From: Vasilij Karpow <malc@boblycat.com>
To: caml-list@inria.fr
Subject: [Caml-list] Format
Date: Sun, 6 May 2001 19:42:31 +0200 [thread overview]
Message-ID: <20010506194231.A6460@yr> (raw)
I wonder if anyone can teach me properly outputing values of
following type:
type sexp =
| Slist of (string * lsexp)
| Satts of lsexp
| Sbody of lsexp
| Sattr of (string * string)
| Sdata of string
and lsexp = sexp list.
Even default(and hence dumb) interactive ocaml toplevel printer does
it better than my own attempts of abusing Format.
let rec print_sexp pff = function
| Slist (n, l) -> fprintf pff "@ @,@[<1>(%s %a)@]" n print_lsexp l
| Sbody b -> print_lsexp pff b
| Satts a -> fprintf pff "@[(%a)@]" print_lsexp a
| Sattr (n, a) -> fprintf pff "@[%s: \"%s\"@ @]" n (attr_value a)
| Sdata s -> fprintf pff "@ \"%s\"" (String.escaped s)
and print_lsexp pff l = List.iter (print_sexp pff) l
I must confess though, i do not fully understand what im doing here.
So please anyone.
P.S. Oh btw. this is NOT an assignment ;)
--
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