private object Filter(object instance, PhpStack /*!*/ stack)
{
StringBuilder result = new StringBuilder();
Debug.Assert(stack.ArgCount >= 1, "Called by output buffering, so should be ok");
string data = PhpVariable.AsString(stack.PeekValueUnchecked(1));
stack.RemoveFrame();
// parse the text
if (parser == null)
{
parser = new TagsUrlRewriter(this);
}
return(parser.ParseHtml(parserState, data));
}
