107 lines
2.4 KiB
PHP
107 lines
2.4 KiB
PHP
<?php
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/**
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*
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* Parses for heading text.
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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: Heading.php,v 1.3 2005/02/23 17:38:29 pmjones Exp $
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*
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*/
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/**
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*
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* Parses for heading text.
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*
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* This class implements a Text_Wiki_Parse to find source text marked to
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* be a heading element, as defined by text on a line by itself prefixed
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* with a number of plus signs (+). The heading text itself is left in
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* the source, but is prefixed and suffixed with delimited tokens marking
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* the start and end of the heading.
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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_Heading extends Text_Wiki_Parse {
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/**
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*
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* The regular expression used to parse the source text and find
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* matches conforming to this rule. Used by the parse() method.
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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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* @see parse()
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*
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*/
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var $regex = '/^(\+{1,6}) (.*)/m';
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var $conf = array(
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'id_prefix' => 'toc'
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);
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/**
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*
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* Generates a replacement for the matched text. Token options are:
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*
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* 'type' => ['start'|'end'] The starting or ending point of the
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* heading text. The text itself is left in the source.
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*
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* @access public
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*
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* @param array &$matches The array of matches from parse().
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*
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* @return string A pair of delimited tokens to be used as a
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* placeholder in the source text surrounding the heading text.
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*
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*/
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function process(&$matches)
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{
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// keep a running count for header IDs. we use this later
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// when constructing TOC entries, etc.
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static $id;
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if (! isset($id)) {
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$id = 0;
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}
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$prefix = htmlspecialchars($this->getConf('id_prefix'));
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$start = $this->wiki->addToken(
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$this->rule,
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array(
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'type' => 'start',
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'level' => strlen($matches[1]),
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'text' => $matches[2],
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'id' => $prefix . $id ++
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)
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);
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$end = $this->wiki->addToken(
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$this->rule,
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array(
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'type' => 'end',
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'level' => strlen($matches[1])
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)
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);
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return $start . $matches[2] . $end . "\n";
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}
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}
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?>
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