Package: emacs;
Reported by: Bob Rogers <rogers <at> modulargenetics.com>
Date: Tue, 14 Jan 2020 21:26:02 UTC
Severity: normal
Found in version 26.3
Done: Lars Ingebrigtsen <larsi <at> gnus.org>
Bug is archived. No further changes may be made.
Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):
From: Bob Rogers <rogers <at> modulargenetics.com> To: bug-gnu-emacs <at> gnu.org Subject: 26.3; ispell-really-hunspell sometimes fails in init Date: Tue, 14 Jan 2020 16:25:07 -0500
Spell checking can die with "(wrong-type-argument stringp nil)" when
ispell-really-hunspell is true. To reproduce (if it reproduces at all
on your system), just do "emacs -Q" with Hunspell installed and M-$ on
any of the words in the startup screen.
On some of the systems I use, it fails reliably when initializing; on
others, it works reliably. All systems are running the openSUSE Leap
15.1 release of GNU/Linux, fully updated, with the identical locally-
built RPM version of Emacs 26.3 (with no local patches) and the distro
Hunspell 1.6.2. The key seems to be whether ispell-dictionary-alist is
initialized before ispell-start-process is called; just a warning to
anyone who fails to reproduce this. But since it fails in "emacs -Q" on
systems with apparently identical software, I am at a complete loss to
figure this out.
When it fails, the backtrace looks like this:
Debugger entered--Lisp error: (wrong-type-argument stringp nil)
string-match("," nil 0)
split-string(nil "," t)
ispell-parse-hunspell-affix-file(nil)
ispell-hunspell-fill-dictionary-entry(nil)
ispell-start-process()
ispell-init-process()
ispell-buffer-local-words()
ispell-accept-buffer-local-defs()
ispell-word(nil nil nil t)
funcall-interactively(ispell-word nil nil nil t)
call-interactively(ispell-word nil nil)
command-execute(ispell-word)
The problem seems to be related to this code in the start of
ispell-start-process:
;; Parse hunspell affix file if using hunspell and entry is uninitialized.
(if ispell-really-hunspell
(or (cadr (assoc ispell-current-dictionary ispell-dictionary-alist))
(ispell-hunspell-fill-dictionary-entry ispell-current-dictionary)))
It appears that "nil" is valid for ispell-current-dictionary and means
"default", but ispell-hunspell-fill-dictionary-entry expects only a
string. On that basis, I would claim that there is a bug that has
perhaps been hidden by being on a rare execution path. But if
ispell-dictionary-alist is already initialized with a "nil" entry, then
ispell-hunspell-fill-dictionary-entry never gets called, leading to the
"reproducible irreproducibility" of this bug. And if
ispell-dictionary-alist should *always* be initialized and contain the
current entry, then this is dead code.
I don't know where or how ispell-current-dictionary is getting set up
on some systems but not on others, nor how it ought to be set up, so I
am unable to take this any further.
-- Bob Rogers
Modular Genetics Inc.
http://www.modulargenetics.com/
------------------------------------------------------------------------
In GNU Emacs 26.3 (build 1, x86_64-suse-linux-gnu, GTK+ Version 3.22.30)
of 2019-11-21 built on yuggoth
Windowing system distributor 'The X.Org Foundation', version 11.0.12003000
Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
Entering debugger...
Configured using:
'configure --with-pop --without-dbus --without-gsettings
--without-gconf --prefix=/usr --infodir=/usr/share/info
--mandir=/usr/share/man --sharedstatedir=/var/lib --libexecdir=/usr/lib
--with-x --with-xpm=no --with-jpeg --with-tiff --with-gif=no --with-png
--with-x-toolkit=gtk3 --x-includes=/usr/X11R6/include
--x-libraries=/usr/X11R6/lib64 --build x86_64-suse-linux 'CFLAGS=-g -O2
-fno-optimize-sibling-calls' LDFLAGS=-s'
Configured features:
JPEG TIFF PNG RSVG SOUND GLIB NOTIFY GNUTLS LIBXML2 FREETYPE XFT ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11 XDBE XIM THREADS
Important settings:
value of $LANG: en_US.UTF-8
locale-coding-system: utf-8-unix
Major mode: Debugger
Minor modes in effect:
tooltip-mode: t
global-eldoc-mode: t
electric-indent-mode: t
mouse-wheel-mode: t
tool-bar-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
buffer-read-only: t
line-number-mode: t
transient-mark-mode: t
Load-path shadows:
None found.
Features:
(shadow sort mail-extr emacsbug message rmc puny seq dired
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Memory information:
((conses 16 100243 8442)
(symbols 48 20704 1)
(miscs 40 88 143)
(strings 32 30091 1374)
(string-bytes 1 795489)
(vectors 16 15184)
(vector-slots 8 514416 10616)
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