Re: [gentoo-dev] evar_push/pop helpers

[Mike Frysinger]

On Sunday 02 June 2013 04:39:32 Michał Górny wrote:
> Dnia 2013-06-02, o godz. 03:29:33 Mike Frysinger napisał(a):
> > On Sunday 02 June 2013 03:16:53 Michał Górny wrote:
> > > Dnia 2013-06-02, o godz. 03:09:31 Mike Frysinger napisał(a):
> > > > On Sunday 02 June 2013 02:51:34 Michał Górny wrote:
> > > > > Dnia 2013-06-01, o godz. 23:03:20 Mike Frysinger napisał(a):
> > > > > > simple set of helpers to save/restore a variable in a limited
> > > > > > section of code
> > > > > >
> > > > > > you can see an example of it in action at the end of the file
> > > > > > where i need to tweak epatch (and no, doing `LC_COLLATE=C set --
> > > > > > ....` does not work).
> > > > >
> > > > > Why the ugly hackery instead of proper 'local' scope?
> > > >
> > > > there's no way to undo the local thus it affects the rest of the
> > > > func. this makes sure the change is actually localized to where it
> > > > is needed.
> > >
> > > By use of global variables and a bunch of additional code and evals.
> >
> > the implementation details of estack_* doesn't matter
>
> It's not beautiful language with proper local scopes, so it *does*
> matter.

then go ahead and propose something different.  otherwise you're pointlessly 
twisting in the wind.

> > > Also, do you really want the collation to be changed only in this one
> > > place? This looks weird to me.
> >
> > yes, i only want to force it here, because it's the only place where
> > collation matters in the func currently.
>
> So, effectively, changing it once in the beginning of the function
> would be simpler and wouldn't cost anything.

most likely, *today*, yes.  in the future, who knows.  but since this is the 
only place in the func where we need to force a specific sorting, it makes 
sense to localize the change to that.

i snipped the rest of your e-mail because it wasn't worth responding to
-mike