File: /var/www/html/nsci/wp-content/plugins/tablepress/libraries/csstidy/class.csstidy_print.php
<?php
/**
* CSSTidy Printing 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!' );
/**
* CSS Printing class
*
* This class prints CSS data generated by CSSTidy.
*
* @package CSSTidy
* @version 1.1.0
*/
class TablePress_CSSTidy_print {
/**
* TablePress_CSSTidy instance.
*
* @since 1.0.0
* @var TablePress_CSSTidy
*/
public $parser;
/**
* The parsed CSS.
*
* @since 1.0.0
* @var array
*/
public $css = array();
/**
* The output templates.
*
* @since 1.0.0
* @var array
*/
public $template = array();
/**
* The raw parsed CSS.
*
* @since 1.0.0
* @var array
*/
public $tokens = array();
/**
* The CSS charset.
*
* @since 1.0.0
* @var string
*/
public $charset = '';
/**
* All @import URLs.
*
* @since 1.0.0
* @var array
*/
public $import = array();
/**
* The namespace.
*
* @since 1.0.0
* @var string
*/
public $namespace = '';
/**
* Saves the input CSS string.
*
* @since 1.0.0
* @var string
*/
public $input_css = '';
/**
* Saves the formatted CSS string.
*
* @since 1.0.0
* @var string
*/
public $output_css = '';
/**
* Saves the formatted CSS string (plain text).
*
* @since 1.0.0
* @var string
*/
public $output_css_plain = '';
/**
* Constructor.
*
* @since 1.0
*
* @param TablePress_CSSTidy $css Instance of the TablePress_CSSTidy class.
*/
public function __construct( $css ) {
$this->parser = $css;
$this->css = &$css->css;
$this->template = &$css->template;
$this->tokens = &$css->tokens;
$this->charset = &$css->charset;
$this->import = &$css->import;
$this->namespace = &$css->namespace;
}
/**
* Resets output_css and output_css_plain (new css code).
*
* @since 1.0
*/
public function _reset() {
$this->output_css = '';
$this->output_css_plain = '';
}
/**
* Returns the CSS code as plain text.
*
* @since 1.0
*
* @param string $default_media Optional. Default @media to add to selectors without any @media.
* @return string Plain CSS.
*/
public function plain( $default_media = '' ) {
$this->_print( true, $default_media );
return $this->output_css_plain;
}
/**
* Returns the formatted CSS code.
*
* @since 1.0
*
* @param string $default_media Optional. Default @media to add to selectors without any @media.
* @return string Formatted CSS.
*/
public function formatted( $default_media = '' ) {
$this->_print( false, $default_media );
return $this->output_css;
}
/**
* Returns the formatted CSS code to make a complete webpage.
*
* @since 1.0
*
* @param string $doctype Optional. Shorthand for the document type.
* @param bool $externalcss Optional. Indicates whether styles to be attached internally or as an external stylesheet.
* @param string $title Optional. Title to be added in the head of the document.
* @param string $lang Optional. Two-letter language code to be added to the output.
* @return string Formatted CSS for a full page.
*/
public function formatted_page( $doctype = 'html5', $externalcss = true, $title = '', $lang = 'en' ) {
switch ( $doctype ) {
case 'html5':
$doctype_output = '<!DOCTYPE html>';
break;
case 'xhtml1.0strict':
$doctype_output = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">';
break;
case 'xhtml1.1':
default:
$doctype_output = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">';
break;
}
$output = '';
$this->output_css_plain = &$output;
$output .= $doctype_output . "\n" . '<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="' . $lang . '"';
$output .= ( 'xhtml1.1' === $doctype ) ? '>' : ' lang="' . $lang . '">';
$output .= "\n<head>\n\t<title>{$title}</title>";
if ( $externalcss ) {
$output .= "\n\t<style>\n";
$output .= file_get_contents( 'cssparsed.css' ); // Adds an invisible BOM or something, but not in css_optimised.php
$output .= "\n</style>";
} else {
$output .= "\n" . '<link rel="stylesheet" type="text/css" href="cssparsed.css" />';
}
$output .= "\n</head>\n<body><code id=\"copytext\">";
$output .= $this->formatted();
$output .= '</code>' . "\n" . '</body></html>';
return $this->output_css_plain;
}
/**
* Returns the formatted CSS Code and saves it into $this->output_css and $this->output_css_plain.
