Source file `piqi_json_parser.ml`

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# 48 "piqilib/piqi_json_parser.mll"
 
  module C = Piqi_common
  open C.Std

  type json = Piqi_json_type.json

  module Lexing =
    (*
      We override Lexing.engine in order to avoid creating a new position
      record each time a rule is matched.
      This reduces total parsing time by about 31%.
    *)
  struct
    include Lexing

    external c_engine : lex_tables -> int -> lexbuf -> int = "caml_lex_engine"

    let engine tbl state buf =
      let result = c_engine tbl state buf in
      (*
      if result >= 0 then begin
	buf.lex_start_p <- buf.lex_curr_p;
	buf.lex_curr_p <- {buf.lex_curr_p
			   with pos_cnum = buf.lex_abs_pos + buf.lex_curr_pos};
      end;
      *)
      result
  end

  open Printf
  open Lexing


  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 *)

    mutable utf8_delta : int;
      (* bol position correction for multibyte utf8 encoding *)

    mutable loc : Piqloc.loc list;
      (* the list of JSON element locations in reverse order *)
  }


  let location v lexbuf =
    let offs = lexbuf.lex_abs_pos in
    let bol = v.bol in
    let bytes = offs + lexbuf.lex_start_pos - bol in
    let filename =
      match v.fname with
          None -> "" (* XXX, TODO: make it uniform across Piqi *)
        | Some s -> s
    in
    let len = bytes - v.utf8_delta + 1 in (* column positions start from 1 *)
    (filename, v.lnum, len)


  let addloc v lexbuf =
    if not !Piqi_config.pp_mode
    then
      let loc = location v lexbuf in
      v.loc <- loc :: v.loc
    else ()


  let custom_error descr v lexbuf =
    let loc = location v lexbuf in
    C.error_at loc descr


  let lexer_error descr v lexbuf =
    custom_error 
      (sprintf "%s '%s'" descr (Lexing.lexeme lexbuf))
      v lexbuf


  let parse_int64 s =
    match s.[0] with
      | '-' -> `Int (Int64.of_string s) (* negative integer *)
      | _ -> `Uint (Piq_parser.parse_uint s)


  let make_int s v lexbuf =
    try parse_int64 s
    with Failure _ ->
      lexer_error "Invalid int constant" v lexbuf

  let parse_float s v lexbuf =
    try float_of_string s
    with Failure _ ->
      lexer_error "Invalid float constant" v lexbuf

  let set_file_name v fname =
    v.fname <- fname

  let newline v lexbuf =
    v.lnum <- v.lnum + 1;
    v.bol <- lexbuf.lex_abs_pos + lexbuf.lex_curr_pos;
    v.utf8_delta <- 0; (* reset delta at newline *)
    ()


  (* returning length of utf8 string, i.e. unicode character count *)
  let utf8_length s pos bytes =
    let rec aux n i =
      if i = pos + bytes
      then n
      else begin
        let w = Piqi_utf8.width.(Char.code s.[i]) in
        if w > 0 && i + w <= pos + bytes
        then (
          (* check if the next unicode char is correctly encoded in utf8 *)
          ignore (Piqi_utf8.next s i);
          aux (succ n) (i + w)
        ) else raise Piqi_utf8.MalFormed
      end
    in
    aux 0 pos


  let check_adjust_utf8 v lexbuf s start len =
    let utf8_len =
      try utf8_length s start len
      with Piqi_utf8.MalFormed ->
        custom_error "Invalid utf-8 sequence" v lexbuf
    in
    v.utf8_delta <- v.utf8_delta + (len - utf8_len)


  let add_lexeme v lexbuf =
    let len = lexbuf.lex_curr_pos - lexbuf.lex_start_pos in
    let s = lexbuf.lex_buffer in
    let start = lexbuf.lex_start_pos in
    check_adjust_utf8 v lexbuf (Bytes.unsafe_to_string s) start len;
    Buffer.add_subbytes v.buf s start len

  let map_lexeme f lexbuf =
    let len = lexbuf.lex_curr_pos - lexbuf.lex_start_pos in
    f lexbuf.lex_buffer lexbuf.lex_start_pos len

  (* these exceptions are used internally to terminate top-down parsing
   * branches *)
  exception End_of_array
  exception End_of_object

