* Short term
+** scan-code.l
+Avoid variables for format strings, as then GCC cannot check them.
+show_sub_messages should call show_sub_message.
+
** Variable names.
What should we name `variant' and `lex_symbol'?
"\"end of command\"", "error", "$undefined", "\"=\"", "\"break\"",
-** YYFAIL
-It is seems to be *really* obsolete now, shall we remove it?
-
** yychar == yyempty_
The code in yyerrlab reads: