rem: eval7 (void)
add: eval7 (bool evaluate)
context: eval7 (void){  VALUE *v;#ifdef EVAL_TRACE  trace ("eval7");#endif  if (nomoreargs ())    error (2, 0, _("syntax error"));  if (nextarg ("("))    {      v = eval ();      if (!nextarg (")"))	error (2, 0, _("syntax error"));      return v;    }  if (nextarg (")"))    error (2, 0, _("syntax error"));  return str_value (*args++);}