On 07/30/2010 04:45 PM, Reuben Thomas wrote: > On 30 July 2010 23:33, Eric Blake <ebl...@redhat.com> wrote: >>> and `no_sub' can't be set (because re_compile >>> always overwrites it, as it does newline_anchor). >> >> Did you compile a pattern with grouping ()? I'm not sure, but the >> behavior on no_sub may be conditional on whether there are any >> sub-fields to return in the first place. > > The code in re_compile_pattern says: > > /* And GNU code determines whether or not to get register information > by passing null for the REGS argument to re_match, etc., not by > setting no_sub, unless RE_NO_SUB is set. */ > bufp->no_sub = !!(re_syntax_options & RE_NO_SUB); > > It doesn't seem to be conditional on grouping.
Aha. The answer, then, is that you used to be able to supply no_sub prior to compilation; but nowadays you have the flag RE_NO_SUB to do the job instead. So I agree with documenting that no_sub is private (by not listing it as public). -- Eric Blake ebl...@redhat.com +1-801-349-2682 Libvirt virtualization library http://libvirt.org
signature.asc
Description: OpenPGP digital signature
