printf %<n>s in UTF-8 is not always POSIX-compliant

[Vincent Lefevre <vincent@xxxxxxxxxx>]

Hi,

I've reported the following bug:

  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=659932

In UTF-8 locales:

xvii% printf ".%2s.\n" é
. é.
xvii% emulate sh
xvii% printf ".%2s.\n" é
.é.
xvii% emulate ksh       
xvii% printf ".%2s.\n" é
. é.

It is correct in sh mode (according to POSIX[*]), but not in ksh mode,
which should also follow the POSIX behavior. What about zsh mode?

[*] http://pubs.opengroup.org/onlinepubs/9699919799/utilities/printf.html
and
http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap05.html#tag_05
for %<n>s.

-- 
Vincent Lefèvre <vincent@xxxxxxxxxx> - Web: <http://www.vinc17.net/>
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Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)