# 159 "piqilib/piqi_json_parser.ml"
let __ocaml_lex_tables = {
  Lexing.lex_base =
   "\000\000\244\255\245\255\003\000\247\255\248\255\249\255\000\000\
    \024\000\010\000\252\255\000\000\000\000\000\000\001\000\002\000\
    \255\255\000\000\000\000\003\000\254\255\001\000\003\000\253\255\
    \079\000\089\000\099\000\121\000\131\000\141\000\153\000\163\000\
    \221\000\251\255\252\255\001\001\254\255\255\255\255\000\247\255\
    \248\255\020\001\250\255\251\255\252\255\253\255\254\255\255\255\
    \075\001\098\001\136\001\249\255\002\002\253\255\254\255\255\255\
    \037\002\035\002\056\002\111\002\134\002\172\002\034\000\255\255\
    \005\000\008\000\255\255\037\000\253\255\254\255\229\002\062\003\
    \255\255\001\000\255\255\210\000\252\255\253\255\254\255\255\255\
    \001\000\255\255\038\000\252\255\253\255\254\255\255\255\040\000\
    \253\255\254\255\255\255";
  Lexing.lex_backtrk =
   "\255\255\255\255\255\255\009\000\255\255\255\255\255\255\004\000\
    \004\000\011\000\255\255\011\000\011\000\011\000\255\255\255\255\
    \255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\
    \255\255\255\255\005\000\255\255\005\000\255\255\005\000\255\255\
    \255\255\255\255\255\255\002\000\255\255\255\255\255\255\255\255\
    \255\255\007\000\255\255\255\255\255\255\255\255\255\255\255\255\
    \255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\
    \255\255\255\255\255\255\255\255\255\255\255\255\001\000\255\255\
    \002\000\001\000\255\255\255\255\255\255\255\255\001\000\255\255\
    \255\255\001\000\255\255\255\255\255\255\255\255\255\255\255\255\
    \001\000\255\255\255\255\255\255\255\255\255\255\255\255\255\255\
    \255\255\255\255\255\255";
  Lexing.lex_default =
   "\001\000\000\000\000\000\255\255\000\000\000\000\000\000\255\255\
    \255\255\255\255\000\000\255\255\255\255\255\255\255\255\255\255\
    \000\000\255\255\255\255\255\255\000\000\255\255\255\255\000\000\
    \255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\
    \035\000\000\000\000\000\035\000\000\000\000\000\040\000\000\000\
    \000\000\255\255\000\000\000\000\000\000\000\000\000\000\000\000\
    \255\255\255\255\255\255\000\000\056\000\000\000\000\000\000\000\
    \056\000\255\255\255\255\255\255\255\255\255\255\255\255\000\000\
    \255\255\255\255\000\000\069\000\000\000\000\000\255\255\255\255\
    \000\000\255\255\000\000\077\000\000\000\000\000\000\000\000\000\
    \255\255\000\000\084\000\000\000\000\000\000\000\000\000\089\000\
    \000\000\000\000\000\000";
  Lexing.lex_trans =
   "\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\
    \000\000\003\000\004\000\000\000\003\000\003\000\065\000\066\000\
    \003\000\065\000\065\000\000\000\000\000\065\000\000\000\000\000\
    \000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\
    \003\000\000\000\010\000\003\000\000\000\065\000\000\000\000\000\
    \065\000\000\000\000\000\000\000\000\000\009\000\025\000\000\000\
    \007\000\008\000\008\000\008\000\008\000\008\000\008\000\008\000\
    \008\000\008\000\007\000\008\000\008\000\008\000\008\000\008\000\
    \008\000\008\000\008\000\008\000\000\000\024\000\025\000\070\000\
    \008\000\008\000\008\000\008\000\008\000\008\000\008\000\008\000\
    \008\000\008\000\086\000\000\000\000\000\000\000\000\000\000\000\
    \000\000\000\000\000\000\005\000\000\000\024\000\074\000\000\000\
    \000\000\017\000\090\000\000\000\000\000\024\000\012\000\016\000\
    \020\000\000\000\000\000\000\000\018\000\022\000\011\000\023\000\
    \000\000\000\000\014\000\019\000\013\000\021\000\015\000\000\000\
    \000\000\000\000\031\000\006\000\031\000\024\000\081\000\030\000\
    \030\000\030\000\030\000\030\000\030\000\030\000\030\000\030\000\
    \030\000\026\000\026\000\026\000\026\000\026\000\026\000\026\000\
    \026\000\026\000\026\000\026\000\026\000\026\000\026\000\026\000\
    \026\000\026\000\026\000\026\000\026\000\000\000\000\000\000\000\
    \000\000\000\000\000\000\085\000\029\000\000\000\029\000\000\000\
    \027\000\028\000\028\000\028\000\028\000\028\000\028\000\028\000\
    \028\000\028\000\028\000\028\000\028\000\028\000\028\000\028\000\
    \028\000\028\000\028\000\028\000\028\000\028\000\028\000\028\000\
