Hi John,
> Le 28 févr. 2019 à 12:56, John P. Hartmann <jphartm...@gmail.com> a écrit :
>
> This warning is introduced between 3.0.2 and 3.0.4 as far as I can tell.
A little more context would be most useful.
$ cat t.y
%%
exp: { $$ = 42 }
$ LC_ALL=C /opt/local/bin/bison -Wall t.y
t.y:2.6-16: warning: empty rule without %empty [-Wempty-rule]
exp: { $$ = 42 }
^~~~~~~~~~~
$ LC_ALL=C /opt/local/bin/bison --version
bison (GNU Bison) 3.3.2
Written by Robert Corbett and Richard Stallman.
Copyright (C) 2019 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
What exactly do you mean?
> Is there a way to stop bison adding gratuitous stuff to the actions other
> than $ and @ processing?
Again, precision won't hurt. Most of the messages are controlled by -W, and
-Wnone usually leaves only the errors. What do you mean exactly?
> Do remember that we are a band of merry men who write IBM System/360
> assembler in the actions.
Sorry, I didn't "remember". Could you give us some more details about this?
I'm curious to see what your files look like (at least a snippet).
> We still bemoan the loss of the tables only option, but I guess there is
> nothing doing about that.
Wow, thanks for enriching my vocabulary :)
The option for tables only must be gone for decades now, no?
You can write your own skeletons to get the tables only.
Cheers!
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