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bug#24206: 25.1; Curly quotes generate invalid strings, leading to a seg


From: Philipp Stephani
Subject: bug#24206: 25.1; Curly quotes generate invalid strings, leading to a segfault
Date: Thu, 11 Aug 2016 23:51:41 +0000



Eli Zaretskii <address@hidden> schrieb am Do., 11. Aug. 2016 um 13:05 Uhr:
> From: Phil <address@hidden>
> Date: Thu, 11 Aug 2016 11:55:05 -0700
>
>
> Build is from the emacs-25 branch.
>
> $ ./emacs -Q -eval "(progn (defface test nil \"\`\\240'\") (customize-face 'test))"
>
> character.h:703: Emacs fatal error: assertion failed: CHAR_VALID_P (ch)
> Fatal error 6: Aborted
>
> I think this is serious enough to be release-blocking.  Seen in the wild
> with older versions of show-wspace.el.

Please show the real-life example where this rears its ugly head.  The
recipe (which is appreciated) is obscure enough to be easily avoided,
so it doesn't yet convince me this should block a release.  There's
always one more crash out there.


Ubuntu Trusty Tahr (supported until 2019) contains a package emacs-goodies-el, which contains a file show-wspace.el, which contains a face with the docstring "*Face for highlighting non-breaking spaces (`\240')in Font-Lock mode." Attempting to customize that face leads to the segfault. 

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