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<?php
// vim: set expandtab tabstop=4 shiftwidth=4 softtabstop=4:
/**
* BBCode: Parses for font size tag.
*
* This class implements a Text_Wiki_Rule to find source text with size
* as defined by text surrounded by [size=...] ... [/size] (nesting)
* On parsing, the text itself is left in place, but the starting and ending
* tags are replaced with tokens.
*
* PHP versions 4 and 5
*
* @category Text
* @package Text_Wiki
* @author Bertrand Gugger <bertrand@toggg.com>
* @copyright 2005 bertrand Gugger
* @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
* @version CVS: $Id: Font.php,v 1.4 2006/02/21 22:47:53 toggg Exp $
* @link http://pear.php.net/package/Text_Wiki
*/
/**
* Font rule parser class (with nesting) for BBCode. ([size=...]...[/size])
*
* @category Text
* @package Text_Wiki
* @author Bertrand Gugger <bertrand@toggg.com>
* @copyright 2005 bertrand Gugger
* @license http://www.gnu.org/copyleft/lesser.html LGPL License 2.1
* @version Release: @package_version@
* @link http://pear.php.net/package/Text_Wiki
* @see Text_Wiki_Parse::Text_Wiki_Parse()
*/
class Text_Wiki_Parse_Font extends Text_Wiki_Parse {
/**
* The regular expression used to parse the source text and find
* matches conforming to this rule. Used by the parse() method.
*
* @access public
* @var string
* @see parse()
*/
var $regex = "#\[size=(\d+)]((?:((?R))|.)*?)\[/size]#msi";
/**
* The current font nesting depth, starts by zero
*
* @access private
* @var int
*/
var $_level = 0;
/**
* Generates a replacement for the matched text. Token options are:
* - 'type' => ['start'|'end'] The starting or ending point of the sized text.
* The text itself is left in the source but may content bested blocks
* - 'level' => the level of nesting (starting 0)
* - 'size' => the size indicator
*
* @param array &$matches The array of matches from parse().
* @return string Delimited by start/end tokens to be used as
* placeholder in the source text surrounding the text to be sized.
* @access public
*/
function process(&$matches)
{
// nested block ?
if (array_key_exists(3, $matches)) {
$this->_level++;
$expsub = preg_replace_callback(
$this->regex,
array(&$this, "process"),
$matches[2]
);
$this->_level--;
} else {
$expsub = $matches[2];
}
// builds the option array
$options = array("type" => "start", "level" => $this->_level, "size" => $matches[1]);
$statok = $this->wiki->addToken($this->rule, $options);
$options["type"] = "end";
return $statok . $expsub . $this->wiki->addToken($this->rule, $options);
}
}
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