |
|
575
|
|
|
(isset($output[$num])) ? $output[$num] .= $string{$i} : $output[$num] = $string{$i}; |
|
576
|
|
|
break; |
|
577
|
|
|
} |
|
578
|
|
|
} |
|
579
|
|
|
|
|
580
|
|
|
if (isset($output[0])) { |
|
581
|
|
|
return $output; |
|
582
|
|
|
} else { |
|
583
|
|
|
return array($output); |
|
584
|
|
|
} |
|
585
|
|
|
} |
|
586
|
|
|
|
|
587
|
|
|
/** |
|
588
|
|
|
* Merges Shorthand properties again, the opposite of dissolve_4value_shorthands() |
|
589
|
|
|
* @param array $array |
|
590
|
|
|
* @return array |
|
591
|
|
|
* @version 1.2 |
|
592
|
|
|
* @see dissolve_4value_shorthands() |
|
593
|
|
|
*/ |
|
594
|
|
|
static function merge_4value_shorthands($array) { |
|
595
|
|
|
$return = $array; |
|
596
|
|
|
$shorthands = & $GLOBALS['csstidy']['shorthands']; |
|
597
|
|
|
|
|
598
|
|
|
foreach ($shorthands as $key => $value) { |
|
599
|
|
|
if (isset($array[$value[0]]) && isset($array[$value[1]]) |
|
600
|
|
|
&& isset($array[$value[2]]) && isset($array[$value[3]]) && $value !== 0) { |
|
601
|
|
|
$return[$key] = ''; |
|
602
|
|
|
|
|
603
|
|
|
$important = ''; |
|
604
|
|
|
for ($i = 0; $i < 4; $i++) { |
|
605
|
|
|
$val = $array[$value[$i]]; |
|
606
|
|
|
if (csstidy::is_important($val)) { |
|
607
|
|
|
$important = '!important'; |
|
608
|
|
|
$return[$key] .= csstidy::gvw_important($val) . ' '; |
|
609
|
|
|
} else { |
|
610
|
|
|
$return[$key] .= $val . ' '; |
|
611
|
|
|
} |
|
612
|
|
|
unset($return[$value[$i]]); |
|
613
|
|
|
} |
|
614
|
|
|
$return[$key] = csstidy_optimise::shorthand(trim($return[$key] . $important)); |
|
615
|
|
|
} |
|
616
|
|
|
} |
|
617
|
|
|
return $return; |
|
618
|
|
|
} |
|
619
|
|
|
|
|
620
|
|
|
/** |
|
621
|
|
|
* Dissolve background property |
|
622
|
|
|
* @param string $str_value |
|
623
|
|
|
* @return array |
|
624
|
|
|
* @version 1.0 |
|
625
|
|
|
* @see merge_bg() |
|
626
|
|
|
* @todo full CSS 3 compliance |
|
|
|
|
|
|
627
|
|
|
*/ |
|
628
|
|
|
static function dissolve_short_bg($str_value) { |
|
629
|
|
|
// don't try to explose background gradient ! |
|
630
|
|
|
if (stripos($str_value, "gradient(")!==FALSE) |
|
631
|
|
|
return array('background'=>$str_value); |
|
632
|
|
|
|
|
633
|
|
|
$background_prop_default = & $GLOBALS['csstidy']['background_prop_default']; |
|
634
|
|
|
$repeat = array('repeat', 'repeat-x', 'repeat-y', 'no-repeat', 'space'); |
|
635
|
|
|
$attachment = array('scroll', 'fixed', 'local'); |
|
636
|
|
|
$clip = array('border', 'padding'); |
|
637
|
|
|
$origin = array('border', 'padding', 'content'); |
|
638
|
|
|
$pos = array('top', 'center', 'bottom', 'left', 'right'); |
|
639
|
|
|
$important = ''; |
|
640
|
|
|
$return = array('background-image' => null, 'background-size' => null, 'background-repeat' => null, 'background-position' => null, 'background-attachment' => null, 'background-clip' => null, 'background-origin' => null, 'background-color' => null); |
|
641
|
|
|
|
|
642
|
|
|
if (csstidy::is_important($str_value)) { |
|
643
|
|
|
$important = ' !important'; |
|
644
|
|
|
$str_value = csstidy::gvw_important($str_value); |
|
645
|
|
|
} |
|
646
|
|
|
|
|
647
|
|
|
$str_value = csstidy_optimise::explode_ws(',', $str_value); |
|
648
|
|
|
for ($i = 0; $i < count($str_value); $i++) { |
|
|
|
|
|
|
649
|
|
|
$have['clip'] = false; |
|
|
|
|
|
|
650
|
|
|
$have['pos'] = false; |
|
|
|
|
|
|
651
