/wp-content/plugins/jetpack/modules/custom-css/csstidy/class.csstidy.php
PHP | 1225 lines | 739 code | 62 blank | 424 comment | 129 complexity | e0eddea27a558170d28429e7f897569f MD5 | raw file
- <?php
- /**
- * CSSTidy - CSS Parser and Optimiser
- *
- * CSS Parser class
- *
- * Copyright 2005, 2006, 2007 Florian Schmitz
- *
- * This file is part of CSSTidy.
- *
- * CSSTidy is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Lesser General Public License as published by
- * the Free Software Foundation; either version 2.1 of the License, or
- * (at your option) any later version.
- *
- * CSSTidy is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- *
- * @license http://opensource.org/licenses/lgpl-license.php GNU Lesser General Public License
- * @package csstidy
- * @author Florian Schmitz (floele at gmail dot com) 2005-2007
- * @author Brett Zamir (brettz9 at yahoo dot com) 2007
- * @author Nikolay Matsievsky (speed at webo dot name) 2009-2010
- * @author Cedric Morin (cedric at yterium dot com) 2010
- */
- /**
- * Defines ctype functions if required
- *
- * @version 1.0
- */
- require_once('class.csstidy_ctype.php');
- /**
- * Various CSS data needed for correct optimisations etc.
- *
- * @version 1.3
- */
- require('data.inc.php');
- /**
- * Contains a class for printing CSS code
- *
- * @version 1.0
- */
- require('class.csstidy_print.php');
- /**
- * Contains a class for optimising CSS code
- *
- * @version 1.0
- */
- require('class.csstidy_optimise.php');
- /**
- * CSS Parser class
- *
- * This class represents a CSS parser which reads CSS code and saves it in an array.
- * In opposite to most other CSS parsers, it does not use regular expressions and
- * thus has full CSS2 support and a higher reliability.
- * Additional to that it applies some optimisations and fixes to the CSS code.
- * An online version should be available here: http://cdburnerxp.se/cssparse/css_optimiser.php
- * @package csstidy
- * @author Florian Schmitz (floele at gmail dot com) 2005-2006
- * @version 1.3.1
- */
- class csstidy {
- /**
- * Saves the parsed CSS. This array is empty if preserve_css is on.
- * @var array
- * @access public
- */
- var $css = array();
- /**
- * Saves the parsed CSS (raw)
- * @var array
- * @access private
- */
- var $tokens = array();
- /**
- * Printer class
- * @see csstidy_print
- * @var object
- * @access public
- */
- var $print;
- /**
- * Optimiser class
- * @see csstidy_optimise
- * @var object
- * @access private
- */
- var $optimise;
- /**
- * Saves the CSS charset (@charset)
- * @var string
- * @access private
- */
- var $charset = '';
- /**
- * Saves all @import URLs
- * @var array
- * @access private
- */
- var $import = array();
- /**
- * Saves the namespace
- * @var string
- * @access private
- */
- var $namespace = '';
- /**
- * Contains the version of csstidy
- * @var string
- * @access private
- */
- var $version = '1.3';
- /**
- * Stores the settings
- * @var array
- * @access private
- */
- var $settings = array();
- /**
- * Saves the parser-status.
- *
- * Possible values:
- * - is = in selector
- * - ip = in property
- * - iv = in value
- * - instr = in string (started at " or ' or ( )
- * - ic = in comment (ignore everything)
- * - at = in @-block
- *
- * @var string
- * @access private
- */
- var $status = 'is';
- /**
- * Saves the current at rule (@media)
- * @var string
- * @access private
- */
- var $at = '';
- /**
- * Saves the current selector
- * @var string
- * @access private
- */
- var $selector = '';
- /**
- * Saves the current property
- * @var string
- * @access private
- */
- var $property = '';
- /**
- * Saves the position of , in selectors
- * @var array
- * @access private
- */
- var $sel_separate = array();
- /**
- * Saves the current value
- * @var string
- * @access private
- */
- var $value = '';
- /**
- * Saves the current sub-value
- *
- * Example for a subvalue:
- * background:url(foo.png) red no-repeat;
- * "url(foo.png)", "red", and "no-repeat" are subvalues,
- * seperated by whitespace
- * @var string
- * @access private
- */
- var $sub_value = '';
- /**
- * Array which saves all subvalues for a property.
