GNU bug report logs - #71164
14.0.5; Font lock annoyance

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Package: auctex; Reported by: Derek Clegg <derek@HIDDEN>; Done: Arash Esbati <arash@HIDDEN>; Maintainer for auctex is bug-auctex@HIDDEN.
bug marked as fixed in version 14.0.6, send any further explanations to 71164 <at> debbugs.gnu.org and Derek Clegg <derek@HIDDEN> Request was from Arash Esbati <arash@HIDDEN> to control <at> debbugs.gnu.org. Full text available.

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From: Ikumi Keita <ikumi@HIDDEN>
To: Derek Clegg <derek@HIDDEN>
Subject: Re: bug#71164: 14.0.5; Font lock annoyance
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Comments: In-reply-to Derek Clegg <derek@HIDDEN>
 message dated "Sat, 29 Jun 2024 18:49:02 -0700."
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Hi Derek and all,

>>>>> Derek Clegg <derek@HIDDEN> writes:
> Thanks for the email. This has fixed the original problem, so I think
> it=E2=80=99s good to go.

Thank you. I'll install the fix soon.

>> On Jun 29, 2024, at 1:19=E2=80=AFPM, Arash Esbati <arash@HIDDEN> wrote:
>>> And while we're at it: Do you have a recipe to reproduce this,
>>> preferably starting with "emacs -Q"?

Actually, I couldn't recall how I reproduced the issue for a while=F0=9F=A5=
=B4. At
last I succeeded in reproducing again=F0=9F=98=86.
1. emacs -Q
2. M-x global-font-lock-mode RET
3. M-x load-file RET /usr/local/share/emacs/site-lisp/auctex.el RET
4. Open circ.tex
5. C-c C-m verb RET somewhere appropriate.
Then I have
Error during redisplay: (internal--syntax-propertize 2) signaled (error "Fo=
nt-lock trying to use keywords before setting them up")

Regards,
Ikumi Keita
#StandWithUkraine #StopWarInUkraine
#Gaza #StopMassiveKilling #CeasefireNOW
Information forwarded to bug-auctex@HIDDEN:
bug#71164; Package auctex. Full text available.

Message received at 71164 <at> debbugs.gnu.org:


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Subject: Re: bug#71164: 14.0.5; Font lock annoyance
From: Derek Clegg <derek@HIDDEN>
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Thanks for the email. This has fixed the original problem, so I think =
it=E2=80=99s good to go.

Best,
Derek

> On Jun 29, 2024, at 1:19=E2=80=AFPM, Arash Esbati <arash@HIDDEN> =
wrote:
>=20
> Arash Esbati <arash@HIDDEN> writes:
>=20
>> Arash Esbati <arash@HIDDEN> writes:
>>=20
>>> Ikumi Keita <ikumi@HIDDEN> writes:
>>>=20
>>>> It seems it does work while font lock itself is still disabled. I
>>>> speculate that the current syntax propertize function only needs =
that
>>>> font lock variables are set up. Then I hope the patch below does =
the
>>>> trick.
>>>>=20
>>>> Derek, can you try it?
>>>>=20
>>>> Regards,
>>>> Ikumi Keita
>>>> #StandWithUkraine #StopWarInUkraine
>>>> #Gaza #StopMassiveKilling #CeasefireNOW
>>>>=20
>>>> diff --git a/font-latex.el b/font-latex.el
>>>> index ccddd8b1..7a02e3f4 100644
>>>> --- a/font-latex.el
>>>> +++ b/font-latex.el
>>>> @@ -1313,7 +1313,10 @@ triggers Font Lock to recognize the change."
>>>>   (let ((kws ;; (if (derived-mode-p 'docTeX-mode)
>>>>              ;;     font-latex-doctex-syntactic-keywords
>>>>                font-latex-syntactic-keywords)) ;; )
>>>> -    (syntax-propertize-via-font-lock kws)))
>>>> +    (let ((func (syntax-propertize-via-font-lock kws)))
>>>> +      (lambda (start end)
>>>> +        (or font-lock-set-defaults (font-lock-set-defaults))
>>>> +        (funcall func start end)))))
>>>>=20
>>>> ;;;###autoload
>>>> (defun font-latex-setup ()
>>>=20
>>> Derek, can you please report back if the patch above fixes the issue =
for
>>> you?  TIA.
>>=20
>> And while we're at it: Do you have a recipe to reproduce this,
>> preferably starting with "emacs -Q"?  I don't get the errors you
>> described with:
>>=20
>>  =E2=80=A2 emacs -Q
>>  =E2=80=A2 Activate AUCTeX
>>  =E2=80=A2 eval (setq TeX-install-font-lock #'ignore)
>>  =E2=80=A2 open a .tex file and start typing
>=20
> Ping!  Any updates on this?
>=20
> @Keita: In case we don't get any response, how do want to proceed?
> Install the change or close this report without the change?  My choice
> would be the latter since I can't reproduce the issue.
>=20
> Best, Arash
Information forwarded to bug-auctex@HIDDEN:
bug#71164; Package auctex. Full text available.

