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On Emacs, I used to have "C-c C-e" as a shortcut to "open an environment with begin and end". I changed my computer and reinstalled emacs: Mac OS 10.9 and Emacs 24.3, and now in LaTeX mode, "C-c C-e" is only closing an already opened environment. (it seems that "C-c C-t" is doing roughly the same as before but not exactly)

Similarly, "C-c C-s" is not opening a new section anymore.

Finally, "C-c C-;" used to comment region, but is not working anymore.

Any idea on how I could come back to the previous behaviour? (I don't know the name of the commands and I fail to rebind C-c C-e...)

Thanks!

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2 Answers 2

up vote 5 down vote accepted

Earlier you used AUCTeX, and now you use the standard TeX modes in Emacs, so you have to install AUCTeX yourself.

AUCTeX has never been the default TeX modes in Emacs.

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ok that's it, thanks! –  Sylvain May 4 at 13:59
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Are you using stock gnu emacs? Then see pst's answer. You may want to have a look at aquamacs, an emacs version tailored for Mac OS X. If memory serves me right, it includes auctex

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Yes, Aquamacs uses AUCTeX as default TeX mode. –  giordano May 4 at 13:00
    
Perfect I'll install Aquamacs then! Thanks –  Sylvain May 4 at 13:59
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