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?
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.