[bug #32337] [:alnum:] depends on locale

[anonymous]

URL:
  <http://savannah.gnu.org/bugs/?32337>

                 Summary: [:alnum:] depends on locale
                 Project: grep
            Submitted by: None
            Submitted on: Do 03 Feb 2011 12:07:11 UTC
                Category: None
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any

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Details:

In the grep man page it is written: "For  example, [[:alnum:]]
means [0-9A-Za-z], except the latter form depends upon the C
locale and the ASCII character encoding, whereas the former is
independent of locale and character set."

However, in my UTF-8 environment (LANG=de_DE.UTF-8) I get

$ echo -e "Haus\nHäuser\n" | LANG=de_DE.UTF-8 ./grep -E '^[[:alnum:]]+$'
Haus
Häuser

$ echo -e "Haus\nHäuser\n" | LANG=C ./grep -E '^[[:alnum:]]+$'
Haus

>From the man-page I expected both cases to match only against the first line.


grep-version: 2.7 (also confirmed on 2.5.3 and 2.5.4)
debian lenny





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