private function walkRule(Tree $tree)
{
list($identifier, $separator, $pattern) = $tree->getChildren();
$insignificantSeparator = $this->visit($separator) === '_>' ?: false;
return new Definition($this->visit($identifier), preg_replace('/\\/(.+)\\//', '$1', $this->visit($pattern)), $insignificantSeparator);
}
private function walkToken(Tree $tree)
{
$token = $this->visit($tree->getChildren()[0]);
$token = substr($token, 1);
return new TokenReference($token);
}