*
* @since 1.0
*
* @param bool $plain Optional. Plain text or not.
* @param string $default_media Optional. Default @media to add to selectors without any @media.
*/
protected function _print( $plain = false, $default_media = '' ) {
if ( $this->output_css && $this->output_css_plain ) {
return;
}
$output = '';
if ( ! $this->parser->get_cfg( 'preserve_css' ) ) {
$this->_convert_raw_css( $default_media );
}
$template = &$this->template;
if ( $plain ) {
$template = array_map( 'strip_tags', $template );
}
if ( $this->parser->get_cfg( 'timestamp' ) ) {
array_unshift( $this->tokens, array( COMMENT, ' CSSTidy ' . $this->parser->version . ': ' . date( 'r' ) . ' ' ) );
}
if ( ! empty( $this->charset ) ) {
$output .= $template[0] . '@charset ' . $template[5] . $this->charset . $template[6] . $template[13];
}
if ( ! empty( $this->import ) ) {
for ( $i = 0, $size = count( $this->import ); $i < $size; $i++ ) {
$import_components = explode( ' ', $this->import[ $i ] );
if ( 'url(' === substr( $import_components[0], 0, 4 ) && ')' === substr( $import_components[0], -1, 1 ) ) {
$import_components[0] = '\'' . trim( substr( $import_components[0], 4, -1 ), "'\"" ) . '\'';
$this->import[ $i ] = implode( ' ', $import_components );
$this->parser->log( 'Optimised @import : Removed "url("', 'Information' );
} elseif ( ! preg_match( '/^".+"$/', $this->import[ $i ] ) ) {
// Fixes a bug for @import ".." instead of the expected @import url("..")/
// If it comes in due to @import ".." the "" will be missing and the output will become @import .. (which is an error)/
$this->import[ $i ] = '"' . $this->import[ $i ] . '"';
}
$output .= $template[0] . '@import ' . $template[5] . $this->import[ $i ] . $template[6] . $template[13];
}
}
if ( ! empty( $this->namespace ) ) {
if ( false !== ( $p = strpos( $this->namespace, 'url(' ) ) && ')' === substr( $this->namespace, -1, 1 ) ) {
$this->namespace = substr_replace( $this->namespace, '"', $p, 4 );
$this->namespace = substr( $this->namespace, 0, -1 ) . '"';
$this->parser->log( 'Optimised @namespace : Removed "url("', 'Information' );
}
$output .= $template[0] . '@namespace ' . $template[5] . $this->namespace . $template[6] . $template[13];
}
$in_at_out = array();
$out = &$output;
$indent_level = 0;
foreach ( $this->tokens as $key => $token ) {
switch ( $token[0] ) {
case AT_START:
if ( $this->parser->get_cfg( 'preserve_css' ) ) {
$token[1] = str_replace( ',', ",\n", $token[1] );
}
$out .= $template[0] . $this->_htmlsp( $token[1], $plain ) . $template[1];
$indent_level++;
if ( ! isset( $in_at_out[ $indent_level ] ) ) {
$in_at_out[ $indent_level ] = '';
}
$out = &$in_at_out[ $indent_level ];
break;
case SEL_START:
if ( $this->parser->get_cfg( 'lowercase_s' ) ) {
$token[1] = strtolower( $token[1] );
}
if ( $this->parser->get_cfg( 'preserve_css' ) ) {
