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jgamble's scratchpad

by jgamble (Pilgrim)
on Aug 10, 2010 at 23:34 UTC ( #854170=scratchpad: print w/replies, xml ) Need Help??

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    #
    # @newlist = semijoin($expr, $itemcount, @list);
    ...
    
        return @newlist;
    }
    

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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

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