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Re: Re: Re: Golf: Arbitrary Alphabetical Sorting

by merlyn (Sage)
on May 09, 2001 at 20:07 UTC ( #79141=note: print w/ replies, xml ) Need Help??

in reply to Re: Re: Golf: Arbitrary Alphabetical Sorting
in thread Golf: Arbitrary Alphabetical Sorting

Well, if it's a single "character", tr likes it. What's the problem? About the only thing that's messy is the use of a slash and dash, and I could probably hork that somehow by always mapping to an octal-ish escape.

I've reread the question three times now, and I don't see how you are defining "character" in any way other than something that tr can wrangle. If so, what's the structure of a "word" then? It's no longer a string, which would be a sequence of "characters" that tr can handle!

-- Randal L. Schwartz, Perl hacker

Comment on Re: Re: Re: Golf: Arbitrary Alphabetical Sorting
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Re: Re: Re: Re: Golf: Arbitrary Alphabetical Sorting
by premchai21 (Curate) on May 09, 2001 at 20:12 UTC
    But what if the alphabet has 100 characters? Then, %m will have a through z, undef, undef, undef... as values, unless I'm missing something, which I'm pretty sure I'm not. That will lead to incorrect handling of the characters "above" 26.
Re: Re: Re: Re: Golf: Arbitrary Alphabetical Sorting
by Masem (Monsignor) on May 09, 2001 at 20:14 UTC
    In your code, you prep your translation hash %m with keys from the input alphabet, and values of a through z. What if the input alphabet was [a..z1], or [a..z0-9]? These are more than 26 characters and thus, the 27th and higher characters will have null values for their keys, and will mess up your tr-and-back transformation.
    Dr. Michael K. Neylon - || "You've left the lens cap of your mind on again, Pinky" - The Brain

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