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go ahead... be a heretic


by root (Scribe)
on Oct 13, 1999 at 03:52 UTC ( #821=perlman: print w/replies, xml ) Need Help??


Current Perl documentation can be found at

Here is our local, out-dated (pre-5.6) version:

This section is surprisingly small because the rest of the FAQ is littered with answers involving regular expressions. For example, decoding a URL and checking whether something is a number are handled with regular expressions, but those answers are found elsewhere in this document (in the section on Data and the Networking one on networking, to be precise).

How can I hope to use regular expressions without creating illegible and unmaintainable code?
I'm having trouble matching over more than one line. What's wrong?
How can I pull out lines between two patterns that are themselves on different lines?
I put a regular expression into $/ but it didn't work. What's wrong?
How do I substitute case insensitively on the LHS, but preserving case on the RHS?
How can I make <CODE>\w</CODE> match national character sets?
[How can I match a locale-smart version of /a-zA-Z/?]
How can I quote a variable to use in a regexp?
What is <CODE>/o</CODE> really for?
How do I use a regular expression to strip C style comments from a file?
Can I use Perl regular expressions to match balanced text?
What does it mean that regexps are greedy? How can I get around it?
How do I process each word on each line?
How can I print out a word-frequency or line-frequency summary?
How can I do approximate matching?
How do I efficiently match many regular expressions at once?
Why don't word-boundary searches with <CODE>\b</CODE> work for me?
Why does using $&, $`, or $' slow my program down?
What good is <CODE>\G</CODE> in a regular expression?
Are Perl regexps DFAs or NFAs? Are they POSIX compliant?
What's wrong with using grep or map in a void context?
How can I match strings with multibyte characters?
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[marioroy]: Disciplus My wife and I went on vacation. At work, I was stuck polling SNMP from 20 million devices. It would hang at 80,000. On the mist boat, hear a voice to enable grace in the design that 10x and more performance awaits.
[Lady_Aleena]: Women need challenges too karlgoethebier. 8)
[marioroy]: s/hear/heard/
[karlgoethebier]: Discipulus: No. See https://en. wiki/Tribe_( Native_American)
[karlgoethebier]: They took Unix from some aliens
[marioroy]: Perl is so powerful that it can poll 40 metrics from 20 million devices in 40 minutes using 4 nodes only.
[karlgoethebier]: http://www. aliens.htm
[Lady_Aleena]: marioroy, I can't decide whether or not to move my RolePlaying:: Random:: modules to just Random::. I'm not as sophisticated as most here.
[marioroy]: Naming things can be difficult, sometimes more so that the actual code :)
[karlgoethebier]: Lady_Aleena: You need to jump to some conclusion

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