in reply to RE: Re: removing duplicate letters
in thread removing duplicate letters

If we're going to be pedantic, \w matches nonletters as well. Use a character class with the appropriate definition of "letters".

s/([a-zA-Z])\1/$1/g;

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RE: RE: RE: Re: removing duplicate letters
by mdillon (Priest) on Jun 19, 2000 at 05:39 UTC

    if you want to talk about pedantic, your letters may not be the letters everyone else is using, so to take the locale into effect, you could do something like the following:

    s/([^\W\d_])\1/$1/g
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