if (last_state == LexState.EXPR_FNAME) {
yaccValue = new Token(tokenBuffer.toString(), Tokens.tGVAR, getPosition());
return Tokens.tGVAR;
}
yaccValue = new NthRefNode(getPosition(), Integer.parseInt(tokenBuffer.substring(1)));
return Tokens.tNTH_REF;
case '0':
lex_state = LexState.EXPR_END;
return identifierToken(last_state, Tokens.tGVAR, ("$" + (char) c).intern());