module Json_io:Input and output functions for the JSON format as defined by http://www.json.org/sig
..end
val json_of_string : ?allow_comments:bool ->
?allow_nan:bool ->
?big_int_mode:bool -> ?recursive:bool -> string -> Json_type.t
json_of_string s
reads the given JSON string.
If allow_comments
is true
, then C++ style comments are allowed, i.e.
/* blabla possibly on several lines */
or
// blabla until the end of the line
. Comments are not part of the JSON
specification and are disabled by default.
If allow_nan
is true
, then OCaml nan
, infinity
and neg_infinity
float values are represented using their Javascript counterparts
NaN
, Infinity
and -Infinity
.
If big_int_mode
is true
, then JSON ints that cannot be represented
using OCaml's int type are represented by strings.
This would happen only for ints that are out of the range defined
by min_int
and max_int
, i.e. [-1G, +1G[ on a 32-bit platform.
The default is false
and a Json_type.Json_error
exception
is raised if an int is too big.
If recursive
is true, then all JSON values are accepted rather
than just arrays and objects as specified by the standard.
The default is false
.
val load_json : ?allow_comments:bool ->
?allow_nan:bool ->
?big_int_mode:bool -> ?recursive:bool -> string -> Json_type.t
Json_io.json_of_string
but the argument is a file
to read from.module Compact:sig
..end
module Fast:sig
..end
module Pretty:sig
..end
val string_of_json : ?allow_nan:bool -> ?compact:bool -> ?recursive:bool -> Json_type.t -> string
string_of_json
converts JSON data to a string.
By default, the output is indented. If the compact
flag is set to true,
the output will not contain superfluous whitespace and will
be produced faster.
If allow_nan
is true
, then OCaml nan
, infinity
and neg_infinity
float values are represented using their Javascript counterparts
NaN
, Infinity
and -Infinity
.
val save_json : ?allow_nan:bool ->
?compact:bool -> ?recursive:bool -> string -> Json_type.t -> unit
save_json
works like Json_io.string_of_json
but
saves the results directly into the file specified by the
argument of type string.