Re: I resolve to finally grok and use the regex option...

I routinely use g, s, and sometimes even i, e, x, c. I even know what o and m means, but I haven't find any use for them.

However, I am all confused when I write regexen in ruby, because the m option for ruby regexps is the same as the s in perl. Even worse, if you write s by habit, you don't even get a warning because it has a different meaning.

Update 2007 jan 22: since then, I've found a use for m as well.

Comment on Re: I resolve to finally grok and use the regex option...

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Re^2: I resolve to finally grok and use the regex option... by jhourcle (Prior) on Apr 24, 2005 at 01:08 UTC
You might not use them because there are other ways to get around them. For instance, with `qr//`, you don't need to ever use `m//o`. `m//m` can be useful when you're trying to read in data records, but you can also match on the line seperator with a lookahead or lookbehind assertion. (or line seperator or `\A` or `\Z`, it you might match the very beginning or very end)	[reply] [d/l] [select]
Re^2: I resolve to finally grok and use the regex option... by etcshadow (Priest) on Apr 24, 2005 at 05:20 UTC
<s>You use /c? What is it, and why can't I find anything about it in perlre?</s> Update: never mind. Resolved in the CB. For any others curious, it's in perlop, not perlre. `------------ :Wq Not an editor command: Wq` [download]	[reply] [d/l]
Re^3: I resolve to finally grok and use the regex option... by dmorelli (Scribe) on Apr 25, 2005 at 03:03 UTC
This was new to me too. I found some additional information on /c in perlretut.	[reply]
Re^3: I resolve to finally grok and use the regex option... by ikegami (Patriarch) on Apr 27, 2005 at 15:41 UTC
/c (in conjunction with /g) is great for tokenization. See Using Multiple m/\G.../gc to Tokenize for an example. There's another example in perlfaq. I've actually used all of the options listed in the poll.	[reply]


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