    \028\000\028\000\028\000\028\000\028\000\028\000\028\000\000\000\
    \027\000\030\000\030\000\030\000\030\000\030\000\030\000\030\000\
    \030\000\030\000\030\000\030\000\030\000\030\000\030\000\030\000\
    \030\000\030\000\030\000\030\000\030\000\034\000\034\000\034\000\
    \034\000\034\000\034\000\034\000\034\000\034\000\034\000\034\000\
    \034\000\034\000\034\000\034\000\034\000\034\000\034\000\034\000\
    \034\000\034\000\034\000\034\000\034\000\034\000\034\000\034\000\
    \034\000\034\000\034\000\034\000\034\000\000\000\079\000\037\000\
    \002\000\255\255\255\255\255\255\255\255\255\255\255\255\255\255\
    \255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\
    \255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\
    \255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\
    \255\255\047\000\063\000\255\255\000\000\068\000\083\000\000\000\
    \088\000\000\000\000\000\000\000\000\000\000\000\047\000\078\000\
    \000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\
    \000\000\036\000\000\000\000\000\000\000\000\000\000\000\000\000\
    \000\000\000\000\000\000\000\000\048\000\048\000\048\000\048\000\
    \048\000\048\000\048\000\048\000\048\000\048\000\000\000\000\000\
    \000\000\000\000\000\000\000\000\000\000\048\000\048\000\048\000\
    \048\000\048\000\048\000\047\000\000\000\255\255\000\000\000\000\
    \000\000\046\000\000\000\000\000\000\000\045\000\000\000\000\000\
    \000\000\000\000\000\000\000\000\000\000\044\000\000\000\000\000\
    \000\000\043\000\000\000\042\000\041\000\048\000\048\000\048\000\
    \048\000\048\000\048\000\049\000\049\000\049\000\049\000\049\000\
    \049\000\049\000\049\000\049\000\049\000\000\000\000\000\000\000\
    \000\000\000\000\000\000\000\000\049\000\049\000\049\000\049\000\
    \049\000\049\000\050\000\050\000\050\000\050\000\050\000\050\000\
    \050\000\050\000\050\000\050\000\000\000\000\000\000\000\000\000\
    \000\000\000\000\000\000\050\000\050\000\050\000\050\000\050\000\
    \050\000\000\000\000\000\000\000\049\000\049\000\049\000\049\000\
    \049\000\049\000\000\000\000\000\000\000\000\000\000\000\000\000\
    \051\000\051\000\051\000\051\000\051\000\051\000\051\000\051\000\
    \051\000\051\000\000\000\050\000\050\000\050\000\050\000\050\000\
    \050\000\051\000\051\000\051\000\051\000\051\000\051\000\000\000\
    \000\000\000\000\076\000\000\000\000\000\000\000\000\000\000\000\
    \000\000\000\000\000\000\000\000\000\000\033\000\000\000\000\000\
    \000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\
    \000\000\051\000\051\000\051\000\051\000\051\000\051\000\000\000\
    \000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\000\
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    \000\000\000\000\000\000\000\000\000\000\000\000\000\000";
  Lexing.lex_check =
   "\255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\
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    \071\000\255\255\255\255\255\255\255\255\255\255\255\255\255\255\
    \255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\
    \255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\
    \255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\
    \255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\
    \255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\
    \255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\
    \255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\
    \255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\
    \255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\
    \255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\
    \255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\
    \255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\
    \255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\
    \255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\
    \255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\255\
    \255\255\255\255\255\255\255\255\255\255\255\255\255\255";
  Lexing.lex_base_code =
   "";
  Lexing.lex_backtrk_code =
   "";
  Lexing.lex_default_code =
   "";
  Lexing.lex_trans_code =
   "";
  Lexing.lex_check_code =
   "";
  Lexing.lex_code =
   "";
}

