POSIX [1] specifies that the recognition of characters in 'tr' depends on
the environment variables LANG, etc.
But trying to replace a multibyte character by another character does not
work:
$ echo $LANG
de_DE.UTF-8
$ enspace=`printf '\u2002'`
$ echo -n "X${enspace}Y" | tr "${enspace}" ' ' | od -t x1
0000000 58 20 20 20 59
0000005
Expected output would be:
$ echo -n "X${enspace}Y" | tr "${enspace}" ' ' | od -t x1
0000000 58 20 59
0000003
With 'sed' it works:
$ echo -n "X${enspace}Y" | sed -e "s/${enspace}/ /g" | od -t x1
0000000 58 20 59
0000003
Bruno
[1] http://pubs.opengroup.org/onlinepubs/9699919799/utilities/tr.html
