142 lines
4.2 KiB
PHP
142 lines
4.2 KiB
PHP
<?php
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/* vim: set expandtab tabstop=4 shiftwidth=4: */
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// +----------------------------------------------------------------------+
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// | PHP version 4 |
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// +----------------------------------------------------------------------+
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// | Copyright (c) 1997-2003 The PHP Group |
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// +----------------------------------------------------------------------+
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// | This source file is subject to version 2.0 of the PHP license, |
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// | that is bundled with this package in the file LICENSE, and is |
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// | available through the world-wide-web at |
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// | http://www.php.net/license/2_02.txt. |
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// | If you did not receive a copy of the PHP license and are unable to |
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// | obtain it through the world-wide-web, please send a note to |
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// | license@php.net so we can mail you a copy immediately. |
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// +----------------------------------------------------------------------+
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// | Authors: Paul M. Jones <pmjones@ciaweb.net> |
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// +----------------------------------------------------------------------+
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//
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// $Id: paragraph.php,v 1.3 2004/12/02 10:54:32 nohn Exp $
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/**
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*
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* This class implements a Text_Wiki rule to find sections of the source
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* text that are paragraphs. A para is any line not starting with a token
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* delimiter, followed by two newlines.
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*
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* @author Paul M. Jones <pmjones@ciaweb.net>
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*
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* @package Text_Wiki
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*
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*/
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class Text_Wiki_Rule_paragraph extends Text_Wiki_Rule {
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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 $regex = "/^.*?\n\n/m";
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/**
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*
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* Generates a token entry for the matched text. Token options are:
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*
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* 'start' => The starting point of the paragraph.
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*
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* 'end' => The endinging point of the paragraph.
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*
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* @access public
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*
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* @param array &$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(&$matches)
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{
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$delim = $this->_wiki->delim;
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// was anything there?
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if (trim($matches[0]) == '') {
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return '';
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}
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// does the match start with a delimiter?
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if (substr($matches[0], 0, 1) != $delim) {
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// no.
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$start = $this->addToken(array('type' => 'start'));
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$end = $this->addToken(array('type' => 'end'));
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return $start . trim($matches[0]) . $end;
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}
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// the line starts with a delimiter. read in the delimited
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// token number, check the token, and see if we should
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// skip it.
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// loop starting at the second character (we already know
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// the first is a delimiter) until we find another
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// delimiter; the text between them is a token key number.
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$key = '';
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$len = strlen($matches[0]);
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for ($i = 1; $i < $len; $i++) {
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$char = $matches[0]{$i};
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if ($char == $delim) {
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break;
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} else {
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$key .= $char;
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}
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}
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// look at the token and see if it's skippable (if we skip,
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// it will not be marked as a paragraph)
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$token_type = $this->_wiki->_tokens[$key][0];
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if (in_array($token_type, $this->_conf['skip'])) {
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return $matches[0];
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} else {
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$start = $this->addToken(array('type' => 'start'));
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$end = $this->addToken(array('type' => 'end'));
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return $start . trim($matches[0]) . $end;
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}
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}
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/**
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*
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* Renders a token into text matching the requested format.
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*
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* @access public
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*
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* @param array $options The "options" portion of the token (second
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* element).
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*
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* @return string The text rendered from the token options.
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*
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*/
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function renderXhtml($options)
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{
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extract($options); //type
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if ($type == 'start') {
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return '<p>';
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}
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if ($type == 'end') {
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return "</p>\n\n";
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}
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}
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}
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?>
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