Re: [RFA] New substitute-path commands

Joel Brobecker
2006-07-13T21:27:52Z

[moving back to GDB - summary: On gdb-patches, I was convinced by the
feedback that I received that I should spend the effort of implementing
multiple rewrite rules immediately. I have a question about that].

The interface is as follow:

(gdb) set substitute-path FROM TO
(gdb) unset substitute-path [FROM]
(gdb) show substitute-path

The "set" command will add a substitution rule.

My question is the following: When you enter a second rule, should it
take precedence over the first one you entered? More generally, should
the substitution rules entered last be used first, or the opposite?

I'm 50-50 on this:

. With first-entered/first-used, you enter the rules following the
logic "if blah, then replace with [...]; else if bloh, then replace
with [...]; else if [...], then [...]". In other words, you enter
the rules in the same order you would write a "program". It seems
pretty natural.

. With last-entered/first-used, it's possible to override previous
entries without having to delete the previous rules. Not so natural
to "program", though.

Actually, as I'm writing this, I now favor first-entered/first-used.
One can delete a rule if he wants to override it. It's marginal anyway.

What do you guys think?

Thanks,
--
Joel