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module String : sig ... end

module Int : sig ... end

module Option : sig ... end

module Format : sig ... end

module List : sig ... end

module Seq : sig ... end

This is the lazy evaluated sequence module for OCaml 4.06 compatability. The signatures and comments are based on the standard OCaml library.

module Set : sig ... end

module Result : sig ... end

module O : sig ... end

val fst : ('a * 'b) -> 'a

val snd : ('a * 'b) -> 'b

include module type of struct include Sexplib0.Sexp_conv end

Conversion of OCaml-values to S-expressions

val default_string_of_float : (float -> string) ref

default_string_of_float reference to the default function used to convert floats to strings.

Initially set to fun n -> sprintf "%.20G" n.

val write_old_option_format : bool ref

write_old_option_format reference for the default option format used to write option values. If set to true, the old-style option format will be used, the new-style one otherwise.

Initially set to true.

val read_old_option_format : bool ref

read_old_option_format reference for the default option format used to read option values. Of_sexp_error will be raised with old-style option values if this reference is set to false. Reading new-style option values is always supported. Using a global reference instead of changing the converter calling conventions is the only way to avoid breaking old code with the standard macros.

Initially set to true.

val list_map : ('a -> 'b) -> 'a list -> 'b list

We re-export a tail recursive map function, because some modules override the standard library functions (e.g. StdLabels) which wrecks havoc with the camlp4 extension.

val sexp_of_unit : unit -> Sexplib0.Sexp.t

sexp_of_unit () converts a value of type unit to an S-expression.

val sexp_of_bool : bool -> Sexplib0.Sexp.t

sexp_of_bool b converts the value x of type bool to an S-expression.

val sexp_of_string : string -> Sexplib0.Sexp.t

sexp_of_bool str converts the value str of type string to an S-expression.

val sexp_of_bytes : bytes -> Sexplib0.Sexp.t

sexp_of_bool str converts the value str of type bytes to an S-expression.

val sexp_of_char : char -> Sexplib0.Sexp.t

sexp_of_char c converts the value c of type char to an S-expression.

val sexp_of_int : int -> Sexplib0.Sexp.t

sexp_of_int n converts the value n of type int to an S-expression.

val sexp_of_float : float -> Sexplib0.Sexp.t

sexp_of_float n converts the value n of type float to an S-expression.

val sexp_of_int32 : int32 -> Sexplib0.Sexp.t

sexp_of_int32 n converts the value n of type int32 to an S-expression.

val sexp_of_int64 : int64 -> Sexplib0.Sexp.t

sexp_of_int64 n converts the value n of type int64 to an S-expression.

val sexp_of_nativeint : nativeint -> Sexplib0.Sexp.t

sexp_of_nativeint n converts the value n of type nativeint to an S-expression.

val sexp_of_ref : ('a -> Sexplib0.Sexp.t) -> 'a ref -> Sexplib0.Sexp.t

sexp_of_ref conv r converts the value r of type 'a ref to an S-expression. Uses conv to convert values of type 'a to an S-expression.

val sexp_of_lazy_t : ('a -> Sexplib0.Sexp.t) -> 'a lazy_t -> Sexplib0.Sexp.t

sexp_of_lazy_t conv l converts the value l of type 'a lazy_t to an S-expression. Uses conv to convert values of type 'a to an S-expression.

val sexp_of_option : ('a -> Sexplib0.Sexp.t) -> 'a option -> Sexplib0.Sexp.t

sexp_of_option conv opt converts the value opt of type 'a option to an S-expression. Uses conv to convert values of type 'a to an S-expression.

val sexp_of_pair : 
  ('a -> Sexplib0.Sexp.t) ->
  ('b -> Sexplib0.Sexp.t) ->
  ('a * 'b) ->
  Sexplib0.Sexp.t

sexp_of_pair conv1 conv2 pair converts a pair to an S-expression. It uses its first argument to convert the first element of the pair, and its second argument to convert the second element of the pair.

