On Tue, Dec 5, 2017 at 4:37 PM, ISHIKAWA,chiaki <ishik...@yk.rim.or.jp> wrote:
> There are other non-ASCII character issues such as
> https://bugzilla.mozilla.org/show_bug.cgi?id=1258613

Very weird bug! (Summary for others: decomposed voiced sound mark is
rendered on the wrong base character.)

> But the bug I mention occurs because some characters are encoded DIFFERENTLY
> under iOS and the rest of the world when UTF-8 is used.

HFS+ decomposed Unicode leakage to other systems causes pain, but the
topic of this thread isn't affected by Unicode normalization.

> By mentioning the bug, I just wanted to point out that there *ARE* obnoxious
> bugs regarding non-ASCII character handling in mozilla software.
> But majority of the Japanese users probably failed to file the non-ASCII
> character bugs, and just think, "oh, another instance of Japanese characters
> not passed correctly between mozilla applications and the external programs,
> etc."

Possibly, but unfiled bugs don't get fixed and, as seen with non-ASCII
path handling with non-UTF-8 Linux locales, even filed bugs don't get
fixed. As the experiments documented in my previous email to this
thread indicate, non-UTF-8 paths already cause such breakage that at
this point it no longer makes sense to even pretend to support them.

> I have noted that, in the last three months or so, some Japanese strings
> copied from Mozilla TB or mozilla FF are not parsed correctly when
> they are inserted into other programs.

That seems worrying, but without knowing which OS and which apps, I
can't really comment further.

-- 
Henri Sivonen
hsivo...@hsivonen.fi
https://hsivonen.fi/
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