[Caml-list] What is the right way to configure Tuareg to get the same indentation as in Batteries Included?

["Matej Košík" <mail@matej-kosik.net>]

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Hi,

Tuareg and indentation does not work for me very well.

I am trying to figure out how should I configure it so that I get the same indentation behavior as is used in Batteries Included.

One (of several) problem is with the or-patterns in match-expressions.

Here is the original sample:
(behavior I like)

  (* https://github.com/ocaml-batteries-team/batteries-included/blob/e069e28678a0d15d338721e1ff5e480fe0ad26c5/src/batComplex.ml#L82-L83 *)

  match BatEnum.peek enum with
  | None -> {re; im = multiplier}
  | Some (Kwd ".")
  | Some (Kwd "*") ->
    BatEnum.junk enum;
    parse_im ~multiplier re
  | Some _token ->
    parse_im ~multiplier re

However, Tuareg, in my currenct configuration does instead this:

  match BatEnum.peek enum with
  | None -> {re; im = multiplier}
  | Some (Kwd ".")
    | Some (Kwd "*") ->
     BatEnum.junk enum;
     parse_im ~multiplier re
  | Some _token ->
     parse_im ~multiplier re

I am using:
- Ocaml 4.06.0+beta2
- Tuareg 2.0.10 (installed via OPAM)
and my ~/.emacs file contains just this:

  (load "~/.opam/4.06.0+beta2/share/emacs/site-lisp/tuareg-site-file")
  (setq tuareg-indent-align-with-first-arg t)
  (setq tuareg-match-patterns-aligned t)

which is, I guess, wrong/insufficient.

I'd be grateful for any hints concerning how to fix/complete the configuration in order to get indentation behavior consistent with Ocaml Batteries.
Is that possible (with Tuareg or whatever other tool)?

---

Matej


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