let rec read_json v lexbuf =
   __ocaml_lex_read_json_rec v lexbuf 0
and __ocaml_lex_read_json_rec v lexbuf __ocaml_lex_state =
  match Lexing.engine __ocaml_lex_tables __ocaml_lex_state lexbuf with
      | 0 ->
# 244 "piqilib/piqi_json_parser.mll"
                ( addloc v lexbuf; `Bool true )
# 495 "piqilib/piqi_json_parser.ml"

  | 1 ->
# 245 "piqilib/piqi_json_parser.mll"
                ( addloc v lexbuf; `Bool false )
# 500 "piqilib/piqi_json_parser.ml"

  | 2 ->
# 246 "piqilib/piqi_json_parser.mll"
                ( addloc v lexbuf; `Null () )
# 505 "piqilib/piqi_json_parser.ml"

  | 3 ->
# 247 "piqilib/piqi_json_parser.mll"
                (
                  addloc v lexbuf;
                  if not !Piqi_config.pp_mode
                  then
	            (Buffer.clear v.buf;
		    `String (finish_string v lexbuf)
                    )
                  else
                    `Stringlit (finish_stringlit v lexbuf)
                )
# 519 "piqilib/piqi_json_parser.ml"

  | 4 ->
# 258 "piqilib/piqi_json_parser.mll"
                (
                  addloc v lexbuf;
                  let s = lexeme lexbuf in
                  if not !Piqi_config.pp_mode
                  then make_int s v lexbuf
                  else `Intlit s
                )
# 530 "piqilib/piqi_json_parser.ml"

  | 5 ->
# 265 "piqilib/piqi_json_parser.mll"
                (
                  addloc v lexbuf;
                  if not !Piqi_config.pp_mode
                  then
                    let s = lexeme lexbuf in
                    `Float (parse_float s v lexbuf)
                  else
                    `Floatlit (lexeme lexbuf)
                )
# 543 "piqilib/piqi_json_parser.ml"

  | 6 ->
# 275 "piqilib/piqi_json_parser.mll"
                 (
                   addloc v lexbuf;
                   let acc = ref [] in
		   try
		     read_space v lexbuf;
		     read_object_end lexbuf;
		     let field_name = read_ident v lexbuf in
		     read_space v lexbuf;
		     read_colon v lexbuf;
		     read_space v lexbuf;
		     acc := (field_name, read_json v lexbuf) :: !acc;
		     while true do
		       read_space v lexbuf;
		       read_object_sep v lexbuf;
		       read_space v lexbuf;
		       let field_name = read_ident v lexbuf in
		       read_space v lexbuf;
		       read_colon v lexbuf;
		       read_space v lexbuf;
		       acc := (field_name, read_json v lexbuf) :: !acc;
		     done;
		     assert false
		   with End_of_object ->
		     `Assoc (List.rev !acc)
		 )
# 572 "piqilib/piqi_json_parser.ml"

  | 7 ->
# 301 "piqilib/piqi_json_parser.mll"
                 (
                   addloc v lexbuf;
                   let acc = ref [] in
		   try
		     read_space v lexbuf;
		     read_array_end lexbuf;
		     acc := read_json v lexbuf :: !acc;
		     while true do
		       read_space v lexbuf;
		       read_array_sep v lexbuf;
		       read_space v lexbuf;
		       acc := read_json v lexbuf :: !acc;
		     done;
		     assert false
		   with End_of_array ->
		     `List (List.rev !acc)
		 )
# 593 "piqilib/piqi_json_parser.ml"

  | 8 ->
# 319 "piqilib/piqi_json_parser.mll"
                 ( newline v lexbuf; read_json v lexbuf )
# 598 "piqilib/piqi_json_parser.ml"

  | 9 ->
# 320 "piqilib/piqi_json_parser.mll"
                 ( read_json v lexbuf )
# 603 "piqilib/piqi_json_parser.ml"

  | 10 ->
# 321 "piqilib/piqi_json_parser.mll"
                 ( custom_error "Unexpected end of input" v lexbuf )
# 608 "piqilib/piqi_json_parser.ml"