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Subject: Re: bug#71164: 14.0.5; Font lock annoyance
To: Arash Esbati <arash@HIDDEN>
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I was able to reproduce the issue.  The patch fixes it on my end, and
I suspect in general.
Information forwarded to bug-auctex@HIDDEN:
bug#71164; Package auctex. Full text available.

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From: Arash Esbati <arash@HIDDEN>
To: Derek Clegg <derek@HIDDEN>
Subject: Re: bug#71164: 14.0.5; Font lock annoyance
In-Reply-To: <m2v82c670n.fsf@HIDDEN> (Arash Esbati's message of
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Arash Esbati <arash@HIDDEN> writes:

> Arash Esbati <arash@HIDDEN> writes:
>
>> Ikumi Keita <ikumi@HIDDEN> writes:
>>
>>> It seems it does work while font lock itself is still disabled. I
>>> speculate that the current syntax propertize function only needs that
>>> font lock variables are set up. Then I hope the patch below does the
>>> trick.
>>>
>>> Derek, can you try it?
>>>
>>> Regards,
>>> Ikumi Keita
>>> #StandWithUkraine #StopWarInUkraine
>>> #Gaza #StopMassiveKilling #CeasefireNOW
>>>
>>> diff --git a/font-latex.el b/font-latex.el
>>> index ccddd8b1..7a02e3f4 100644
>>> --- a/font-latex.el
>>> +++ b/font-latex.el
>>> @@ -1313,7 +1313,10 @@ triggers Font Lock to recognize the change."
>>>    (let ((kws ;; (if (derived-mode-p 'docTeX-mode)
>>>               ;;     font-latex-doctex-syntactic-keywords
>>>                 font-latex-syntactic-keywords)) ;; )
>>> -    (syntax-propertize-via-font-lock kws)))
>>> +    (let ((func (syntax-propertize-via-font-lock kws)))
>>> +      (lambda (start end)
>>> +        (or font-lock-set-defaults (font-lock-set-defaults))
>>> +        (funcall func start end)))))
>>>=20=20
>>>  ;;;###autoload
>>>  (defun font-latex-setup ()
>>
>> Derek, can you please report back if the patch above fixes the issue for
>> you?  TIA.
>
> And while we're at it: Do you have a recipe to reproduce this,
> preferably starting with "emacs -Q"?  I don't get the errors you
> described with:
>
>   =E2=80=A2 emacs -Q
>   =E2=80=A2 Activate AUCTeX
>   =E2=80=A2 eval (setq TeX-install-font-lock #'ignore)
>   =E2=80=A2 open a .tex file and start typing

Ping!  Any updates on this?

@Keita: In case we don't get any response, how do want to proceed?
Install the change or close this report without the change?  My choice
would be the latter since I can't reproduce the issue.

