busybox/shell/ash_test/ash-misc/unicode1.tests

LANG=en_US.UTF-8

# A combining character U+300
a=`printf "\xcc\x80"`
# Should print 1
echo ${#a}

# A Japanese katakana character U+30a3
a=`printf "\xe3\x82\xa3"`
# Should print 1
echo ${#a}

echo Ok