Re: How can I use regex to copy each word of a string into a hash?

Keep in mind that split will generally be a more efficient solution, whenever it is possible.

When's the last time you used duct tape on a duct? --Larry Wall

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Re: Re: How can I use regex to copy each word of a string into a hash? by cei (Monk) on Jan 16, 2001 at 23:45 UTC
True, but if I'm trying to index english text, the oddities of punctuation may make a split impractical. Unless you've got a suggestion on an iterative split?	[reply]
If you just want words... by tedv (Pilgrim) on Jan 17, 2001 at 01:37 UTC
If you just want words, why bother with punctuation at all? Just do a massive `s/\W+/ /g` on the string beforehand and you'll get a big list of words, separated by spaces. I suppose those damn apostrophies will cause you pain, and you want "it's" to differ from "its". It's unclear whether or not capitalization matters-- is "BASIC" a different word from "basic"? What about "Smith" versus "smith"? Anyway, I'd probably write something like this: `local $/ = undef; $_ = <MY_FILE>; my %hash = (); $hash{$_}++ foreach split /[^\w']+/; # Change $_ to lc if case matters` [download] -Ted	[reply] [d/l] [select]