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[debbugs-tracker] bug#12768: closed (24.1; flyspell highlights words whi

From: GNU bug Tracking System
Subject: [debbugs-tracker] bug#12768: closed (24.1; flyspell highlights words which ispell accepts)
Date: Tue, 06 Nov 2012 17:52:02 +0000

Your message dated Tue, 6 Nov 2012 18:48:19 +0100
with message-id <address@hidden>
and subject line Re: bug#12768: 24.1; flyspell highlights words which ispell 
has caused the debbugs.gnu.org bug report #12768,
regarding 24.1; flyspell highlights words which ispell accepts
to be marked as done.

(If you believe you have received this mail in error, please contact

12768: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=12768
GNU Bug Tracking System
Contact address@hidden with problems
--- Begin Message --- Subject: 24.1; flyspell highlights words which ispell accepts Date: Tue, 30 Oct 2012 13:23:12 +0000
For example, "executable's" is highlighted by flyspell, but
ispell-buffer ignores it.

In GNU Emacs 24.1.1 (x86_64-pc-linux-gnu, GTK+ Version 2.24.12)
 of 2012-09-22 on batsu, modified by Debian
Windowing system distributor `The X.Org Foundation', version 11.0.11300000
Configured using:
 `configure '--build' 'x86_64-linux-gnu' '--build' 'x86_64-linux-gnu'
 '--prefix=/usr' '--sharedstatedir=/var/lib' '--libexecdir=/usr/lib'
 '--localstatedir=/var/lib' '--infodir=/usr/share/info'
 '--mandir=/usr/share/man' '--with-pop=yes'
 '--with-crt-dir=/usr/lib/x86_64-linux-gnu' '--with-x=yes'
 '--with-x-toolkit=gtk' '--with-toolkit-scroll-bars'
 'build_alias=x86_64-linux-gnu' 'CFLAGS=-g -O2 -fstack-protector
 --param=ssp-buffer-size=4 -Wformat -Werror=format-security -Wall -O2'

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: en_GB.UTF-8
  value of $LC_NUMERIC: en_GB.UTF-8
  value of $LC_TIME: en_GB.UTF-8
  value of $LANG: en_GB.UTF-8
  value of $XMODIFIERS: @im=none
  locale-coding-system: utf-8-unix
  default enable-multibyte-characters: t

Major mode: Lua

Minor modes in effect:
  TeX-PDF-mode: t
  flyspell-mode: t
  recentf-mode: t
  show-paren-mode: t
  server-mode: t
  savehist-mode: t
  minibuffer-electric-default-mode: t
  iswitchb-mode: t
  icomplete-mode: t
  global-auto-revert-mode: t
  desktop-save-mode: t
  tooltip-mode: t
  mouse-wheel-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
  column-number-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
c o u n t <backspace> t e r - i n t u i i t i <backspace> 
<backspace> <backspace> t i v e l y SPC a n d SPC a 
n o <backspace> n o y i n g l y . M-q <return> <return> 
I S-SPC s u m p a <backspace> <backspace> <backspace> 
<backspace> y m p a t h i s e SPC w i t h SPC t h e 
SPC <backspace> <backspace> i s SPC f r o m SPC a SPC 
p r o g r a m m <C-backspace> <C-backspace> t h e SPC 
p o i n t SPC o f SPC v i e w SPC o f SPC t h e SPC 
u n d e r l y i n g SPC c o d e C-q ' s SPC s t r u 
c t u r e , SPC b u t SPC i t ' s <backspace> <backspace> 
C-q ' s SPC o d d SPC SPC <backspace> f r o m SPC a 
SPC u i s <backspace> <backspace> s <backspace> s e 
r - i n t e r a c e SPC <backspace> <backspace> <backspace> 
<backspace> f a c e SPC p o i o n t SPC o f <backspace> 
<backspace> <backspace> <backspace> <backspace> <backspace> 
n t SPC o f SPC v i e w . M-q C-c C-c y e s <return> 
M-x C-g <help-echo> <down-mouse-1> <mouse-1> <double-down-mouse-1> 
<double-mouse-1> <down-mouse-1> <mouse-1> M-x r e p 
[ o r t <backspace> <backspace> <backspace> <backspace> 
r e t - <backspace> <backspace> <backspace> <backspace> 
o r t - b <backspace> e m , a c s <backspace> <backspace> 
<backspace> <backspace> a c s - b u f <return> <backspace> 
g <return>

Recent messages:
Checking 24 files in /usr/share/emacs/24.1/lisp/cedet...
Checking 57 files in /usr/share/emacs/24.1/lisp/calendar...
Checking 87 files in /usr/share/emacs/24.1/lisp/calc...
Checking 65 files in /usr/share/emacs/24.1/lisp/obsolete...
Checking 1 files in /usr/share/emacs/24.1/leim...
Checking for load-path shadows...done
Sending via mail...

Load-path shadows:
/home/rrt/local/share/emacs/site-lisp/browse-kill-ring hides 
/home/rrt/local/share/emacs/site-lisp/dict hides 
/home/rrt/.emacs.d/elpa/dictionary-1.8.7/dictionary-init hides 
/home/rrt/.emacs.d/elpa/dictionary-1.8.7/dictionary hides 
/home/rrt/.emacs.d/elpa/dictionary-1.8.7/link hides 
/home/rrt/.emacs.d/elpa/dictionary-1.8.7/connection hides 
/usr/share/emacs/site-lisp/golang-mode/go-mode-load hides 
/usr/share/emacs/site-lisp/golang-mode/go-mode hides 
/usr/share/emacs/24.1/site-lisp/cmake-data/cmake-mode hides 
/usr/share/emacs/24.1/site-lisp/cdargs hides /usr/share/emacs/site-lisp/cdargs
/usr/share/emacs/site-lisp/rst hides /usr/share/emacs/24.1/lisp/textmodes/rst
/usr/share/emacs24/site-lisp/dictionaries-common/ispell hides 
/usr/share/emacs24/site-lisp/dictionaries-common/flyspell hides 

