AlkantarClanX12
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<?php
/**
* CSSTidy Parsing PHP Class
*
* @package TablePress
* @subpackage CSS
* @author Florian Schmitz, Brett Zamir, Nikolay Matsievsky, Cedric Morin, Christopher Finke, Mark Scherer, Tobias Bäthge
* @since 1.0.0
*/
// Prohibit direct script loading.
defined( 'ABSPATH' ) || die( 'No direct script access allowed!' );
/**
* Load the class for printing CSS code.
*
* @since 1.0.0
*/
require __DIR__ . '/class.csstidy_print.php';
/**
* Load the class for optimising CSS code.
*
* @since 1.0.0
*/
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.
* Additionally to that, it applies some optimizations and fixes to the CSS code.
*
* @package CSSTidy
* @since 1.0.0
*/
class TablePress_CSSTidy {
/**
* Defines constants.
*
* @since 1.0.0
*/
const AT_START = 1;
const AT_END = 2;
const SEL_START = 3;
const SEL_END = 4;
const PROPERTY = 5;
const VALUE = 6;
const COMMENT = 7;
const IMPORTANT_COMMENT = 8;
const DEFAULT_AT = 41;
/**
* The parsed CSS.
*
* This array is empty if preserve_css is on.
*
* @since 1.0.0
*/
public array $css = array();
/**
* The raw parsed CSS.
*
* @since 1.0.0
*/
public array $tokens = array();
/**
* Instance of the CSS Printer class.
*
* @since 1.0.0
*/
public \TablePress_CSSTidy_Print $print;
/**
* Instance of the CSS Optimiser class.
*
* @since 1.0.0
*/
public \TablePress_CSSTidy_Optimise $optimise;
/**
* The CSS charset.
*
* @since 1.0.0
*/
public string $charset = '';
/**
* All @import URLs.
*
* @since 1.0.0
*/
public array $import = array();
/**
* The namespace.
*
* @since 1.0.0
*/
public string $namespace = '';
/**
* The settings.
*
* @since 1.0.0
*/
protected array $settings = array();
/**
* 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
*
* @since 1.0.0
*/
protected string $status = 'is';
/**
* The current at rule (@media).
*
* @since 1.0.0
*/
public string $at = '';
/**
* The at rule for next selector (during @font-face or other @).
*
* @since 1.0.0
* @var string|int
*/
protected $next_selector_at = '';
/**
* The current selector.
*
* @since 1.0.0
*/
public string $selector = '';
/**
* The current property.
*
* @since 1.0.0
*/
public string $property = '';
/**
* The position of , in selectors.
*
* @since 1.0.0
*/
protected array $sel_separate = array();
/**
* The current value.
*
* @since 1.0.0
*/
public string $value = '';
/**
* The current sub-value.
*
* Example for a sub-value: In the CSS rule
* background: url(foo.png) red no-repeat;
* "url(foo.png)", "red", and "no-repeat" are sub-values,
* separated by whitespace.
*
* @since 1.0.0
*/
public string $sub_value = '';
/**
* All sub-values for a property.
*
* @since 1.0.0
*/
protected array $sub_value_arr = array();
/**
* The stack of characters that opened the current strings.
*
* @since 1.0.0
*/
public array $str_char = array();
/**
* [$cur_string description]
*
* @since 1.0.0
*/
public array $cur_string = array();
/**
* Status from which the parser switched to ic or instr
*
* @since 1.0.0
*/
protected array $from = array();
/**
* True if in invalid at-rule.
*
* @since 1.0.0
*/
protected bool $invalid_at = false;
/**
* True if something has been added to the current selector.
*
* @since 1.0.0
*/
protected bool $added = false;
/**
* The message log.
*
* @since 1.0.0
*/
public array $log = array();
/**
* The line number.
*
* @since 1.0.0
*/
protected int $line = 1;
/**
* Marks if we need to leave quotes for a string.
*
* @since 1.0.0
*/
protected array $quoted_string = array();
/**
* List of tokens.
