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1290 lines
37 KiB
PHP
1290 lines
37 KiB
PHP
<?php
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/**
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* CSSTidy - CSS Parser and Optimiser
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*
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* CSS Parser class
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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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* @author Cedric Morin (cedric at yterium dot com) 2010-2012
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* @author Christopher Finke (cfinke at gmail.com) 2012
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* @author Mark Scherer (remove $GLOBALS once and for all + PHP5.4 comp) 2012
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*/
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/**
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* Defines ctype functions if required
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* @todo make them methods of csstidy class
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* @version 1.0
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*/
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if (!function_exists('ctype_space')) {
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/* ctype_space Check for whitespace character(s) */
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function ctype_space($text) {
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return!preg_match("/[^\s\r\n\t\f]/", $text);
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}
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}
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if (!function_exists('ctype_alpha')) {
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/* ctype_alpha Check for alphabetic character(s) */
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function ctype_alpha($text) {
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return preg_match("/[a-zA-Z]/", $text);
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}
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}
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/**
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* Defines constants
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* @todo //TODO: make them class constants of csstidy
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*/
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define('AT_START', 1);
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define('AT_END', 2);
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define('SEL_START', 3);
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define('SEL_END', 4);
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define('PROPERTY', 5);
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define('VALUE', 6);
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define('COMMENT', 7);
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define('DEFAULT_AT', 41);
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/**
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* Contains a class for printing CSS code
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*
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* @version 1.0
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*/
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require('class.csstidy_print.php');
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/**
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* Contains a class for optimising CSS code
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*
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* @version 1.0
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*/
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require('class.csstidy_optimise.php');
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/**
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* CSS Parser class
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*
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* This class represents a CSS parser which reads CSS code and saves it in an array.
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* In opposite to most other CSS parsers, it does not use regular expressions and
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* thus has full CSS2 support and a higher reliability.
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* Additional to that it applies some optimisations and fixes to the CSS code.
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* An online version should be available here: http://cdburnerxp.se/cssparse/css_optimiser.php
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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 1.5.2
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*/
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class csstidy {
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/**
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* Saves the parsed CSS. This array is empty if preserve_css is on.
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* @var array
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* @access public
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*/
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public $css = array();
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/**
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* Saves the parsed CSS (raw)
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* @var array
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* @access private
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*/
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public $tokens = array();
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/**
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* Printer class
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* @see csstidy_print
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* @var object
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* @access public
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*/
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public $print;
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/**
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* Optimiser class
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* @see csstidy_optimise
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* @var object
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* @access private
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*/
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public $optimise;
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/**
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* Saves the CSS charset (@charset)
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* @var string
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* @access private
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*/
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public $charset = '';
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/**
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* Saves all @import URLs
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* @var array
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* @access private
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*/
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public $import = array();
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/**
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* Saves the namespace
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* @var string
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* @access private
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*/
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public $namespace = '';
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/**
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* Contains the version of csstidy
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* @var string
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* @access private
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*/
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public $version = '1.5.2';
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/**
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* Stores the settings
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* @var array
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* @access private
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*/
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public $settings = array();
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/**
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* Saves the parser-status.
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*
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* Possible values:
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* - is = in selector
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* - ip = in property
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* - iv = in value
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* - instr = in string (started at " or ' or ( )
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* - ic = in comment (ignore everything)
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* - at = in @-block
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*
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* @var string
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* @access private
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*/
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public $status = 'is';
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/**
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* Saves the current at rule (@media)
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* @var string
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* @access private
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*/
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public $at = '';
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/**
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* Saves the at rule for next selector (during @font-face or other @)
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* @var string
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* @access private
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*/
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public $next_selector_at = '';
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/**
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* Saves the current selector
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* @var string
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* @access private
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*/
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public $selector = '';
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/**
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* Saves the current property
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* @var string
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* @access private
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*/
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public $property = '';
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/**
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* Saves the position of , in selectors
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* @var array
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* @access private
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*/
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public $sel_separate = array();
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/**
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* Saves the current value
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* @var string
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* @access private
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*/
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public $value = '';
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/**
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* Saves the current sub-value
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*
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* Example for a subvalue:
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* background:url(foo.png) red no-repeat;
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* "url(foo.png)", "red", and "no-repeat" are subvalues,
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* seperated by whitespace
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* @var string
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* @access private
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*/
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public $sub_value = '';
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/**
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* Array which saves all subvalues for a property.
