A latex environment looks like this:


Is there a command to jump back-and-forth between matching \begin and \end commands? (One cannot simply use a regex search because environments can be nested)


LaTeX-find-matching-begin and LaTeX-find-matching-end functions do this.

   AUCTeX offers keyboard shortcuts for moving point to the beginning
and to the end of the current environment.
 -- Command: LaTeX-find-matching-begin
     ('C-M-a') Move point to the '\begin' of the current environment.
 -- Command: LaTeX-find-matching-end
     ('C-M-e') Move point to the '\end' of the current environment.
  • It should be noted that C-M-a and C-M-e are bound to beginning-of-defun and end-of-defun resp. in most modes and they are available in every mode, not just LaTeX-mode. They are supposed to do the "right" thing in each case: e.g. C-M-a moves to the beginning of the environment in LaTeX-mode, the beginning of a function in C mode, the beginning of a defun (doh!) in emacs-lisp-mode and so on.
    – NickD
    Nov 22 at 23:17

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