*
* @since 1.0.0
*/
protected string $tokens_list = '';
/**
* Various CSS Data for CSSTidy.
*
* @since 1.0.0
*/
public array $data = array();
/**
* The output templates.
*
* @since 1.0.0
*/
public array $template = array();
/**
* Loads standard template and sets default settings.
*
* @since 1.0.0
*/
public function __construct() {
$this->data = require __DIR__ . '/data.inc.php';
$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 lower case, better for later gzipping.
$this->settings['case_properties'] = 1;
/*
* Sort properties in alphabetic order, better for later gzipping,
* but can cause trouble in case of overriding same properties or using hacks.
*/
$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 functionality.
*/
$this->settings['sort_selectors'] = 0;
// Is dangerous to be used: CSS is broken sometimes.
$this->settings['merge_selectors'] = 0;
// Whether to preserve browser hacks.
$this->settings['discard_invalid_selectors'] = false;
$this->settings['discard_invalid_properties'] = false;
$this->settings['css_level'] = 'CSS3.0';
$this->settings['preserve_css'] = false;
$this->settings['timestamp'] = false;
$this->settings['template'] = ''; // say that property exists.
$this->set_cfg( 'template', 'default' ); // Call load_template.
$this->print = new TablePress_CSSTidy_Print( $this );
$this->optimise = new TablePress_CSSTidy_Optimise( $this );
$this->tokens_list = &$this->data['csstidy']['tokens'];
}
/**
* Gets the value of a setting.
*
* @since 1.0.0
*
* @param string $setting Setting to get.
* @return string|int|bool Value of the setting.
*/
public function get_cfg( string $setting ) /* : string|int|bool */ {
if ( isset( $this->settings[ $setting ] ) ) {
return $this->settings[ $setting ];
}
return false;
}
/**
* Sets the value of a setting.
*
* @since 1.0.0
*
* @param string $setting Setting.
* @param string|int|bool|null $value Optional. Value of the setting.
* @return bool Whether the setting was set.
*/
public function set_cfg( string $setting, $value = null ): bool {
if ( 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.
*
* @since 1.0.0
*
* @param mixed $type Type.
* @param string $data Data.
* @param bool $force Optional. Add a token even if preserve_css is off.
*/
public function _add_token( $type, string $data, bool $force = false ): void {
if ( $this->get_cfg( 'preserve_css' ) || $force ) {
// nested @...: if opening a new part we just closed, remove the previous closing instead of adding opening.
if ( self::AT_START === $type
&& count( $this->tokens )
&& ( $last = end( $this->tokens ) ) // phpcs:ignore Generic.CodeAnalysis.AssignmentInCondition.Found,Squiz.PHP.DisallowMultipleAssignments.FoundInControlStructure
&& self::AT_END === $last[0]
&& trim( $data ) === $last[1] ) {
array_pop( $this->tokens );
} else {
$this->tokens[] = array( $type, ( self::COMMENT === $type || self::IMPORTANT_COMMENT === $type ) ? $data : trim( $data ) );
}
}
}
/**
* Adds a message to the message log.
*
* @since 1.0.0
*
* @param string $message Message.
* @param string $type Type.
* @param int $line Optional. Line number. -1 will use the current line.
*/
public function log( string $message, string $type, int $line = -1 ): void {
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;
}
}
/**
* Parses Unicode notations and find a replacement character.
*
* @since 1.0.0
*
* @param string $a_string String.
* @param int $i i.
