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: Subscript.php,v 1.1 2005/02/24 17:24:56 pmjones Exp $

    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 

    31 class 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 =  "/,,(()|.*),,/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 ?>