On Fri, Dec 8, 2017 at 6:12 PM, Rob Landley <[email protected]> wrote: > > I dunno about "wrong", but I agree it's not what ubuntu's does. > Posix-2008 is ambivalent: > > -q Force each instance of non-printable filename characters and > <tab> characters to be written as the <question-mark> ( '?' ) > character. Implementations may provide this option by default > if the output is to a terminal device. >
POSIX 2008 defines 'printable character' as explicitly including space: http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap03.html#tag_03_287 http://pubs.opengroup.org/onlinepubs/9699919799/basedefs/V1_chap07.html#tag_07_03_01
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