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.

------------------------------------------------------------------------

When the file is a .tex file, I can use C-c ; to comment and uncomment

the \begin{equation} environment.

Once the file is a Noweb version (extension .rnw), if I use C-c ; to

comment or uncomment this environment it crashes emacs completely.

I've tried other environments such as itemize or figure and these work

fine.

Any thoughts?

Shawn Way, PE

Minimal Example:

==========================

\documentclass{article}

\begin{document}

\begin{equation}

  \label{eq:hxvol2}

  \begin{aligned}

    Vol &= & n\ \times L\ \times\ \frac{\pi D^2}{4}\\

  \end{aligned}

\end{equation}

\end{document}

Emacs  : GNU Emacs 25.0.91.1 (x86_64-w64-mingw32)

of 2016-02-14

Package: 11.89.4

current state:

==============

(setq

AUCTeX-date "2016-05-22"

window-system 'w32

LaTeX-version "2e"

TeX-style-path '("~/.emacs.d/auctex"

                                  "c:/Users/sway/AppData/Roaming/.emacs.d/elpa/auctex-11.89.4/style" "c:/Users/sway/AppData/Roaming/.emacs.d/auctex/auto" "C:/localtexmf/tex/latex/MECO/auto" "c:/localtexmf/tex/latex/MECO" "auto" "style")

TeX-auto-save t

TeX-parse-self t

TeX-master nil

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 t :help

                                     "Run BibTeX")

                                    ("Biber" "biber %s" TeX-run-Biber nil t :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 t :help

                                     "Generate PostScript file")

                                    ("Dvips" "%(o?)dvips %d -o %f " TeX-run-dvips nil t :help

                                     "Convert DVI file to PostScript")

                                    ("Dvipdfmx" "dvipdfmx %d" TeX-run-dvipdfmx nil t :help

                                     "Convert DVI file to PDF with dvipdfmx")

                                    ("Ps2pdf" "ps2pdf %f" TeX-run-ps2pdf nil t :help

                                     "Convert PostScript file to PDF")

                                    ("Index" "makeindex %s" TeX-run-index nil t :help

                                     "Run makeindex to create index file")

                                    ("Xindy" "texindy %s" TeX-run-command nil t :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")

                                    ("Sweave" "R CMD Sweave %s" TeX-run-command nil

                                     (latex-mode) :help "Run Sweave")

                                    ("LatexSweave" "%l %(mode) %s" TeX-run-TeX nil

                                     (latex-mode) :help "Run Latex after Sweave")

                                    )

)

Thank you kindly,

Shawn Way, PE