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* @var array
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* @see sub_value
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* @access private
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*/
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public $sub_value_arr = array();
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/**
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* Saves the stack of characters that opened the current strings
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* @var array
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* @access private
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*/
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public $str_char = array();
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public $cur_string = array();
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/**
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* Status from which the parser switched to ic or instr
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* @var array
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* @access private
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*/
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public $from = array();
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/**
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/**
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* =true if in invalid at-rule
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* @var bool
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* @access private
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*/
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public $invalid_at = false;
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/**
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* =true if something has been added to the current selector
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* @var bool
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* @access private
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*/
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public $added = false;
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/**
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* Array which saves the message log
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* @var array
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* @access private
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*/
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public $log = array();
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/**
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* Saves the line number
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* @var integer
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* @access private
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*/
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public $line = 1;
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/**
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* Marks if we need to leave quotes for a string
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* @var array
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* @access private
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*/
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public $quoted_string = array();
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/**
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* List of tokens
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* @var string
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*/
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public $tokens_list = "";
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/**
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* Various CSS Data for CSSTidy
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* @var array
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*/
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public $data = array();
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/**
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* Loads standard template and sets default settings
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* @access private
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* @version 1.3
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*/
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public function __construct() {
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$data = array();
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include('data.inc.php');
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$this->data = $data;
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$this->settings['remove_bslash'] = true;
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$this->settings['compress_colors'] = true;
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$this->settings['compress_font-weight'] = true;
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$this->settings['lowercase_s'] = false;
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/*
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1 common shorthands optimization
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2 + font property optimization
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3 + background property optimization
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*/
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$this->settings['optimise_shorthands'] = 1;
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$this->settings['remove_last_;'] = true;
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/* rewrite all properties with low case, better for later gzip OK, safe*/
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$this->settings['case_properties'] = 1;
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/* sort properties in alpabetic order, better for later gzip
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* but can cause trouble in case of overiding same propertie or using hack
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*/
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$this->settings['sort_properties'] = false;
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/*
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1, 3, 5, etc -- enable sorting selectors inside @media: a{}b{}c{}
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2, 5, 8, etc -- enable sorting selectors inside one CSS declaration: a,b,c{}
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preserve order by default cause it can break functionnality
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*/
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$this->settings['sort_selectors'] = 0;
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/* is dangeroues to be used: CSS is broken sometimes */
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$this->settings['merge_selectors'] = 0;
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/* preserve or not browser hacks */
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$this->settings['discard_invalid_selectors'] = false;
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$this->settings['discard_invalid_properties'] = false;
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$this->settings['css_level'] = 'CSS3.0';
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$this->settings['preserve_css'] = false;
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$this->settings['timestamp'] = false;
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$this->settings['template'] = ''; // say that propertie exist
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$this->set_cfg('template','default'); // call load_template
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$this->optimise = new csstidy_optimise($this);
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$this->tokens_list = & $this->data['csstidy']['tokens'];
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}
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/**
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* Get the value of a setting.
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* @param string $setting
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* @access public
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* @return mixed
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* @version 1.0
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*/
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public function get_cfg($setting) {
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if (isset($this->settings[$setting])) {
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return $this->settings[$setting];
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}
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return false;
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}
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/**
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* Load a template
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* @param string $template used by set_cfg to load a template via a configuration setting
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* @access private
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* @version 1.4
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*/
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public function _load_template($template) {
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switch ($template) {
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case 'default':
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$this->load_template('default');
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break;
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case 'highest':
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$this->load_template('highest_compression');
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break;
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case 'high':
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$this->load_template('high_compression');
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break;
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case 'low':
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$this->load_template('low_compression');
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break;
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default:
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$this->load_template($template);
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break;
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}
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}
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/**
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* Set the value of a setting.
