65 lines
2.2 KiB
OCaml
65 lines
2.2 KiB
OCaml
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(* Copyright (C) 2019--2022 Petter A. Urkedal <paurkedal@gmail.com>
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*
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* This library is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or (at your
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* option) any later version, with the LGPL-3.0 Linking Exception.
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*
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* This library is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
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* License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* and the LGPL-3.0 Linking Exception along with this library. If not, see
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* <http://www.gnu.org/licenses/> and <https://spdx.org>, respectively.
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*)
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open Printf
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let datetuple_of_iso8601 s =
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if String.length s = 10 && s.[4] = '-' && s.[7] = '-' then
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try
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(int_of_string (String.sub s 0 4),
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int_of_string (String.sub s 5 2),
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int_of_string (String.sub s 8 2))
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with Failure _ ->
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failwith "Caqti_platform.datetuple_of_iso8601"
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else
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failwith "Caqti_platform.datetuple_of_iso8601"
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let iso8601_of_datetuple (y, m, d) =
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sprintf "%04d-%02d-%02d" y m d
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let string_of_rfc3339_error ~input err =
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let buf = Buffer.create 64 in
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let ppf = Format.formatter_of_buffer buf in
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Ptime.pp_rfc3339_error ppf err;
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Format.fprintf ppf " in value %S." input;
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Format.pp_print_flush ppf ();
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Buffer.contents buf
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let ptime_of_rfc3339_utc s =
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let n = String.length s in
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let s' =
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if n < 13 then s else
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if s.[n - 1] = 'Z' then s else
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if s.[n - 3] = '+' || s.[n - 3] = '-' then s ^ ":00" else
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if s.[n - 6] = '+' || s.[n - 6] = '-' then s else
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s ^ "Z"
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in
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(match Ptime.of_rfc3339 s' with
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| Ok (t, _, _) -> Ok t
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| Error (`RFC3339 (_, err)) ->
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Error (string_of_rfc3339_error ~input:s' err))
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let pdate_of_iso8601 s =
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(match Ptime.of_date (datetuple_of_iso8601 s) with
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| exception Failure _ ->
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Error (sprintf "Cannot parse date %S." s)
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| None ->
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Error (sprintf "Date %s is out of range." s)
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| Some pdate -> Ok pdate)
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let iso8601_of_pdate x = iso8601_of_datetuple (Ptime.to_date x)
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