/*
    stringlist:
        stringlist ',' _string
    |
        _string
    ;
    
    varExpr:
        enterID
        zeroSemVal
    |
        enterVarID
        '='
        expression
        {
            $$ = *p_expression(p_assign(&$1, &$3));
        }
    |
        enterVarID
        '=' '{' stringlist '}'
    ;
*/

