External lisp indenter code

Question

I have a lisp code / scheme similar to that I want to indent. I was looking for tools like GNU indent , but I could not find the command line utility / script. There are many of them for C / C ++ / Java, but for some reason I can not find any option for the lisp / scheme, someone can tell me about any such indentation tools, if available.

Thanks.

Answer 1

You can use emacs in batch mode. For example, you can create the indent.el file

 (defun my/indent-file (fPath) (let ((buffer (find-file fPath))) (message (concat "indenting file " fPath)) (indent-region (point-min) (point-max)) (save-buffer) (kill-buffer buffer))) (mapcar 'my/indent-file argv) 

and then call emacs like this to postpone a bunch of files (note that it will work for any emacs language that can recognize and learn how to backtrack):

 emacs --load indent.el --batch MY_LISP_FILES 

See this page for more information on idiomatic ways to use emacs for batch processing.

Edit

Here is a single-line file that works with only one file, but does not use the argv variable (be careful: the order of the arguments is important):

 emacs --batch MY_FILE --eval '(indent-region (point-min) (point-max))' -f 'save-buffer' 

Answer 2

Here is my ambitious attempt to create a decent batch mode indenter, codenamed yasi (another s-expression indenter). If for some reason it does not defeat you (this is about 800 lines), you can return to lispindent2.lisp , which is basically the original Dorai indenter ( lispindent.lisp ) with some settings here and there. lispindent2.lisp is a batch mode indenter that is as thin as the original (about 65 lines added), but the indentation is pretty.

Answer 3

Doray Sitharam has the scripts scmindent.scm and lispindent.lisp on this website that will work for this purpose. They were originally designed to let you insert Lisp indent code into vi.

Answer 4

If you are using vim, the this message should provide you with a way to run the auto indent command in all files. And if you want (IMO) really good indentation in lisp files in vim, I recommend loading slimv and swank server before running this command.