This bit of code will do the job:

$string =~ s/(.)\1/$1/g

Alternatively, if you want to ignore case when comparing, you could use:

$string =~ s/(.)\1/$1/gi

And finally, if you wanted to trim any number of duplicates down to a single letter, this would work:

$string =~ s/(.)\1+/$1/gi

In reply to Re: Remove repeated characters from a string by knew
in thread Remove repeated characters from a string by Anonymous Monk

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