void IElementFactory.AddScript(IGrammar grammar, string sRule, string code)
        {
            SrgsGrammar srgsGrammar = (SrgsGrammar)grammar;
            SrgsRule    srgsRule    = srgsGrammar.Rules[sRule];

            if (srgsRule != null)
            {
                srgsRule.Script += code;
            }
            else
            {
                srgsGrammar.AddScript(sRule, code);
            }
        }
        void IElementFactory.AddScript(IGrammar grammar, string script, string filename, int line)
        {
            SrgsGrammar srgsGrammar = (SrgsGrammar)grammar;

            srgsGrammar.AddScript(null, script);
        }