409 lines
11 KiB
PHP
409 lines
11 KiB
PHP
<?php
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/**
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* CSSTidy - CSS Parser and Optimiser
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*
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* CSS Printing class
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* This class prints CSS data generated by csstidy.
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*
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* Copyright 2005, 2006, 2007 Florian Schmitz
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*
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* This file is part of CSSTidy.
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*
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* CSSTidy is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or
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* (at your option) any later version.
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*
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* CSSTidy is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* @license http://opensource.org/licenses/lgpl-license.php GNU Lesser General Public License
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* @package csstidy
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* @author Florian Schmitz (floele at gmail dot com) 2005-2007
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* @author Brett Zamir (brettz9 at yahoo dot com) 2007
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* @author Cedric Morin (cedric at yterium dot com) 2010
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*/
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/**
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* CSS Printing class
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*
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* This class prints CSS data generated by csstidy.
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*
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* @package csstidy
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* @author Florian Schmitz (floele at gmail dot com) 2005-2006
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* @version 1.0.1
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*/
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class csstidy_print {
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/**
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* Saves the input CSS string
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* @var string
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* @access private
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*/
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public $input_css = '';
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/**
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* Saves the formatted CSS string
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* @var string
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* @access public
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*/
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public $output_css = '';
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/**
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* Saves the formatted CSS string (plain text)
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* @var string
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* @access public
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*/
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public $output_css_plain = '';
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/**
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* Constructor
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* @param array $css contains the class csstidy
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* @access private
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* @version 1.0
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*/
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function csstidy_print(&$css) {
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$this->parser = & $css;
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$this->css = & $css->css;
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$this->template = & $css->template;
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$this->tokens = & $css->tokens;
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$this->charset = & $css->charset;
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$this->import = & $css->import;
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$this->namespace = & $css->namespace;
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}
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/**
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* Resets output_css and output_css_plain (new css code)
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* @access private
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* @version 1.0
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*/
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function _reset() {
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$this->output_css = '';
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$this->output_css_plain = '';
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}
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/**
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* Returns the CSS code as plain text
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* @param string $default_media default @media to add to selectors without any @media
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* @return string
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* @access public
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* @version 1.0
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*/
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function plain($default_media='') {
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$this->_print(true, $default_media);
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return $this->output_css_plain;
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}
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/**
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* Returns the formatted CSS code
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* @param string $default_media default @media to add to selectors without any @media
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* @return string
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* @access public
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* @version 1.0
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*/
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function formatted($default_media='') {
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$this->_print(false, $default_media);
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return $this->output_css;
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}
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/**
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* Returns the formatted CSS code to make a complete webpage
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* @param string $doctype shorthand for the document type
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* @param bool $externalcss indicates whether styles to be attached internally or as an external stylesheet
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* @param string $title title to be added in the head of the document
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* @param string $lang two-letter language code to be added to the output
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* @return string
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* @access public
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* @version 1.4
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*/
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function formatted_page($doctype='xhtml1.1', $externalcss=true, $title='', $lang='en') {
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switch ($doctype) {
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case 'xhtml1.0strict':
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$doctype_output = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
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"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">';
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break;
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case 'xhtml1.1':
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default:
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$doctype_output = '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
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"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">';
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break;
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}
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$output = $cssparsed = '';
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$this->output_css_plain = & $output;
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$output .= $doctype_output . "\n" . '<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="' . $lang . '"';
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$output .= ( $doctype === 'xhtml1.1') ? '>' : ' lang="' . $lang . '">';
