问题
Using Emacs + Common Lisp (SBCL) + Slime, is there a quick way to jump to the definition of a function (defun ...) without typing (find-function) the name of the function? I am looking for an similar solution as often provided in Eclipse: Strg + (left-mouse-click on function call).
回答1:
In Emacs:
With point on the function whose definition you want to visit, hit C-x 5 F (find-function-other-frame).
You can also bind find-function, find-function-other-window, or find-function-other-frame to a mouse button action.
You mention Strg + (left-mouse-click on function call), for instance. Dunno what Strg is here, but you can easily bind [mouse-1] or [down-mouse-1] to a command that checks the symbol at the click position, and if it is a defined function calls find-function for it, and if it is not has the usual [mouse-1] or [down-mouse-1] behavior.
Personally, I wouldn't want such behavior, but it is easy to achieve in Emacs. For example:
(defun my-find-func-mouse (event)
(interactive "e")
(let ((fn (save-excursion
(goto-char (posn-point (event-end event)))
(function-called-at-point))))
(unless (fboundp fn) (error "No function here"))
(find-function-do-it fn nil 'switch-to-buffer-other-window)))
(global-set-key [C-down-mouse-1] nil)
(global-set-key [C-mouse-1] #'my-find-func-mouse)
回答2:
You can use the keyboard. Usually 'm-.' or 'esc-.' in Emacs. The cursor must be on the symbol.
回答3:
The usual way is to create a TAGS file using etags:
$ find . -type f -iname "*.lisp*" | etags -
Then, do M-x visit-tags-table and navigate to the TAGS file. After the tags are loaded, you can simply do M-. with point on function and it will open in the current buffer.
Also, you can use M-* to go back to where you were before.
If you're using projectile, you can simply keep your TAGS file in the project root and you won't need to run M-x visit-tags-table. Projectile will load the tags table automatically when you first press M-.
来源：https://stackoverflow.com/questions/30802346/jump-to-function-definition-in-emacs-by-mouse-click