Boo.Lang.Parser.BooParserBase.identifier C# (CSharp) Method

        protected IToken identifier()
        {
            IToken value;

                value = null; _sbuilder.Length = 0;
                IToken id1 = null;
                IToken id2 = null;

            try {      // for error handling
            id1=macro_name();
            if (0==inputState.guessing)
            {

                        if (id1 != null) _sbuilder.Append(id1.getText());
                        value = id1;

            }
            {    // ( ... )*
                for (;;)
                {
                    if ((LA(1)==DOT) && (tokenSet_27_.member(LA(2))))
                    {
                        match(DOT);
                        id2=member();
                        if (0==inputState.guessing)
                        {

                                        _sbuilder.Append('.');
                                        if (id2 != null) _sbuilder.Append(id2.getText());

                        }
                    }
                    else
                    {
                        goto _loop663_breakloop;
                    }

                }
            _loop663_breakloop:				;
            }    // ( ... )*
            if (0==inputState.guessing)
            {
                if (value != null) value.setText(_sbuilder.ToString());
            }
            }
            catch (RecognitionException ex)
            {
            if (0 == inputState.guessing)
            {
                reportError(ex, "identifier");
                recover(ex,tokenSet_13_);
            }
            else
            {
                throw ex;
            }
            }
            return value;
        }