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(*
This file is part of licht.
licht is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
licht is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with licht. If not, see <http://www.gnu.org/licenses/>.
*)
type 'a t = UTF8.Buffer.buffer -> unit
type 'a obs = UTF8.Buffer.buffer -> unit
let str s buffer =
UTF8.Buffer.add_string buffer s
let num n buffer =
if DataType.Num.is_integer n then
DataType.Num.to_int n
|> string_of_int
|> UTF8.from_utf8string
|> UTF8.Buffer.add_string buffer
else
let f = DataType.Num.to_float n
and to_b = UTF8.Format.formatter_of_buffer buffer in
ignore @@ UTF8.Format.fprintf to_b "%.2f" f;
Format.pp_print_flush to_b ()
let date n buffer =
let y, m, d = DataType.Date.date_from_julian_day n in
UTF8.Printf.bprintf buffer "%d/%d/%d" y m d
let bool b buffer =
UTF8.Printf.bprintf buffer "%B" b
let observe elem buffer = elem buffer
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