<?php // phpcs:ignore WordPress.Files.FileName.InvalidClassFileName
/**
* 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 <https://www.gnu.org/licenses/>.
*
* @license https://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
*/
// phpcs:disable WordPress.PHP.NoSilencedErrors.Discouraged
/**
* Defines ctype functions if required
*
* @version 1.0
*/
require_once __DIR__ . '/class.csstidy-ctype.php';
/**
* Various CSS data needed for correct optimisations etc.
*
* @version 1.3
*/
require __DIR__ . '/data.inc.php';
/**
* Contains a class for printing CSS code
*
* @version 1.0
*/
require __DIR__ . '/class.csstidy-print.php';
/**
* Contains a class for optimising CSS code
*
* @version 1.0
*/
require __DIR__ . '/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: https://cdburnerxp.se/cssparse/css_optimiser.php
*
* @package csstidy
* @author Florian Schmitz (floele at gmail dot com) 2005-2006
* @version 1.3.1
*/
class csstidy { // phpcs:ignore
/**
* Saves the parsed CSS. This array is empty if preserve_css is on.
*
* @var array
* @access public
*/
public $css = array();
/**
* Saves the parsed CSS (raw)
*
* @var array
* @access private
*/
public $tokens = array();
/**
* Printer class
*
* @see csstidy_print
* @var object
* @access public
*/
public $print;
/**
* Optimiser class
*
* @see csstidy_optimise
* @var object
* @access private
*/
public $optimise;
/**
* Saves the CSS charset (@charset)
*
* @var string
* @access private
*/
public $charset = '';
/**
* Saves all @import URLs
*
* @var array
* @access private
*/
public $import = array();
/**
* Saves the namespace
*
* @var string
* @access private
*/
public $namespace = '';
/**
* Contains the version of csstidy
*
* @var string
* @access private
*/
public $version = '1.3';
/**
* Stores the settings
*
* @var array
* @access private
*/
public $settings = array();
/**
* Saves the parser-status.
*
* Possible values:
* - is = in selector
* - ip = in property
* - iv = in value
* - instr = in string (started at " or ' or ( )
* - ic = in comment (ignore everything)
* - at = in @-block
*
* @var string
* @access private
*/
public $status = 'is';
/**
* Saves the current at rule (@media)
*
* @var string
* @access private
*/
public $at = '';
/**
* Saves the current selector
*
* @var string
* @access private
*/
public $selector = '';
/**
* Saves the current property
*
* @var string
* @access private
*/
public $property = '';
/**
* Saves the position of , in selectors
*
* @var array
* @access private
*/
public $sel_separate = array();
/**
* Saves the current value
*
* @var string
* @access private
*/
public $value = '';
/**
* Saves the current sub-value
*
* Example for a subvalue:
* background:url(foo.png) red no-repeat;
* "url(foo.png)", "red", and "no-repeat" are subvalues,
* separated by whitespace
*
* @var string
* @access private
*/
public $sub_value = '';
/**
* Array which saves all subvalues for a property.
*
* @var array
* @see sub_value
* @access private
*/
public $sub_value_arr = array();
/**
* Saves the stack of characters that opened the current strings
*
* @var array
* @access private
*/
public $str_char = array();
/**
* Current strings.
*
* @var array
* @access private
*/
public $cur_string = array();
/**
* Status from which the parser switched to ic or instr
*
* @var array
* @access private
*/
public $from = array();
/**
/**
* =true if in invalid at-rule
*
* @var bool
* @access private
*/
public $invalid_at = false;
/**
* =true if something has been added to the current selector
*
* @var bool
* @access private
*/
public $added = false;
/**
* Array which saves the message log
*
* @var array
* @access private
*/
public $log = array();
/**
* Saves the line number
*
* @var integer
* @access private
*/
public $line = 1;
/**
* Marks if we need to leave quotes for a string
*
* @var array
* @access private
*/
public $quoted_string = array();
/**
* List of tokens
*
* @var string
*/
public $tokens_list = '';
/**
* Loads standard template and sets default settings.
*
* @access private
* @version 1.3
*/
public function __construct() {
$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.
/* Tells csstidy_optimise to keep leading zeros on decimal numbers, e.g., 0.7 */
$this->settings['preserve_leading_zeros'] = false;
$this->optimise = new csstidy_optimise( $this );
$this->tokens_list = & $GLOBALS['csstidy']['tokens'];
}
/**
* Call the construct function.
*/
public function csstidy() {
$this->__construct();
}
/**
* Get the value of a setting.
*
* @param string $setting - the settings.
