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<?php
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class Text_Wiki_Render_Xhtml_Wikilink extends Text_Wiki_Render {
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var $conf = array(
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'pages' => array(), // set to null or false to turn off page checks
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'view_url' => 'http://example.com/index.php?page=%s',
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'new_url' => 'http://example.com/new.php?page=%s',
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'new_text' => '?',
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'new_text_pos' => 'after', // 'before', 'after', or null/false
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'css' => null,
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'css_new' => null
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);
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/**
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*
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* Renders a token into XHTML.
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*
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* @access public
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*
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* @param array $options The "options" portion of the token (second
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* element).
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*
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* @return string The text rendered from the token options.
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*
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*/
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function token($options)
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{
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// make nice variable names (page, anchor, text)
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extract($options);
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// are we checking page existence?
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$list =& $this->getConf('pages');
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if (is_array($list)) {
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// yes, check against the page list
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$exists = in_array($page, $list);
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} else {
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// no, assume it exists
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$exists = true;
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}
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// convert *after* checking against page names so as not to mess
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// up what the user typed and what we're checking.
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$page = htmlspecialchars($page);
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$anchor = htmlspecialchars($anchor);
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$text = htmlspecialchars($text);
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// does the page exist?
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if ($exists) {
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// PAGE EXISTS.
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// yes, link to the page view, but we have to build
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// the HREF. we support both the old form where
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// the page always comes at the end, and the new
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// form that uses %s for sprintf()
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$href = $this->getConf('view_url');
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if (strpos($href, '%s') === false) {
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// use the old form (page-at-end)
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$href = $href . $page . $anchor;
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} else {
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// use the new form (sprintf format string)
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$href = sprintf($href, $page . $anchor);
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}
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// get the CSS class and generate output
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$css = $this->formatConf(' class="%s"', 'css');
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$output = "<a$css href=\"$href\">$text</a>";
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} else {
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// PAGE DOES NOT EXIST.
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// link to a create-page url, but only if new_url is set
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$href = $this->getConf('new_url', null);
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// set the proper HREF
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if (! $href || trim($href) == '') {
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// no useful href, return the text as it is
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$output = $text;
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} else {
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// yes, link to the new-page href, but we have to build
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// it. we support both the old form where
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// the page always comes at the end, and the new
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// form that uses sprintf()
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if (strpos($href, '%s') === false) {
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// use the old form
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$href = $href . $page;
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} else {
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// use the new form
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$href = sprintf($href, $page);
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}
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}
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// get the appropriate CSS class and new-link text
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$css = $this->formatConf(' class="%s"', 'css');
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$new = $this->getConf('new_text');
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// what kind of linking are we doing?
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$pos = $this->getConf('new_text_pos');
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if (! $pos || ! $new) {
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// no position (or no new_text), use css only on the page name
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$output = "<a$css href=\"$href\">$page</a>";
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} elseif ($pos == 'before') {
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// use the new_text BEFORE the page name
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$output = "<a$css href=\"$href\">$new</a>$text";
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} else {
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// default, use the new_text link AFTER the page name
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$output = "$text<a$css href=\"$href\">$new</a>";
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}
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}
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return $output;
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}
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}
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?>
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