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<?php
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// $Id: Deflist.php,v 1.1 2005-01-20 19:43:20 jpm Exp $
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/**
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*
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* This class implements a Text_Wiki_Parse to find source text marked as a
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* definition list. In short, if a line starts with ':' then it is a
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* definition list item; another ':' on the same lines indicates the end
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* of the definition term and the beginning of the definition narrative.
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* The list items must be on sequential lines (no blank lines between
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* them) -- a blank line indicates the beginning of a new list.
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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_Parse_Deflist extends Text_Wiki_Parse {
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/**
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*
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* The regular expression used to parse the source text and find
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* matches conforming to this rule. Used by the parse() method.
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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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* @see parse()
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*
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*/
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var $regex = '/\n((: ).*\n)(?!(: |\n))/Us';
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/**
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*
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* Generates a replacement for the matched text. Token options are:
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*
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* 'type' =>
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* 'list_start' : the start of a definition list
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* 'list_end' : the end of a definition list
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* 'term_start' : the start of a definition term
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* 'term_end' : the end of a definition term
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* 'narr_start' : the start of definition narrative
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* 'narr_end' : the end of definition narrative
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* 'unknown' : unknown type of definition portion
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*
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* @access public
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*
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* @param array &$matches The array of matches from parse().
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*
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* @return A series of text and delimited tokens marking the different
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* list text and list elements.
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*
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*/
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function process(&$matches)
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{
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// the replacement text we will return to parse()
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$return = '';
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// the list of post-processing matches
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$list = array();
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// start the deflist
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$options = array('type' => 'list_start');
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$return .= $this->wiki->addToken($this->rule, $options);
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// $matches[1] is the text matched as a list set by parse();
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// create an array called $list that contains a new set of
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// matches for the various definition-list elements.
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preg_match_all(
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'/^(: )(.*)?( : )(.*)?$/Ums',
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$matches[1],
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$list,
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PREG_SET_ORDER
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);
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// add each term and narrative
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foreach ($list as $key => $val) {
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$return .= (
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$this->wiki->addToken($this->rule, array('type' => 'term_start')) .
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trim($val[2]) .
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$this->wiki->addToken($this->rule, array('type' => 'term_end')) .
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$this->wiki->addToken($this->rule, array('type' => 'narr_start')) .
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trim($val[4]) .
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$this->wiki->addToken($this->rule, array('type' => 'narr_end'))
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);
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}
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// end the deflist
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$options = array('type' => 'list_end');
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$return .= $this->wiki->addToken($this->rule, $options);
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// done!
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return "\n" . $return . "\n\n";
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}
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}
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?>
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