Re^2: regex question

$string =~ tr/A-Za-z0-9.-_//cd;

You forgot to escape the hyphen, the one you want taken literally:

$string =~ tr/A-Za-z0-9.\-_//cd;
[download]

Yours will keep everything in the range

./0123456789:;<=>?@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_
[download]

too, which is more than you wanted.

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Re^3: regex question by davido (Cardinal) on Dec 06, 2006 at 07:25 UTC
What I should have said (and intended to but didn't) is: `tr/A-Za-z0-9._-//cd;` [download] The hyphen doesn't have special meaning in that case. I even did that when I composed the character class demonstrated in my s/// example, but somehow missed it in the tr/// example. Good catch bart. :) You've got to love Perl's density huh? ;) Dave	[reply] [d/l]