private function processTag($tag)
{
//Try to find the tag name
preg_match('/(\\S*)(?:\\s*(.*|))$/ADs', $tag, $parts);
list(, $tagName, $expression) = $parts;
//If the tag name is unknown, try to use the fallback
if (isset(self::$closingTags[$tagName])) {
$tagName = self::$closingTags[$tagName];
} elseif (!self::$environment->hasTag($tagName)) {
$tagName = self::$fallbackTagName;
$expression = $tag;
}
$this->pushToken(Token::TAG_START, $tagName);
self::$expressionTokenizer->setLine($this->line);
$stream = self::$expressionTokenizer->tokenize($expression);
while (!$stream->next()->test(Token::EOF)) {
$this->tokenBuffer[] = $stream->current();
}
$this->line = $stream->current()->getLine();
$this->pushToken(Token::TAG_END, $tagName);
}
