Viewing file: Blockquote.php (4.7 KB) -rw-rw-rw- Select action/file-type: (+) | (+) | (+) | Code (+) | Session (+) | (+) | SDB (+) | (+) | (+) | (+) | (+) | (+) |
<?php
/** * * Parse for block-quoted text. * * @category Text * * @package Text_Wiki * * @author Paul M. Jones <pmjones@php.net> * * @license LGPL * * @version $Id: Blockquote.php 222150 2006-10-21 05:56:28Z justinpatrin $ * */
/** * * Parse for block-quoted text. * * Find source text marked as a blockquote, identified by any number of * greater-than signs '>' at the start of the line, followed by a space, * and then the quote text; each '>' indicates an additional level of * quoting. * * @category Text * * @package Text_Wiki * * @author Paul M. Jones <pmjones@php.net> * */
class Text_Wiki_Parse_Blockquote extends Text_Wiki_Parse { /** * * Regex for parsing the source text. * * @access public * * @var string * * @see parse() * */ var $regex = '/\n((\>).*\n)(?!(\>))/Us'; /** * * Generates a replacement for the matched text. * * Token options are: * * 'type' => * 'start' : the start of a blockquote * 'end' : the end of a blockquote * * 'level' => the indent level (0 for the first level, 1 for the * second, etc) * * @access public * * @param array &$matches The array of matches from parse(). * * @return A series of text and delimited tokens marking the different * list text and list elements. * */ function process(&$matches) { // the replacement text we will return to parse() $return = "\n"; // the list of post-processing matches $list = array(); // $matches[1] is the text matched as a list set by parse(); // create an array called $list that contains a new set of // matches for the various list-item elements. preg_match_all( '=^(\>+) (.*\n)=Ums', $matches[1], $list, PREG_SET_ORDER ); $curLevel = 0;
// loop through each list-item element. foreach ($list as $key => $val) { // $val[0] is the full matched list-item line // $val[1] is the number of initial '>' chars (indent level) // $val[2] is the quote text // we number levels starting at 1, not zero $level = strlen($val[1]); // add a level to the list? while ($level > $curLevel) { // the current indent level is greater than the number // of stack elements, so we must be starting a new // level. push the new level onto the stack with a // dummy value (boolean true)... ++$curLevel; //$return .= "\n"; // ...and add a start token to the return. $return .= $this->wiki->addToken( $this->rule, array( 'type' => 'start', 'level' => $curLevel ) ); //$return .= "\n\n"; } // remove a level? while ($curLevel > $level) { // as long as the stack count is greater than the // current indent level, we need to end list types. // continue adding end-list tokens until the stack count // and the indent level are the same. //$return .= "\n\n"; $return .= $this->wiki->addToken( $this->rule, array ( 'type' => 'end', 'level' => $curLevel ) ); //$return .= "\n"; --$curLevel; } // add the line text. $return .= $val[2]; } // the last char of the matched pattern must be \n but we don't // want this to be inside the tokens $return = substr($return, 0, -1); // the last line may have been indented. go through the stack // and create end-tokens until the stack is empty. //$return .= "\n";
while ($curLevel > 0) { $return .= $this->wiki->addToken( $this->rule, array ( 'type' => 'end', 'level' => $curLevel ) ); --$curLevel; } // put back the trailing \n $return .= "\n";
// we're done! send back the replacement text. return $return; } } ?>
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