Hi Messier, Try that:
#[1] $str="206.48.16.3/12345"; $str=~ s/\/.*//g; #[2] $str="src=206.48.16.3/12345"; $str=~ s/^src=|\/.*//g; I hope that helps. --Ahmed [EMAIL PROTECTED] | http://arbornet.org/~ahmed On Thu, 6 Dec 2001, Messier, Jean-Francois wrote: > I'm a beginner in those regular expressions and s/// operations. How > can I extract only the digits and the periods (.) from a string ? I have > something like 206.48.16.3/12345. An IP address with a port number. There > are digits on both sides of the slash, but I would like to keep only the > digits from on the left as well as the periods. More complex question: If I > have something like "src=206.48.16.3/12345", how can I do the same as bove, > but also removing the "src=" at the beginning ? > > Thanks :-) > > Jean-Francois Messier > Ottawa, CANADA > > -----Original Message----- > From: Jeff 'japhy' Pinyan [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, December 05, 2001 11:18 PM > To: Daniel Falkenberg > Cc: [EMAIL PROTECTED] > Subject: Re: Confirmation... > > > On Dec 6, Daniel Falkenberg said: > > >$string =~ s/[^a-zA-Z0-9]//g; > > > >I take it only allows $string to eq anthing in the charcter class of > >a-z, A-Z and 0-9. I also take it that anything other than that will be > >stripped out? Any other comments? > > Right. I'd write it as > > s/[^a-zA-Z0-9]+//g; > > for "efficiency". Or perhaps as > > tr/a-zA-Z0-9//cd; > > for "clarity". Your ideas of "efficiency" and "clarity" may differ. > > -- > Jeff "japhy" Pinyan [EMAIL PROTECTED] http://www.pobox.com/~japhy/ > RPI Acacia brother #734 http://www.perlmonks.org/ http://www.cpan.org/ > ** Look for "Regular Expressions in Perl" published by Manning, in 2002 ** > <stu> what does y/// stand for? <tenderpuss> why, yansliterate of course. > > > -- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
