Hi all,
I already checked the archives for this issue and it seems I am not the
first to ask:
http://common-lisp.net/pipermail/regex-coach/2005-April/000282.html
The response from Edi at that time:
"Standalone" regular expressions ("atomic grouping") as in (?>x+)
are
supported, possesive quantifiers as in x++ aren't because they
aren't
in Perl and CL-PPCRE tries to be compatible with Perl.
That was in 2005. Indeed, using an older Perl:
% perl -e "print 'no' if '123456' !~ /\d++6/"
Nested quantifiers in regex; marked by <-- HERE in m/\d++ <-- HERE
6/ at -e line 1.
% perl -v
This is perl, v5.8.3 built for sun4-solaris
...
However, now Perl has changed:
>perl -le "print 'no' if '123456' !~ /\d++6/"
no
>perl -v
This is perl, v5.10.0 built for MSWin32-x86-multi-thread
...
Could be a limitation of CL-PPCRE or could be that the Regex Coach only
needs updated, I'm not sure on this.
Regards
Ben Golding
