Source file YojsonCommon.ml

(*
Copyright (c) 2010-2012, Martin Jambon
All rights reserved.

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 * Neither the name of  nor the names of its contributors may be used to
   endorse or promote products derived from this software without specific
   prior written permission.

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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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----

Vendored!

MlFront_Thunk has its own JSON parsing for nice error handling.
Yojson has pretty printing.

Edits:
- Removed .mli unless necessary, and everything except [Safe] printing.
- Prefixed modules with "Yojson", with aliases using `open struct ... end`.
- Code formatted.
 *)

let version = "3.0.0"

exception Json_error of string

let json_error s = raise (Json_error s)

exception End_of_array
exception End_of_object
exception End_of_input

type lexer_state = {
  buf : Buffer.t; (* Buffer used to accumulate substrings *)
  mutable lnum : int; (* Current line number (starting from 1) *)
  mutable bol : int;
      (* Absolute position of the first character of the current line
         (starting from 0) *)
  mutable fname : string option; (* Name describing the input file *)
}

module Lexer_state = struct
  type t = lexer_state = {
    buf : Buffer.t;
    mutable lnum : int;
    mutable bol : int;
    mutable fname : string option;
  }
end

let init_lexer ?buf ?fname ?(lnum = 1) () =
  let buf = match buf with None -> Buffer.create 256 | Some buf -> buf in
  { buf; lnum; bol = 0; fname }