* @return string [return value]
*/
public function _unicode( string &$a_string, int &$i ): string {
++$i;
$add = '';
$replaced = false;
while ( $i < strlen( $a_string ) && ( ctype_xdigit( $a_string[ $i ] ) || ctype_space( $a_string[ $i ] ) ) && strlen( $add ) < 6 ) { // phpcs:ignore Squiz.PHP.DisallowSizeFunctionsInLoops.Found
$add .= $a_string[ $i ];
if ( ctype_space( $a_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( $a_string[ $i + 1 ] ) && ctype_space( $a_string[ $i ] ) && ! $replaced ) || ! ctype_space( $a_string[ $i ] ) ) { // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
--$i;
}
if ( '\\' !== $add || ! $this->get_cfg( 'remove_bslash' ) || str_contains( $this->tokens_list, $a_string[ $i + 1 ] ) ) {
return $add;
}
if ( '\\' === $add ) {
$this->log( 'Removed unnecessary backslash', 'Information' );
}
return '';
}
/**
* Loads a new template.
*
* @since 1.0.0
*
* @link https://csstidy.sourceforge.net/templates.php
*
* @param string $content Either file name (if $from_file is true), content of a template file, "default", "low", high", or "highest".
* @param bool $from_file Optional. Uses $content as filename if true.
*/
protected function load_template( string $content, bool $from_file = true ): void {
if ( in_array( $content, array( 'default', 'low', 'high', 'highest' ), true ) ) {
$this->template = $this->data['csstidy']['predefined_templates'][ $content ];
return;
}
if ( $from_file ) {
$content = strip_tags( file_get_contents( $content ), '<span>' );
}
// Unify newlines (because the output also only uses \n).
$content = str_replace( "\r\n", "\n", $content );
$this->template = explode( '|', $content );
}
/**
* Starts parsing from URL.
*
* @since 1.0.0
*
* @param string $url URL.
* @return bool Whether the CSS code could be parsed successfully.
*/
protected function parse_from_url( string $url ): bool {
$data = file_get_contents( $url );
if ( false === $data ) {
return false;
}
return $this->parse( $data );
}
/**
* Checks if there is a token at the current position.
*
* @since 1.0.0
*
* @param string $a_string String.
* @param int $i i.
* @return bool [return value]
*/
protected function is_token( string &$a_string, int $i ): bool {
return ( str_contains( $this->tokens_list, $a_string[ $i ] ) && ! $this->escaped( $a_string, $i ) );
}
/**
* Parses CSS in a string. The output is saved as an array in $this->css.
*
* @since 1.0.0
*
* @param string $a_string The CSS code.
* @return bool Whether the CSS code could be parsed successfully.
*/
public function parse( string $a_string ): bool {
// Temporarily set locale to en_US in order to handle floats properly.
$old = @setlocale( LC_ALL, 0 ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
@setlocale( LC_ALL, 'C' ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
$at_rules = &$this->data['csstidy']['at_rules'];
$quoted_string_properties = &$this->data['csstidy']['quoted_string_properties'];
$this->css = array();
$this->print->input_css = $a_string;
$a_string = str_replace( "\r\n", "\n", $a_string ) . ' ';
$cur_comment = '';
$cur_at = '';
for ( $i = 0, $size = strlen( $a_string ); $i < $size; $i++ ) {
if ( "\n" === $a_string[ $i ] || "\r" === $a_string[ $i ] ) {
++$this->line;
}
switch ( $this->status ) {
/* Case in at-block */
case 'at':
if ( $this->is_token( $a_string, $i ) ) {
if ( '/' === $a_string[ $i ] && '*' === @$a_string[ $i + 1 ] ) { // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
$this->status = 'ic';
++$i;
$this->from[] = 'at';
} elseif ( '{' === $a_string[ $i ] ) {
$this->status = 'is';
$this->at = $this->css_new_media_section( $this->at, $cur_at );
$this->_add_token( self::AT_START, $this->at );
} elseif ( ',' === $a_string[ $i ] ) {
$cur_at = trim( $cur_at ) . ',';
} elseif ( '\\' === $a_string[ $i ] ) {
$cur_at .= $this->_unicode( $a_string, $i );
} elseif ( in_array( $a_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).
