/**
* Validate an end tag token.
* @param MUNGER_TOKEN $token
* @access private
*/
protected function _transform_as_end_tag($token)
{
$name = $token->name();
if (isset($this->_known_tags[$name])) {
if ($this->_known_tags[$name]->has_end_tag) {
$tag = array_pop($this->_open_tags);
if (isset($tag)) {
if (!$tag->token->matches($token)) {
$this->add_error('Unexpected end tag ' . $tag->token->name() . '.', $token);
/* Put the tag back on the stack, so it can be matched if the correct
* tag shows up.
*/
array_push($this->_open_tags, $tag);
}
} else {
$this->add_error('Unexpected end tag [' . $name . '] (no tags are open).', $token);
}
} else {
$this->add_error('Tag [' . $name . '] cannot have an end tag.', $token);
}
}
}
/**
* Replace a tag with its actual content.
* If the tag is known, then this uses the {@link MUNGER_REPLACER}s list. If it is unknown, it
* calls {@link _known_tag_as_text()}, which transforms non-replaced known tags.
* @param MUNGER_TOKEN $token
* @return string
* @access private
*/
protected function _tag_as_text($token)
{
$name = $token->name();
if (isset($this->_known_tags[$name])) {
if (isset($this->_replacers[$name])) {
$rep = $this->_replacers[$name];
return $rep->transform($this, $token);
}
return $this->_known_tag_as_text($token);
} else {
if (!$this->strip_unknown_tags) {
return $token->data();
}
}
return '';
}