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Re: Re: A complex recursive regex,help

by OM_Zen (Scribe)
on Feb 06, 2003 at 01:00 UTC ( #233011=note: print w/ replies, xml ) Need Help??

in reply to Re: A complex recursive regex,help
in thread A complex recursive regex,help

Hi Tachyon ,

my $a = "x|xx|xx|xxxx|xx|xxx|xx|xx|x"; $a =~ s/(?<=\|)xx(?=\|)/x x/g; print "[$a]\n";

This is the backward and forward assertions that I needed ,man , I have to learn more on this ,man THANKS A BUNCH Tachyonfor the help
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Re: Re: Re: A complex recursive regex,help
by tachyon (Chancellor) on Feb 06, 2003 at 01:07 UTC

    Glad to help. The only bummer is that you cna't have variable width lookbacks (positive or negative) like (?<=x*) or (?<!x*) You can have variable width look forward assertions though (?=x*) or (?!x*) ar OK.....




      Hi Tachyon ,

      The variable width lookup stuff , I realise that after your code and the limitations too, THANKS A BUNCH man

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