Re: [PATCH] Make tests expect [ \t]+ pattern instead of \t for "info reg" command

[Joel Brobecker <brobecker@adacore.com>]

> >> gdb/testsuite/ChangeLog:
> >>
> >>       * gdb.arch/powerpc-d128-regs.exp: Replace expected "\[\t\]*" from
> >>       "info reg" with "\[ \t\]*".
> >>       * gdb.arch/altivec-regs.exp: Replace expected "\t" from "info reg" with
> >>       "\[ \t\]+".
> >>       * gdb.arch/s390-multiarch.exp: Ditto.
> >>       * gdb.base/pc-fp.exp: Ditto.
> >>       * gdb.reverse/i386-precsave.exp: Ditto.
> >>       * gdb.reverse/i386-reverse.exp: Ditto.
> >>       * gdb.reverse/i387-env-reverse.exp: Ditto.
> >>       * gdb.reverse/i387-stack-reverse.exp: Ditto.
> >
> > No objection on my end. I might have used \\s instead of \[ \t\],
> > but perhaps there was a reason not to; and even if not, no point
> > in redoing it all now.
> 
> \\s would also allow newlines, form feeds etc., which doesn't look
> like a good idea here.

Hmmm, true. Forgot about newlines in particular.

> >> -    "pc +${valueof_pc}\t${valueof_pc} <.*>\[\r\n\]+fp +${valueof_fp}\t${valueof_fp}\[\r\n\]+"
> >> +    "pc +${valueof_pc}\[ \t\]+${valueof_pc} <.*>\[\r\n\]+fp +${valueof_fp}\[ \t\]+${valueof_fp}\[\r\n\]+"
> >
> > This change looks like it's doing more than just allowing spaces
> > on top of tabs...
> 
> Well it allows _multiple_ spaces/tabs instead of exactly one tab —
> exactly what we need to be compatible with space-alignment. In other
> respects I don't see what else it does.

My mistake. I was seeing 2 new lines, because one of the '+' lined up
exactly at the start of the next line when wraparound gets involved.
Upon re-examination, the change looks fine indeed.

-- 
Joel