val sexp_of_triple : 
  ('a -> Sexplib0.Sexp.t) ->
  ('b -> Sexplib0.Sexp.t) ->
  ('c -> Sexplib0.Sexp.t) ->
  ('a * 'b * 'c) ->
  Sexplib0.Sexp.t

sexp_of_triple conv1 conv2 conv3 triple converts a triple to an S-expression using conv1, conv2, and conv3 to convert its elements.

val sexp_of_list : ('a -> Sexplib0.Sexp.t) -> 'a list -> Sexplib0.Sexp.t

sexp_of_list conv lst converts the value lst of type 'a list to an S-expression. Uses conv to convert values of type 'a to an S-expression.

val sexp_of_array : ('a -> Sexplib0.Sexp.t) -> 'a array -> Sexplib0.Sexp.t

sexp_of_array conv ar converts the value ar of type 'a array to an S-expression. Uses conv to convert values of type 'a to an S-expression.

val sexp_of_hashtbl : 
  ('a -> Sexplib0.Sexp.t) ->
  ('b -> Sexplib0.Sexp.t) ->
  ('a, 'b) Hashtbl.t ->
  Sexplib0.Sexp.t

sexp_of_hashtbl conv_key conv_value htbl converts the value htbl of type ('a, 'b) Hashtbl.t to an S-expression. Uses conv_key to convert the hashtable keys of type 'a, and conv_value to convert hashtable values of type 'b to S-expressions.

val sexp_of_opaque : 'a -> Sexplib0.Sexp.t

sexp_of_opaque x converts the value x of opaque type to an S-expression. This means the user need not provide converters, but the result cannot be interpreted.

val sexp_of_fun : ('a -> 'b) -> Sexplib0.Sexp.t

sexp_of_fun f converts the value f of function type to a dummy S-expression. Functions cannot be serialized as S-expressions, but at least a placeholder can be generated for pretty-printing.

Conversion of S-expressions to OCaml-values

exception Of_sexp_error of exn * Sexplib0.Sexp.t

Of_sexp_error (exn, sexp) the exception raised when an S-expression could not be successfully converted to an OCaml-value.

val record_check_extra_fields : bool ref

record_check_extra_fields checks for extra (= unknown) fields in record S-expressions.

val of_sexp_error : string -> Sexplib0.Sexp.t -> 'a

of_sexp_error reason sexp

raises Of_sexp_error
(Failure reason, sexp).

val of_sexp_error_exn : exn -> Sexplib0.Sexp.t -> 'a

of_sexp_error exc sexp

raises Of_sexp_error
(exc, sexp).

val unit_of_sexp : Sexplib0.Sexp.t -> unit

unit_of_sexp sexp converts S-expression sexp to a value of type unit.

val bool_of_sexp : Sexplib0.Sexp.t -> bool

bool_of_sexp sexp converts S-expression sexp to a value of type bool.

val string_of_sexp : Sexplib0.Sexp.t -> string

string_of_sexp sexp converts S-expression sexp to a value of type string.

val bytes_of_sexp : Sexplib0.Sexp.t -> bytes

bytes_of_sexp sexp converts S-expression sexp to a value of type bytes.

val char_of_sexp : Sexplib0.Sexp.t -> char

char_of_sexp sexp converts S-expression sexp to a value of type char.

val int_of_sexp : Sexplib0.Sexp.t -> int

int_of_sexp sexp converts S-expression sexp to a value of type int.

val float_of_sexp : Sexplib0.Sexp.t -> float

float_of_sexp sexp converts S-expression sexp to a value of type float.

val int32_of_sexp : Sexplib0.Sexp.t -> int32

int32_of_sexp sexp converts S-expression sexp to a value of type int32.

val int64_of_sexp : Sexplib0.Sexp.t -> int64

int64_of_sexp sexp converts S-expression sexp to a value of type int64.

val nativeint_of_sexp : Sexplib0.Sexp.t -> nativeint

nativeint_of_sexp sexp converts S-expression sexp to a value of type nativeint.

val ref_of_sexp : (Sexplib0.Sexp.t -> 'a) -> Sexplib0.Sexp.t -> 'a ref

ref_of_sexp conv sexp converts S-expression sexp to a value of type 'a ref using conversion function conv, which converts an S-expression to a value of type 'a.