$cur_at .= $a_string[ $i ];
}
} else {
$lastpos = strlen( $cur_at ) - 1;
if ( ! ( ( ctype_space( $cur_at[ $lastpos ] ) || ( $this->is_token( $cur_at, $lastpos ) && ',' === $cur_at[ $lastpos ] ) ) && ctype_space( $a_string[ $i ] ) ) ) {
$cur_at .= $a_string[ $i ];
}
}
break;
/* Case in-selector */
case 'is':
if ( $this->is_token( $a_string, $i ) ) {
if ( '/' === $a_string[ $i ] && '*' === @$a_string[ $i + 1 ] && '' === trim( $this->selector ) ) { // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
$this->status = 'ic';
++$i;
$this->from[] = 'is';
} elseif ( '@' === $a_string[ $i ] && '' === trim( $this->selector ) ) { // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
// Check for at-rule.
$this->invalid_at = true;
foreach ( $at_rules as $name => $type ) {
if ( ! strcasecmp( substr( $a_string, $i + 1, strlen( $name ) ), $name ) ) {
if ( 'at' === $type ) {
$cur_at = '@' . $name;
} else {
$this->selector = '@' . $name;
}
if ( 'atis' === $type ) {
$this->next_selector_at = ( $this->next_selector_at ? $this->next_selector_at : ( $this->at ? $this->at : self::DEFAULT_AT ) );
$this->at = $this->css_new_media_section( $this->at, ' ', true );
$type = 'is';
}
$this->status = $type;
$i += strlen( $name );
$this->invalid_at = false;
break;
}
}
if ( $this->invalid_at ) {
$this->selector = '@';
$invalid_at_name = '';
for ( $j = $i + 1; $j < $size; ++$j ) {
if ( ! ctype_alpha( $a_string[ $j ] ) ) {
break;
}
$invalid_at_name .= $a_string[ $j ];
}
$this->log( 'Invalid @-rule: ' . $invalid_at_name . ' (removed)', 'Warning' );
}
} elseif ( ( '"' === $a_string[ $i ] || "'" === $a_string[ $i ] ) ) {
$this->cur_string[] = $a_string[ $i ];
$this->status = 'instr';
$this->str_char[] = $a_string[ $i ];
$this->from[] = 'is';
/* Fixing CSS3 attribute selectors, i.e. a[href$=".mp3" */
$this->quoted_string[] = ( '=' === $a_string[ $i - 1 ] );
} elseif ( $this->invalid_at && ';' === $a_string[ $i ] ) {
$this->invalid_at = false;
$this->status = 'is';
if ( $this->next_selector_at ) {
$this->at = $this->css_close_media_section( $this->at );
$this->at = $this->css_new_media_section( $this->at, $this->next_selector_at );
$this->next_selector_at = '';
}
} elseif ( '{' === $a_string[ $i ] ) {
$this->status = 'ip';
if ( '' === $this->at ) {
$this->at = $this->css_new_media_section( $this->at, self::DEFAULT_AT );
}
$this->selector = $this->css_new_selector( $this->at, $this->selector );
$this->_add_token( self::SEL_START, $this->selector );
$this->added = false;
} elseif ( '}' === $a_string[ $i ] ) {
$this->_add_token( self::AT_END, $this->at );
$this->at = $this->css_close_media_section( $this->at );
$this->selector = '';
$this->sel_separate = array();
} elseif ( ',' === $a_string[ $i ] ) {
$this->selector = trim( $this->selector ) . ',';
$this->sel_separate[] = strlen( $this->selector );
} elseif ( '\\' === $a_string[ $i ] ) {
$this->selector .= $this->_unicode( $a_string, $i );
} elseif ( '*' === $a_string[ $i ] && @in_array( $a_string[ $i + 1 ], array( '.', '#', '[', ':' ), true ) && ( 0 === $i || '/' !== $a_string[ $i - 1 ] ) ) { // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged,Generic.CodeAnalysis.EmptyStatement.DetectedElseif
// Remove unnecessary universal selector, FS#147, but not comment in selector.
