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bug#29506: find-composition segfaults
From: |
Eli Zaretskii |
Subject: |
bug#29506: find-composition segfaults |
Date: |
Thu, 30 Nov 2017 20:02:36 +0200 |
> From: Edgard Bikelis <bikelis@gmail.com>
> Date: Thu, 30 Nov 2017 03:52:57 -0200
>
> I was testing decomposing some characters in malayalam, and by evaluating
> this:
>
> (find-composition 0 1 "ദേ")
>
> emacs segfaults when it’s in gui mode, but not when it’s on the
> console, with the -nw option. I have asked on #emacs on freenode, and
> other people had the same effect on version 25.2 and 26. It seems to
> happen with unicode past some high number, it doesn’t happen with "á"
> for instance, with a+ combining acute above, but it does happen in
> Arabic also, like with "ڜ".
More accurately, it aborts or segfaults for any string with characters
that are not supported by the default face's font. On a TTY, fonts
are never an issue, so it never crashes there.
I fixed this now for Emacs 26, thanks for reporting this issue.