On Thu, Jul 16, 2015 at 12:07 PM, Luis R. Rodriguez <mcgrof@xxxxxxxxxxxxxxxx> wrote: > On Fri, Jun 12, 2015 at 11:52 AM, Luis R. Rodriguez > <mcgrof@xxxxxxxxxxxxxxxx> wrote: >> OK wells I'm curious about more research / effort when trying to >> evaluate a diff with two seprate but adjoining preprocessor directives >> and if anyone has implemented an optimizaiton option to let the diff >> generator join them. >> >> For example, to let it infer that: >> >> --- a/test.c >> +++ b/test.c >> @@ -10,8 +10,6 @@ int main(int argc, char *argv[]) >> >> #ifdef FOO >> a = 4; >> -#endif /* FOO */ >> -#ifdef FOO >> a = 5; >> #endif /* FOO */ >> >> is possible. > > Anyone familiar if any tool exists today that would optimize this? Is > anyone working on it? Would git be a good place for such a thing? I'd > consider it as an option to optimize a diff. This for example is > extremely useful for us working with Coccinelle where we have a tool > writing code for us, while such an optimization might be useful to > Coccinelle it would seem like a rather generic feature, its just not > clear to me where to give such a tool a proper home. > > Luis I do not understand exactly what would be optimized in this case? In any regards, that's not a diff transformation, that is a code transformation, and I would suggest starting with Coccinelle and seeing if you can get that to do what you want. http://coccinelle.lip6.fr/ Regards, Jake -- To unsubscribe from this list: send the line "unsubscribe backports" in