- * @var array
- * @see sub_value
- * @access private
- */
- var $sub_value_arr = array();
- /**
- * Saves the stack of characters that opened the current strings
- * @var array
- * @access private
- */
- var $str_char = array();
- var $cur_string = array();
- /**
- * Status from which the parser switched to ic or instr
- * @var array
- * @access private
- */
- var $from = array();
- /**
- /**
- * =true if in invalid at-rule
- * @var bool
- * @access private
- */
- var $invalid_at = false;
- /**
- * =true if something has been added to the current selector
- * @var bool
- * @access private
- */
- var $added = false;
- /**
- * Array which saves the message log
- * @var array
- * @access private
- */
- var $log = array();
- /**
- * Saves the line number
- * @var integer
- * @access private
- */
- var $line = 1;
- /**
- * Marks if we need to leave quotes for a string
- * @var array
- * @access private
- */
- var $quoted_string = array();
- /**
- * List of tokens
- * @var string
- */
- var $tokens_list = "";
- /**
- * Loads standard template and sets default settings
- * @access private
- * @version 1.3
- */
- function csstidy() {
- $this->settings['remove_bslash'] = true;
- $this->settings['compress_colors'] = true;
- $this->settings['compress_font-weight'] = true;
- $this->settings['lowercase_s'] = false;
- /*
- 1 common shorthands optimization
- 2 + font property optimization
- 3 + background property optimization
- */
- $this->settings['optimise_shorthands'] = 1;
- $this->settings['remove_last_;'] = true;
- /* rewrite all properties with low case, better for later gzip OK, safe*/
- $this->settings['case_properties'] = 1;
- /* sort properties in alpabetic order, better for later gzip
- * but can cause trouble in case of overiding same propertie or using hack
- */
- $this->settings['sort_properties'] = false;
- /*
- 1, 3, 5, etc -- enable sorting selectors inside @media: a{}b{}c{}
- 2, 5, 8, etc -- enable sorting selectors inside one CSS declaration: a,b,c{}
- preserve order by default cause it can break functionnality
- */
- $this->settings['sort_selectors'] = 0;
- /* is dangeroues to be used: CSS is broken sometimes */
- $this->settings['merge_selectors'] = 0;
- /* preserve or not browser hacks */
- $this->settings['discard_invalid_selectors'] = false;
- $this->settings['discard_invalid_properties'] = false;
- $this->settings['css_level'] = 'CSS2.1';
- $this->settings['preserve_css'] = false;
- $this->settings['timestamp'] = false;
- $this->settings['template'] = ''; // say that propertie exist
- $this->set_cfg('template','default'); // call load_template
- $this->optimise = new csstidy_optimise($this);
- $this->tokens_list = & $GLOBALS['csstidy']['tokens'];
- }
- /**
- * Get the value of a setting.
- * @param string $setting
- * @access public
- * @return mixed
- * @version 1.0
- */
- function get_cfg($setting) {
- if (isset($this->settings[$setting])) {
- return $this->settings[$setting];
- }
- return false;
- }
- /**
- * Load a template
- * @param string $template used by set_cfg to load a template via a configuration setting
- * @access private
- * @version 1.4
- */
- function _load_template($template) {
- switch ($template) {
- case 'default':
- $this->load_template('default');
- break;
- case 'highest':
- $this->load_template('highest_compression');
- break;
- case 'high':
- $this->load_template('high_compression');
- break;
- case 'low':
- $this->load_template('low_compression');
- break;
- default:
- $this->load_template($template);
- break;
- }
- }
- /**
- * Set the value of a setting.