$token[1] = str_replace( ',', ",\n", $token[1] );
}
$out .= ( '@' !== $token[1][0] ) ? $template[2] . $this->_htmlsp( $token[1], $plain ) : $template[0] . $this->_htmlsp( $token[1], $plain );
$out .= $template[3];
break;
case PROPERTY:
if ( 2 === $this->parser->get_cfg( 'case_properties' ) ) {
$token[1] = strtoupper( $token[1] );
} elseif ( 1 === $this->parser->get_cfg( 'case_properties' ) ) {
$token[1] = strtolower( $token[1] );
}
$out .= $template[4] . $this->_htmlsp( $token[1], $plain ) . ':' . $template[5];
break;
case VALUE:
$out .= $this->_htmlsp( $token[1], $plain );
if ( SEL_END === $this->_seeknocomment( $key, 1 ) && $this->parser->get_cfg( 'remove_last_;' ) ) {
$out .= str_replace( ';', '', $template[6] );
} else {
$out .= $template[6];
}
if ( $this->parser->get_cfg( 'preserve_css' ) ) {
$out .= ( COMMENT === $this->tokens[ $key + 1 ][0] ) ? ' ' : "\n";
}
break;
case SEL_END:
$out .= $template[7];
if ( AT_END !== $this->_seeknocomment( $key, 1 ) ) {
$out .= $template[8];
}
break;
case AT_END:
if ( strlen( $template[10] ) ) {
// Indent the block we are closing.
$out = str_replace( "\n\n", "\r\n", $out ); // Don't fill empty lines.
$out = str_replace( "\n", "\n" . $template[10], $out );
$out = str_replace( "\r\n", "\n\n", $out );
}
if ( $indent_level > 1 ) {
$out = &$in_at_out[ $indent_level - 1 ];
} else {
$out = &$output;
}
$out .= $template[10] . $in_at_out[ $indent_level ];
if ( AT_END !== $this->_seeknocomment( $key, 1 ) ) {
$out .= $template[9];
} else {
$out .= rtrim( $template[9] );
}
unset( $in_at_out[ $indent_level ] );
$indent_level--;
break;
case IMPORTANT_COMMENT:
case COMMENT:
$out .= $template[11] . '/*' . $this->_htmlsp( $token[1], $plain ) . '*/' . $template[12];
break;
}
}
if ( ! $this->parser->get_cfg( 'preserve_css' ) ) {
$output = str_replace( ' !important', '!important', $output );
}
$output = trim( $output );
if ( ! $plain ) {
$this->output_css = $output;
$this->_print( true );
} else {
// If using spaces in the template, don't want these to appear in the plain output.
$this->output_css_plain = str_replace( ' ', '', $output );
}
}
/**
* Gets the next token type which is $move away from $key, excluding comments.
*
* @since 1.0
*
* @param int $key Current position.
* @param int $move Move this far.
* @return mixed A token type.
*/
protected function _seeknocomment( $key, $move ) {
$go = ( $move > 0 ) ? 1 : -1;
for ( $i = $key + 1; abs( $key - $i ) - 1 < abs( $move ); $i += $go ) {
if ( ! isset( $this->tokens[ $i ] ) ) {
return;
}
if ( COMMENT === $this->tokens[ $i ][0] ) {
$move += 1;
continue;
}
return $this->tokens[ $i ][0];
}
}
/**
* Converts $this->css array to a raw array ($this->tokens).
*
* @since 1.0.0
*
* @param string $default_media Optional. Default @media to add to selectors without any @media.
