GNU bug report logs -
#1425
Longlines mode not preserving text properties
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Your message dated Fri, 30 Nov 2012 14:58:47 +0800
with message-id <87mwxzpoew.fsf <at> gnu.org>
and subject line Re: bug#1425: Longlines mode not preserving text properties
has caused the debbugs.gnu.org bug report #1425,
regarding Longlines mode not preserving text properties
to be marked as done.
(If you believe you have received this mail in error, please contact
help-debbugs <at> gnu.org.)
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1425: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=1425
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems
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Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.
Your bug report will be posted to the emacs-pretest-bug <at> gnu.org mailing list.
Please describe exactly what actions triggered the bug
and the precise symptoms of the bug:
I have some code that applies text properties via the
write-region-annotate-functions and after-insert-file-functions
mechanism in a major mode that also uses longlines-mode. When my text
properties span a soft newline longlines mode doesn't preserve them
when it converts spaces to newlines and back.
The following patch seems to fix my problem but perhaps someone who
groks longlines mode could come up with a more elegant solution.
--- longlines.el.orig 2008-11-24 14:50:17.000000000 -0800
+++ longlines.el 2008-11-24 14:58:22.000000000 -0800
@@ -240,7 +240,7 @@
If wrapping is performed, point remains on the line. If the line does
not need to be wrapped, move point to the next line and return t."
(if (longlines-set-breakpoint)
- (progn (insert-before-markers ?\n)
+ (progn (insert-before-markers-and-inherit ?\n)
(backward-char 1)
(delete-char -1)
(forward-char 1)
@@ -347,7 +347,13 @@
(goto-char (min beg end))
(while (search-forward "\n" reg-max t)
(unless (get-text-property (match-beginning 0) 'hard)
- (replace-match " ")))
+ (let* ((pos (match-beginning 0))
+ (props (text-properties-at pos nil)))
+ (replace-match " ")
+ (let* ((hard-start (member 'hard props))
+ (after-hard (cddr hard-start))
+ (newprops (nconc (ldiff props hard-start) after-hard)))
+ (set-text-properties pos (1+ pos) newprops) nil))))
(set-buffer-modified-p mod)
end)))
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In GNU Emacs 22.0.99.1 (powerpc-apple-darwin8.9.0, Carbon Version 1.6.0)
of 2007-05-06 on beagle
Windowing system distributor `Apple Inc.', version 10.4.11
configured using `configure '--without-x' '--prefix=/usr/local''
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: en_US.UTF-8
locale-coding-system: iso-8859-1
default-enable-multibyte-characters: t
Major mode: Coders at Work Editing
Minor modes in effect:
longlines-mode: t
encoded-kbd-mode: t
erc-track-mode: t
erc-track-minor-mode: t
erc-services-mode: t
erc-ring-mode: t
erc-pcomplete-mode: t
erc-netsplit-mode: t
erc-button-mode: t
erc-fill-mode: t
erc-autojoin-mode: t
smart-quote-mode: t
erc-irccontrols-mode: t
erc-noncommands-mode: t
shell-dirtrack-mode: t
tooltip-mode: t
mouse-wheel-mode: t
use-hard-newlines: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
unify-8859-on-encoding-mode: t
utf-translate-cjk-mode: t
auto-compression-mode: t
line-number-mode: t
transient-mark-mode: t
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Peter Seibel
http://www.codersatwork.com/
http://www.gigamonkeys.com/blog/
[Message part 3 (message/rfc822, inline)]
"Peter Seibel" <peter <at> gigamonkeys.com> writes:
> I have some code that applies text properties via the
> write-region-annotate-functions and after-insert-file-functions
> mechanism in a major mode that also uses longlines-mode. When my text
> properties span a soft newline longlines mode doesn't preserve them
> when it converts spaces to newlines and back.
>
> The following patch seems to fix my problem but perhaps someone who
> groks longlines mode could come up with a more elegant solution.
Longlines mode has been quasi-obsoleted by Visual Line mode since this
bug was files (and soon to be formally obsoleted), but I've committed a
tweaked version of this patch that doesn't use ldiff. Thanks.
This bug report was last modified 12 years and 235 days ago.
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