|
|
|
$have['color'] = false; |
|
652
|
|
|
$have['bg'] = false; |
|
653
|
|
|
|
|
654
|
|
|
if (is_array($str_value[$i])) { |
|
655
|
|
|
$str_value[$i] = $str_value[$i][0]; |
|
656
|
|
|
} |
|
657
|
|
|
$str_value[$i] = csstidy_optimise::explode_ws(' ', trim($str_value[$i])); |
|
658
|
|
|
|
|
659
|
|
|
for ($j = 0; $j < count($str_value[$i]); $j++) { |
|
|
|
|
|
|
660
|
|
|
if ($have['bg'] === false && (substr($str_value[$i][$j], 0, 4) === 'url(' || $str_value[$i][$j] === 'none')) { |
|
661
|
|
|
$return['background-image'] .= $str_value[$i][$j] . ','; |
|
662
|
|
|
$have['bg'] = true; |
|
663
|
|
View Code Duplication |
} elseif (in_array($str_value[$i][$j], $repeat, true)) { |
|
664
|
|
|
$return['background-repeat'] .= $str_value[$i][$j] . ','; |
|
665
|
|
|
} elseif (in_array($str_value[$i][$j], $attachment, true)) { |
|
666
|
|
|
$return['background-attachment'] .= $str_value[$i][$j] . ','; |
|
667
|
|
|
} elseif (in_array($str_value[$i][$j], $clip, true) && !$have['clip']) { |
|
668
|
|
|
$return['background-clip'] .= $str_value[$i][$j] . ','; |
|
669
|
|
|
$have['clip'] = true; |
|
670
|
|
View Code Duplication |
} elseif (in_array($str_value[$i][$j], $origin, true)) { |
|
671
|
|
|
$return['background-origin'] .= $str_value[$i][$j] . ','; |
|
672
|
|
|
} elseif ($str_value[$i][$j]{0} === '(') { |
|
673
|
|
|
$return['background-size'] .= substr($str_value[$i][$j], 1, -1) . ','; |
|
674
|
|
|
} elseif (in_array($str_value[$i][$j], $pos, true) || is_numeric($str_value[$i][$j]{0}) || $str_value[$i][$j]{0} === null || $str_value[$i][$j]{0} === '-' || $str_value[$i][$j]{0} === '.') { |
|
675
|
|
|
$return['background-position'] .= $str_value[$i][$j]; |
|
676
|
|
|
if (!$have['pos']) |
|
677
|
|
|
$return['background-position'] .= ' '; else |
|
678
|
|
|
$return['background-position'].= ','; |
|
679
|
|
|
$have['pos'] = true; |
|
680
|
|
|
} |
|
681
|
|
|
elseif (!$have['color']) { |
|
682
|
|
|
$return['background-color'] .= $str_value[$i][$j] . ','; |
|
683
|
|
|
$have['color'] = true; |
|
684
|
|
|
} |
|
685
|
|
|
} |
|
686
|
|
|
} |
|
687
|
|
|
|
|
688
|
|
|
foreach ($background_prop_default as $bg_prop => $default_value) { |
|
689
|
|
View Code Duplication |
if ($return[$bg_prop] !== null) { |
|
690
|
|
|
$return[$bg_prop] = substr($return[$bg_prop], 0, -1) . $important; |
|
691
|
|
|
} |
|
692
|
|
|
else |
|
693
|
|
|
$return[$bg_prop] = $default_value . $important; |
|
694
|
|
|
} |
|
695
|
|
|
return $return; |
|
696
|
|
|
} |
|
697
|
|
|
|
|
698
|
|
|
/** |
|
699
|
|
|
* Merges all background properties |
|
700
|
|
|
* @param array $input_css |
|
701
|
|
|
* @return array |
|
702
|
|
|
* @version 1.0 |
|
703
|
|
|
* @see dissolve_short_bg() |
|
704
|
|
|
* @todo full CSS 3 compliance |
|
|
|
|
|
|
705
|
|
|
*/ |
|
706
|
|
|
static function merge_bg($input_css) { |
|
707
|
|
|
$background_prop_default = & $GLOBALS['csstidy']['background_prop_default']; |
|
708
|
|
|
// Max number of background images. CSS3 not yet fully implemented |
|
709
|
|
|
$number_of_values = @max(count(csstidy_optimise::explode_ws(',', $input_css['background-image'])), count(csstidy_optimise::explode_ws(',', $input_css['background-color'])), 1); |
|
710
|
|
|
// Array with background images to check if BG image exists |
|
711
|
|
|
$bg_img_array = @csstidy_optimise::explode_ws(',', csstidy::gvw_important($input_css['background-image'])); |