  | 11 ->
# 322 "piqilib/piqi_json_parser.mll"
                 ( lexer_error "Invalid token" v lexbuf )
# 613 "piqilib/piqi_json_parser.ml"

  | __ocaml_lex_state -> lexbuf.Lexing.refill_buff lexbuf;
      __ocaml_lex_read_json_rec v lexbuf __ocaml_lex_state

and finish_string v lexbuf =
   __ocaml_lex_finish_string_rec v lexbuf 32
and __ocaml_lex_finish_string_rec v lexbuf __ocaml_lex_state =
  match Lexing.engine __ocaml_lex_tables __ocaml_lex_state lexbuf with
      | 0 ->
# 326 "piqilib/piqi_json_parser.mll"
                  ( Buffer.contents v.buf )
# 625 "piqilib/piqi_json_parser.ml"

  | 1 ->
# 327 "piqilib/piqi_json_parser.mll"
                  ( finish_escaped_char v lexbuf;
		    finish_string v lexbuf )
# 631 "piqilib/piqi_json_parser.ml"

  | 2 ->
# 330 "piqilib/piqi_json_parser.mll"
                  ( add_lexeme v lexbuf;
		    finish_string v lexbuf )
# 637 "piqilib/piqi_json_parser.ml"

  | 3 ->
# 333 "piqilib/piqi_json_parser.mll"
                  ( custom_error "Invalid string literal" v lexbuf )
# 642 "piqilib/piqi_json_parser.ml"

  | 4 ->
# 334 "piqilib/piqi_json_parser.mll"
                  ( custom_error "Unexpected end of input" v lexbuf )
# 647 "piqilib/piqi_json_parser.ml"

  | __ocaml_lex_state -> lexbuf.Lexing.refill_buff lexbuf;
      __ocaml_lex_finish_string_rec v lexbuf __ocaml_lex_state

and finish_escaped_char v lexbuf =
   __ocaml_lex_finish_escaped_char_rec v lexbuf 38
and __ocaml_lex_finish_escaped_char_rec v lexbuf __ocaml_lex_state =
  match Lexing.engine __ocaml_lex_tables __ocaml_lex_state lexbuf with
      | 0 ->
let
# 340 "piqilib/piqi_json_parser.mll"
           c
# 660 "piqilib/piqi_json_parser.ml"
= Lexing.sub_lexeme_char lexbuf lexbuf.Lexing.lex_start_pos in
# 340 "piqilib/piqi_json_parser.mll"
             ( Buffer.add_char v.buf c )
# 664 "piqilib/piqi_json_parser.ml"

  | 1 ->
# 341 "piqilib/piqi_json_parser.mll"
         ( Buffer.add_char v.buf '\b' )
# 669 "piqilib/piqi_json_parser.ml"

  | 2 ->
# 342 "piqilib/piqi_json_parser.mll"
         ( Buffer.add_char v.buf '\012' )
# 674 "piqilib/piqi_json_parser.ml"

  | 3 ->
# 343 "piqilib/piqi_json_parser.mll"
         ( Buffer.add_char v.buf '\n' )
# 679 "piqilib/piqi_json_parser.ml"

  | 4 ->
# 344 "piqilib/piqi_json_parser.mll"
         ( Buffer.add_char v.buf '\r' )
# 684 "piqilib/piqi_json_parser.ml"

  | 5 ->
# 345 "piqilib/piqi_json_parser.mll"
         ( Buffer.add_char v.buf '\t' )
# 689 "piqilib/piqi_json_parser.ml"

  | 6 ->
let
# 346 "piqilib/piqi_json_parser.mll"
                                s
# 695 "piqilib/piqi_json_parser.ml"
= Lexing.sub_lexeme lexbuf (lexbuf.Lexing.lex_start_pos + 1) (lexbuf.Lexing.lex_start_pos + 5) in
# 347 "piqilib/piqi_json_parser.mll"
         ( let i = Piq_lexer.int_of_xstring s in
           Piqi_utf8.store v.buf i )
# 700 "piqilib/piqi_json_parser.ml"

  | 7 ->
# 349 "piqilib/piqi_json_parser.mll"
         ( lexer_error "Invalid escape sequence" v lexbuf )
# 705 "piqilib/piqi_json_parser.ml"

