Question for emacs users

[mongrol]

Hi all,
Normally I do my C++ dev in Vim and used Emacs for orgmode only. Now I'm moving to Lua I fancy using Emacs for this. I have lua-mode installed and the love-mode as well. I can run my code using C-! "love ./" but any debug shows up printed graphically in the love window. I'd much rather it was in a emacs debug type of window where I can use it to skip to the error.

How do other Emacs users do their love dev?

[bartbes]

I'm not an emacs user, so I don't know exactly what you want. I do know, however, that all errors are printed on the terminal too, so if you catch the output of love, you should at least have it in emacs..

[the_leg]

I use Compilation mode to capture the output and hyperlink the error messages to the source code. To enter this mode, you type 'M-x compile'. You'll be prompted to enter the compile command (or accept the default 'make' command).

Here's part of my .emacs that sets this up. I bind C-x C-k to enter this mode.

Code: Select all

(global-set-key "\C-x\C-k" 'compile)
(add-hook 'lua-mode-hook
	  (lambda ()
	    (if  (file-exists-p "main.lua")
		(progn 
		  (set (make-local-variable 'compile-command) "love . ")
		  (add-to-list 'compilation-error-regexp-alist 'love t)
		  (add-to-list 'compilation-error-regexp-alist-alist
			       '(love "^Error: Syntax error: \\(.*?\\):\\([0-9]+\\):.*$" 1 2) t))
       (set (make-local-variable 'compile-command)
                  (concat "lua " (file-name-nondirectory buffer-file-name))))))

The above checks if main.lua exists in your current dir, and if so sets the compile command to be 'love .', otherwise it sets the compile command to 'lua <current-buffer-file-name>'. The regular expression is needed to handle LOVE's error message format.

I also use flymake-lua. This checks the syntax of your Lua code as you type and highlights any errors. Here's how I set that up:

Code: Select all

(require 'flymake-lua)
(add-hook 'lua-mode-hook 'flymake-lua-load)

Let me know if you have any questions.

[mongrol]

Great! Thanks very much.

[ejmr]

I am also a long-term Emacs user and started this project some time ago to help with LÖVE development:

https://github.com/ejmr/love-minor-mode

Please feel free to suggest any additions that may be useful; I will admit it does not do too much at the moment.