package logs

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Logging infrastructure for OCaml

Install 

dune-project
 Dependency

erratique.ch Edit opam file Versions (3)

Authors

  1. T
    The logs programmers

Maintainers

  1. Daniel Bünzli

Sources

logs-0.7.0.tbz
sha256=86f4a02807eb1a297aae44977d9f61e419c31458a5d7b23c6f55575e8e69d5ca
md5=2bf021ca13331775e33cf34ab60246f7

doc/src/logs.browser/logs_browser.ml.html

Source file logs_browser.ml

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(*---------------------------------------------------------------------------
   Copyright (c) 2015 The logs programmers. All rights reserved.
   Distributed under the ISC license, see terms at the end of the file.
   logs v0.7.0
  ---------------------------------------------------------------------------*)

(* Console reporter *)

open Js_of_ocaml

let console_obj = Js.Unsafe.variable "console"
let console : Logs.level -> string -> unit =
fun level s ->
  let meth = match level with
  | Logs.Error -> "error"
  | Logs.Warning -> "warn"
  | Logs.Info -> "info"
  | Logs.Debug -> "debug"
  | Logs.App -> "log"
  in
  Js.Unsafe.meth_call console_obj meth [| Js.Unsafe.inject (Js.string s) |]

let ppf, flush =
  let b = Buffer.create 255 in
  let flush () = let s = Buffer.contents b in Buffer.clear b; s in
  Format.formatter_of_buffer b, flush

let console_report src level ~over k msgf =
  let k _ = console level (flush ()); over (); k () in
  msgf @@ fun ?header ?tags fmt ->
  match header with
  | None -> Format.kfprintf k ppf ("@[" ^^ fmt ^^ "@]@.")
  | Some h -> Format.kfprintf k ppf ("[%s] @[" ^^ fmt ^^ "@]@.") h

let console_reporter () = { Logs.report = console_report }

(*---------------------------------------------------------------------------
   Copyright (c) 2015 The logs programmers

   Permission to use, copy, modify, and/or distribute this software for any
   purpose with or without fee is hereby granted, provided that the above
   copyright notice and this permission notice appear in all copies.

   THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
   WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
   MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
   ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
   WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
   ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
   OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  ---------------------------------------------------------------------------*)