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$output .= "\n<head>\n <title>$title</title>";
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if ($externalcss) {
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$output .= "\n <style type=\"text/css\">\n";
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$cssparsed = file_get_contents('cssparsed.css');
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$output .= $cssparsed; // Adds an invisible BOM or something, but not in css_optimised.php
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$output .= "\n</style>";
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} else {
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$output .= "\n" . ' <link rel="stylesheet" type="text/css" href="cssparsed.css" />';
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// }
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}
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$output .= "\n</head>\n<body><code id=\"copytext\">";
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$output .= $this->formatted();
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$output .= '</code>' . "\n" . '</body></html>';
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return $this->output_css_plain;
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}
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/**
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* Returns the formatted CSS Code and saves it into $this->output_css and $this->output_css_plain
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* @param bool $plain plain text or not
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* @param string $default_media default @media to add to selectors without any @media
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* @access private
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* @version 2.0
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*/
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function _print($plain = false, $default_media='') {
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if ($this->output_css && $this->output_css_plain) {
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return;
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}
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$output = '';
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if (!$this->parser->get_cfg('preserve_css')) {
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$this->_convert_raw_css($default_media);
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}
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$template = & $this->template;
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if ($plain) {
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$template = array_map('strip_tags', $template);
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}
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if ($this->parser->get_cfg('timestamp')) {
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array_unshift($this->tokens, array(COMMENT, ' CSSTidy ' . $this->parser->version . ': ' . date('r') . ' '));
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}
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if (!empty($this->charset)) {
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$output .= $template[0] . '@charset ' . $template[5] . $this->charset . $template[6];
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}
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if (!empty($this->import)) {
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for ($i = 0, $size = count($this->import); $i < $size; $i++) {
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$import_components = explode(' ', $this->import[$i]);
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if (substr($import_components[0], 0, 4) === 'url(' && substr($import_components[0], -1, 1) === ')') {
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$import_components[0] = '\'' . trim(substr($import_components[0], 4, -1), "'\"") . '\'';
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$this->import[$i] = implode(' ', $import_components);
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$this->parser->log('Optimised @import : Removed "url("', 'Information');
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}
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$output .= $template[0] . '@import ' . $template[5] . $this->import[$i] . $template[6];
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}
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}
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if (!empty($this->namespace)) {
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if (substr($this->namespace, 0, 4) === 'url(' && substr($this->namespace, -1, 1) === ')') {
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$this->namespace = '\'' . substr($this->namespace, 4, -1) . '\'';
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$this->parser->log('Optimised @namespace : Removed "url("', 'Information');
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}
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$output .= $template[0] . '@namespace ' . $template[5] . $this->namespace . $template[6];
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}
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$output .= $template[13];
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$in_at_out = '';
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$out = & $output;
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foreach ($this->tokens as $key => $token) {
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switch ($token[0]) {
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case AT_START:
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$out .= $template[0] . $this->_htmlsp($token[1], $plain) . $template[1];
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$out = & $in_at_out;
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break;
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case SEL_START:
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if ($this->parser->get_cfg('lowercase_s'))
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$token[1] = strtolower($token[1]);
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$out .= ( $token[1]{0} !== '@') ? $template[2] . $this->_htmlsp($token[1], $plain) : $template[0] . $this->_htmlsp($token[1], $plain);
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$out .= $template[3];
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break;
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case PROPERTY:
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if ($this->parser->get_cfg('case_properties') === 2) {
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$token[1] = strtoupper($token[1]);
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} elseif ($this->parser->get_cfg('case_properties') === 1) {
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$token[1] = strtolower($token[1]);
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}
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$out .= $template[4] . $this->_htmlsp($token[1], $plain) . ':' . $template[5];
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break;
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case VALUE:
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$out .= $this->_htmlsp($token[1], $plain);
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if ($this->_seeknocomment($key, 1) == SEL_END && $this->parser->get_cfg('remove_last_;')) {
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$out .= str_replace(';', '', $template[6]);
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} else {
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$out .= $template[6];
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}
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break;
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case SEL_END:
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$out .= $template[7];
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if ($this->_seeknocomment($key, 1) != AT_END)
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$out .= $template[8];
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break;
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case AT_END:
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$out = & $output;
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$out .= $template[10] . str_replace("\n", "\n" . $template[10], $in_at_out);
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$in_at_out = '';
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$out .= $template[9];
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break;
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case COMMENT:
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$out .= $template[11] . '/*' . $this->_htmlsp($token[1], $plain) . '*/' . $template[12];
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break;
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}
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}
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$output = trim($output);
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if (!$plain) {
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$this->output_css = $output;
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$this->_print(true);
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} else {