- * @param string $setting
- * @param mixed $value
- * @access public
- * @return bool
- * @version 1.0
- */
- function set_cfg($setting, $value=null) {
- if (is_array($setting) && $value === null) {
- foreach ($setting as $setprop => $setval) {
- $this->settings[$setprop] = $setval;
- }
- if (array_key_exists('template', $setting)) {
- $this->_load_template($this->settings['template']);
- }
- return true;
- } else if (isset($this->settings[$setting]) && $value !== '') {
- $this->settings[$setting] = $value;
- if ($setting === 'template') {
- $this->_load_template($this->settings['template']);
- }
- return true;
- }
- return false;
- }
- /**
- * Adds a token to $this->tokens
- * @param mixed $type
- * @param string $data
- * @param bool $do add a token even if preserve_css is off
- * @access private
- * @version 1.0
- */
- function _add_token($type, $data, $do = false) {
- if ($this->get_cfg('preserve_css') || $do) {
- $this->tokens[] = array($type, ($type == COMMENT) ? $data : trim($data));
- }
- }
- /**
- * Add a message to the message log
- * @param string $message
- * @param string $type
- * @param integer $line
- * @access private
- * @version 1.0
- */
- function log($message, $type, $line = -1) {
- if ($line === -1) {
- $line = $this->line;
- }
- $line = intval($line);
- $add = array('m' => $message, 't' => $type);
- if (!isset($this->log[$line]) || !in_array($add, $this->log[$line])) {
- $this->log[$line][] = $add;
- }
- }
- /**
- * Parse unicode notations and find a replacement character
- * @param string $string
- * @param integer $i
- * @access private
- * @return string
- * @version 1.2
- */
- function _unicode(&$string, &$i) {
- ++$i;
- $add = '';
- $replaced = false;
- while ($i < strlen($string) && (ctype_xdigit($string{$i}) || ctype_space($string{$i})) && strlen($add) < 6) {
- $add .= $string{$i};
- if (ctype_space($string{$i})) {
- break;
- }
- $i++;
- }
- if (hexdec($add) > 47 && hexdec($add) < 58 || hexdec($add) > 64 && hexdec($add) < 91 || hexdec($add) > 96 && hexdec($add) < 123) {
- $this->log('Replaced unicode notation: Changed \\' . $add . ' to ' . chr(hexdec($add)), 'Information');
- $add = chr(hexdec($add));
- $replaced = true;
- } else {
- $add = trim('\\' . $add);
- }
- if (@ctype_xdigit($string{$i + 1}) && ctype_space($string{$i})
- && !$replaced || !ctype_space($string{$i})) {
- $i--;
- }
- if ($add !== '\\' || !$this->get_cfg('remove_bslash') || strpos($this->tokens_list, $string{$i + 1}) !== false) {
- return $add;
- }
- if ($add === '\\') {
- $this->log('Removed unnecessary backslash', 'Information');
- }
- return '';
- }
- /**
- * Write formatted output to a file
- * @param string $filename
- * @param string $doctype when printing formatted, is a shorthand for the document type
- * @param bool $externalcss when printing formatted, indicates whether styles to be attached internally or as an external stylesheet
- * @param string $title when printing formatted, is the title to be added in the head of the document
- * @param string $lang when printing formatted, gives a two-letter language code to be added to the output
- * @access public
- * @version 1.4
- */
- function write_page($filename, $doctype='xhtml1.1', $externalcss=true, $title='', $lang='en') {
- $this->write($filename, true);
- }
- /**
- * Write plain output to a file
- * @param string $filename
- * @param bool $formatted whether to print formatted or not
- * @param string $doctype when printing formatted, is a shorthand for the document type
- * @param bool $externalcss when printing formatted, indicates whether styles to be attached internally or as an external stylesheet
- * @param string $title when printing formatted, is the title to be added in the head of the document
- * @param string $lang when printing formatted, gives a two-letter language code to be added to the output
- * @param bool $pre_code whether to add pre and code tags around the code (for light HTML formatted templates)
- * @access public
- * @version 1.4
- */
- function write($filename, $formatted=false, $doctype='xhtml1.1', $externalcss=true, $title='', $lang='en', $pre_code=true) {
- $filename .= ( $formatted) ? '.xhtml' : '.css';
- if (!is_dir('temp')) {
- $madedir = mkdir('temp');
- if (!$madedir) {
- print 'Could not make directory "temp" in ' . dirname(__FILE__);
- exit;
- }
- }
- $handle = fopen('temp/' . $filename, 'w');
- if ($handle) {
- if (!$formatted) {
- fwrite($handle, $this->print->plain());