  | 8 ->
# 350 "piqilib/piqi_json_parser.mll"
         ( custom_error "Unexpected end of input" v lexbuf )
# 710 "piqilib/piqi_json_parser.ml"

  | __ocaml_lex_state -> lexbuf.Lexing.refill_buff lexbuf;
      __ocaml_lex_finish_escaped_char_rec v lexbuf __ocaml_lex_state

and finish_stringlit v lexbuf =
   __ocaml_lex_finish_stringlit_rec v lexbuf 52
and __ocaml_lex_finish_stringlit_rec v lexbuf __ocaml_lex_state =
  match Lexing.engine __ocaml_lex_tables __ocaml_lex_state lexbuf with
      | 0 ->
# 356 "piqilib/piqi_json_parser.mll"
         (
           let len = lexbuf.lex_curr_pos - lexbuf.lex_start_pos in
	   let s = Bytes.create (len+1) in
	   Bytes.set s 0 '"';
	   Bytes.blit lexbuf.lex_buffer lexbuf.lex_start_pos s 1 len;
           let s = Bytes.unsafe_to_string s in
           check_adjust_utf8 v lexbuf s 1 len;
	   s
	 )
# 730 "piqilib/piqi_json_parser.ml"

  | 1 ->
# 366 "piqilib/piqi_json_parser.mll"
         ( custom_error "Invalid string literal" v lexbuf )
# 735 "piqilib/piqi_json_parser.ml"

  | 2 ->
# 367 "piqilib/piqi_json_parser.mll"
         ( custom_error "Unexpected end of input" v lexbuf )
# 740 "piqilib/piqi_json_parser.ml"

  | __ocaml_lex_state -> lexbuf.Lexing.refill_buff lexbuf;
      __ocaml_lex_finish_stringlit_rec v lexbuf __ocaml_lex_state

and read_eof lexbuf =
   __ocaml_lex_read_eof_rec lexbuf 62
and __ocaml_lex_read_eof_rec lexbuf __ocaml_lex_state =
  match Lexing.engine __ocaml_lex_tables __ocaml_lex_state lexbuf with
      | 0 ->
# 373 "piqilib/piqi_json_parser.mll"
             ( true )
# 752 "piqilib/piqi_json_parser.ml"

  | 1 ->
# 374 "piqilib/piqi_json_parser.mll"
             ( false )
# 757 "piqilib/piqi_json_parser.ml"

  | __ocaml_lex_state -> lexbuf.Lexing.refill_buff lexbuf;
      __ocaml_lex_read_eof_rec lexbuf __ocaml_lex_state

and read_space v lexbuf =
   __ocaml_lex_read_space_rec v lexbuf 64
and __ocaml_lex_read_space_rec v lexbuf __ocaml_lex_state =
  match Lexing.engine __ocaml_lex_tables __ocaml_lex_state lexbuf with
      | 0 ->
# 377 "piqilib/piqi_json_parser.mll"
             ( newline v lexbuf; read_space v lexbuf )
# 769 "piqilib/piqi_json_parser.ml"

  | 1 ->
# 378 "piqilib/piqi_json_parser.mll"
             ( read_space v lexbuf )
# 774 "piqilib/piqi_json_parser.ml"

  | 2 ->
# 379 "piqilib/piqi_json_parser.mll"
             ( () )
# 779 "piqilib/piqi_json_parser.ml"

  | __ocaml_lex_state -> lexbuf.Lexing.refill_buff lexbuf;
      __ocaml_lex_read_space_rec v lexbuf __ocaml_lex_state

and read_ident v lexbuf =
   __ocaml_lex_read_ident_rec v lexbuf 67
and __ocaml_lex_read_ident_rec v lexbuf __ocaml_lex_state =
  match Lexing.engine __ocaml_lex_tables __ocaml_lex_state lexbuf with
      | 0 ->
let
# 382 "piqilib/piqi_json_parser.mll"
                  s
# 792 "piqilib/piqi_json_parser.ml"
= Lexing.sub_lexeme lexbuf (lexbuf.Lexing.lex_start_pos + 1) (lexbuf.Lexing.lex_curr_pos + -1) in
# 383 "piqilib/piqi_json_parser.mll"
             ( addloc v lexbuf; s )
# 796 "piqilib/piqi_json_parser.ml"