* @access public
* @return mixed
* @version 1.0
*/
public function get_cfg( $setting ) {
if ( isset( $this->settings[ $setting ] ) ) {
return $this->settings[ $setting ];
}
return false;
}
/**
* Load a template
*
* @param string $template used by set_cfg to load a template via a configuration setting.
* @access private
* @version 1.4
*/
public function _load_template( $template ) { // phpcs:ignore PSR2.Methods.MethodDeclaration.Underscore
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 - the setting.
* @param mixed $value - the value we're setting.
* @access public
* @return bool
* @version 1.0
*/
public function set_cfg( $setting, $value = null ) {
if ( is_array( $setting ) && null === $value ) {
foreach ( $setting as $setprop => $setval ) {
$this->settings[ $setprop ] = $setval;
}
if ( array_key_exists( 'template', $setting ) ) {
$this->_load_template( $this->settings['template'] );
}
return true;
} elseif ( isset( $this->settings[ $setting ] ) && '' !== $value ) {
$this->settings[ $setting ] = $value;
if ( 'template' === $setting ) {
$this->_load_template( $this->settings['template'] );
}
return true;
}
return false;
}
/**
* Adds a token to $this->tokens
*
* @param mixed $type - the type.
* @param string $data - data.
* @param bool $do add a token even if preserve_css is off.
* @access private
* @version 1.0
*/
public function _add_token( $type, $data, $do = false ) { // phpcs:ignore PSR2.Methods.MethodDeclaration.Underscore
if ( $this->get_cfg( 'preserve_css' ) || $do ) {
$this->tokens[] = array( $type, ( COMMENT === $type ) ? $data : trim( $data ) );
}
}
/**
* Add a message to the message log
*
* @param string $message - the message.
* @param string $type - the type of message.
* @param integer $line - the line.
* @access private
* @version 1.0
*/
public function log( $message, $type, $line = -1 ) {
if ( -1 === $line ) {
$line = $this->line;
}
$line = (int) $line;
$add = array(
'm' => $message,
't' => $type,
);
if ( ! isset( $this->log[ $line ] ) || ! in_array( $add, $this->log[ $line ], true ) ) {
$this->log[ $line ][] = $add;
}
}
/**
* Parse unicode notations and find a replacement character
*
* @param string $string - a string.
* @param integer $i - counting integer.
* @access private
* @return string
* @version 1.2
*/
public function _unicode( &$string, &$i ) { // phpcs:ignore PSR2.Methods.MethodDeclaration.Underscore
++$i;
$add = '';
$replaced = false;
while ( $i < strlen( $string ) && ( ctype_xdigit( $string[ $i ] ) || ctype_space( $string[ $i ] ) ) && strlen( $add ) < 6 ) { // phpcs:ignore Squiz.PHP.DisallowSizeFunctionsInLoops.Found
$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 - the file na,e.
* @param string $doctype when printing formatted, is a shorthand for the document type.
* @param bool $externalcss when printing formatted, indicates whether styles to be attached internally or as an external stylesheet.
* @param string $title when printing formatted, is the title to be added in the head of the document.
* @param string $lang when printing formatted, gives a two-letter language code to be added to the output.
* @access public
* @version 1.4
*/
public function write_page( $filename, $doctype = 'xhtml1.1', $externalcss = true, $title = '', $lang = 'en' ) { // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable
$this->write( $filename, true );
}
/**
* Write plain output to a file
*
* @param string $filename the file name.
* @param bool $formatted whether to print formatted or not.
* @param string $doctype when printing formatted, is a shorthand for the document type.
* @param bool $externalcss when printing formatted, indicates whether styles to be attached internally or as an external stylesheet.
* @param string $title when printing formatted, is the title to be added in the head of the document.
* @param string $lang when printing formatted, gives a two-letter language code to be added to the output.
* @param bool $pre_code whether to add pre and code tags around the code (for light HTML formatted templates).
* @access public
* @version 1.4
*/
public function write( $filename, $formatted = false, $doctype = 'xhtml1.1', $externalcss = true, $title = '', $lang = 'en', $pre_code = true ) {
$filename .= ( $formatted ) ? '.xhtml' : '.css';
if ( ! is_dir( 'temp' ) ) {
$madedir = mkdir( 'temp' );
if ( ! $madedir ) {
print 'Could not make directory "temp" in ' . __DIR__;
exit;
}
}
$handle = fopen( 'temp/' . $filename, 'w' ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_read_fopen
if ( $handle ) {
if ( ! $formatted ) {
fwrite( $handle, $this->print->plain() ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_read_fwrite
} else {
fwrite( $handle, $this->print->formatted_page( $doctype, $externalcss, $title, $lang, $pre_code ) ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_read_fwrite
}
}
fclose( $handle ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_system_read_fclose
}
/**
* Loads a new template
*
* @param string $content either filename (if $from_file == true), content of a template file, "high_compression", "highest_compression", "low_compression", or "default".