- } else {
- fwrite($handle, $this->print->formatted_page($doctype, $externalcss, $title, $lang, $pre_code));
- }
- }
- fclose($handle);
- }
- /**
- * Loads a new template
- * @param string $content either filename (if $from_file == true), content of a template file, "high_compression", "highest_compression", "low_compression", or "default"
- * @param bool $from_file uses $content as filename if true
- * @access public
- * @version 1.1
- * @see http://csstidy.sourceforge.net/templates.php
- */
- function load_template($content, $from_file=true) {
- $predefined_templates = & $GLOBALS['csstidy']['predefined_templates'];
- if ($content === 'high_compression' || $content === 'default' || $content === 'highest_compression' || $content === 'low_compression') {
- $this->template = $predefined_templates[$content];
- return;
- }
- if ($from_file) {
- $content = strip_tags(file_get_contents($content), '<span>');
- }
- $content = str_replace("\r\n", "\n", $content); // Unify newlines (because the output also only uses \n)
- $template = explode('|', $content);
- for ($i = 0; $i < count($template); $i++) {
- $this->template[$i] = $template[$i];
- }
- }
- /**
- * Starts parsing from URL
- * @param string $url
- * @access public
- * @version 1.0
- */
- function parse_from_url($url) {
- return $this->parse(@file_get_contents($url));
- }
- /**
- * Checks if there is a token at the current position
- * @param string $string
- * @param integer $i
- * @access public
- * @version 1.11
- */
- function is_token(&$string, $i) {
- return (strpos($this->tokens_list, $string{$i}) !== false && !csstidy::escaped($string, $i));
- }
- /**
- * Parses CSS in $string. The code is saved as array in $this->css
- * @param string $string the CSS code
- * @access public
- * @return bool
- * @version 1.1
- */
- function parse($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 = & $GLOBALS['csstidy']['all_properties'];
- $at_rules = & $GLOBALS['csstidy']['at_rules'];
- $quoted_string_properties = & $GLOBALS['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 (csstidy::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, $i);
- }
- // fix for complicated media, i.e @media screen and (-webkit-min-device-pixel-ratio:1.5)
- // '/' is included for ratios in Opera: (-o-min-device-pixel-ratio: 3/2)
- elseif (in_array($string{$i}, array('(', ')', ':', '.', '/'))) {
- $this->at .= $string{$i};
- }
- } else {
- $lastpos = strlen($this->at) - 1;
- if (!( (ctype_space($this->at{$lastpos}) || csstidy::is_token($this->at, $lastpos) && $this->at{$lastpos} === ',') && ctype_space($string{$i}))) {
- $this->at .= $string{$i};
- }
- }
- break;
- /* Case in-selector */
- case 'is':
- if (csstidy::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;
- $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;
- $this->status = 'is';
- } elseif ($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{$lastpos}) || csstidy::is_token($this->selector, $lastpos) && $this->selector{$lastpos} === ',') && ctype_space($string{$i}))) {
- $this->selector .= $string{$i};
- }
- else if (ctype_space($string{$i}) && $this->get_cfg('preserve_css') && !$this->get_cfg('merge_selectors')) {
- $this->selector .= $string{$i};
- }
- }
- break;
- /* Case in-property */
- case 'ip':
- if (csstidy::is_token($string, $i)) {
- if (($string{$i} === ':' || $string{$i} === '=') && $this->property != '') {
- $this->status = 'iv';
- if (!$this->get_cfg('discard_invalid_properties') || csstidy::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 = '';
- $this->property = '';
- } elseif ($string{$i} === ';') {
- $this->property = '';
- } elseif ($string{$i} === '\\') {
- $this->property .= $this->_unicode($string, $i);
- }
- // else this is dumb IE a hack, keep it
- elseif ($this->property=='' AND !ctype_space($string{$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 ((csstidy::is_token($string, $i) || $pn) && (!($string{$i} == ',' && !ctype_space($string{$i+1})))) {
- if ($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 != '') {
- if (substr($this->sub_value, 0, 6) == 'format') {
- $format_strings = csstidy::parse_string_list(substr($this->sub_value, 7, -1));
- if (!$format_strings) {
- $this->sub_value = "";
- }
- else {
- $this->sub_value = "format(";
-
- foreach ($format_strings as $format_string) {
- $this->sub_value .= '"' . str_replace('"', '\\"', $format_string) . '",';
- }
- $this->sub_value = substr($this->sub_value, 0, -1) . ")";
