Re: [PATCH 0/8] Add multi-byte support

[Christoph Anton Mitterer <calestyo@xxxxxxxxxxxx>]

Just to give a simple example:

x.sh:
   char=ä
   printf '%s' "$char" | hd
   
   byte="$( printf '\244' )"
   printf '%s' "$byte" | hd
   
   printf '%s' "${char%$byte}" | hd


$ LC_ALL=en_US.UTF-8 bash x.sh 
00000000  c3 a4                                             |..|
00000002
00000000  a4                                                |.|
00000001
00000000  c3                                                |.|
00000001
$ LC_ALL=C bash x.sh 
00000000  c3 a4                                             |..|
00000002
00000000  a4                                                |.|
00000001
00000000  c3                                                |.|
00000001

$ dash x.sh 
00000000  c3 a4                                             |..|
00000002
00000000  a4                                                |.|
00000001
00000000  c3                                                |.|
00000001

but:

$ LC_ALL=en_US.UTF-8 zsh x.sh 
00000000  c3 a4                                             |..|
00000002
00000000  a4                                                |.|
00000001
00000000  c3 a4                                             |..|
00000002
$ LC_ALL=C zsh x.sh 
00000000  c3 a4                                             |..|
00000002
00000000  a4                                                |.|
00000001
00000000  c3                                                |.|
00000001


Again, not saying that this means dash shouldn't support other
locales... but people may (of course wrongly) rely on the behaviour
that dash is always in the C locale.

Even if that doesn't change right now with the fnmatch()
implementation, it could in principle do so with any change there.


Ceers,
Chris.