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A comment on \d less efficient than [0-9]. Parent comment

Re:\d less efficient than [0-9] by pooriaazimi on Sunday May 19, 2013 @06:24PM (#5734650)
`man perlunicode` is chockfull of utf8-related stuff (and it's looong): http://perldoc.perl.org/5.14.0/perlunicode.html
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