} else {
$this->selector .= $a_string[ $i ];
}
} else {
$lastpos = strlen( $this->selector ) - 1;
if ( -1 === $lastpos || ! ( ( ctype_space( $this->selector[ $lastpos ] ) || ( $this->is_token( $this->selector, $lastpos ) && ',' === $this->selector[ $lastpos ] ) ) && ctype_space( $a_string[ $i ] ) ) ) {
$this->selector .= $a_string[ $i ];
}
}
break;
/* Case in-property */
case 'ip':
if ( $this->is_token( $a_string, $i ) ) {
if ( ( ':' === $a_string[ $i ] || '=' === $a_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->property = strtolower( $this->property );
$this->_add_token( self::PROPERTY, $this->property );
}
} elseif ( '/' === $a_string[ $i ] && '*' === @$a_string[ $i + 1 ] && '' === $this->property ) { // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
$this->status = 'ic';
++$i;
$this->from[] = 'ip';
} elseif ( '}' === $a_string[ $i ] ) {
$this->explode_selectors();
$this->status = 'is';
$this->invalid_at = false;
$this->_add_token( self::SEL_END, $this->selector );
$this->selector = '';
$this->property = '';
if ( $this->next_selector_at ) {
$this->at = $this->css_close_media_section( $this->at );
$this->at = $this->css_new_media_section( $this->at, $this->next_selector_at );
$this->next_selector_at = '';
}
} elseif ( ';' === $a_string[ $i ] ) {
$this->property = '';
} elseif ( '\\' === $a_string[ $i ] ) {
$this->property .= $this->_unicode( $a_string, $i );
} elseif ( ( '' === $this->property && ! ctype_space( $a_string[ $i ] ) ) || ( '/' === $this->property || '/' === $a_string[ $i ] ) ) {
// else this is dumb IE a hack, keep it.
// including /.
$this->property .= $a_string[ $i ];
}
} elseif ( ! ctype_space( $a_string[ $i ] ) ) {
$this->property .= $a_string[ $i ];
}
break;
/* Case in-value */
case 'iv':
$pn = ( ( ( "\n" === $a_string[ $i ] || "\r" === $a_string[ $i ] ) && $this->property_is_next( $a_string, $i + 1 ) ) || ( strlen( $a_string ) - 1 ) === $i );
if ( ( $this->is_token( $a_string, $i ) || $pn ) && ( ! ( ',' === $a_string[ $i ] && ! ctype_space( $a_string[ $i + 1 ] ) ) ) ) {
if ( '/' === $a_string[ $i ] && '*' === @$a_string[ $i + 1 ] ) { // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
$this->status = 'ic';
++$i;
$this->from[] = 'iv';
} elseif ( ( '"' === $a_string[ $i ] || "'" === $a_string[ $i ] || '(' === $a_string[ $i ] ) ) {
$this->cur_string[] = $a_string[ $i ];
$this->str_char[] = ( '(' === $a_string[ $i ] ) ? ')' : $a_string[ $i ];
$this->status = 'instr';
$this->from[] = 'iv';
$this->quoted_string[] = in_array( strtolower( $this->property ), $quoted_string_properties, true );
} elseif ( ',' === $a_string[ $i ] ) {
$this->sub_value = trim( $this->sub_value ) . ',';
} elseif ( '\\' === $a_string[ $i ] ) {
$this->sub_value .= $this->_unicode( $a_string, $i );
} elseif ( ';' === $a_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 ( ! str_starts_with( $this->sub_value, 'url(' ) ) {
if ( ! str_ends_with( $this->sub_value, $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 ( '}' !== $a_string[ $i ] ) {
$this->sub_value .= $a_string[ $i ];
}
if ( ( '}' === $a_string[ $i ] || ';' === $a_string[ $i ] || $pn ) && ! empty( $this->selector ) ) {
if ( '' === $this->at ) {
$this->at = $this->css_new_media_section( $this->at, self::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 ) ) { // phpcs:ignore Squiz.PHP.DisallowSizeFunctionsInLoops.Found
$sub = array_shift( $this->sub_value_arr );
if ( strstr( $this->selector, 'font-face' ) ) {
$sub = $this->quote_font_format( $sub );
}