  | 1 ->
# 384 "piqilib/piqi_json_parser.mll"
             ( lexer_error "Expected string identifier but found" v lexbuf )
# 801 "piqilib/piqi_json_parser.ml"

  | 2 ->
# 385 "piqilib/piqi_json_parser.mll"
             ( custom_error "Unexpected end of input" v lexbuf )
# 806 "piqilib/piqi_json_parser.ml"

  | __ocaml_lex_state -> lexbuf.Lexing.refill_buff lexbuf;
      __ocaml_lex_read_ident_rec v lexbuf __ocaml_lex_state

and read_array_end lexbuf =
   __ocaml_lex_read_array_end_rec lexbuf 73
and __ocaml_lex_read_array_end_rec lexbuf __ocaml_lex_state =
  match Lexing.engine __ocaml_lex_tables __ocaml_lex_state lexbuf with
      | 0 ->
# 389 "piqilib/piqi_json_parser.mll"
             ( raise End_of_array )
# 818 "piqilib/piqi_json_parser.ml"

  | 1 ->
# 390 "piqilib/piqi_json_parser.mll"
             ( () )
# 823 "piqilib/piqi_json_parser.ml"

  | __ocaml_lex_state -> lexbuf.Lexing.refill_buff lexbuf;
      __ocaml_lex_read_array_end_rec lexbuf __ocaml_lex_state

and read_array_sep v lexbuf =
   __ocaml_lex_read_array_sep_rec v lexbuf 75
and __ocaml_lex_read_array_sep_rec v lexbuf __ocaml_lex_state =
  match Lexing.engine __ocaml_lex_tables __ocaml_lex_state lexbuf with
      | 0 ->
# 393 "piqilib/piqi_json_parser.mll"
             ( () )
# 835 "piqilib/piqi_json_parser.ml"

  | 1 ->
# 394 "piqilib/piqi_json_parser.mll"
             ( raise End_of_array )
# 840 "piqilib/piqi_json_parser.ml"

  | 2 ->
# 395 "piqilib/piqi_json_parser.mll"
             ( lexer_error "Expected ',' or ']' but found" v lexbuf )
# 845 "piqilib/piqi_json_parser.ml"

  | 3 ->
# 396 "piqilib/piqi_json_parser.mll"
             ( custom_error "Unexpected end of input" v lexbuf )
# 850 "piqilib/piqi_json_parser.ml"

  | __ocaml_lex_state -> lexbuf.Lexing.refill_buff lexbuf;
      __ocaml_lex_read_array_sep_rec v lexbuf __ocaml_lex_state

and read_object_end lexbuf =
   __ocaml_lex_read_object_end_rec lexbuf 80
and __ocaml_lex_read_object_end_rec lexbuf __ocaml_lex_state =
  match Lexing.engine __ocaml_lex_tables __ocaml_lex_state lexbuf with
      | 0 ->
# 399 "piqilib/piqi_json_parser.mll"
             ( raise End_of_object )
# 862 "piqilib/piqi_json_parser.ml"

  | 1 ->
# 400 "piqilib/piqi_json_parser.mll"
             ( () )
# 867 "piqilib/piqi_json_parser.ml"

  | __ocaml_lex_state -> lexbuf.Lexing.refill_buff lexbuf;
      __ocaml_lex_read_object_end_rec lexbuf __ocaml_lex_state

and read_object_sep v lexbuf =
   __ocaml_lex_read_object_sep_rec v lexbuf 82
and __ocaml_lex_read_object_sep_rec v lexbuf __ocaml_lex_state =
  match Lexing.engine __ocaml_lex_tables __ocaml_lex_state lexbuf with
      | 0 ->
# 403 "piqilib/piqi_json_parser.mll"
             ( () )
# 879 "piqilib/piqi_json_parser.ml"

  | 1 ->
# 404 "piqilib/piqi_json_parser.mll"
             ( raise End_of_object )
# 884 "piqilib/piqi_json_parser.ml"

  | 2 ->
# 405 "piqilib/piqi_json_parser.mll"
             ( lexer_error "Expected ',' or '}' but found" v lexbuf )
# 889 "piqilib/piqi_json_parser.ml"

