Emacs, using the excellent arc.el and inferior-arc.el files in the REPL. Woo for in-editor REPLs and send-to-REPL commands. Not to mention automatic indentation.
For some reason, auto-indentation doesn't work for me. And also, I can't use the REPL unless I start emacs in the directory where arc is. Any advice would be appreciated.
Perhaps you could give example pieces of a .emacs files?
(autoload 'run-arc "inferior-arc" "Run an inferior Arc process, input and output via buffer *arc*." t)
(autoload 'arc-mode "arc" "Major mode for editing Arc." t)
(add-to-list 'auto-mode-alist '("\\.arc$" . arc-mode))
I also have arc.el and inferior-arc.el in my loadpath.
As for starting the REPL, inferior-arc.el assumes that there's an "arc" program in your path. I did this by adding a symlink pointing to my arc.sh, but you could also customize the arc-program-name variable.
And I'm on Windows so I can't use arc.sh :( ... I tried to make up for it by using arc-exe instead, but arc-exe won't load if it isn't in the same directory as ac.scm. (I think this is because the require-namespace isn't done at compile time like normal requires are.)
You should be able to set up a simple CMD script to start Arc on Windows. I think. I don't actually know that much about Windows. At the very least, you can set arc-program-name to be a manual invocation of MzScheme.
Oh, thats what you mean by auto-indenting. I was expecting it to act like lisp mode where it indents when I press enter (which would be nice to have if someone could manage it).
My problem so far is that when I try to load arc, because the current working directory is not the arc directory, even if it loads as.scm correctly, it can't load ac.scm or any *.arc files. I could set it up to load something like "mzscheme -mf C:\...\arc\as.scm" but I don't know how to make mzscheme look for other arc files in that directory as well.
The standard Emacs indentation behavior is to indent on TAB rather than newline. This is also the default for Lisp-mode, as far as I know. You can rebind this by setting RET to comment-indent-new-line, though.
You need to add some argument to mzscheme to get it to cd into the arc directory. Check the args passed in arc.sh.
Ok, thanks. I hacked a batch file and put it in my PATH so I can start arc from emacs. (Setting arc-program-name failed because run-arc wouldn't respect the quotes around the executable name.)
