What exactly does this ($2 eq '-' && $2) do? Must it be in parenthesis?
-----Original Message----- From: John W. Krahn [mailto:[EMAIL PROTECTED]] Sent: Tuesday, March 12, 2002 6:40 PM To: [EMAIL PROTECTED] Subject: Re: backreference question M Z wrote: > > Hello Hello, > I was wondering if someone could point me in the right > direction for the following regex. > > s/(.{1,100}(?: |(\-))/$1$2\n/g; > > Please help on the second (?: |\-) > I am trying to match either a single space ' ' > or a - after 100 other characters and I want to save > the - but not the ' ' > thereby $2 being undefined if ' ' is found after 100. > > I'm ok with it being undefined but I'm not sure if the > above regex is valid, in fact I don't think it works > the way I want but needed to write it like that to > express what I wanted done s/(.{1,100})( |-)/$1 . ($2 eq '-' && $2) . "\n"/eg; John -- use Perl; program fulfillment -- 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]
