130 lines
2.8 KiB
PHP
130 lines
2.8 KiB
PHP
<?php
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/**
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*
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* Looks through parsed text and builds a table of contents.
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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: Toc.php,v 1.4 2005/05/28 21:33:02 pmjones Exp $
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*
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*/
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/**
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*
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* Looks through parsed text and builds a table of contents.
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*
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* This class implements a Text_Wiki_Parse to find all heading tokens and
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* build a table of contents. The [[toc]] tag gets replaced with a list
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* of all the level-2 through level-6 headings.
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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_Toc 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 = "/\n\[\[toc( .*)?\]\]\n/m";
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/**
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*
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* Generates a replacement for the matched text.
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*
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* Token options are:
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*
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* 'type' => ['list_start'|'list_end'|'item_start'|'item_end'|'target']
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*
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* 'level' => The heading level (1-6).
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*
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* 'count' => Which entry number this is in the list.
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*
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* @access public
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*
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* @param array &$matches The array of matches from parse().
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*
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* @return string A token indicating the TOC collection point.
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*
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*/
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function process(&$matches)
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{
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$count = 0;
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if (isset($matches[1])) {
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$attr = $this->getAttrs(trim($matches[1]));
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} else {
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$attr = array();
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}
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$output = $this->wiki->addToken(
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$this->rule,
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array(
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'type' => 'list_start',
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'level' => 0,
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'attr' => $attr
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)
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);
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foreach ($this->wiki->getTokens('Heading') as $key => $val) {
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if ($val[1]['type'] != 'start') {
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continue;
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}
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$options = array(
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'type' => 'item_start',
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'id' => $val[1]['id'],
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'level' => $val[1]['level'],
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'count' => $count ++
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);
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$output .= $this->wiki->addToken($this->rule, $options);
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$output .= $val[1]['text'];
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$output .= $this->wiki->addToken(
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$this->rule,
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array(
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'type' => 'item_end',
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'level' => $val[1]['level']
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)
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);
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}
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$output .= $this->wiki->addToken(
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$this->rule, array(
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'type' => 'list_end',
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'level' => 0
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)
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);
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return "\n$output\n";
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}
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}
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?>
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