Best, Arash
Information forwarded to bug-auctex@HIDDEN:
bug#71164; Package auctex. Full text available.

Message received at 71164 <at> debbugs.gnu.org:


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From: Arash Esbati <arash@HIDDEN>
To: Derek Clegg <derek@HIDDEN>
Subject: Re: bug#71164: 14.0.5; Font lock annoyance
In-Reply-To: <m2o789ysj6.fsf@HIDDEN> (Arash Esbati's message of
 "Mon, 10 Jun 2024 12:57:17 +0200")
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Arash Esbati <arash@HIDDEN> writes:

> Ikumi Keita <ikumi@HIDDEN> writes:
>
>> It seems it does work while font lock itself is still disabled. I
>> speculate that the current syntax propertize function only needs that
>> font lock variables are set up. Then I hope the patch below does the
>> trick.
>>
>> Derek, can you try it?
>>
>> Regards,
>> Ikumi Keita
>> #StandWithUkraine #StopWarInUkraine
>> #Gaza #StopMassiveKilling #CeasefireNOW
>>
>> diff --git a/font-latex.el b/font-latex.el
>> index ccddd8b1..7a02e3f4 100644
>> --- a/font-latex.el
>> +++ b/font-latex.el
>> @@ -1313,7 +1313,10 @@ triggers Font Lock to recognize the change."
>>    (let ((kws ;; (if (derived-mode-p 'docTeX-mode)
>>               ;;     font-latex-doctex-syntactic-keywords
>>                 font-latex-syntactic-keywords)) ;; )
>> -    (syntax-propertize-via-font-lock kws)))
>> +    (let ((func (syntax-propertize-via-font-lock kws)))
>> +      (lambda (start end)
>> +        (or font-lock-set-defaults (font-lock-set-defaults))
>> +        (funcall func start end)))))
>>=20=20
>>  ;;;###autoload
>>  (defun font-latex-setup ()
>
> Derek, can you please report back if the patch above fixes the issue for
> you?  TIA.

And while we're at it: Do you have a recipe to reproduce this,
preferably starting with "emacs -Q"?  I don't get the errors you
described with:

  =E2=80=A2 emacs -Q
  =E2=80=A2 Activate AUCTeX
  =E2=80=A2 eval (setq TeX-install-font-lock #'ignore)
  =E2=80=A2 open a .tex file and start typing

Best, Arash
Information forwarded to bug-auctex@HIDDEN:
bug#71164; Package auctex. Full text available.

Message received at 71164 <at> debbugs.gnu.org:


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From: Arash Esbati <arash@HIDDEN>
To: Derek Clegg <derek@HIDDEN>
Subject: Re: bug#71164: 14.0.5; Font lock annoyance
In-Reply-To: <17239.1716558872@localhost> (Ikumi Keita's message of "Fri, 24
 May 2024 22:54:32 +0900")
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Ikumi Keita <ikumi@HIDDEN> writes:

> It seems it does work while font lock itself is still disabled. I
> speculate that the current syntax propertize function only needs that
> font lock variables are set up. Then I hope the patch below does the
> trick.
>
> Derek, can you try it?
>
> Regards,
> Ikumi Keita
> #StandWithUkraine #StopWarInUkraine
> #Gaza #StopMassiveKilling #CeasefireNOW
>
> diff --git a/font-latex.el b/font-latex.el
> index ccddd8b1..7a02e3f4 100644
> --- a/font-latex.el
> +++ b/font-latex.el
> @@ -1313,7 +1313,10 @@ triggers Font Lock to recognize the change."
>    (let ((kws ;; (if (derived-mode-p 'docTeX-mode)
>               ;;     font-latex-doctex-syntactic-keywords
>                 font-latex-syntactic-keywords)) ;; )
> -    (syntax-propertize-via-font-lock kws)))
> +    (let ((func (syntax-propertize-via-font-lock kws)))
> +      (lambda (start end)
> +        (or font-lock-set-defaults (font-lock-set-defaults))
> +        (funcall func start end)))))
>  
>  ;;;###autoload
>  (defun font-latex-setup ()

Derek, can you please report back if the patch above fixes the issue for
you?  TIA.