if ( '' !== $sub ) {
if ( strlen( $this->value ) && ( ! str_ends_with( $this->value, ',' ) || $this->get_cfg( 'preserve_css' ) ) ) {
$this->value .= ' ';
}
$this->value .= $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( self::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 ( '}' === $a_string[ $i ] ) {
$this->explode_selectors();
$this->_add_token( self::SEL_END, $this->selector );
$this->status = 'is';
$this->invalid_at = false;
$this->selector = '';
if ( $this->next_selector_at ) {
$this->at = $this->css_close_media_section( $this->at );
$this->at = $this->css_new_media_section( $this->at, $this->next_selector_at );
$this->next_selector_at = '';
}
}
} elseif ( ! $pn ) {
$this->sub_value .= $a_string[ $i ];
if ( ctype_space( $a_string[ $i ] ) || ',' === $a_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 = $a_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 && ( '(' === $a_string[ $i ] || '"' === $a_string[ $i ] || '\\' === $a_string[ $i ] ) && ! $this->escaped( $a_string, $i ) ) {
$this->cur_string[] = $a_string[ $i ];
$this->str_char[] = ( '(' === $a_string[ $i ] ) ? ')' : $a_string[ $i ];
$this->from[] = 'instr';
$this->quoted_string[] = ( ')' === $_str_char && '(' !== $a_string[ $i ] && '(' === trim( $_cur_string ) ) ? $_quoted_string : ( '(' !== $a_string[ $i ] );
continue 2;
}
if ( ')' !== $_str_char && ( "\n" === $a_string[ $i ] || "\r" === $a_string[ $i ] ) && ! ( '\\' === $a_string[ $i - 1 ] && ! $this->escaped( $a_string, $i - 1 ) ) ) {
$temp_add = '\\A';
$this->log( 'Fixed incorrect newline in string', 'Warning' );
}
$_cur_string .= $temp_add;
if ( $a_string[ $i ] === $_str_char && ! $this->escaped( $a_string, $i ) ) {
$this->status = array_pop( $this->from );
if ( ! preg_match( '|[' . implode( '', $this->data['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->quoted_string );
array_pop( $this->str_char );
if ( ')' === $_str_char ) {
$_cur_string = '(' . trim( substr( $_cur_string, 1, -1 ) ) . ')';
}
if ( 'iv' === $this->status ) {
if ( ! $_quoted_string ) {
if ( str_contains( $_cur_string, ',' ) ) {
// We can on only remove space next to ','.
$_cur_string = implode( ',', array_map( 'trim', explode( ',', $_cur_string ) ) );
}
// and multiple spaces (too expensive).
if ( str_contains( $_cur_string, ' ' ) ) {
$_cur_string = preg_replace( ',\s+,', ' ', $_cur_string );
}
}
$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 ( '*' === $a_string[ $i ] && '/' === $a_string[ $i + 1 ] ) {
$this->status = array_pop( $this->from );
++$i;
if ( strlen( $cur_comment ) > 1 && str_starts_with( $cur_comment, '!' ) ) {
$this->_add_token( self::IMPORTANT_COMMENT, $cur_comment );
$this->css_add_important_comment( $cur_comment );
} else {
$this->_add_token( self::COMMENT, $cur_comment );
}
$cur_comment = '';
} else {
$cur_comment .= $a_string[ $i ];
}
break;
}
}
$this->optimise->postparse();
$this->print->_reset();
// Set locale back to original setting.
@setlocale( LC_ALL, $old ); // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
return ! ( empty( $this->css ) && empty( $this->import ) && empty( $this->charset ) && empty( $this->tokens ) && empty( $this->namespace ) );
}
/**
* Quoting: format() in font-face needs quoted values for some browser (FF at least).
*
* @since 1.0.0
*
* @param string $value Value.
* @return string String.
*/
protected function quote_font_format( string $value ): string {
if ( str_starts_with( $value, 'format' ) ) {
$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.