|
712
|
|
|
$new_bg_value = ''; |
|
713
|
|
|
$important = ''; |
|
714
|
|
|
|
|
715
|
|
|
// if background properties is here and not empty, don't try anything |
|
716
|
|
|
if (isset($input_css['background']) AND $input_css['background']) |
|
|
|
|
|
|
717
|
|
|
return $input_css; |
|
718
|
|
|
|
|
719
|
|
|
for ($i = 0; $i < $number_of_values; $i++) { |
|
720
|
|
|
foreach ($background_prop_default as $bg_property => $default_value) { |
|
721
|
|
|
// Skip if property does not exist |
|
722
|
|
|
if (!isset($input_css[$bg_property])) { |
|
723
|
|
|
continue; |
|
724
|
|
|
} |
|
725
|
|
|
|
|
726
|
|
|
$cur_value = $input_css[$bg_property]; |
|
727
|
|
|
// skip all optimisation if gradient() somewhere |
|
728
|
|
|
if (stripos($cur_value, "gradient(")!==FALSE) |
|
729
|
|
|
return $input_css; |
|
730
|
|
|
|
|
731
|
|
|
// Skip some properties if there is no background image |
|
732
|
|
|
if ((!isset($bg_img_array[$i]) || $bg_img_array[$i] === 'none') |
|
733
|
|
|
&& ($bg_property === 'background-size' || $bg_property === 'background-position' |
|
734
|
|
|
|| $bg_property === 'background-attachment' || $bg_property === 'background-repeat')) { |
|
735
|
|
|
continue; |
|
736
|
|
|
} |
|
737
|
|
|
|
|
738
|
|
|
// Remove !important |
|
739
|
|
|
if (csstidy::is_important($cur_value)) { |
|
740
|
|
|
$important = ' !important'; |
|
741
|
|
|
$cur_value = csstidy::gvw_important($cur_value); |
|
742
|
|
|
} |
|
743
|
|
|
|
|
744
|
|
|
// Do not add default values |
|
745
|
|
|
if ($cur_value === $default_value) { |
|
746
|
|
|
continue; |
|
747
|
|
|
} |
|
748
|
|
|
|
|
749
|
|
|
$temp = csstidy_optimise::explode_ws(',', $cur_value); |
|
750
|
|
|
|
|
751
|
|
|
if (isset($temp[$i])) { |
|
752
|
|
|
if ($bg_property === 'background-size') { |
|
753
|
|
|
$new_bg_value .= '(' . $temp[$i] . ') '; |
|
754
|
|
|
} else { |
|
755
|
|
|
$new_bg_value .= $temp[$i] . ' '; |
|
756
|
|
|
} |
|
757
|
|
|
} |
|
758
|
|
|
} |
|
759
|
|
|
|
|
760
|
|
|
$new_bg_value = trim($new_bg_value); |
|
761
|
|
|
if ($i != $number_of_values - 1) |
|
762
|
|
|
$new_bg_value .= ','; |
|
763
|
|
|
} |
|
764
|
|
|
|
|
765
|
|
|
// Delete all background-properties |
|
766
|
|
|
foreach ($background_prop_default as $bg_property => $default_value) { |
|
767
|
|
|
unset($input_css[$bg_property]); |
|
768
|
|
|
} |
|
769
|
|
|
|
|
770
|
|
|
// Add new background property |
|
771
|
|
|
if ($new_bg_value !== '') |
|
772
|
|
|
$input_css['background'] = $new_bg_value . $important; |
|
773
|
|
|
elseif(isset ($input_css['background'])) |
|
774
|
|
|
$input_css['background'] = 'none'; |
|
775
|
|
|
|
|
776
|
|
|
return $input_css; |
|
777
|
|
|
} |
|
778
|
|
|
|
|
779
|
|
|
/** |
|
780
|
|
|
* Dissolve font property |
|
781
|
|
|
* @param string $str_value |
|
782
|
|
|
* @return array |
|
783
|
|
|
* @version 1.3 |
|
784
|
|
|
* @see merge_font() |
|
785
|
|
|
*/ |
|
786
|
|
|
static function dissolve_short_font($str_value) { |
|
787
|
|
|
$font_prop_default = & $GLOBALS['csstidy']['font_prop_default']; |
|
788
|
|
|
$font_weight = array('normal', 'bold', 'bolder', 'lighter', 100, 200, 300, 400, 500, 600, 700, 800, 900); |
|
789
|
|
|
$font_variant = array('normal', 'small-caps'); |
|
790
|
|
|
$font_style = array('normal', 'italic', 'oblique'); |
|
791
|
|
|