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* @param string $setting
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* @param mixed $value
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* @access public
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* @return bool
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* @version 1.0
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*/
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public function set_cfg($setting, $value=null) {
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if (is_array($setting) && $value === null) {
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foreach ($setting as $setprop => $setval) {
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$this->settings[$setprop] = $setval;
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}
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if (array_key_exists('template', $setting)) {
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$this->_load_template($this->settings['template']);
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}
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return true;
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} elseif (isset($this->settings[$setting]) && $value !== '') {
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$this->settings[$setting] = $value;
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if ($setting === 'template') {
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$this->_load_template($this->settings['template']);
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}
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return true;
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}
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return false;
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}
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/**
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* Adds a token to $this->tokens
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* @param mixed $type
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* @param string $data
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* @param bool $do add a token even if preserve_css is off
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* @access private
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* @version 1.0
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*/
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public function _add_token($type, $data, $do = false) {
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if ($this->get_cfg('preserve_css') || $do) {
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$this->tokens[] = array($type, ($type == COMMENT) ? $data : trim($data));
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}
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}
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/**
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* Add a message to the message log
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* @param string $message
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* @param string $type
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* @param integer $line
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* @access private
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* @version 1.0
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*/
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public function log($message, $type, $line = -1) {
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if ($line === -1) {
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$line = $this->line;
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}
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$line = intval($line);
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$add = array('m' => $message, 't' => $type);
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if (!isset($this->log[$line]) || !in_array($add, $this->log[$line])) {
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$this->log[$line][] = $add;
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}
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}
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/**
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* Parse unicode notations and find a replacement character
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* @param string $string
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* @param integer $i
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* @access private
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* @return string
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* @version 1.2
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*/
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public function _unicode(&$string, &$i) {
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++$i;
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$add = '';
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$replaced = false;
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while ($i < strlen($string) && (ctype_xdigit($string{$i}) || ctype_space($string{$i})) && strlen($add) < 6) {
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$add .= $string{$i};
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if (ctype_space($string{$i})) {
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break;
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}
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$i++;
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}
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if (hexdec($add) > 47 && hexdec($add) < 58 || hexdec($add) > 64 && hexdec($add) < 91 || hexdec($add) > 96 && hexdec($add) < 123) {
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$this->log('Replaced unicode notation: Changed \\' . $add . ' to ' . chr(hexdec($add)), 'Information');
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$add = chr(hexdec($add));
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$replaced = true;
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} else {
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$add = trim('\\' . $add);
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}
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if (@ctype_xdigit($string{$i + 1}) && ctype_space($string{$i})
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&& !$replaced || !ctype_space($string{$i})) {
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$i--;
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}
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if ($add !== '\\' || !$this->get_cfg('remove_bslash') || strpos($this->tokens_list, $string{$i + 1}) !== false) {
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return $add;
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}
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if ($add === '\\') {
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$this->log('Removed unnecessary backslash', 'Information');
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}
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return '';
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}
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/**
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* Write formatted output to a file
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* @param string $filename
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* @param string $doctype when printing formatted, is a shorthand for the document type
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* @param bool $externalcss when printing formatted, indicates whether styles to be attached internally or as an external stylesheet
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* @param string $title when printing formatted, is the title to be added in the head of the document
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* @param string $lang when printing formatted, gives a two-letter language code to be added to the output
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* @access public
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* @version 1.4
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*/