*
* @since 1.0.0
*/
protected function explode_selectors(): void {
// Explode multiple selectors.
if ( 1 === $this->get_cfg( 'merge_selectors' ) ) {
$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.
*
* @since 1.0.0
*
* @param string $a_string String.
* @param int $pos Position.
* @return bool Whether a character is escaped.
*/
public function escaped( string &$a_string, int $pos ): bool {
return $pos ? ! ( @( '\\' !== $a_string[ $pos - 1 ] ) || $this->escaped( $a_string, $pos - 1 ) ) : false; // phpcs:ignore WordPress.PHP.NoSilencedErrors.Discouraged
}
/**
* Adds an important comment to the CSS code (one we want to keep when minifying).
*
* @since 1.10.0
*
* @param string $comment CSS Comment.
*/
protected function css_add_important_comment( string $comment ): void {
if ( $this->get_cfg( 'preserve_css' ) || '' === trim( $comment ) ) {
return;
}
if ( ! isset( $this->css['!'] ) ) {
$this->css['!'] = '';
} else {
$this->css['!'] .= "\n";
}
$this->css['!'] .= $comment;
}
/**
* Adds a property with value to the existing CSS code.
*
* @since 1.0.0
*
* @param string $media Media.
* @param string $selector Selector.
* @param string $property Property.
* @param string $new_val New value.
*/
protected function css_add_property( string $media, string $selector, string $property, string $new_val ): void {
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 );
}
}
/**
* Checks if a current media section is the continuation of the last one.
* If not increase the name of the media section to avoid a merging.
*
* @since 1.10.0
*
* @param int|string $media Media.
* @return int|string [return value]
*/
protected function css_check_last_media_section_or_inc( $media ) /* : int|string */ {
// Are we starting?
if ( empty( $this->css ) || ! is_array( $this->css ) ) {
return $media;
}
// If the last @media is the same as this, keep it.
$at = array_key_last( $this->css );
if ( $at === $media ) {
return $media;
}
// Otherwise increase the section in the array.
while ( isset( $this->css[ $media ] ) ) {
if ( is_numeric( $media ) ) {
++$media;
} else {
$media .= ' ';
}
}
return $media;
}
/**
* Starts a new media section.
*
* Check if the media is not already known, else rename it with extra spaces to avoid merging.
*
* @since 1.0.0
*
* @param string|int $current_media Media.
* @param string $new_media Media.
* @param bool $at_root Optional. Default false.
* @return int|string [return value]
*/
protected function css_new_media_section( $current_media, string $new_media, bool $at_root = false ) /* : int|string */ {
if ( $this->get_cfg( 'preserve_css' ) ) {
return $new_media;
}
// If we already are in a media and CSS level is 3, manage nested medias.
if ( $current_media
&& ! $at_root
// Numeric $current_media means self::DEFAULT_AT or inc.
&& ! is_numeric( $current_media )
&& str_starts_with( $this->get_cfg( 'css_level' ), 'CSS3' ) ) {
$new_media = rtrim( $current_media ) . '{' . rtrim( $new_media );
}
return $this->css_check_last_media_section_or_inc( $new_media );
}
/**
* Closes a media section.
*
* Finds the parent media we were in before or the root.
*
* @since 1.10.0
*
* @param string $current_media Current Media.
* @return string [return value]
*/
protected function css_close_media_section( string $current_media ): string {
if ( $this->get_cfg( 'preserve_css' ) ) {
return '';
}
if ( str_contains( $current_media, '{' ) ) {
$current_media = explode( '{', $current_media );
array_pop( $current_media );
$current_media = implode( '{', $current_media );
return $current_media;
}
return '';
}
/**
* Starts 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.
*
* @since 1.0.0
*
* @param string $media Media.
* @param string $selector Selector.