Best, Arash
Information forwarded to bug-auctex@HIDDEN:
bug#71164; Package auctex. Full text available.

Message received at 71164 <at> debbugs.gnu.org:


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From: Ikumi Keita <ikumi@HIDDEN>
To: Derek Clegg <derek@HIDDEN>, Paul Nelson <ultrono@HIDDEN>
Subject: Re: bug#71164: 14.0.5; Font lock annoyance
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Hi Derek and Paul,

> If I don't turn on font locking when I use AUCTeX, I'm getting
> annoying messages almost every keystroke:

>   Error during redisplay: (internal--syntax-propertize 7526) signaled (error "Font-lock trying to use keywords before setting them up”)

Thanks for your report. I admit AUCTeX isn't good at this point. It
depends on font lock facility to perform syntax propertizing. :-(

>>>>> Paul Nelson <ultrono@HIDDEN> writes:
> Another workaround might be M-: (font-lock-set-defaults).

It seems it does work while font lock itself is still disabled. I
speculate that the current syntax propertize function only needs that
font lock variables are set up. Then I hope the patch below does the
trick.

Derek, can you try it?

Regards,
Ikumi Keita
#StandWithUkraine #StopWarInUkraine
#Gaza #StopMassiveKilling #CeasefireNOW

diff --git a/font-latex.el b/font-latex.el
index ccddd8b1..7a02e3f4 100644
--- a/font-latex.el
+++ b/font-latex.el
@@ -1313,7 +1313,10 @@ triggers Font Lock to recognize the change."
   (let ((kws ;; (if (derived-mode-p 'docTeX-mode)
              ;;     font-latex-doctex-syntactic-keywords
                font-latex-syntactic-keywords)) ;; )
-    (syntax-propertize-via-font-lock kws)))
+    (let ((func (syntax-propertize-via-font-lock kws)))
+      (lambda (start end)
+        (or font-lock-set-defaults (font-lock-set-defaults))
+        (funcall func start end)))))
 
 ;;;###autoload
 (defun font-latex-setup ()
Information forwarded to bug-auctex@HIDDEN:
bug#71164; Package auctex. Full text available.

Message received at 71164 <at> debbugs.gnu.org:


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From: Paul Nelson <ultrono@HIDDEN>
Date: Fri, 24 May 2024 09:17:06 +0200
Message-ID: <CAOA-32Pbpgv8iDhRpWgqKLW+jHr_X4TnZT5ngz0HCgM7E3Z82Q@HIDDEN>
Subject: Re: bug#71164: 14.0.5; Font lock annoyance
To: Derek Clegg <derek@HIDDEN>
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--0000000000002dcc1906192df5ca
Content-Type: text/plain; charset="UTF-8"

Another workaround might be M-: (font-lock-set-defaults).

It seems that font-lock-set-defaults is typically not called in LaTeX-mode
initialization (see the final comment in font-latex-setup, addressing
bug#65912), but instead via global-font-lock-mode, which I guess you've
disabled.

Paul

--0000000000002dcc1906192df5ca
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<div dir=3D"ltr"><div dir=3D"ltr">Another workaround might be M-: (font-loc=
k-set-defaults).</div><div dir=3D"ltr"><br></div><div dir=3D"ltr">It seems =
that font-lock-set-defaults is typically not called in LaTeX-mode initializ=
ation (see the final comment in font-latex-setup, addressing bug#65912), bu=
t instead via global-font-lock-mode, which I guess you&#39;ve disabled.</di=
v><div dir=3D"ltr"><br></div><div dir=3D"ltr">Paul<br></div><div dir=3D"ltr=
"><br></div></div>

--0000000000002dcc1906192df5ca--
Information forwarded to bug-auctex@HIDDEN:
bug#71164; Package auctex. Full text available.