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public function write_page($filename, $doctype='xhtml1.1', $externalcss=true, $title='', $lang='en') {
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$this->write($filename, true);
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}
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/**
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* Write plain output to a file
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* @param string $filename
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* @param bool $formatted whether to print formatted or not
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* @param string $doctype when printing formatted, is a shorthand for the document type
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* @param bool $externalcss when printing formatted, indicates whether styles to be attached internally or as an external stylesheet
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* @param string $title when printing formatted, is the title to be added in the head of the document
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* @param string $lang when printing formatted, gives a two-letter language code to be added to the output
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* @param bool $pre_code whether to add pre and code tags around the code (for light HTML formatted templates)
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* @access public
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* @version 1.4
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*/
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public function write($filename, $formatted=false, $doctype='xhtml1.1', $externalcss=true, $title='', $lang='en', $pre_code=true) {
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$filename .= ( $formatted) ? '.xhtml' : '.css';
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if (!is_dir('temp')) {
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$madedir = mkdir('temp');
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if (!$madedir) {
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print 'Could not make directory "temp" in ' . dirname(__FILE__);
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exit;
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}
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}
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$handle = fopen('temp/' . $filename, 'w');
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if ($handle) {
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if (!$formatted) {
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fwrite($handle, $this->print->plain());
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} else {
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fwrite($handle, $this->print->formatted_page($doctype, $externalcss, $title, $lang, $pre_code));
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}
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}
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fclose($handle);
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}
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/**
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* Loads a new template
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* @param string $content either filename (if $from_file == true), content of a template file, "high_compression", "highest_compression", "low_compression", or "default"
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* @param bool $from_file uses $content as filename if true
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* @access public
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* @version 1.1
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* @see http://csstidy.sourceforge.net/templates.php
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*/
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public function load_template($content, $from_file=true) {
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$predefined_templates = & $this->data['csstidy']['predefined_templates'];
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if ($content === 'high_compression' || $content === 'default' || $content === 'highest_compression' || $content === 'low_compression') {
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$this->template = $predefined_templates[$content];
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return;
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}
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if ($from_file) {
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$content = strip_tags(file_get_contents($content), '<span>');
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}
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$content = str_replace("\r\n", "\n", $content); // Unify newlines (because the output also only uses \n)
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$template = explode('|', $content);
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for ($i = 0; $i < count($template); $i++) {
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$this->template[$i] = $template[$i];
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}
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}
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|
|
/**
|
|
* 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) . ' ';
|
|
$cur_comment = '';
|
|
|
|
for ($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);
|
|
$this->_add_token(AT_START, $this->at);
|
|
} elseif ($string{$i} === ',') {
|
|
$this->at = trim($this->at) . ',';
|
|
} elseif ($string{$i} === '\\') {
|
|
$this->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('(', ')', ':', '.'))) {
|
|
$this->at .= $string{$i};
|
|
}
|
|
} else {
|
|
$lastpos = strlen($this->at) - 1;
|
|
if (!( (ctype_space($this->at{$lastpos}) || $this->is_token($this->at, $lastpos) && $this->at{$lastpos} === ',') && ctype_space($string{$i}))) {
|
|
$this->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') ? $this->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(' ');
|
|
$type = 'is';
|
|
}
|
|
$this->status = $type;
|
|
$i += strlen($name);
|
|
$this->invalid_at = false;
|
|
}
|
|
}
|
|
|
|
if ($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 = $this->css_new_media_section($this->next_selector_at);
|
|
$this->next_selector_at = '';
|
|
}
|
|
} elseif ($string{$i} === '{') {
|
|
$this->status = 'ip';
|
|
if ($this->at == '') {
|
|
$this->at = $this->css_new_media_section(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->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('.', '#', '[', ':'))) {
|
|
// remove unnecessary universal selector, FS#147
|
|
} 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 = $this->css_new_media_section($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 = $this->css_new_media_section(DEFAULT_AT);
|
|
}
|
|
|
|
// case settings
|
|
if ($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 = $this->css_new_media_section($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;
|
|
}
|
|
|
|
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++;
|
|
$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));
|
|
}
|
|
|
|
/**
|
|
* 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);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Start a new media section.
|
|
* Check if the media is not already known,
|
|
* else rename it with extra spaces
|
|
* to avoid merging
|
|
*
|
|
* @param string $media
|
|
* @return string
|
|
*/
|
|
public function css_new_media_section($media) {
|
|
if ($this->get_cfg('preserve_css')) {
|
|
return $media;
|
|
}
|
|
|
|
// if the last @media is the same as this
|
|
// keep it
|
|
if (!$this->css || !is_array($this->css) || empty($this->css)) {
|
|
return $media;
|
|
}
|
|
end($this->css);
|
|
list($at,) = each($this->css);
|
|
if ($at == $media) {
|
|
return $media;
|
|
}
|
|
while (isset($this->css[$media]))
|
|
if (is_numeric($media))
|
|
$media++;
|
|
else
|
|
$media .= ' ';
|
|
return $media;
|
|
}
|
|
|
|
/**
|
|
* 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[$media]);
|
|
list($sel,) = each($this->css[$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 (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;
|
|
}
|
|
}
|