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Re: How do I truncate a string while preserving words?

by Tomte (Priest)
on May 11, 2007 at 08:03 UTC ( #614841=note: print w/ replies, xml ) Need Help??


in reply to How do I truncate a string while preserving words?

Try

$string =~ s/^(.{0,$maxlength})\b.*$/$1.../s;
that should work as expected (at least as far as the presented code goes...).

Edit: explanation: you can ommit the upper bound, but not the lower bound, as you did. From perlre:

{n}? Match exactly n times {n,}? Match at least n times {n,m}? Match at least n but not more than m times
and you have to match the rest of the input (.*$) for it to be replaced too - otherwise you would simply insert the ellipsis (...) without truncating the input.

regards,
tomte


An intellectual is someone whose mind watches itself.
-- Albert Camus


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Re^2: How do I truncate a string while preserving words?
by Cap'n Steve (Friar) on May 11, 2007 at 08:22 UTC
    Darn it, I swear I remember being able to omit the minimum number of matches. I wonder what it was doing with my regular expression since it didn't issue a warning. Thanks for pointing out the other error, too, I hadn't even thought about that yet.

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