Package: auctex;
Reported by: Florent Rougon <f.rougon <at> free.fr>
Date: Sat, 7 Sep 2019 21:38:01 UTC
Severity: normal
Done: Arash Esbati <arash <at> gnu.org>
Bug is archived. No further changes may be made.
Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):
From: Florent Rougon <f.rougon <at> free.fr> To: bug-auctex <at> gnu.org Subject: 2019-08-31; Error when `TeX-fold-hide-item' acts on evaporated overlays Date: Sat, 07 Sep 2019 23:37:14 +0200
[Message part 1 (text/plain, inline)]
Dear AUCTeX maintainers,
First of all, thank you very much for your great work on AUCTeX!
I found a problem when trying to fold comments in a .dtx file (which
seems very useful to me given the verbosity of the .dtx format). It
manifests with the following backtrace:
Debugger entered--Lisp error: (wrong-type-argument integer-or-marker-p nil)
TeX-fold-overfull-p(nil nil "…")
TeX-fold-hide-item(#<overlay in no buffer>)
TeX-fold-region-comment(1 356)
TeX-fold-region(1 356)
TeX-fold-buffer()
funcall-interactively(TeX-fold-buffer)
call-interactively(TeX-fold-buffer nil nil)
command-execute(TeX-fold-buffer)
and can be reproduced this way:
1. Configure AUCTeX to fold comments:
(setq TeX-fold-type-list '(comment))
2. Visit a buffer containing the attached 'test.dtx' file.
3. Activate TeX-fold-mode (either with `C-c C-o C-f' or from the menus:
LaTeX -> Show/Hide -> Fold Mode).
4. Fold everything in the current buffer according to
`TeX-fold-type-list'. This can be done with `C-c C-o C-b'.
Alternatively, you can trigger the same bug by selecting a region in
test.dtx that is large enough to contain 'abc%' and 'def', then do
`C-c C-o C-r' to fold all configured things in the region.
What happens is that when a comment to be folded consists of only the
percent sign, the overlay created by `TeX-fold-make-overlay' immediately
evaporates because its start and end positions are equal. This causes an
error when `TeX-fold-hide-item' calls `TeX-fold-overfull-p`, which tries
to (goto-char) to the overlay end.
The next email in this bug report will contain a patch ready to apply
using:
git am some-file
after you have saved that email in mbox format to 'some-file'.
Thanks!
Emacs : GNU Emacs 26.1 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.24.10)
of 2019-07-22, modified by Debian
Package: 2019-08-31
current state:
==============
(setq
AUCTeX-date "2019-08-31"
window-system 'x
LaTeX-version "2e"
TeX-style-path '("auctex-style" "auctex-auto" "/home/flo/.local/var/auctex"
"/home/flo/lisp/manual-installs/auctex/style"
"/home/flo/.emacs.d/auctex/auto"
"/home/flo/.emacs.d/auctex/style")
TeX-auto-save t
TeX-parse-self t
TeX-master t
TeX-command-list '(("TeX"
"%(PDF)%(tex) %(file-line-error) %`%(extraopts)
%S%(PDFout)%(mode)%' %t"
TeX-run-TeX nil (plain-tex-mode ams-tex-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) %t" TeX-run-compile nil
(texinfo-mode) :help "Run Makeinfo with Info output")
("Makeinfo HTML" "makeinfo %(extraopts) --html %t"
TeX-run-compile nil (texinfo-mode) :help
"Run Makeinfo with HTML output")
("AmSTeX" "amstex %(PDFout) %`%(extraopts) %S%(mode)%' %t"
TeX-run-TeX nil (ams-tex-mode) :help "Run AMSTeX")
("ConTeXt"
"%(cntxcom) --once --texutil %(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 %s" TeX-run-BibTeX nil
(plain-tex-mode latex-mode doctex-mode ams-tex-mode
texinfo-mode context-mode)
:help "Run BibTeX")
("Biber" "biber %s" TeX-run-Biber nil
(plain-tex-mode latex-mode doctex-mode ams-tex-mode
texinfo-mode)
:help "Run Biber")
("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 ams-tex-mode
texinfo-mode)
:help "Generate PostScript file")
("Dvips" "%(o?)dvips %d -o %f " TeX-run-dvips nil
(plain-tex-mode latex-mode doctex-mode ams-tex-mode
texinfo-mode)
:help "Convert DVI file to PostScript")
("Dvipdfmx" "dvipdfmx %d" TeX-run-dvipdfmx nil
(plain-tex-mode latex-mode doctex-mode ams-tex-mode
texinfo-mode)
:help "Convert DVI file to PDF with dvipdfmx")
("Ps2pdf" "ps2pdf %f" TeX-run-ps2pdf nil
(plain-tex-mode latex-mode doctex-mode ams-tex-mode
texinfo-mode)
:help "Convert PostScript file to PDF")
("Glossaries" "makeglossaries %s" TeX-run-command nil
(plain-tex-mode latex-mode doctex-mode ams-tex-mode
texinfo-mode)
:help "Run makeglossaries to create glossary\n file")
("Index" "makeindex %s" TeX-run-index nil
(plain-tex-mode latex-mode doctex-mode ams-tex-mode
texinfo-mode)
:help "Run makeindex to create index file")
("upMendex" "upmendex %s" TeX-run-index t
(plain-tex-mode latex-mode doctex-mode ams-tex-mode
texinfo-mode)
:help "Run upmendex to create index file")
("Xindy" "texindy %s" TeX-run-command nil
(plain-tex-mode latex-mode doctex-mode ams-tex-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")
("Dvips" "dvips %d -o %f" TeX-run-command nil nil)
("View with xdvi" "%v" TeX-run-silent nil nil)
("View with xdvi -paper a4r" "%v -paper a4r"
TeX-run-silent
nil nil)
("View with the default PostScript viewer" "see %f"
TeX-run-discard nil nil)
("View with gv" "gv %f" TeX-run-discard nil nil)
("View with xpdf" "xpdf %s.pdf" TeX-run-silent nil nil)
("View with okular" "okular %s.pdf" TeX-run-silent nil nil))
)
--
Florent
[test.dtx (text/x-tex, attachment)]
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