Remember to cover the basics, that is, what you expected to happen and what in fact did happen.
Be sure to consult the FAQ section in the manual before submitting a bug report. In addition check if the bug is reproducable with an up-to-date version of AUCTeX. So please upgrade to the version available from http://www.gnu.org/software/auctex/ if your installation is older than the one available from the web site. If the bug is triggered by a specific (La)TeX file, you should try to produce a minimal sample file showing the problem and include it in your report. Your report will be posted for the auctex package at the GNU bug tracker. Visit http://debbugs.gnu.org/cgi/pkgreport.cgi?pkg=auctex to browse existing AUCTeX bugs. ------------------------------------------------------------------------ The LaTeX package doc, that is usually used via class ltxdoc for the documentation part of dtx-files, declares ^^A as comment character. But auctex's doctex mode fails scanning for balanced {...} pairs, if } is immediately followed by ^^A. You can test it, with this example file: --- test.dtx --- % \begin{macro}{\test}^^A This is an official dtx-comment % This does not work. Try to double-click to the closing brace before the % comment and you will get: |Scan error: "Unbalanced parantheses", 22, 22| % \end{macro} % % \begin{macro}{\test}%^^A This is a workaround for an official dtx-comment % This does work, but the \% after the closing brace is not wanted. % \end{macro} % \endinput % Local Variables: % mode: doctex % TeX-master: t % End: --- end of file --- Emacs : GNU Emacs 26.1 (build 1, x86_64-suse-linux-gnu, GTK+ Version 3.24.4) Package: 12.1 current state: ============== (setq AUCTeX-date "2017-12-10" window-system 'x LaTeX-version "2e" TeX-style-path '("/usr/share/emacs/site-lisp/auctex/auto" "/usr/share/emacs/site-lisp/auctex/style" "/home/mjk/.emacs.d/auctex/auto" "/home/mjk/.emacs.d/auctex/style" "auto" "style") TeX-auto-save t TeX-parse-self t TeX-master t TeX-command-list '(("biber" "biber %s.bcf" TeX-run-BibTeX nil t) ("TeX" "%(PDF)%(tex) %`%S%(PDFout)%(mode)%' %t" TeX-run-TeX nil (plain-tex-mode texinfo-mode ams-tex-mode) :help "Run plain TeX") ("LaTeX" "%`%l%(mode)%' %t" TeX-run-TeX nil (latex-mode doctex-mode) :help "Run LaTeX") ("Makeinfo" "makeinfo %t" TeX-run-compile nil (texinfo-mode) :help "Run Makeinfo with Info output") ("Makeinfo HTML" "makeinfo --html %t" TeX-run-compile nil (texinfo-mode) :help "Run Makeinfo with HTML output") ("AmSTeX" "%(PDF)amstex %`%S%(PDFout)%(mode)%' %t" TeX-run-TeX nil (ams-tex-mode) :help "Run AMSTeX") ("ConTeXt" "texexec --once --texutil %(execopts)%t" TeX-run-TeX nil (context-mode) :help "Run ConTeXt once") ("ConTeXt Full" "texexec %(execopts)%t" TeX-run-TeX nil (context-mode) :help "Run ConTeXt until completion") ("BibTeX" "bibtex %s" TeX-run-BibTeX nil t :help "Run BibTeX") ("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-command t t :help "Generate PostScript file") ("Index" "makeindex %s" TeX-run-command nil t :help "Create index file") ("Check" "lacheck %s" TeX-run-compile nil (latex-mode) :help "Check LaTeX file for correctness") ("Spell" "(TeX-ispell-document \"\")" TeX-run-function nil t :help "Spell-check the document")
% \begin{macro}{\test}^^A This is an official dtx-comment
% This does not work. Try to double-click to the closing brace before the
% comment and you will get: |Scan error: "Unbalanced parantheses", 22, 22|
% \end{macro}
%
% \begin{macro}{\test}%^^A This is a workaround for an official dtx-comment
% This does work, but the \% after the closing brace is not wanted.
% \end{macro}
% \endinput
% Local Variables:
% mode: doctex
% TeX-master: t
% End:
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