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// If using spaces in the template, don't want these to appear in the plain output
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$this->output_css_plain = str_replace(' ', '', $output);
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}
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}
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/**
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* Gets the next token type which is $move away from $key, excluding comments
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* @param integer $key current position
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* @param integer $move move this far
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* @return mixed a token type
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* @access private
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* @version 1.0
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*/
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function _seeknocomment($key, $move) {
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$go = ($move > 0) ? 1 : -1;
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for ($i = $key + 1; abs($key - $i) - 1 < abs($move); $i += $go) {
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if (!isset($this->tokens[$i])) {
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return;
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}
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if ($this->tokens[$i][0] == COMMENT) {
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$move += 1;
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continue;
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}
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return $this->tokens[$i][0];
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}
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}
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/**
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* Converts $this->css array to a raw array ($this->tokens)
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* @param string $default_media default @media to add to selectors without any @media
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* @access private
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* @version 1.0
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*/
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function _convert_raw_css($default_media='') {
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$this->tokens = array();
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foreach ($this->css as $medium => $val) {
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if ($this->parser->get_cfg('sort_selectors'))
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ksort($val);
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if (intval($medium) < DEFAULT_AT) {
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$this->parser->_add_token(AT_START, $medium, true);
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}
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elseif ($default_media) {
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$this->parser->_add_token(AT_START, $default_media, true);
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}
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foreach ($val as $selector => $vali) {
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if ($this->parser->get_cfg('sort_properties'))
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ksort($vali);
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$this->parser->_add_token(SEL_START, $selector, true);
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foreach ($vali as $property => $valj) {
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$this->parser->_add_token(PROPERTY, $property, true);
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$this->parser->_add_token(VALUE, $valj, true);
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}
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$this->parser->_add_token(SEL_END, $selector, true);
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}
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if (intval($medium) < DEFAULT_AT) {
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$this->parser->_add_token(AT_END, $medium, true);
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}
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elseif ($default_media) {
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$this->parser->_add_token(AT_END, $default_media, true);
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}
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}
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}
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/**
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* Same as htmlspecialchars, only that chars are not replaced if $plain !== true. This makes print_code() cleaner.
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* @param string $string
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* @param bool $plain
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* @return string
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* @see csstidy_print::_print()
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* @access private
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* @version 1.0
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*/
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function _htmlsp($string, $plain) {
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if (!$plain) {
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return htmlspecialchars($string, ENT_QUOTES, 'utf-8');
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}
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return $string;
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}
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/**
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* Get compression ratio
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* @access public
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* @return float
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* @version 1.2
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*/
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function get_ratio() {
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if (!$this->output_css_plain) {
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$this->formatted();
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}
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return round((strlen($this->input_css) - strlen($this->output_css_plain)) / strlen($this->input_css), 3) * 100;
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}
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/**
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* Get difference between the old and new code in bytes and prints the code if necessary.
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* @access public
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* @return string
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* @version 1.1
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*/
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function get_diff() {
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if (!$this->output_css_plain) {
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$this->formatted();
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}
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$diff = strlen($this->output_css_plain) - strlen($this->input_css);
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if ($diff > 0) {
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return '+' . $diff;
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} elseif ($diff == 0) {
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return '+-' . $diff;
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}
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return $diff;
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}
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/**
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* Get the size of either input or output CSS in KB
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* @param string $loc default is "output"
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* @access public
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* @return integer
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* @version 1.0
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*/
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function size($loc = 'output') {
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if ($loc === 'output' && !$this->output_css) {
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$this->formatted();
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}
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if ($loc === 'input') {
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return (strlen($this->input_css) / 1000);
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} else {
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return (strlen($this->output_css_plain) / 1000);
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}
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}
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}
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