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<?php
/**
* Tag Plugin: displays list of keywords with links to categories this page
* belongs to. The links are marked as tags for Technorati and other services
* using tagging.
*
* Usage: {{tag>category tags space separated}}
*
* @license GPL 2 (http://www.gnu.org/licenses/gpl.html)
* @author Matthias Schulte <dokuwiki@lupo49.de>
*/
/** Count syntax, allows to list tag counts */
class syntax_plugin_tag_count extends DokuWiki_Syntax_Plugin {
/**
* @return string Syntax type
*/
function getType() { return 'substition'; }
/**
* @return int Sort order
*/
function getSort() { return 305; }
/**
* @return string Paragraph type
*/
function getPType() { return 'block';}
/**
* @param string $mode Parser mode
*/
function connectTo($mode) {
$this->Lexer->addSpecialPattern('\{\{count>.*?\}\}', $mode, 'plugin_tag_count');
}
/**
* Handle matches of the count syntax
*
* @param string $match The match of the syntax
* @param int $state The state of the handler
* @param int $pos The position in the document
* @param Doku_Handler $handler The handler
* @return array Data for the renderer
*/
function handle($match, $state, $pos, Doku_Handler $handler) {
$dump = trim(substr($match, 8, -2)); // get given tags
$dump = explode('&', $dump); // split to tags and allowed namespaces
$tags = $dump[0];
$allowedNamespaces = explode(' ', $dump[1]); // split given namespaces into an array
if($allowedNamespaces && $allowedNamespaces[0] == '') {
unset($allowedNamespaces[0]); // When exists, remove leading space after the delimiter
$allowedNamespaces = array_values($allowedNamespaces);
}
if (empty($allowedNamespaces)) $allowedNamespaces = null;
if (!$tags) $tags = '+';
/** @var helper_plugin_tag $my */
if(!($my = $this->loadHelper('tag'))) return false;
return array($my->_parseTagList($tags), $allowedNamespaces);
}
/**
* Render xhtml output or metadata
*
* @param string $mode Renderer mode (supported modes: xhtml and metadata)
* @param Doku_Renderer $renderer The renderer
* @param array $data The data from the handler function
* @return bool If rendering was successful.
*/
function render($mode, Doku_Renderer $renderer, $data) {
if ($data == false) return false;
list($tags, $allowedNamespaces) = $data;
// deactivate (renderer) cache as long as there is no proper cache handling
// implemented for the count syntax
$renderer->nocache();
if($mode == "xhtml") {
/** @var helper_plugin_tag $my */
if(!($my = $this->loadHelper('tag'))) return false;
// get tags and their occurrences
if($tags[0] == '+') {
// no tags given, list all tags for allowed namespaces
$occurrences = $my->tagOccurrences($tags, $allowedNamespaces, true);
} else {
$occurrences = $my->tagOccurrences($tags, $allowedNamespaces);
}
$class = "inline"; // valid: inline, ul, pagelist
$col = "page";
$renderer->doc .= '<table class="'.$class.'">'.DOKU_LF;
$renderer->doc .= DOKU_TAB.'<tr>'.DOKU_LF.DOKU_TAB.DOKU_TAB;
$renderer->doc .= '<th class="'.$col.'">'.$this->getLang('tag').'</th>';
$renderer->doc .= '<th class="'.$col.'">'.$this->getLang('count').'</th>';
$renderer->doc .= DOKU_LF.DOKU_TAB.'</tr>'.DOKU_LF;
if(empty($occurrences)) {
// Skip output
$renderer->doc .= DOKU_TAB.'<tr>'.DOKU_LF.DOKU_TAB.DOKU_TAB;
$renderer->doc .= DOKU_TAB.DOKU_TAB.'<td class="'.$class.'" colspan="2">'.$this->getLang('empty_output').'</td>'.DOKU_LF;
$renderer->doc .= DOKU_LF.DOKU_TAB.'</tr>'.DOKU_LF;
} else {
foreach($occurrences as $tagname => $count) {
if($count <= 0) continue; // don't display tags with zero occurrences
$renderer->doc .= DOKU_TAB.'<tr>'.DOKU_LF.DOKU_TAB.DOKU_TAB;
$renderer->doc .= DOKU_TAB.DOKU_TAB.'<td class="'.$class.'">'.$my->tagLink($tagname).'</td>'.DOKU_LF;
$renderer->doc .= DOKU_TAB.DOKU_TAB.'<td class="'.$class.'">'.$count.'</td>'.DOKU_LF;
$renderer->doc .= DOKU_LF.DOKU_TAB.'</tr>'.DOKU_LF;
}
}
$renderer->doc .= '</table>'.DOKU_LF;
}
return true;
}
}
// vim:ts=4:sw=4:et:
|