* @param bool $from_file uses $content as filename if true.
* @access public
* @version 1.1
* @see http://csstidy.sourceforge.net/templates.php
*/
public function load_template( $content, $from_file = true ) {
$predefined_templates = & $GLOBALS['csstidy']['predefined_templates'];
if ( 'high_compression' === $content || 'default' === $content || 'highest_compression' === $content || 'low_compression' === $content ) {
$this->template = $predefined_templates[ $content ];
return;
}
if ( $from_file ) {
$content = strip_tags( file_get_contents( $content ), '<span>' ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents
}
$content = str_replace( "\r\n", "\n", $content ); // Unify newlines (because the output also only uses \n).
$template = explode( '|', $content );
$this->template = array_replace( $this->template, $template );
}
/**
* Starts parsing from URL
*
* @param string $url - the URL.
* @access public
* @version 1.0
*/
public function parse_from_url( $url ) {
return $this->parse( @file_get_contents( $url ) ); // phpcs:ignore WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents
}
/**
* Checks if there is a token at the current position
*
* @param string $string - the string we're checking.
* @param integer $i - an int.
* @access public
* @version 1.11
*/
public function is_token( &$string, $i ) {
return ( strpos( $this->tokens_list, $string[ $i ] ) !== false && ! self::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 );
$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 ( "\n" === $string[ $i ] || "\r" === $string[ $i ] ) {
++$this->line;
}
switch ( $this->status ) {
/* Case in at-block */
case 'at':
if ( self::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 );
} elseif ( in_array( $string[ $i ], array( '(', ')', ':', '.', '/' ), true ) ) {
// 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).
$this->at .= $string[ $i ];
}
} else {
$lastpos = strlen( $this->at ) - 1;
if ( ! ( ( ctype_space( $this->at[ $lastpos ] ) || self::is_token( $this->at, $lastpos ) && ',' === $this->at[ $lastpos ] ) && ctype_space( $string[ $i ] ) ) ) {
$this->at .= $string[ $i ];
}
}
break;
/* Case in-selector */
case 'is':
if ( self::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 ) ) {
( 'at' === $type ) ? $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( '.', '#', '[', ':' ), true ) ) { // phpcs:ignore Generic.CodeAnalysis.EmptyStatement.DetectedElseif
// remove unnecessary universal selector, FS#147.
} else {
$this->selector .= $string[ $i ];
}
} else {
$lastpos = strlen( $this->selector ) - 1;
if ( -1 === $lastpos || ! ( ( ctype_space( $this->selector[ $lastpos ] ) || self::is_token( $this->selector, $lastpos ) && ',' === $this->selector[ $lastpos ] ) && ctype_space( $string[ $i ] ) ) ) {
$this->selector .= $string[ $i ];
} elseif ( 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 ( self::is_token( $string, $i ) ) {
if ( ( ':' === $string[ $i ] || '=' === $string[ $i ] ) && '' !== $this->property ) {
$this->status = 'iv';
if ( ! $this->get_cfg( 'discard_invalid_properties' ) || self::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 );
} elseif ( '' === $this->property && ! ctype_space( $string[ $i ] ) ) {
// else this is dumb IE a hack, keep it.
$this->property .= $string[ $i ];
}
} elseif ( ! ctype_space( $string[ $i ] ) ) {
$this->property .= $string[ $i ];
}
break;
/* Case in-value */
case 'iv':
$pn = ( ( "\n" === $string[ $i ] || "\r" === $string[ $i ] ) && $this->property_is_next( $string, $i + 1 ) || strlen( $string ) - 1 === $i );
if ( ( self::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, true );
} 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 ) ] ) && 'iv' === $at_rules[ substr( $this->selector, 1 ) ] ) {
$this->status = 'is';
switch ( $this->selector ) {
case '@charset':
/* Add quotes to charset */
$this->sub_value_arr[] = '"' . trim( $this->sub_value ) . '"';
$this->charset = $this->sub_value_arr[0];
break;
case '@namespace':
/* Add quotes to namespace */
$this->sub_value_arr[] = '"' . trim( $this->sub_value ) . '"';
$this->namespace = implode( ' ', $this->sub_value_arr );
break;
case '@import':
$this->sub_value = trim( $this->sub_value );
if ( empty( $this->sub_value_arr ) ) {
// Quote URLs in imports only if they're not already inside url() and not already quoted.
