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bug#41706: 26.1; sort-subr predicate cannot be set successfully
From: |
Marvin Gülker |
Subject: |
bug#41706: 26.1; sort-subr predicate cannot be set successfully |
Date: |
Thu, 4 Jun 2020 13:09:22 +0200 |
Dear maintainers,
I was trying to define a variant of `sort-lines' which sorts lines
according to the current locale's rules, i.e. instead of comparing the
strings with the default (as the docs of the underlying function
`sort-subr' say) predicate of `string<' they should be compared with
`string-collate-lessp'. I copied the source code of `sort-lines' and
adapted the call to `sort-subr' to use `string-collate-lessp', resulting
in this function:
(defun my-sort-lines-collate (reverse beg end)
(interactive "P\nr")
(save-excursion
(save-restriction
(narrow-to-region beg end)
(goto-char (point-min))
(let ;; To make `end-of-line' and etc. to ignore fields.
((inhibit-field-text-motion t))
(sort-subr reverse 'forward-line 'end-of-line nil nil
'string-collate-lessp)))))
This function, when called, only results in an error "Wrong type
argument: stringp" (tested in `emacs -Q'). Interestingly, if the 6th
argument to `sort-subr' is changed to `string<' (which is said to be the
default value!) the very same error results.
It does not make a difference to explicitely define it with a lambda
instead:
(defun my-sort-lines-collate (reverse beg end)
(interactive "P\nr")
(save-excursion
(save-restriction
(narrow-to-region beg end)
(goto-char (point-min))
(let ;; To make `end-of-line' and etc. to ignore fields.
((inhibit-field-text-motion t))
(sort-subr reverse 'forward-line 'end-of-line nil nil (lambda (a b)
(string-collate-lessp a b)))))))
This code results in the same error.
I assume this is a kind of bug. Either way, I'd like to request as a
feature a variant of `sort-lines' that is aware of the locale's sorting
rules.
In GNU Emacs 26.1 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.24.5)
of 2019-09-23, modified by Debian built on x86-grnet-01
Windowing system distributor 'The X.Org Foundation', version 11.0.12004000
System Description: Debian GNU/Linux 10 (buster)
Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
Mark set
my-sort-lines-collate
Mark set
Wrong type argument: stringp, (193 . 215)
Configured using:
'configure --build x86_64-linux-gnu --prefix=/usr
--sharedstatedir=/var/lib --libexecdir=/usr/lib
--localstatedir=/var/lib --infodir=/usr/share/info
--mandir=/usr/share/man --enable-libsystemd --with-pop=yes
--enable-locallisppath=/etc/emacs:/usr/local/share/emacs/26.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/26.1/site-lisp:/usr/share/emacs/site-lisp
--with-sound=alsa --without-gconf --with-mailutils --build
x86_64-linux-gnu --prefix=/usr --sharedstatedir=/var/lib
--libexecdir=/usr/lib --localstatedir=/var/lib
--infodir=/usr/share/info --mandir=/usr/share/man --enable-libsystemd
--with-pop=yes
--enable-locallisppath=/etc/emacs:/usr/local/share/emacs/26.1/site-lisp:/usr/local/share/emacs/site-lisp:/usr/share/emacs/26.1/site-lisp:/usr/share/emacs/site-lisp
--with-sound=alsa --without-gconf --with-mailutils --with-x=yes
--with-x-toolkit=gtk3 --with-toolkit-scroll-bars 'CFLAGS=-g -O2
-fdebug-prefix-map=/build/emacs-StqULU/emacs-26.1+1=. -fstack-protector-strong
-Wformat -Werror=format-security -Wall' 'CPPFLAGS=-Wdate-time
-D_FORTIFY_SOURCE=2' LDFLAGS=-Wl,-z,relro'
Configured features:
XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS GSETTINGS NOTIFY
ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT LIBOTF XFT ZLIB
TOOLKIT_SCROLL_BARS GTK3 X11 THREADS LIBSYSTEMD LCMS2
Important settings:
value of $LANG: de_DE.UTF-8
locale-coding-system: utf-8-unix
Major mode: Lisp Interaction
Minor modes in effect:
tooltip-mode: t
global-eldoc-mode: t
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
line-number-mode: t
transient-mark-mode: t
Load-path shadows:
None found.
Features:
(shadow mail-extr emacsbug message rmc puny seq byte-opt gv bytecomp
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rfc822 mml easymenu mml-sec password-cache epa derived epg epg-config
gnus-util rmail rmail-loaddefs mm-decode mm-bodies mm-encode mail-parse
rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045
ietf-drums mm-util mail-prsvr mail-utils sort elec-pair time-date
mule-util tooltip eldoc electric uniquify ediff-hook vc-hooks
lisp-float-type mwheel term/x-win x-win term/common-win x-dnd tool-bar
dnd fontset image regexp-opt fringe tabulated-list replace newcomment
text-mode elisp-mode lisp-mode prog-mode register page menu-bar
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syntax facemenu font-core term/tty-colors frame cl-generic cham georgian
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Memory information:
((conses 16 95777 7946)
(symbols 48 20407 1)
(miscs 40 49 118)
(strings 32 28381 1410)
(string-bytes 1 744119)
(vectors 16 14643)
(vector-slots 8 496828 7804)
(floats 8 50 209)
(intervals 56 304 7)
(buffers 992 11))
- bug#41706: 26.1; sort-subr predicate cannot be set successfully,
Marvin Gülker <=
- bug#41706: 26.1; sort-subr predicate cannot be set successfully, Michael Heerdegen, 2020/06/04
- bug#41706: 26.1; sort-subr predicate cannot be set successfully, Marvin Gülker, 2020/06/04
- bug#41706: 26.1; sort-subr predicate cannot be set successfully, Eli Zaretskii, 2020/06/05
- bug#41706: 26.1; sort-subr predicate cannot be set successfully, Michael Heerdegen, 2020/06/05
- bug#41706: 26.1; sort-subr predicate cannot be set successfully, Eli Zaretskii, 2020/06/05
- bug#41706: 26.1; sort-subr predicate cannot be set successfully, Michael Heerdegen, 2020/06/10
- bug#41706: 26.1; sort-subr predicate cannot be set successfully, Eli Zaretskii, 2020/06/10
- bug#41706: 26.1; sort-subr predicate cannot be set successfully, Michael Heerdegen, 2020/06/11
- bug#41706: 26.1; sort-subr predicate cannot be set successfully, Eli Zaretskii, 2020/06/11
- bug#41706: 26.1; sort-subr predicate cannot be set successfully, Michael Heerdegen, 2020/06/11