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Re^2: Parse messy string into neat data structure

by Cody Fendant (Friar)
on Aug 09, 2010 at 01:57 UTC ( #853712=note: print w/replies, xml ) Need Help??

in reply to Re: Parse messy string into neat data structure
in thread Parse messy string into neat data structure

You're guessing wrong, or if I am parsing Wiki code I'm at the end of a long chain which starts with Wiki code and can't help it anyway.

I'm well aware how ugly the input text is, but believe me, I can't fix that.

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Re^3: Parse messy string into neat data structure
by aquarium (Curate) on Aug 09, 2010 at 03:22 UTC
    So shoot me for asking.
    You're right about your code being ugly it's not a good idea to number variables from the split. Either an array, a hash, or even a linked list result could be more appropriate, depending on what you want your "neat data structure" loaded from non-reliable input to do.
    the hardest line to type correctly is: stty erase ^H

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[ovedpo15]: another question about regex. if I have a string like this: "a/b/,c/d/e,5" I would like to remove the string after the last comma so the output will be "a/b/,c/d/e" how to do so?
[Corion]: ovedpo15: You could split on comma, and then join everything together, except the last part. Or you could match and make sure that the last part has no comma, like qr!,[^,]+$!, or you could use rindex.
[ovedpo15]: But I don't know the length of the string. will it still work?
[ovedpo15]: The only thing I know is that there is a comma at the end and a value after that
[hippo]: Try it and see. Your computer won't explode.
[Corion]: length will tell you the length of a string.
[Corion]: But if you are parsing CSV, again, let me point to Text::CSV_XS, which you should use instead

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