- }
- }
- if ($this->sub_value != '') {
- $this->sub_value_arr[] = $this->sub_value;
- }
- $this->sub_value = '';
- }
- $this->value = array_shift($this->sub_value_arr);
- while(count($this->sub_value_arr)){
- //$this->value .= (substr($this->value,-1,1)==','?'':' ').array_shift($this->sub_value_arr);
- $this->value .= ' '.array_shift($this->sub_value_arr);
- }
- $this->optimise->value();
- $valid = csstidy::property_is_valid($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;
- $this->selector = '';
- }
- } elseif (!$pn) {
- $this->sub_value .= $string{$i};
- if (ctype_space($string{$i}) || $string{$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];
- $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} === '\'') && !csstidy::escaped($string, $i)) {
- $this->cur_string[] = $string{$i};
- $this->str_char[] = $string{$i} == "(" ? ")" : $string{$i};
- $this->from[] = 'instr';
- $this->quoted_string[] = !($string{$i} === "(");
- continue;
- }
- if ($_str_char !== ")" && ($string{$i} === "\n" || $string{$i} === "\r") && !($string{$i - 1} === '\\' && !csstidy::escaped($string, $i - 1))) {
- $temp_add = "\\A";
- $this->log('Fixed incorrect newline in string', 'Warning');
- }
- $_cur_string .= $temp_add;
- if ($string{$i} === $_str_char && !csstidy::escaped($string, $i)) {
- $_quoted_string = array_pop($this->quoted_string);
- $this->status = array_pop($this->from);
- if (!preg_match('|[' . implode('', $GLOBALS['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($this->str_char);
- if ($_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));
- }
- /**
- * Explodes selectors
- * @access private
- * @version 1.0
- */
- 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 $new_val
- * @access private
- * @version 1.2
- */
- function css_add_property($media, $selector, $property, $new_val) {
- if ($this->get_cfg('preserve_css') || trim($new_val) == '') {
- return;
- }
- $this->added = true;
- if (isset($this->css[$media][$selector][$property])) {
- if ((csstidy::is_important($this->css[$media][$selector][$property]) && csstidy::is_important($new_val)) || !csstidy::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 $media
- * @return string
- */
- function css_new_media_section($media){
- if($this->get_cfg('preserve_css')) {
- return $media;
- }
- // if the last @media is the same as this
- // keep it
- if (!$this->css OR !is_array($this->css) OR empty($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 $selector
- * @return string
- */
- function css_new_selector($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 OR !isset($this->css[$media]) OR !$this->css[$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 $property
- * @return string
- */
- function css_new_property($media, $selector, $property){
- if($this->get_cfg('preserve_css')) {
- return $property;
- }
- if (!$this->css OR !isset($this->css[$media][$selector]) OR !$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 $css_add
- * @access private
- * @version 1.1
- */
- function merge_css_blocks($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 $value
- * @return bool
- * @access public
- * @version 1.0
- */
- static function is_important(&$value) {
- return (!strcasecmp(substr(str_replace($GLOBALS['csstidy']['whitespace'], '', $value), -10, 10), '!important'));
- }
- /**
- * Returns a value without !important
- * @param string $value
- * @return string
- * @access public
- * @version 1.0
- */
- static function gvw_important($value) {
- if (csstidy::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 $pos
- * @return bool
- * @access private
- * @version 1.2
- */
- function property_is_next($istring, $pos) {
- $all_properties = & $GLOBALS['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 $property
- * @return bool;
- * @access public
- * @version 1.0
- */
- function property_is_valid($property) {
- if (in_array(trim($property), $GLOBALS['csstidy']['multiple_properties'])) $property = trim($property);
- $all_properties = & $GLOBALS['csstidy']['all_properties'];
- return (isset($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
- */
- 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;
- $current_string = "";
- }
- else if ($value{$i} == '"' || $value{$i} == "'"){
- if ($in_str === $value{$i}) {
- $strings[] = $current_string;
- $in_str = false;
- $current_string = "";
- continue;
- }
- else if (!$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;
- }
- }