> perl -e '  print "ä", uc "äm\n" '
ääm    <--- utf8, but no uppercase ä
> perl -e ' use utf8; print  "ä", uc "äm\n" '
m     <--- iso8859-1 string. When converted with iconv, I get 'äÄ' !!

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This was executed on Suse 10.0 and Ubuntu 6.06 with perl v5.8.7, completely 'utf8isized'. So obviously the pragma utf8 changes output to iso8859, on an utf8 system.

adding 'use locale;' changes nothing (and I checked that the locale was correct, de_DE.utf8), but 'use encoding utf8;' instead of 'use utf8;' works correctly.

After reading the perldocs, especially perlunicode, I'm still not sure whether one or both of them are bugs, but both seem at least surprising behaviour.

Bug or not?

In reply to bug in utf8 handling? by jethro

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