(newcomment shadow sort gnus-util mail-extr emacsbug message format-spec
rfc822 mml mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231
mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums
mm-util mail-prsvr mail-utils find-func help-mode view etags preview
prv-emacs info reporter tex-buf font-latex latex tex-style tex noutline
outline sh-script executable multi-isearch make-mode cperl-mode cc-mode
cc-fonts cc-guess cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars
cc-defs autoconf autoconf-mode flymake compile vc-git face-remap
flyspell smart-quotes lua-mode comint ansi-color ring
auto-dictionary-autoloads c-eldoc-autoloads dictionary-autoloads
diff-git-autoloads dired-isearch-autoloads full-ack-autoloads
guess-style-autoloads kill-ring-search-autoloads magit-autoloads
mv-shell-autoloads tumble-autoloads http-post-simple-autoloads package
tabulated-list completing-help recentf tree-widget wid-edit uniquify
regexp-opt paren server savehist minibuf-eldef iswitchb icomplete
autorevert desktop cus-start cus-load ropemacs pymacs ispell
user-site-loaddefs advice advice-preload yasnippet help-fns derived
edmacro kmacro easymenu assoc cl muse-autoloads go-mode-load
emacs-goodies-el emacs-goodies-custom emacs-goodies-loaddefs easy-mmode
preview-latex tex-site auto-loads time-date tooltip ediff-hook vc-hooks
lisp-float-type mwheel x-win x-dnd tool-bar dnd fontset image fringe
lisp-mode register page menu-bar rfn-eshadow timer select scroll-bar
mouse jit-lock font-lock syntax facemenu font-core frame cham georgian
utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean
japanese hebrew greek romanian slovak czech european ethiopic indian
cyrillic chinese case-table epa-hook jka-cmpr-hook help simple abbrev
minibuffer loaddefs button faces cus-face files text-properties overlay
sha1 md5 base64 format env code-pages mule custom widget
hashtable-print-readable backquote make-network-process dbusbind
dynamic-setting system-font-setting font-render-setting move-toolbar gtk
x-toolkit x multi-tty emacs)


--- End Message ---
--- Begin Message --- Subject: Re: bug#12768: 24.1; flyspell highlights words which ispell accepts Date: Tue, 6 Nov 2012 18:48:19 +0100 User-agent: Mutt/1.5.21 (2010-09-15)
On Thu, Nov 01, 2012 at 04:44:01PM +0200, Eli Zaretskii wrote:
> > Date: Thu, 1 Nov 2012 01:10:11 +0100
> > From: Agustin Martin <address@hidden>
> > Cc: address@hidden
> > 
> > Really strange. With your steps I can even reproduce the problem with
> > something as simple as
> > 
> > dnl -- D
> > 
> > If I add something before dnl  I still get the problem.
> > 
> > sdfdsfsdnl -- D
> > 
> > IIf I either break the double dash (no double dashes at all) or the
> > dnl or remove the "D" after the dashes problem disappear
> > 
> > dfnl -- D
> > dnl - - D
> > dnl --
> > 
> > autotest-mode.el is a small file, but II  do not see any hint about
> > what is happening here. Seems to do something strange with double
> > dashes associated with dnl, but I am absolutely clueless, help
> > welcome.
> If you step through ispell-region, you will see that it goes bananas
> because ispell-skip-region-alist has "--+" as part of it, which
> matches the dashes between "dnl" and the text of the comment.  What
> ispell-region does is remove the dashes, and then _prepend_ "dnl"
> (because it's a comment-start string).  The result is that we send
> something like "^dnl FOO" to the speller, and the character positions
> get screwed up, because the characters between "dnl" and "FOO" were
> removed.

I have been dealing with this a bit more and seems I now I understand
things better.

(ispell-region) splits regions to spell in lines, and inside lines in
portions separated by skip-regions, which are sent to ispell pipe. 
When inside a comment, the comment string is added as string prefix
before sending to the ispell pipe  (I guess to make ispell know that
the string is part of a comment).

However ispell understand this prefix in few modes and of course not in
autoconf mode, where `dnl' is spell-checked as any other word (is the only
mode I remember now where comment string is an alphabetic string). For
other modes the comment string is just ignored by ispell for anything than
knowing that string is inside a comment (but properly shifted), and things
work with proper shifts.

However, for autoconf mode `dnl -- D' dnl is checked first and later is
`D' what is sent is `dnl  D' (with a dnl prefix), where `dnl' is checked
again messing up everything because ispell checks dnl where `D' position
is tracked (and expected by ispell.el instead of `dnl').

I have committed a change (r110817) that simply does not prefix the
strings when comment-start when in autoconf-mode (ispell does not support
that prefix anyway).

ispell still does not skip `dnl' as comment header and is shown as a
misspelling, but for everything else seems to work. However, please test

> Btw, WIBNI ispell.el had a debug option, which, if set, would collect
> in a special buffer everything we send to the speller and its
> responses.  I find myself adding '(message "sent %s" strin)'
> etc. every time I need to debug the communications between ispell.el
> and the speller program.  WDYT?

I have also added a proof of concept for that (r110816), mostly intended to
be enabled through dedicated wrapper functions that when called create the
debug buffer and enable debugging messages sent through a common function. 
This is still very preliminary, with only `ispell-buffer-with-debug' using
it, but provides some info and as problems get debugged can be extended. 
Suggestions are welcome, even about a complete re-design if really needed.


--- End Message ---

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