\d less efficient than [0-9]

Re:\d less efficient than [0-9] by xonea on Sunday May 19, 2013 @06:19PM (#5734641)

You have to tell perl to expect utf8 from stdin (switch -C).

  $ echo '੧' | perl -C -pe 'print "yes: " if m/\d/'
  and
  $ perl -e 'use utf8; print "yes\n" if "੧" =~ m/\d/;'

both work :)

[ Parent | on HN ]

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

[ Parent | on HN ]