1<?php 2 3/** 4* 5* Parses for subscripted text. 6* 7* @category Text 8* 9* @package Text_Wiki 10* 11* @author Paul M. Jones <pmjones@php.net> 12* 13* @license LGPL 14* 15* @version $Id$ 16* 17*/ 18 19/** 20* 21* Parses for subscripted text. 22* 23* @category Text 24* 25* @package Text_Wiki 26* 27* @author Paul M. Jones <pmjones@php.net> 28* 29*/ 30 31class Text_Wiki_Parse_Subscript extends Text_Wiki_Parse { 32 33 34 /** 35 * 36 * The regular expression used to parse the source text and find 37 * matches conforming to this rule. Used by the parse() method. 38 * 39 * @access public 40 * 41 * @var string 42 * 43 * @see parse() 44 * 45 */ 46 47 var $regex = '/<sub>(()|.*)<\/sub>/U'; 48 49 50 /** 51 * 52 * Generates a replacement for the matched text. Token options are: 53 * 54 * 'type' => ['start'|'end'] The starting or ending point of the 55 * emphasized text. The text itself is left in the source. 56 * 57 * @access public 58 * 59 * @param array &$matches The array of matches from parse(). 60 * 61 * @return A pair of delimited tokens to be used as a placeholder in 62 * the source text surrounding the text to be emphasized. 63 * 64 */ 65 66 function process(&$matches) 67 { 68 $start = $this->wiki->addToken( 69 $this->rule, array('type' => 'start') 70 ); 71 72 $end = $this->wiki->addToken( 73 $this->rule, array('type' => 'end') 74 ); 75 76 return $start . $matches[1] . $end; 77 } 78} 79?>