1 <?php

     2 

     3 /**

     4 * 

     5 * Parses for strongly-emphasized 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: Strong.php,v 1.3 2005/02/23 17:38:29 pmjones Exp $

    16 * 

    17 */

    18 

    19 

    20 /**

    21 * 

    22 * Parses for strongly-emphasized text.

    23 * 

    24 * This class implements a Text_Wiki_Parse to find source text marked for

    25 * strong emphasis (bold) as defined by text surrounded by three

    26 * single-quotes. On parsing, the text itself is left in place, but the

    27 * starting and ending instances of three single-quotes are replaced with

    28 * tokens.

    29 *

    30 * @category Text

    31 * 

    32 * @package Text_Wiki

    33 * 

    34 * @author Paul M. Jones <pmjones@php.net>

    35 * 

    36 */

    37 

    38 class Text_Wiki_Parse_Strong extends Text_Wiki_Parse {

    39     

    40     

    41     /**

    42     * 

    43     * The regular expression used to parse the source text and find

    44     * matches conforming to this rule.  Used by the parse() method.

    45     * 

    46     * @access public

    47     * 

    48     * @var string

    49     * 

    50     * @see parse()

    51     * 

    52     */

    53     

    54     var $regex =  "/\*\*(.*?)\*\*/";

    55     

    56     

    57     /**

    58     * 

    59     * Generates a replacement for the matched text.  Token options are:

    60     * 

    61     * 'type' => ['start'|'end'] The starting or ending point of the

    62     * emphasized text.  The text itself is left in the source.

    63     * 

    64     * @access public

    65     *

    66     * @param array &$matches The array of matches from parse().

    67     *

    68     * @return A pair of delimited tokens to be used as a placeholder in

    69     * the source text surrounding the text to be emphasized.

    70     *

    71     */

    72     

    73     function process(&$matches)

    74     {

    75         $start = $this->wiki->addToken(

    76             $this->rule, array('type' => 'start')

    77         );

    78         

    79         $end = $this->wiki->addToken(

    80             $this->rule, array('type' => 'end')

    81         );

    82         

    83         return $start . $matches[1] . $end;

    84     }

    85 }

    86 ?>