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If I don't turn on font locking when I use AUCTeX, I'm getting annoying =
messages almost every keystroke:

  Error during redisplay: (internal--syntax-propertize 7526) signaled =
(error "Font-lock trying to use keywords before setting them up=E2=80=9D)

This appears to be triggered (at least in some cases) by this code in =
latex.el/LaTeX-verbatim-p:

  (if (eq TeX-install-font-lock 'font-latex-setup)
    ...

This test succeeds (since I haven't changed the value of that variable, =
I just haven't turned on font locking), and then the error happens.

My workaround is to turn on font locking, but I don't always want to do =
that. I don't want to change the default value of =
`TeX-install-font-lock=E2=80=99 since sometimes I *do* want font =
locking.

Thanks,
Derek Clegg

Emacs  : GNU Emacs 29.2 (build 1, aarch64-apple-darwin23.3.0)
of 2024-02-14
Package: 14.0.5

current state:
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
(setq
AUCTeX-date "2024-05-19_09:43:32"
window-system nil
LaTeX-version "2e"
TeX-style-path '("~/.emacs.d/auctex"
		  "/Users/derek/.emacs.d/elpa/auctex-14.0.5/style"
		  "/Users/derek/.emacs.d/auctex/auto"
		  "/Users/derek/.emacs.d/auctex/style" "auto" "style")
TeX-auto-save t
TeX-parse-self t
TeX-master t
TeX-command-list '(("Make" "make N=3D1 %s.pdf" TeX-run-command nil t =
:help
		     "Run =E2=80=9Cmake=E2=80=9D")
		    ("TeX"
		     "%(PDF)%(tex) %(file-line-error) %`%(extraopts) =
%S%(PDFout)%(mode)%' %(output-dir) %t"
		     TeX-run-TeX nil (plain-TeX-mode AmSTeX-mode =
Texinfo-mode)
		     :help "Run plain TeX")
		    ("LaTeX" "%`%l%(mode)%' %T" TeX-run-TeX nil
		     (LaTeX-mode docTeX-mode) :help "Run LaTeX")
		    ("Makeinfo" "makeinfo %(extraopts) %(o-dir) %t"
		     TeX-run-compile nil (Texinfo-mode) :help
		     "Run Makeinfo with Info output")
		    ("Makeinfo HTML"
		     "makeinfo %(extraopts) %(o-dir) --html %t"
		     TeX-run-compile nil (Texinfo-mode) :help
		     "Run Makeinfo with HTML output")
		    ("AmSTeX"
		     "amstex %(PDFout) %`%(extraopts) %S%(mode)%' =
%(output-dir) %t"
		     TeX-run-TeX nil (AmSTeX-mode) :help "Run AMSTeX")
		    ("ConTeXt" "%(cntxcom) --once %(extraopts) =
%(execopts)%t"
		     TeX-run-TeX nil (ConTeXt-mode) :help "Run ConTeXt =
once")
		    ("ConTeXt Full" "%(cntxcom) %(extraopts) =
%(execopts)%t"
		     TeX-run-TeX nil (ConTeXt-mode) :help
		     "Run ConTeXt until completion")
		    ("BibTeX" "bibtex %(O?aux)" TeX-run-BibTeX nil
		     (plain-TeX-mode LaTeX-mode docTeX-mode AmSTeX-mode
		      Texinfo-mode ConTeXt-mode)
		     :help "Run BibTeX")
		    ("Biber" "biber %(output-dir) %s" TeX-run-Biber nil
		     (plain-TeX-mode LaTeX-mode docTeX-mode AmSTeX-mode
		      Texinfo-mode)
		     :help "Run Biber")
		    ("Texindex" "texindex %s.??" TeX-run-command nil
		     (Texinfo-mode) :help "Run Texindex")
		    ("Texi2dvi" "%(PDF)texi2dvi %t" TeX-run-command nil