* @return string [return value]
*/
protected function css_new_selector( string $media, string $selector ): string {
if ( $this->get_cfg( 'preserve_css' ) ) {
return $selector;
}
$selector = trim( $selector );
if ( ! str_starts_with( $selector, '@font-face' ) ) {
if ( false !== $this->settings['merge_selectors'] ) {
return $selector;
}
if ( empty( $this->css ) || ! isset( $this->css[ $media ] ) || ! $this->css[ $media ] ) {
return $selector;
}
// If last is the same, keep it.
$sel = array_key_last( $this->css[ $media ] );
if ( $sel === $selector ) {
return $selector;
}
}
while ( isset( $this->css[ $media ][ $selector ] ) ) {
$selector .= ' ';
}
return $selector;
}
/**
* Starts a new property.
*
* If already referenced in this selector, rename it with extra space to avoid override.
*
* @since 1.0.0
*
* @param string $media Media.
* @param string $selector Selector.
* @param string $property Property.
* @return string [return value]
*/
protected function css_new_property( string $media, string $selector, string $property ): string {
if ( $this->get_cfg( 'preserve_css' ) ) {
return $property;
}
if ( empty( $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.
*
* @since 1.0.0
*
* @param string $media Media.
* @param string $selector Selector.
* @param array<string, string> $css_add Additional CSS.
*/
public function merge_css_blocks( string $media, string $selector, array $css_add ): void {
foreach ( $css_add as $property => $value ) {
$this->css_add_property( $media, $selector, $property, $value );
}
}
/**
* Checks if $value is !important.
*
* @since 1.0.0
*
* @param string $value Value.
* @return bool Whether the value has the !important keyword.
*/
public function is_important( string &$value ): bool {
return (
str_contains( $value, '!' ) // Quick test.
&& ! strcasecmp( substr( str_replace( $this->data['csstidy']['whitespace'], '', $value ), -10, 10 ), '!important' ) );
}
/**
* Returns a value without !important.
*
* @since 1.0.0
*
* @param string $value Value.
* @return string Value without the !important;
*/
public function gvw_important( string $value ): string {
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.
*
* @since 1.0.0
*
* @param string $istring String.
* @param int $pos Position.
* @return bool [return value]
*/
protected function property_is_next( string $istring, int $pos ): bool {
$all_properties = &$this->data['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.
*
* @since 1.0.0
*
* @param string $property Property.
* @return bool Whether the property is valid.
*/
public function property_is_valid( string $property ): bool {
$property = strtolower( $property );
if ( str_starts_with( $property, '--' ) ) {
$property = '--custom'; // Replace custom properties with a temporary placeholder that is marked as valid in the list of properties.
} elseif ( in_array( trim( $property ), $this->data['csstidy']['multiple_properties'], true ) ) {
$property = trim( $property );
}
$all_properties = &$this->data['csstidy']['all_properties'];
return isset( $all_properties[ $property ] ) && str_contains( $all_properties[ $property ], strtoupper( $this->get_cfg( 'css_level' ) ) );
}
/**
* 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")
*
* @since 1.0.0
*
* @param string $value [description].
* @return string[] [description]
*/
public function parse_string_list( string $value ): array {
$value = trim( $value );
// Case: empty.
if ( ! $value ) {
return array();
}
$a_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;
$a_strings[] = $current_string;
$current_string = '';
} elseif ( '"' === $value[ $i ] || "'" === $value[ $i ] ) {
if ( $in_str === $value[ $i ] ) {
$a_strings[] = $current_string;
$in_str = false;
$current_string = '';
continue;
} elseif ( ! $in_str ) {
$in_str = $value[ $i ];
}
} else { // phpcs:ignore Universal.ControlStructures.DisallowLonelyIf.Found
if ( $in_str ) {
$current_string .= $value[ $i ];
} else { // phpcs:ignore Universal.ControlStructures.DisallowLonelyIf.Found
if ( ! preg_match( '/[\s,]/', $value[ $i ] ) ) {
$in_str = true;
$current_string = $value[ $i ];
}
}
}
}
if ( $current_string ) {
$a_strings[] = $current_string;
}
return $a_strings;
}
} // class TablePress_CSSTidy