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<?php
/**
* CSSTidy - CSS Parser and Optimiser
*
* CSS Printing class
* This class prints CSS data generated by csstidy.
*
* This file is part of CSSTidy.
*
* CSSTidy is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with CSSTidy; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
* @license http://opensource.org/licenses/gpl-license.php GNU Public License
* @package csstidy
* @author Florian Schmitz (floele at gmail dot com) 2005-2006
*/
/**
* CSS Printing class
*
* This class prints CSS data generated by csstidy.
*
* @package csstidy
* @author Florian Schmitz (floele at gmail dot com) 2005-2006
* @version 1.0
*/
class csstidy_print
{
/**
* Saves the input CSS string
* @var string
* @access private
*/
var $input_css = '';
/**
* Saves the formatted CSS string
* @var string
* @access public
*/
var $output_css = '';
/**
* Saves the formatted CSS string (plain text)
* @var string
* @access public
*/
var $output_css_plain = '';
/**
* Constructor
* @param array $css contains the class csstidy
* @access private
* @version 1.0
*/
function csstidy_print(&$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)
* @access private
* @version 1.0
*/
function _reset()
{
$this->output_css = '';
$this->output_css_plain = '';
}
/**
* Returns the CSS code as plain text
* @return string
* @access public
* @version 1.0
*/
function plain()
{
$this->_print(true);
return $this->output_css_plain;
}
/**
* Returns the formatted CSS code
* @return string
* @access public
* @version 1.0
*/
function formatted()
{
$this->_print(false);
return $this->output_css;
}
/**
* Returns the formatted CSS Code and saves it into $this->output_css and $this->output_css_plain
* @param bool $plain plain text or not
* @access private
* @version 2.0
*/
function _print($plain = false)
{
if ($this->output_css && $this->output_css_plain) {
return;
}
$output = '';
if (!$this->parser->get_cfg('preserve_css')) {
$this->_convert_raw_css();
}
$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];
}
if (!empty($this->import)) {
for ($i = 0, $size = count($this->import); $i < $size; $i ++) {
$output .= $template[0].'@import '.$template[5].$this->import[$i].$template[6];
}
}
if (!empty($this->namespace)) {
$output .= $template[0].'@namespace '.$template[5].$this->namespace.$template[6];
}
$output .= $template[13];
$in_at_out = '';
$out =& $output;
foreach ($this->tokens as $key => $token)
{
switch ($token[0])
{
case AT_START:
$out .= $template[0].$this->_htmlsp($token[1], $plain).$template[1];
$out =& $in_at_out;
break;
case SEL_START:
if($this->parser->get_cfg('lowercase_s')) $token[1] = strtolower($token[1]);
$out .= ($token[1]{0} !== '@') ? $template[2].$this->_htmlsp($token[1], $plain) : $template[0].$this->_htmlsp($token[1], $plain);
$out .= $template[3];
break;
case PROPERTY:
if($this->parser->get_cfg('case_properties') == 2) $token[1] = strtoupper($token[1]);
if($this->parser->get_cfg('case_properties') == 1) $token[1] = strtolower($token[1]);
$out .= $template[4] . $this->_htmlsp($token[1], $plain) . ':' . $template[5];
break;
case VALUE:
$out .= $this->_htmlsp($token[1], $plain);
if($this->_seeknocomment($key, 1) == SEL_END && $this->parser->get_cfg('remove_last_;')) {
$out .= str_replace(';', '', $template[6]);
} else {
$out .= $template[6];
}
break;
case SEL_END:
$out .= $template[7];
if($this->_seeknocomment($key, 1) != AT_END) $out .= $template[8];
break;
case AT_END:
$out =& $output;
$out .= $template[10] . str_replace("\n", "\n" . $template[10], $in_at_out);
$in_at_out = '';
$out .= $template[9];
break;
case COMMENT:
$out .= $template[11] . '/*' . $this->_htmlsp($token[1], $plain) . '*/' . $template[12];
break;
}
}
$output = trim($output);
if (!$plain) {
$this->output_css = $output;
$this->_print(true);
} else {
$this->output_css_plain = $output;
}
}
/**
* Gets the next token type which is $move away from $key, excluding comments
* @param integer $key current position
* @param integer $move move this far
* @return mixed a token type
* @access private
* @version 1.0
*/
function _seeknocomment($key, $move) {
$go = ($move > 0) ? 1 : -1;
for ($i = $key + 1; abs($key-$i)-1 < abs($move); $i += $go) {
if (!isset($this->tokens[$i])) {
return;
}
if ($this->tokens[$i][0] == COMMENT) {
$move += 1;
continue;
}
return $this->tokens[$i][0];
}
}
/**
* Converts $this->css array to a raw array ($this->tokens)
* @access private
* @version 1.0
*/
function _convert_raw_css()
{
$this->tokens = array();
foreach ($this->css as $medium => $val)
{
if ($this->parser->get_cfg('sort_selectors')) ksort($val);
if ($medium != DEFAULT_AT) {
$this->parser->_add_token(AT_START, $medium, true);
}
foreach ($val as $selector => $vali)
{
if ($this->parser->get_cfg('sort_properties')) ksort($vali);
$this->parser->_add_token(SEL_START, $selector, true);
foreach ($vali as $property => $valj)
{
$this->parser->_add_token(PROPERTY, $property, true);
$this->parser->_add_token(VALUE, $valj, true);
}
$this->parser->_add_token(SEL_END, $selector, true);
}
if ($medium != DEFAULT_AT) {
$this->parser->_add_token(AT_END, $medium, true);
}
}
}
/**
* Same as htmlspecialchars, only that chars are not replaced if $plain !== true. This makes print_code() cleaner.
* @param string $string
* @param bool $plain
* @return string
* @see csstidy_print::_print()
* @access private
* @version 1.0
*/
function _htmlsp($string, $plain)
{
if (!$plain) {
return htmlspecialchars($string);
}
return $string;
}
/**
* Get compression ratio
* @access public
* @return float
* @version 1.2
*/
function get_ratio()
{
if (!$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.
* @access public
* @return string
* @version 1.1
*/
function get_diff()
{
if (!$this->output_css_plain) {
$this->formatted();
}
$diff = strlen($this->output_css_plain) - strlen($this->input_css);
if ($diff > 0) {
return '+' . $diff;
} elseif ($diff == 0) {
return '+-' . $diff;
}
return $diff;
}
/**
* Get the size of either input or output CSS in KB
* @param string $loc default is "output"
* @access public
* @return integer
* @version 1.0
*/
function size($loc = 'output')
{
if ($loc == 'output' && !$this->output_css) {
$this->formatted();
}
if ($loc == 'input') {
return (strlen($this->input_css) / 1000);
} else {
return (strlen($this->output_css_plain) / 1000);
}
}
}
?>
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