*/
protected function _convert_raw_css( $default_media = '' ) {
$this->tokens = array();
$sort_selectors = $this->parser->get_cfg( 'sort_selectors' );
$sort_properties = $this->parser->get_cfg( 'sort_properties' );
// Important comment section?
if ( isset( $this->css['!'] ) ) {
$this->parser->_add_token( IMPORTANT_COMMENT, rtrim( $this->css['!'] ), true );
unset( $this->css['!'] );
}
foreach ( $this->css as $medium => $val ) {
if ( $sort_selectors ) {
ksort( $val );
}
if ( (int) $medium < DEFAULT_AT ) {
// un medium vide (contenant @font-face ou autre @) ne produit aucun conteneur
if ( strlen( trim( $medium ) ) ) {
$parts_to_open = explode( '{', $medium );
foreach ( $parts_to_open as $part ) {
$this->parser->_add_token( AT_START, $part, true );
}
}
} elseif ( $default_media ) {
$this->parser->_add_token( AT_START, $default_media, true );
}
foreach ( $val as $selector => $vali ) {
if ( $sort_properties ) {
ksort( $vali );
}
$this->parser->_add_token( SEL_START, $selector, true );
$invalid = array(
'*' => array(), // IE7 hacks first
'_' => array(), // IE6 hacks
'/' => array(), // IE6 hacks
'-' => array(), // IE6 hacks
);
foreach ( $vali as $property => $valj ) {
if ( 0 !== strncmp( $property, '//', 2 ) ) {
$matches = array();
if ( $sort_properties && preg_match( '/^(\*|_|\/|-)(?!(ms|moz|o\b|xv|atsc|wap|khtml|webkit|ah|hp|ro|rim|tc)-)/', $property, $matches ) ) {
$invalid[ $matches[1] ][ $property ] = $valj;
} else {
$this->parser->_add_token( PROPERTY, $property, true );
$this->parser->_add_token( VALUE, $valj, true );
}
}
}
foreach ( $invalid as $prefix => $props ) {
foreach ( $props as $property => $valj ) {
$this->parser->_add_token( PROPERTY, $property, true );
$this->parser->_add_token( VALUE, $valj, true );
}
}
$this->parser->_add_token( SEL_END, $selector, true );
}
if ( (int) $medium < DEFAULT_AT ) {
// un medium vide (contenant @font-face ou autre @) ne produit aucun conteneur
if ( strlen( trim( $medium ) ) ) {
$parts_to_close = explode( '{', $medium );
foreach ( array_reverse( $parts_to_close ) as $part ) {
$this->parser->_add_token( AT_END, $part, true );
}
}
} elseif ( $default_media ) {
$this->parser->_add_token( AT_END, $default_media, true );
}
}
}
/**
* Same as htmlspecialchars, only that chars are not replaced if $plain is true. This makes print_code() cleaner.
*
* @since 1.0
*
* @see CSSTidy_print::_print()
*
* @param string $string String.
* @param bool $plain Print plain?
* @return string [return value]
*/
protected function _htmlsp( $string, $plain ) {
if ( ! $plain ) {
return htmlspecialchars( $string, ENT_QUOTES, 'utf-8' );
}
return $string;
}
/**
* Get compression ratio.
*
* @since 1.2
*
* @return double Compression ratio.
*/
public function get_ratio() {
if ( ! $this->output_css_plain ) {
$this->formatted();
}
return round( ( strlen( $this->input_css ) - strlen( $this->output_css_plain ) ) / strlen( $this->input_css ), 3 ) * 100;
}
/**
* Get difference between the old and new code in bytes and prints the code if necessary.
*
* @since 1.1
*
* @return string Size difference.
*/
public function get_diff() {
if ( ! $this->output_css_plain ) {
$this->formatted();
}
$diff = strlen( $this->output_css_plain ) - strlen( $this->input_css );
if ( $diff > 0 ) {
return '+' . $diff;
} elseif ( 0 === $diff ) {
return '+-' . $diff;
}
return $diff;
}
/**
* Get the size of either input or output CSS in kilobytes (KB).
*
* @since 1.0
*
* @param string $loc Optional. Location of the CSS.
* @return int Size of the CSS.
*/
public function size( $loc = 'output' ) {
if ( 'output' === $loc && ! $this->output_css ) {
$this->formatted();
}
if ( 'input' === $loc ) {
return strlen( $this->input_css ) / 1000;
} else {
return strlen( $this->output_css_plain ) / 1000;
}
}
} // class TablePress_CSSTidy_print