137 lines
3.3 KiB
PHP
137 lines
3.3 KiB
PHP
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<?php
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/**
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*
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* Parses for image placement.
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*
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* @category Text
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*
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* @package Text_Wiki
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*
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* @author Paul M. Jones <pmjones@php.net>
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*
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* @license LGPL
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*
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* @version $Id: Image.php,v 1.5 2005/09/12 11:34:44 toggg Exp $
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*
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*/
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/**
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*
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* Parses for image placement.
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*
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* @category Text
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*
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* @package Text_Wiki
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*
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* @author Paul M. Jones <pmjones@php.net>
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*
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*/
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class Text_Wiki_Parse_Image extends Text_Wiki_Parse {
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/**
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* URL schemes recognized by this rule.
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*
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* @access public
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* @var array
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*/
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var $conf = array(
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'schemes' => 'http|https|ftp|gopher|news',
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'host_regexp' => '(?:[^.\s/"\'<\\\#delim#\ca-\cz]+\.)*[a-z](?:[-a-z0-9]*[a-z0-9])?\.?',
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'path_regexp' => '(?:/[^\s"<\\\#delim#\ca-\cz]*)?'
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);
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/**
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*
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* The regular expression used to find source text matching this
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* rule.
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*
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* @access public
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*
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* @var string
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*
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*/
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var $regex = '/(\[\[image\s+)(.+?)(\]\])/i';
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/**
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* The regular expressions used to check ecternal urls
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*
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* @access public
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* @var string
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* @see parse()
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*/
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var $url = '';
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/**
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* Constructor.
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* We override the constructor to build up the url regex from config
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*
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* @param object &$obj the base conversion handler
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* @return The parser object
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* @access public
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*/
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function Text_Wiki_Parse_Image(&$obj)
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{
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$default = $this->conf;
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parent::Text_Wiki_Parse($obj);
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// convert the list of recognized schemes to a regex OR,
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$schemes = $this->getConf('schemes', $default['schemes']);
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$this->url = str_replace( '#delim#', $this->wiki->delim,
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'#(?:' . (is_array($schemes) ? implode('|', $schemes) : $schemes) . ')://'
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. $this->getConf('host_regexp', $default['host_regexp'])
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. $this->getConf('path_regexp', $default['path_regexp']) .'#');
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}
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/**
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*
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* Generates a token entry for the matched text. Token options are:
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*
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* 'src' => The image source, typically a relative path name.
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*
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* 'opts' => Any macro options following the source.
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*
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* @access public
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*
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* @param array &$matches The array of matches from parse().
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*
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* @return A delimited token number to be used as a placeholder in
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* the source text.
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*
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*/
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function process(&$matches)
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{
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$pos = strpos($matches[2], ' ');
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if ($pos === false) {
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$options = array(
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'src' => $matches[2],
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'attr' => array());
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} else {
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// everything after the space is attribute arguments
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$options = array(
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'src' => substr($matches[2], 0, $pos),
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'attr' => $this->getAttrs(substr($matches[2], $pos+1))
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);
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// check the scheme case of external link
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if (array_key_exists('link', $options['attr'])) {
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// external url ?
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if (($pos = strpos($options['attr']['link'], '://')) !== false) {
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if (!preg_match($this->url, $options['attr']['link'])) {
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return $matches[0];
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}
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} elseif (in_array('Wikilink', $this->wiki->disable)) {
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return $matches[0]; // Wikilink disabled
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}
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}
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}
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return $this->wiki->addToken($this->rule, $options);
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}
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}
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?>
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