		     (Texinfo-mode) :help "Run Texi2dvi or Texi2pdf")
		    ("View" "%V" TeX-run-discard-or-function t t :help
		     "Run Viewer")
		    ("Print" "%p" TeX-run-command t t :help "Print the =
file")
		    ("Queue" "%q" TeX-run-background nil t :help
		     "View the printer queue" :visible =
TeX-queue-command)
		    ("File" "%(o?)dvips %d -o %f " TeX-run-dvips t
		     (plain-TeX-mode LaTeX-mode docTeX-mode AmSTeX-mode
		      Texinfo-mode)
		     :help "Generate PostScript file")
		    ("Dvips" "%(o?)dvips %d -o %f " TeX-run-dvips nil
		     (plain-TeX-mode LaTeX-mode docTeX-mode AmSTeX-mode
		      Texinfo-mode)
		     :help "Convert DVI file to PostScript")
		    ("Dvipdfmx" "dvipdfmx -o %(O?pdf) %d" =
TeX-run-dvipdfmx nil
		     (plain-TeX-mode LaTeX-mode docTeX-mode AmSTeX-mode
		      Texinfo-mode)
		     :help "Convert DVI file to PDF with dvipdfmx")
		    ("Ps2pdf" "ps2pdf %f %(O?pdf)" TeX-run-ps2pdf nil
		     (plain-TeX-mode LaTeX-mode docTeX-mode AmSTeX-mode
		      Texinfo-mode)
		     :help "Convert PostScript file to PDF")
		    ("LaTeXMk"
		     "latexmk %(latexmk-out) %(file-line-error) =
%`%(extraopts) %S%(mode)%' %t"
		     TeX-run-format nil (LaTeX-mode docTeX-mode) :help
		     "Run LaTeXMk")
		    ("Glossaries" "makeglossaries %(d-dir) %s" =
TeX-run-command
		     nil
		     (plain-TeX-mode LaTeX-mode docTeX-mode AmSTeX-mode
		      Texinfo-mode)
		     :help "Run makeglossaries to create glossary file")
		    ("Index" "makeindex %(O?idx)" TeX-run-index nil
		     (plain-TeX-mode LaTeX-mode docTeX-mode AmSTeX-mode
		      Texinfo-mode)
		     :help "Run makeindex to create index file")
		    ("upMendex" "upmendex %(O?idx)" TeX-run-index t
		     (plain-TeX-mode LaTeX-mode docTeX-mode AmSTeX-mode
		      Texinfo-mode)
		     :help "Run upmendex to create index file")
		    ("Xindy" "texindy %s" TeX-run-command nil
		     (plain-TeX-mode LaTeX-mode docTeX-mode AmSTeX-mode
		      Texinfo-mode)
		     :help "Run xindy to create index file")
		    ("Check" "lacheck %s" TeX-run-compile nil =
(LaTeX-mode)
		     :help "Check LaTeX file for correctness")
		    ("ChkTeX" "chktex -v6 %s" TeX-run-compile nil =
(LaTeX-mode)
		     :help "Check LaTeX file for common mistakes")
		    ("Spell" "(TeX-ispell-document \"\")" =
TeX-run-function nil
		     t :help "Spell-check the document")
		    ("Clean" "TeX-clean" TeX-run-function nil t :help
		     "Delete generated intermediate files")
		    ("Clean All" "(TeX-clean t)" TeX-run-function nil t =
:help
		     "Delete generated intermediate and output files")
		    ("Other" "" TeX-run-command t t :help
		     "Run an arbitrary command")
		    )
)
Acknowledgement sent to Derek Clegg <derek@HIDDEN>:
New bug report received and forwarded. Copy sent to bug-auctex@HIDDEN. Full text available.
Report forwarded to bug-auctex@HIDDEN:
bug#71164; Package auctex. Full text available.
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