if ( substr( $this->sub_value, 0, 4 ) !== 'url(' ) {
if ( ! ( substr( $this->sub_value, -1 ) === $this->sub_value[0] && in_array( $this->sub_value[0], array( "'", '"' ), true ) ) ) {
$this->sub_value = '"' . $this->sub_value . '"';
}
}
}
$this->sub_value_arr[] = $this->sub_value;
$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 = self::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 ( $this->sub_value_arr ) {
$this->value .= ' ' . array_shift( $this->sub_value_arr );
}
$this->optimise->value();
$valid = self::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 ] ) && ! self::escaped( $string, $i ) ) {
$this->cur_string[] = $string[ $i ];
$this->str_char[] = $string[ $i ] === '(' ? ')' : $string[ $i ];
$this->from[] = 'instr';
$this->quoted_string[] = ! ( '(' === $string[ $i ] );
continue 2;
}
if ( ')' !== $_str_char && ( "\n" === $string[ $i ] || "\r" === $string[ $i ] ) && ! ( '\\' === $string[ $i - 1 ] && ! self::escaped( $string, $i - 1 ) ) ) {
$temp_add = '\\A';
$this->log( 'Fixed incorrect newline in string', 'Warning' );
}
$_cur_string .= $temp_add;
if ( $string[ $i ] === $_str_char && ! self::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 ) && 'content' !== $this->property ) {
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 ( 'iv' === $this->status ) {
// phpcs:disable Squiz.PHP.CommentedOutCode.Found, Squiz.Commenting.BlockComment.NoNewLine
// WPCOM hack: prevents CSSTidy from removing spaces after commas inside
// declaration's values.
// For more information, see D74626-code.
/*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 );
}
}*/
// phpcs:enable Squiz.PHP.CommentedOutCode.Found, Squiz.Commenting.BlockComment.NoNewLine
$this->sub_value .= $_cur_string;
} elseif ( 'is' === $this->status ) {
$this->selector .= $_cur_string;
} elseif ( 'instr' === $this->status ) {
$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
*/
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 ( count( $this->sel_separate ) - 1 === $num ) {
++$pos;
}
$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 - the string.
* @param integer $pos - the position.
* @access public
* @return bool
* @version 1.02
*/
public static function escaped( &$string, $pos ) {
return ! ( @( '\\' !== $string[ $pos - 1 ] ) || self::escaped( $string, $pos - 1 ) );
}
/**
* Adds a property with value to the existing CSS code
*
* @param string $media - the media.
* @param string $selector - the selector.
* @param string $property - the property.
* @param string $new_val - new value.
* @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 ( ( self::is_important( $this->css[ $media ][ $selector ][ $property ] ) && self::is_important( $new_val ) ) || ! self::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 - the 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 );
$at = current( $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 - the media.
* @param string $selector - the 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'] ) {
return $selector;
}
if ( ! $this->css || ! isset( $this->css[ $media ] ) || ! $this->css[ $media ] ) {
return $selector;
}
// if last is the same, keep it.
end( $this->css[ $media ] );
$sel = current( $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 - the media.
* @param string $selector - the selector.
* @param string $property - the 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 - the media.
* @param string $selector - the selector.
* @param array $css_add - css being added.
* @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 $value - the value.
* @return bool
* @access public
* @version 1.0
*/
public static function is_important( &$value ) {
return ( ! strcasecmp( substr( str_replace( $GLOBALS['csstidy']['whitespace'], '', $value ), -10, 10 ), '!important' ) );
}
/**
* Returns a value without !important
*
* @param string $value - the value.
* @return string
* @access public
* @version 1.0
*/
public static function gvw_important( $value ) {
if ( self::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 - if it's a string.
* @param integer $pos - position.
* @return bool
* @access private
* @version 1.2
*/
public function property_is_next( $istring, $pos ) {
$all_properties = & $GLOBALS['csstidy']['all_properties'];
$istring = substr( $istring, $pos, strlen( $istring ) - $pos );
$pos = strpos( $istring, ':' );
if ( false === $pos ) {
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 - the property.
* @return bool;
* @access public
* @version 1.0
*/
public function property_is_valid( $property ) {
$property = strtolower( $property );
if ( in_array( trim( $property ), $GLOBALS['csstidy']['multiple_properties'], true ) ) {
$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 $value - the value.
* @return array
*/
public function parse_string_list( $value ) {
$value = trim( $value );
// Case: if it's 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 ] ) && true === $in_str ) {
$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;
}
}