Camlp4 parses Ocaml source, and can reprint it. You can't customize the output much, it's defined by the pretty-printer (but you could write your own pretty-printer), and it probably doesn't correspond to your own OCaml style. If you're only looking for a way to normalize indentation, you may be happy with that.
camlp4o file.ml (* outputs in the console *) camlp4o file.ml -o output.ml Note that piping/redirection `camlp4o file.ml > foo` doesn't work as camlp4o sends a marshalled AST by default. An issue with camlp4 is that it can sometimes move comments a bit: the placement of comments in the reformatted source is approximative *with respect to whitespace* (you sometimes have a blank inserted between a phrase and the comment). That is not really an issue for the human reader, but it tends to confuse `ocamldoc`, which relies on whitespace heuristics to know which phrase a comment documents. You should think twice if you wish to use both camlp4 and ocamldoc at the same time. If you wanted to write your own pretty-printer (as a Camlp4 printer, or based on your own or another parser), you could be interested in: - The [Pprint] module of François Pottier, an interesting adaptation of Daan Leijen's Haskell PPrint library http://pauillac.inria.fr/~fpottier/ - The [easy-format] library of Martin Jambon http://martin.jambon.free.fr/easy-format.html - The [Format] module of the standard library http://caml.inria.fr/resources/doc/guides/format.en.html I have only used Format and Pprint, and prefer Pprint (simpler to understand and use). On Fri, Dec 23, 2011 at 9:04 AM, Mihamina Rakotomandimby <[email protected]> wrote: > On 12/23/2011 10:57 AM, haihao shen wrote: >> >> Hi All, >> >> Does anyone know whether there is some tools or scripts to format ocaml >> code in a unified format? > > > If you mean having a "good" indentation, opening it in Emacs+tuareg-mode > then indenting will work fine. > > Note that it's a file by file way and it doesn not split uselessly long > lines to shorter ones: just indentation. Or I dont know how to fully use > tuareg-mode ;-). > > For a large set of files, I don't know how to ease the work. > > > -- > RMA. > > -- > Caml-list mailing list. Subscription management and archives: > https://sympa-roc.inria.fr/wws/info/caml-list > Beginner's list: http://groups.yahoo.com/group/ocaml_beginners > Bug reports: http://caml.inria.fr/bin/caml-bugs > -- Caml-list mailing list. Subscription management and archives: https://sympa-roc.inria.fr/wws/info/caml-list Beginner's list: http://groups.yahoo.com/group/ocaml_beginners Bug reports: http://caml.inria.fr/bin/caml-bugs
