Date: Tue, 23 Oct 2001 19:53:20 +0200 From: Roman Neuhauser <neuhauser@mobil.cz> To: freebsd-questions@freebsd.org Subject: Re: regex(3), re_format(7) and shortest match Message-ID: <20011023195320.B8947@roman.mobil.cz> In-Reply-To: <20011023194940.A8947@roman.mobil.cz> References: <3BD5A7F4.748285AA@verizon.net> <20011023194940.A8947@roman.mobil.cz>
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> > Date: Tue, 23 Oct 2001 10:25:08 -0700
> > From: Shill <shill@free.fr>
> > To: freebsd-questions@freebsd.org
> > Subject: regex(3), re_format(7) and shortest match
> >
> > Say I have the string:
> > "yo <a --- </a> hiphop <a +++ </a> fun"
> >
> > I want to isolate individual "<a ... </a>" subexpressions.
> >
> > The naive regex I used was: (<a.*</a>)
> >
> > Of course, that doesn't work since it returns the longest match, in my
> > case "<a --- </a> hiphop <a +++ </a>".
> >
> > I battled with bracket expressions and collating elements for three
> > hours to no avail. Can anyone tell me how to achieve the shortest match?
> >
> > i.e. the first call to regexec() would return "<a --- </a>" and the
> > second would return "<a +++ </a>".
>
> Try this: (<a[^]]</a>)
What was I thinking... (<a[^<]*</a>)
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