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- <?php
-
- /**
- *
- * Parses for wiki freelink text.
- *
- * @category Text
- *
- * @package Text_Wiki
- *
- * @author Paul M. Jones <pmjones@php.net>
- *
- * @license LGPL
- *
- * @version $Id: Freelink.php,v 1.8 2006/12/08 08:23:51 justinpatrin Exp $
- *
- */
-
- /**
- *
- * Parses for freelinked page links.
- *
- * This class implements a Text_Wiki_Parse to find source text marked as a
- * wiki freelink, and automatically create a link to that page.
- *
- * A freelink is any page name not conforming to the standard
- * StudlyCapsStyle for a wiki page name. For example, a page normally
- * named MyHomePage can be renamed and referred to as ((My Home Page)) --
- * note the spaces in the page name. You can also make a "nice-looking"
- * link without renaming the target page; e.g., ((MyHomePage|My Home
- * Page)). Finally, you can use named anchors on the target page:
- * ((MyHomePage|My Home Page#Section1)).
- *
- * @category Text
- *
- * @package Text_Wiki
- *
- * @author Paul M. Jones <pmjones@php.net>
- *
- */
-
- class Text_Wiki_Parse_Freelink extends Text_Wiki_Parse {
-
- var $conf = array (
- 'utf-8' => false
- );
-
- /**
- *
- * Constructor. We override the Text_Wiki_Parse constructor so we can
- * explicitly comment each part of the $regex property.
- *
- * @access public
- *
- * @param object &$obj The calling "parent" Text_Wiki object.
- *
- */
-
- function Text_Wiki_Parse_Freelink(&$obj)
- {
- parent::Text_Wiki_Parse($obj);
- if ($this->getConf('utf-8')) {
- $any = '\p{L}';
- } else {
- $any = '';
- }
- $this->regex =
- '/' . // START regex
- "\\(\\(" . // double open-parens
- "(" . // START freelink page patter
- "[-A-Za-z0-9 _+\\/.,;:!?'\"\\[\\]\\{\\}&".$any."\xc0-\xff]+" . // 1 or more of just about any character
- ")" . // END freelink page pattern
- "(" . // START display-name
- "\|" . // a pipe to start the display name
- "[-A-Za-z0-9 _+\\/.,;:!?'\"\\[\\]\\{\\}&".$any."\xc0-\xff]+" . // 1 or more of just about any character
- ")?" . // END display-name pattern 0 or 1
- "(" . // START pattern for named anchors
- "\#" . // a hash mark
- "[A-Za-z]" . // 1 alpha
- "[-A-Za-z0-9_:.]*" . // 0 or more alpha, digit, underscore
- ")?" . // END named anchors pattern 0 or 1
- "()\\)\\)" . // double close-parens
- '/'.($this->getConf('utf-8') ? 'u' : ''); // END regex
- }
-
-
- /**
- *
- * Generates a replacement for the matched text. Token options are:
- *
- * 'page' => the wiki page name (e.g., HomePage).
- *
- * 'text' => alternative text to be displayed in place of the wiki
- * page name.
- *
- * 'anchor' => a named anchor on the target wiki page
- *
- * @access public
- *
- * @param array &$matches The array of matches from parse().
- *
- * @return A delimited token to be used as a placeholder in
- * the source text, plus any text priot to the match.
- *
- */
-
- function process(&$matches)
- {
- // use nice variable names
- $page = $matches[1];
- $text = $matches[2];
- $anchor = $matches[3];
-
- // is the page given a new text appearance?
- if (trim($text) == '') {
- // no
- $text = $page;
- } else {
- // yes, strip the leading | character
- $text = substr($text, 1);
- }
-
- // set the options
- $options = array(
- 'page' => $page,
- 'text' => $text,
- 'anchor' => $anchor
- );
-
- // return a token placeholder
- return $this->wiki->addToken($this->rule, $options);
- }
- }
- ?>
-