  | 3 ->
# 406 "piqilib/piqi_json_parser.mll"
             ( custom_error "Unexpected end of input" v lexbuf )
# 894 "piqilib/piqi_json_parser.ml"

  | __ocaml_lex_state -> lexbuf.Lexing.refill_buff lexbuf;
      __ocaml_lex_read_object_sep_rec v lexbuf __ocaml_lex_state

and read_colon v lexbuf =
   __ocaml_lex_read_colon_rec v lexbuf 87
and __ocaml_lex_read_colon_rec v lexbuf __ocaml_lex_state =
  match Lexing.engine __ocaml_lex_tables __ocaml_lex_state lexbuf with
      | 0 ->
# 409 "piqilib/piqi_json_parser.mll"
             ( () )
# 906 "piqilib/piqi_json_parser.ml"

  | 1 ->
# 410 "piqilib/piqi_json_parser.mll"
             ( lexer_error "Expected ':' but found" v lexbuf )
# 911 "piqilib/piqi_json_parser.ml"

  | 2 ->
# 411 "piqilib/piqi_json_parser.mll"
             ( custom_error "Unexpected end of input" v lexbuf )
# 916 "piqilib/piqi_json_parser.ml"

  | __ocaml_lex_state -> lexbuf.Lexing.refill_buff lexbuf;
      __ocaml_lex_read_colon_rec v lexbuf __ocaml_lex_state

;;

# 414 "piqilib/piqi_json_parser.mll"
 
  (* XXX: detect JSON encoding and make sure that it is utf-8 *)

  let _ = (read_json : lexer_state -> Lexing.lexbuf -> json)

  let finish v lexbuf =
    read_space v lexbuf;
    if not (read_eof lexbuf) then
      custom_error "Junk after end of JSON value" v lexbuf

  let init_lexer ?buf ?fname ?(lnum = 1) () =
    let buf =
      match buf with
	  None -> Buffer.create 256
	| Some buf -> buf
    in
    {
      buf = buf;
      lnum = lnum;
      bol = 0;
      fname = fname;
      utf8_delta = 0;
      loc = [];
    }


  let rec save_locations v json =
    let addloc loc obj = Piqloc.addloc loc obj in
    let rec aux l x =
      let h, t =
        match l with
          | h::t -> h, t
          | _ -> assert false
      in
      let add x = addloc h x in
      let addret x = add x; t in
      add x;
      match x with
        | `Null () | `Bool _ -> t (* can't save locations for unboxed types *)
        | `Int i -> addret i
        | `Uint i -> addret i
        | `Intlit s -> addret s
        | `Float f -> addret f
        | `Floatlit s -> addret s
        | `String s -> addret s
        | `Stringlit s -> addret s
        | `Assoc l ->
            List.fold_left
              (fun l (n, v) ->
                addloc (List.hd l) n;
                aux (List.tl l) v) t l
        | `List l ->
            List.fold_left (fun t v -> aux t v) t l
    in
    if not !Piqi_config.pp_mode
    then
      let t = aux (List.rev v.loc) json in
      v.loc <- []; (* reset the location list *)
      assert (t = [])
    else ()


  let read_next (v, lexbuf) =
    read_space v lexbuf;
    if read_eof lexbuf
    then None
    else
      let json = read_json v lexbuf in
      save_locations v json;
      Some json


  let read_all json_parser =
    let rec aux accu =
      match read_next json_parser with
        | None -> List.rev accu
        | Some x -> aux (x::accu)
    in aux []


  let init_from_string ?buf ?fname ?lnum s =
    let lexbuf = Lexing.from_string s in
    let v = init_lexer ?buf ?fname ?lnum () in
    (v, lexbuf)


  let init_from_channel ?buf ?fname ?lnum ic =
    let lexbuf = Lexing.from_channel ic in
    let v = init_lexer ?buf ?fname ?lnum () in
    (v, lexbuf)

# 1015 "piqilib/piqi_json_parser.ml"
Install

dune-project
Dependency

Authors

Maintainers

Sources

doc/src/piqilib/piqi_json_parser.ml.html

Source file `piqi_json_parser.ml`

package piqilib

Install

dune-project Dependency

Authors

Maintainers

Sources

doc/src/piqilib/piqi_json_parser.ml.html

Source file piqi_json_parser.ml

dune-project
Dependency

Source file `piqi_json_parser.ml`
