BBCode::Internal_ParseStartTagToken()

function Internal_ParseStartTagToken() {
$tag_params = $this->lexer->tag;
$tag_name = @$tag_params['_name'];
if (!isset($this->tag_rules[$tag_name])) {
$this->stack[] = Array(
BBCODE_STACK_TOKEN => BBCODE_TEXT,
BBCODE_STACK_TEXT => $this->FixupOutput($this->lexer->text),
BBCODE_STACK_TAG => false,
BBCODE_STACK_CLASS => $this->current_class,
);
return;
}
$tag_rule = $this->tag_rules[$tag_name];
$allow_in = is_array($tag_rule['allow_in'])
? $tag_rule['allow_in'] : Array($this->root_class);
if (!in_array($this->current_class, $allow_in)) {
if (!$this->Internal_RewindToClass($allow_in)) {
$this->stack[] = Array(
BBCODE_STACK_TOKEN => BBCODE_TEXT,
BBCODE_STACK_TEXT => $this->FixupOutput($this->lexer->text),
BBCODE_STACK_TAG => false,
BBCODE_STACK_CLASS => $this->current_class,
);
return;
}
}
$end_tag = isset($tag_rule['end_tag']) ? $tag_rule['end_tag'] : BBCODE_REQUIRED;
if ($end_tag == BBCODE_PROHIBIT) {
$this->Internal_ProcessIsolatedTag($tag_name, $tag_params, $tag_rule);
return;
}
if (!$this->DoTag(BBCODE_CHECK, $tag_name, @$tag_params['_default'], $tag_params, "")) {
$this->stack[] = Array(
BBCODE_STACK_TOKEN => BBCODE_TEXT,
BBCODE_STACK_TEXT => $this->FixupOutput($this->lexer->text),
BBCODE_STACK_TAG => false,
BBCODE_STACK_CLASS => $this->current_class,
);
return;
}
if (@$tag_rule['content'] == BBCODE_VERBATIM) {
$this->Internal_ProcessVerbatimTag($tag_name, $tag_params, $tag_rule);
return;
}
if (isset($tag_rule['class']))
$newclass = $tag_rule['class'];
else $newclass = $this->root_class;
$this->stack[] = Array(
BBCODE_STACK_TOKEN => $this->lexer->token,
BBCODE_STACK_TEXT => $this->FixupOutput($this->lexer->text),
BBCODE_STACK_TAG => $this->lexer->tag,
BBCODE_STACK_CLASS => ($this->current_class = $newclass),
);
if (!isset($this->start_tags[$tag_name]))
$this->start_tags[$tag_name] = Array(count($this->stack)-1);
else $this->start_tags[$tag_name][] = count($this->stack)-1;
}