From: "Wolfgang Nádasi-Donner" <ed.odanow@...>
Date: 2007-10-31T06:08:18+09:00
Subject: Re: regular expressions in utf8?

Hadmut Danisch schrieb:
> can utf8 characters be used in [] in regular expressions?

It should work, and a test shows, that it works. I've used an utf-8 encoded file 
  on Windows for the program, and prepared "out.txt" as utf-8 encoded.

 >>>>> Program >>>>>
s = "hallo ������x������x������x������x���������"
puts s.encoding
puts s.length
puts s.bytesize
p s.scan(/[�����������]{2}/)
 >>>>> Protocol >>>>>
C:\Dokumente und Einstellungen\wolfgang\Desktop>ruby19 -v
ruby 1.9.0 (2007-10-29 patchlevel 0) [i386-mingw32]

C:\Dokumente und Einstellungen\wolfgang\Desktop>ruby19 uniscan.rb
<Encoding:UTF-8>
25
43
["����������", "����������", "������������", "����������", "������������"]

C:\Dokumente und Einstellungen\wolfgang\Desktop>ruby19 uniscan.rb >> out.txt

C:\Dokumente und Einstellungen\wolfgang\Desktop>
 >>>>> out.txt >>>>>
<Encoding:UTF-8>
25
43
["����", "����", "����", "����", "������"]
 >>>>> End of Test >>>>>

It does exactly what expected.

Wolfgang N��dasi-Donner