"HandleTags");
/* Can be overridden in 'local/conf.php' to provide a different title. */
$tags_title_prefix="Sites that are tagged with: ";
$tags_prefix="Tags";
/* If not 0 this value declares the maximum allowed font size within the tag cloud. */
$tags_size_limit=0;
/* All tags currently declared on this page. */
$tags=array();
Markup("tags", "directives", '/\\(:tags\\s(.*?):\\)/ei', "Tagger('$1',false)");
Markup("tags-hide", "directives", '/\\(:tags-hide\\s(.*?):\\)/ei', "Tagger('$1',true)");
Markup("listtags", "directives", '/\\(:listtags(.*?):\\)/ei', "ListTags('$1')");
Markup("listgrouptags", "directives", '/\\(:listgrouptags\\s(.*?):\\)/ei', "ListGroupTags('$1')");
function Tagger($i,$hide) {
global $action;
global $tags;
$currenttags = explode(",",$i);
$tags = array_merge($tags, $currenttags);
if($hide)
{
return "";
} else
{
$output = "";
}
}
function HandleTags()
{
global $tags_prefix;
global $tags_title_prefix;
$taggedPages;
$tag = $_GET["tag"];
$pagelist = ListPages();
foreach ($pagelist as $pagename)
{
$page=ReadPage($pagename, READPAGE_CURRENT);
if (preg_match('/\\(:tags\\s.*?\b'.$tag.'\b.*?:\\)/i',$page['text']) ||
preg_match('/\\(:tags-hide\\s.*?\b'.$tag.'\b.*?:\\)/i',$page['text']))
{
$name=explode(".",$page['name']);
$taggedPages=$taggedPages.'*[['.$name[1].'->'.$pagename.']] ';
$taggedPages=$taggedPages." \n";
}
}
$text = $tags_title_prefix." @@".$tag."@@ \n\n";
$page = array("text"=>$text.$taggedPages);
$sitename=$tags_prefix.".".ucfirst(str_replace(" ","",$tag));
WritePage($sitename,$page);
Redirect($sitename);
}
function __LoadTags($text)
{
$count1 = preg_match('/\\(:tags\\s(.*?):\\)/ei',$text, $matches1);
$count2 = preg_match('/\\(:tags-hide\\s(.*?):\\)/ei',$text, $matches2);
$result = array();
if($count1 > 0)
{
$result = array_merge($result, explode(",", substr($matches1[0], 6, -2)));
}
if($count2 > 0)
{
$result = array_merge($result, explode(",", substr($matches2[0], 11, -2)));
}
return $result;
}
function __GenerateTagList($pagelist, $showselected)
{
global $tags;
global $tags_size_limit;
$tagcount=array();
$tagselection=array();
$output;
foreach ($pagelist as $pagename)
{
$page=ReadPage($pagename, READPAGE_CURRENT);
$matched_tags = __LoadTags($page['text']);
foreach($matched_tags as $value)
{
$key=ucfirst(trim($value));
$tagcount[$key]+=1;
$tagselection[$key] = in_array($value, $tags);
}
}
ksort($tagcount);
foreach ($tagcount as $tag=>$value)
{
$size = $value + 10;
if ($tags_size_limit > 0)
{
if ($size > $tags_size_limit)
{
$size = $tags_size_limit;
}
}
if ($tagselection[$tag] && $showselected)
{
$output=$output.'
'.$tag.' ';
}
else
{
$output=$output.'
'.$tag.' ';
}
}
return $output;
}
function ListTags($i)
{
$showselected = preg_match('/\\s\bshowselected\b/ei',$i) > 0;
$pagelist = ListPages();
return __GenerateTagList($pagelist, $showselected);
}
function ListGroupTags($i)
{
global $tags;
$showselected = false;
$parameters = explode(" ", $i);
foreach ($parameters as $parameter)
{
$parameter = trim($parameter);
if ($parameter === "showselected")
{
$showselected = true;
}
else
{
$group = $parameter;
}
}
$pagelist = ListPages("/^$group.*/");
return __GenerateTagList($pagelist, $showselected);
}