[PATCH 1/2] posix: User scratch_buffer on fnmatch

[Florian Weimer]

* Paul Eggert:

> By the way, how important is it to support awful encodings like
> shift-JIS that contain bytes that look like '\'? If we don't have to 
> support these encodings any more, things get a bit easier. (Asking for
> a friend. :-)

There is a Shift-JIS variant which is ASCII-transparent (Windows-31J,
it's also specified by WhatWG/HTML5), so from a glibc point of view, it
would be just an ordinary charset like any other.

But feedback we have received is that the users who want Shift-JIS
really want the original thing.

We do not presently support either variant downstream, but one potential
way forward would be to turn Windows-31J into a fully supported glibc
charset with a corresponding ja_JP locale (which would imply downstream
support as well), and just hope that it displaces the original Shift-JIS
in the future.

Thanks,
Florian
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