Insert starred environment or command in AUCTeX

Question

Simple question today – I hope the answer is equally simple.

From TextMate I am used to a keyboard shortcut that changes the current environment or command to its starred version. Is there something similar in Emacs/AUCTeX?

Answer 1

As noted by Kilian Foth you can write a function to modify environments in such a way:

(defun LaTeX-star-environment ()
  "Convert the current environment to its starred version."
  (interactive)
  ;; Add a star to the current environment.
  (LaTeX-modify-environment (concat (LaTeX-current-environment) "*")))

This function will keep adding stars (*) to the current environment if you repeat the command.

If you instead want a function to star the current environment if it is not already starred and to unstar it if it is already starred you can use the following function:

(defun LaTeX-star-environment-dwim ()
  "Convert between the starred and the not starred version of the current environment."
  (interactive)
  ;; If the current environment is starred.
  (if (string-match "\*$" (LaTeX-current-environment))
      ;; Remove the star from the current environment.
      (LaTeX-modify-environment (substring (LaTeX-current-environment) 0 -1))
    ;; Else add a star to the current environment.
    (LaTeX-modify-environment (concat (LaTeX-current-environment) "*"))))

You can use either function by including it in your .emacs and doing M-x LaTeX-star-environment or LaTeX-star-environment-dwim respectively or by binding the function to a key.

Answer 2

Apparently not, but it would be easy to write a tiny function to do that by using LaTeX-current-environment and LaTeX-modify-environment. (I don't have an emacs with me right now, sorry.)