Try 

print "[$_]:", eval "\$string =~ tr/$_//";

[download]

Note: this may be slower than your original.

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
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In the absence of evidence, opinion is indistinguishable from prejudice.
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In reply to Re: Simple Matching by BrowserUk
in thread Simple Matching by rnroot

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