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#4533
23.1: reverting fails to update line ending mode line
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Your bug report
#4533: 23.1: reverting fails to update line ending mode line
which was filed against the emacs package, has been closed.
The explanation is attached below, along with your original report.
If you require more details, please reply to 4533 <at> debbugs.gnu.org.
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4533: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=4533
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems
[Message part 2 (message/rfc822, inline)]
Chong Yidong <cyd <at> stupidchicken.com> writes:
>> So maybe the problem is that C-x C-s should not set
>> buffer-file-coding-system-explicit (unless the C-x C-s prompted the user
>> to choose a coding-system, I guess).
>
> I see. The comments in mule.el say that
>
> ;; This variable is set in these three cases:
> ;; (1) A file is read by a coding system specified explicitly.
> ;; after-insert-file-set-coding sets the car of this value to
> ;; coding-system-for-read, and sets the cdr to nil.
> ;; (2) A buffer is saved.
> ;; After writing, basic-save-buffer-1 sets the car of this value
> ;; to last-coding-system-used.
> ;; (3) set-buffer-file-coding-system is called.
> ;; The cdr of this value is set to the specified coding system.
> ;; This variable is used for decoding in revert-buffer and encoding in
> ;; select-safe-coding-system.
>
> Indeed, this seems to imply that (2) can be omitted, as you suggest,
> since "force selecting" a coding system should trigger (1) and (3). Is
> there any reason that (2) was originally included?
Since there's been no response, and my testing showed no ill effects to
this change, I went ahead and committed it in the trunk. Let's see how
it shakes out.
[Message part 3 (message/rfc822, inline)]
I had a buffer with a mode line like this:
- U:(DOS)
I ran dos2unix on the file, and did M-x revert-buffer.
The DOS stayed in the mode line until I killed the buffer and
revisited the buffer.
In GNU Emacs 23.1.1 (x86_64-pc-linux-gnu)
of 2009-09-07 on benjamin
Windowing system distributor `The X.Org Foundation', version 11.0.10503000
configured using `configure '--prefix=/usr'
'--build=x86_64-pc-linux-gnu' '--host=x86_64-pc-linux-gnu'
'--mandir=/usr/share/man' '--infodir=/usr/share/info'
'--datadir=/usr/share' '--sysconfdir=/etc' '--localstatedir=/var/lib'
'--libdir=/usr/lib64' '--program-suffix=-emacs-23'
'--infodir=/usr/share/info/emacs-23' '--with-sound' '--with-x'
'--without-toolkit-scroll-bars' '--without-gif' '--with-jpeg'
'--with-png' '--with-rsvg' '--with-tiff' '--with-xpm' '--with-xft'
'--without-libotf' '--without-m17n-flt' '--with-x-toolkit=no'
'--without-hesiod' '--without-kerberos' '--without-kerberos5'
'--with-gpm' '--with-dbus' 'build_alias=x86_64-pc-linux-gnu'
'host_alias=x86_64-pc-linux-gnu' 'CFLAGS=-O2 -pipe' 'LDFLAGS=-Wl,-O1''
Important settings:
value of $LC_ALL: nil
value of $LC_COLLATE: nil
value of $LC_CTYPE: nil
value of $LC_MESSAGES: nil
value of $LC_MONETARY: nil
value of $LC_NUMERIC: nil
value of $LC_TIME: nil
value of $LANG: nil
value of $XMODIFIERS: nil
locale-coding-system: nil
default-enable-multibyte-characters: t
Major mode: Python
Minor modes in effect:
show-paren-mode: t
tooltip-mode: t
tool-bar-mode: t
mouse-wheel-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
global-auto-composition-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
column-number-mode: t
line-number-mode: t
transient-mark-mode: t
Recent input:
n i c o d e C-s C-s C-s C-s C-s C-s C-s C-x b <return>
M-v M-v M-v M-v C-p C-p C-p C-p C-p C-p C-p C-p C-p
C-p C-n C-n C-n C-n C-n C-n C-f C-f C-f C-f C-f C-f
C-f C-f C-f C-f C-f C-f C-f C-f C-f C-f C-p C-p C-p
C-p C-p C-p C-p C-f C-f <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> <backspace> <backspace> <backspace> <backspace>
<backspace> c l a s s SPC _ u n i c o d e ( s t r )
: <return> p a s s C-x C-s C-v C-v C-v C-v C-v C-v
C-v M-v M-v M-v C-x b <return> <up> <up> <up> <up>
<up> <up> <up> <up> <up> <up> <up> <up> <left> <left>
<left> <left> <left> <left> <left> <left> _ C-x C-s
M-v C-v C-n C-n C-n C-n C-n C-n C-n <return> C-p <tab>
# SPC S D <backspace> <backspace> <backspace> <backspace>
p y . t e s t . s k i p ( " w i l l SPC r e w r i t
e " ) C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n C-n
C-n C-n C-n C-n C-n <return> p y . t e s t . s k i
p ( " w i l l SPC r e w r i t e " ) C-x C-s <help-echo>
M-x r e v e r t - u f <tab> <backspace> <backspace>
b u f <tab> <return> y M-v M-v M-v f r C-x k <return>
C-x C-f t e s t - s e r <tab> <backspace> <backspace>
<backspace> <backspace> _ s e r <tab> <return> C-v
C-v C-v M-v M-v M-x r e p o r t - e m <tab> <retur
n>
Recent messages:
Local value of py-indent-offset set to 4
Using the CPython shell
test_serializer.py changed on disk; really edit the buffer? (y, n, r or C-h)
Fontifying test_serializer.py... (regexps............)
Local value of py-indent-offset set to 4
Using the CPython shell
byte-code: File reverted: /home/benjamin/dev/repos/pylib/test_serializer.py
Fontifying test_serializer.py... (regexps............)
Local value of py-indent-offset set to 4
Using the CPython shell
call-interactively: End of buffer
This bug report was last modified 12 years and 108 days ago.
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Copyright (C) 1999 Darren O. Benham,
1997,2003 nCipher Corporation Ltd,
1994-97 Ian Jackson.