function Internal_FinishTag($tag_name) {
if (strlen($tag_name) <= 0)
return false;
if (isset($this->start_tags[$tag_name])
&& count($this->start_tags[$tag_name]))
$pos = array_pop($this->start_tags[$tag_name]);
else $pos = -1;
if ($pos < 0) return false;
$newpos = $this->Internal_CleanupWSByIteratingPointer(@$this->tag_rules[$tag_name]['after_tag'],
$pos+1, $this->stack);
$delta = $newpos - ($pos+1);
$output = $this->Internal_GenerateOutput($newpos);
$newend = $this->Internal_CleanupWSByIteratingPointer(@$this->tag_rules[$tag_name]['before_endtag'],
0, $output);
$output = $this->Internal_CollectTextReverse($output, count($output) - 1, $newend);
while ($delta-- > 0)
array_pop($this->stack);
$this->Internal_ComputeCurrentClass();
return $output;
}