$important = ''; |
|
792
|
|
|
$return = array('font-style' => null, 'font-variant' => null, 'font-weight' => null, 'font-size' => null, 'line-height' => null, 'font-family' => null); |
|
793
|
|
|
|
|
794
|
|
|
if (csstidy::is_important($str_value)) { |
|
795
|
|
|
$important = '!important'; |
|
796
|
|
|
$str_value = csstidy::gvw_important($str_value); |
|
797
|
|
|
} |
|
798
|
|
|
|
|
799
|
|
|
$have['style'] = false; |
|
|
|
|
|
|
800
|
|
|
$have['variant'] = false; |
|
801
|
|
|
$have['weight'] = false; |
|
802
|
|
|
$have['size'] = false; |
|
803
|
|
|
// Detects if font-family consists of several words w/o quotes |
|
804
|
|
|
$multiwords = false; |
|
805
|
|
|
|
|
806
|
|
|
// Workaround with multiple font-family |
|
807
|
|
|
$str_value = csstidy_optimise::explode_ws(',', trim($str_value)); |
|
808
|
|
|
|
|
809
|
|
|
$str_value[0] = csstidy_optimise::explode_ws(' ', trim($str_value[0])); |
|
810
|
|
|
|
|
811
|
|
|
for ($j = 0; $j < count($str_value[0]); $j++) { |
|
|
|
|
|
|
812
|
|
|
if ($have['weight'] === false && in_array($str_value[0][$j], $font_weight)) { |
|
813
|
|
|
$return['font-weight'] = $str_value[0][$j]; |
|
814
|
|
|
$have['weight'] = true; |
|
815
|
|
|
} elseif ($have['variant'] === false && in_array($str_value[0][$j], $font_variant)) { |
|
816
|
|
|
$return['font-variant'] = $str_value[0][$j]; |
|
817
|
|
|
$have['variant'] = true; |
|
818
|
|
|
} elseif ($have['style'] === false && in_array($str_value[0][$j], $font_style)) { |
|
819
|
|
|
$return['font-style'] = $str_value[0][$j]; |
|
820
|
|
|
$have['style'] = true; |
|
821
|
|
|
} elseif ($have['size'] === false && (is_numeric($str_value[0][$j]{0}) || $str_value[0][$j]{0} === null || $str_value[0][$j]{0} === '.')) { |
|
822
|
|
|
$size = csstidy_optimise::explode_ws('/', trim($str_value[0][$j])); |
|
823
|
|
|
$return['font-size'] = $size[0]; |
|
824
|
|
|
if (isset($size[1])) { |
|
825
|
|
|
$return['line-height'] = $size[1]; |
|
826
|
|
|
} else { |
|
827
|
|
|
$return['line-height'] = ''; // don't add 'normal' ! |
|
828
|
|
|
} |
|
829
|
|
|
$have['size'] = true; |
|
830
|
|
|
} else { |
|
831
|
|
|
if (isset($return['font-family'])) { |
|
832
|
|
|
$return['font-family'] .= ' ' . $str_value[0][$j]; |
|
833
|
|
|
$multiwords = true; |
|
834
|
|
|
} else { |
|
835
|
|
|
$return['font-family'] = $str_value[0][$j]; |
|
836
|
|
|
} |
|
837
|
|
|
} |
|
838
|
|
|
} |
|
839
|
|
|
// add quotes if we have several qords in font-family |
|
840
|
|
|
if ($multiwords !== false) { |
|
841
|
|
|
$return['font-family'] = '"' . $return['font-family'] . '"'; |
|
842
|
|
|
} |
|
843
|
|
|
$i = 1; |
|
844
|
|
|
while (isset($str_value[$i])) { |
|
845
|
|
|
$return['font-family'] .= ',' . trim($str_value[$i]); |
|
846
|
|
|
$i++; |
|
847
|
|
|
} |
|
848
|
|
|
|
|
849
|
|
|
// Fix for 100 and more font-size |
|
850
|
|
|
if ($have['size'] === false && isset($return['font-weight']) && |
|
851
|
|
|
is_numeric($return['font-weight']{0})) { |
|
852
|
|
|
$return['font-size'] = $return['font-weight']; |
|
853
|
|
|
unset($return['font-weight']); |
|
854
|
|
|
} |
|
855
|
|
|
|
|
856
|
|
|
foreach ($font_prop_default as $font_prop => $default_value) { |
|
857
|
|
View Code Duplication |
if ($return[$font_prop] !== null) { |
|
858
|
|
|
$return[$font_prop] = $return[$font_prop] . $important; |
|
859
|
|
|
} |
|
860
|
|
|
else |
