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Postings from June 2008
>>As an alternative to m'', how about a pattern modifier /n to >>suppress interpolation? >> >>Old style: $string =~ m'Pattern with a literal $ sign'; >> >>Proposed new style: $string =~ /Pattern with a literal $ sign/n; >Personally, I have never ever used m'' and I don't see a >reason to use / n over \. m'' is used rarely but when you need it, it's most handy. The classic example is matching an RCS version string like $Id: xxx$ or $Revision: xxx$. I recognize that some people will prefer to use backslashes. >A reason against it: >You need to look at the end of the regex to know wheter or not >things get interolated. What if the regex is using the /x >modifiers and takes 10 lines? I think /x is exactly the precedent in favour. You have to look to the end of the regex to see if it has /x making comments and whitespace insignificant. This doesn't seem to be a problem in practice. >Also according to: >http://www.regular-expressions.info/refflavors.html JGSoft >and .NET are already using the n modifier for an explicit >capture The exact letter isn't important, it could be /d or whatever. (BTW, is it possible to post bug followups directly in the web interface?) -- Ed Avis <eda@waniasset.com> ______________________________________________________________________ This email has been scanned by the MessageLabs Email Security System. For more information please visit http://www.messagelabs.com/email ______________________________________________________________________Thread Next