public final void mXDIGIT() throws RecognitionException {
        try {
            // back-end/koopa/trees/antlr/filter/generator/ANTLRv3.g:509:8: ( '0' .. '9' | 'a' .. 'f' | 'A' .. 'F' )
            // back-end/koopa/trees/antlr/filter/generator/ANTLRv3.g:
            {
            if ( (input.LA(1)>='0' && input.LA(1)<='9')||(input.LA(1)>='A' && input.LA(1)<='F')||(input.LA(1)>='a' && input.LA(1)<='f') ) {
                input.consume();

            }
            else {
                MismatchedSetException mse = new MismatchedSetException(null,input);
                recover(mse);
                throw mse;}


            }

        }
        finally {
        }
    }