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<?php
/**
*
* Parses for paragraph blocks.
*
* @category Text
*
* @package Text_Wiki
*
* @author Paul M. Jones <pmjones@php.net>
*
* @license LGPL
*
* @version $Id$
*
*/
/**
*
* Parses for paragraph blocks.
*
* This class implements a Text_Wiki rule to find sections of the source
* text that are paragraphs. A para is any line not starting with a token
* delimiter, followed by two newlines.
*
* @category Text
*
* @package Text_Wiki
*
* @author Paul M. Jones <pmjones@php.net>
*
*/
class Text_Wiki_Parse_Default_Paragraph extends Text_Wiki_Parse {
/**
*
* The regular expression used to find source text matching this
* rule.
*
* @access public
*
* @var string
*
*/
var $regex = "/^.*?\n\n/m";
var $conf = array(
"skip" => array(
"blockquote", // are we sure about this one?
"code",
"heading",
"horiz",
"deflist",
"table",
"list",
"toc"
)
);
/**
*
* Generates a token entry for the matched text. Token options are:
*
* 'start' => The starting point of the paragraph.
*
* 'end' => The ending point of the paragraph.
*
* @access public
*
* @param array &$matches The array of matches from parse().
*
* @return A delimited token number to be used as a placeholder in
* the source text.
*
*/
function process(&$matches)
{
$delim = $this->wiki->delim;
$skip = $this->getConf("skip", array());
// was anything there?
if (trim($matches[0]) == "") {
return "";
}
// does the match has tokens inside?
preg_match_all("/(?:$delim)(\d+?)(?:$delim)/", $matches[0], $delimiters, PREG_SET_ORDER);
// look each delimiter inside the match and see if it's skippable
// (if we skip, it will not be marked as a paragraph)
foreach ($delimiters as $d) {
$token_type = strtolower($this->wiki->tokens[$d[1]][0]);
if (in_array($token_type, $skip)) {
return $matches[0];
}
}
// if there is no skipable token inside the match
// add the Paragraph token and return
$start = $this->wiki->addToken(
$this->rule, array("type" => "start")
);
$end = $this->wiki->addToken(
$this->rule, array("type" => "end")
);
return $start . trim($matches[0]) . $end;
}
}
?>
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