|
861
|
|
|
$return[$font_prop] = $default_value . $important; |
|
862
|
|
|
} |
|
863
|
|
|
return $return; |
|
864
|
|
|
} |
|
865
|
|
|
|
|
866
|
|
|
/** |
|
867
|
|
|
* Merges all fonts properties |
|
868
|
|
|
* @param array $input_css |
|
869
|
|
|
* @return array |
|
870
|
|
|
* @version 1.3 |
|
871
|
|
|
* @see dissolve_short_font() |
|
872
|
|
|
*/ |
|
873
|
|
|
static function merge_font($input_css) { |
|
874
|
|
|
$font_prop_default = & $GLOBALS['csstidy']['font_prop_default']; |
|
875
|
|
|
$new_font_value = ''; |
|
876
|
|
|
$important = ''; |
|
877
|
|
|
// Skip if not font-family and font-size set |
|
878
|
|
|
if (isset($input_css['font-family']) && isset($input_css['font-size'])) { |
|
879
|
|
|
// fix several words in font-family - add quotes |
|
880
|
|
|
if (isset($input_css['font-family'])) { |
|
881
|
|
|
$families = explode(",", $input_css['font-family']); |
|
882
|
|
|
$result_families = array(); |
|
883
|
|
|
foreach ($families as $family) { |
|
884
|
|
|
$family = trim($family); |
|
885
|
|
|
$len = strlen($family); |
|
886
|
|
|
if (strpos($family, " ") && |
|
887
|
|
|
!(($family{0} == '"' && $family{$len - 1} == '"') || |
|
888
|
|
|
($family{0} == "'" && $family{$len - 1} == "'"))) { |
|
889
|
|
|
$family = '"' . $family . '"'; |
|
890
|
|
|
} |
|
891
|
|
|
$result_families[] = $family; |
|
892
|
|
|
} |
|
893
|
|
|
$input_css['font-family'] = implode(",", $result_families); |
|
894
|
|
|
} |
|
895
|
|
|
foreach ($font_prop_default as $font_property => $default_value) { |
|
896
|
|
|
|
|
897
|
|
|
// Skip if property does not exist |
|
898
|
|
|
if (!isset($input_css[$font_property])) { |
|
899
|
|
|
continue; |
|
900
|
|
|
} |
|
901
|
|
|
|
|
902
|
|
|
$cur_value = $input_css[$font_property]; |
|
903
|
|
|
|
|
904
|
|
|
// Skip if default value is used |
|
905
|
|
|
if ($cur_value === $default_value) { |
|
906
|
|
|
continue; |
|
907
|
|
|
} |
|
908
|
|
|
|
|
909
|
|
|
// Remove !important |
|
910
|
|
|
if (csstidy::is_important($cur_value)) { |
|
911
|
|
|
$important = '!important'; |
|
912
|
|
|
$cur_value = csstidy::gvw_important($cur_value); |
|
913
|
|
|
} |
|
914
|
|
|
|
|
915
|
|
|
$new_font_value .= $cur_value; |
|
916
|
|
|
// Add delimiter |
|
917
|
|
|
$new_font_value .= ( $font_property === 'font-size' && |
|
918
|
|
|
isset($input_css['line-height'])) ? '/' : ' '; |
|
919
|
|
|
} |
|
920
|
|
|
|
|
921
|
|
|
$new_font_value = trim($new_font_value); |
|
922
|
|
|
|
|
923
|
|
|
// Delete all font-properties |
|
924
|
|
|
foreach ($font_prop_default as $font_property => $default_value) { |
|
925
|
|
|
if ($font_property!=='font' OR !$new_font_value) |
|
|
|
|
|
|
926
|
|
|
unset($input_css[$font_property]); |
|
927
|
|
|
} |
|
928
|
|
|
|
|
929
|
|
|
// Add new font property |
|
930
|
|
|
if ($new_font_value !== '') { |
|
931
|
|
|
$input_css['font'] = $new_font_value . $important; |
|
932
|
|
|
} |
|
933
|
|
|
} |
|
934
|
|
|
|
|
935
|
|
|
return $input_css; |
|
936
|
|
|
} |
|
937
|
|
|
|
|
938
|
|
|
} |
|
939
|
|
|
|
Automattic /
jetpack
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In PHP it is possible to write to properties without declaring them. For example, the following is perfectly valid PHP code:
Generally, it is a good practice to explictly declare properties to avoid accidental typos and provide IDE auto-completion: