Re: Re: Quick question about pattern matching uppercase letters

Better is s|\b([A-Z]+)\b|<i>$1</i>|gm;. Don't use backreferences if you don't have to. They're difficult to debug when they have an error. ~~Plus, you'll need the /m modifier to match across multiple lines.~~

Update: As pointed out to me, /m isn't needed here. This is a case of learning a rule early and never learning the reasons behind the rule. (/m is for "multiple lines")

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Re: Re: Re: Quick question about pattern matching uppercase letters by Anomynous Monk (Scribe) on Apr 27, 2004 at 17:06 UTC
//m changes the meaning of ^ and $ and there aren't any of those there, so it isn't needed. //m doesn't do anything else. And using \1 on the right side of a subst isn't actually a backreference and doesn't make anything harder to debug, it's just deprecated syntax. The use of \1 is a sign that the poster forgot to enable warnings, though.	[reply]