Paolo Bonzini wrote: > On 09/23/2010 09:21 AM, Jim Meyering wrote: >> This shows the bad-old behavior (grep-2.7 and earlier) >> note how [A-Z] matches lower case letters: >> >> printf '00a\n00g\n00z\n00A\n00G\n00Z\n'> in >> $ LC_ALL=en_US.UTF-8 /bin/grep -E '[A-Z]' in >> 00g >> 00z >> 00A >> 00G >> 00Z >> >> With Paolo's change we avoid that common source of confusion: >> >> $ LC_ALL=en_US.UTF-8 ./grep -E '[A-Z]' in >> 00A >> 00G >> 00Z > > Or better, we're at glibc's mercy: > > $ LC_ALL=cs_CZ.UTF-8 devel/grep/+build/src/grep -E '[A-Z]' in > 00a > 00g > 00A > 00G > 00Z
Good point. But with those other more-common locales, grep now works the way people expect. That will go a long way towards minimizing confusion.