val lazy_t_of_sexp : (Sexplib0.Sexp.t -> 'a) -> Sexplib0.Sexp.t -> 'a lazy_t

lazy_t_of_sexp conv sexp converts S-expression sexp to a value of type 'a lazy_t using conversion function conv, which converts an S-expression to a value of type 'a.

val option_of_sexp : (Sexplib0.Sexp.t -> 'a) -> Sexplib0.Sexp.t -> 'a option

option_of_sexp conv sexp converts S-expression sexp to a value of type 'a option using conversion function conv, which converts an S-expression to a value of type 'a.

val pair_of_sexp : 
  (Sexplib0.Sexp.t -> 'a) ->
  (Sexplib0.Sexp.t -> 'b) ->
  Sexplib0.Sexp.t ->
  'a * 'b

pair_of_sexp conv1 conv2 sexp converts S-expression sexp to a pair of type 'a * 'b using conversion functions conv1 and conv2, which convert S-expressions to values of type 'a and 'b respectively.

val triple_of_sexp : 
  (Sexplib0.Sexp.t -> 'a) ->
  (Sexplib0.Sexp.t -> 'b) ->
  (Sexplib0.Sexp.t -> 'c) ->
  Sexplib0.Sexp.t ->
  'a * 'b * 'c

triple_of_sexp conv1 conv2 conv3 sexp converts S-expression sexp to a triple of type 'a * 'b * 'c using conversion functions conv1, conv2, and conv3, which convert S-expressions to values of type 'a, 'b, and 'c respectively.

val list_of_sexp : (Sexplib0.Sexp.t -> 'a) -> Sexplib0.Sexp.t -> 'a list

list_of_sexp conv sexp converts S-expression sexp to a value of type 'a list using conversion function conv, which converts an S-expression to a value of type 'a.

val array_of_sexp : (Sexplib0.Sexp.t -> 'a) -> Sexplib0.Sexp.t -> 'a array

array_of_sexp conv sexp converts S-expression sexp to a value of type 'a array using conversion function conv, which converts an S-expression to a value of type 'a.

val hashtbl_of_sexp : 
  (Sexplib0.Sexp.t -> 'a) ->
  (Sexplib0.Sexp.t -> 'b) ->
  Sexplib0.Sexp.t ->
  ('a, 'b) Hashtbl.t

hashtbl_of_sexp conv_key conv_value sexp converts S-expression sexp to a value of type ('a, 'b) Hashtbl.t using conversion function conv_key, which converts an S-expression to hashtable key of type 'a, and function conv_value, which converts an S-expression to hashtable value of type 'b.

val opaque_of_sexp : Sexplib0.Sexp.t -> 'a

opaque_of_sexp sexp

raises Of_sexp_error
when attempting to convert an S-expression to an opaque value.

val fun_of_sexp : Sexplib0.Sexp.t -> 'a

fun_of_sexp sexp

raises Of_sexp_error
when attempting to convert an S-expression to a function.

Sexp Grammars

val unit_sexp_grammar : unit Sexplib0.Sexp_grammar.t

val bool_sexp_grammar : bool Sexplib0.Sexp_grammar.t

val string_sexp_grammar : string Sexplib0.Sexp_grammar.t

val bytes_sexp_grammar : bytes Sexplib0.Sexp_grammar.t

val char_sexp_grammar : char Sexplib0.Sexp_grammar.t

val int_sexp_grammar : int Sexplib0.Sexp_grammar.t

val float_sexp_grammar : float Sexplib0.Sexp_grammar.t

val int32_sexp_grammar : int32 Sexplib0.Sexp_grammar.t

val int64_sexp_grammar : int64 Sexplib0.Sexp_grammar.t

val nativeint_sexp_grammar : nativeint Sexplib0.Sexp_grammar.t

val sexp_t_sexp_grammar : Sexplib0.Sexp.t Sexplib0.Sexp_grammar.t

val ref_sexp_grammar : 
  'a Sexplib0.Sexp_grammar.t ->
  'a ref Sexplib0.Sexp_grammar.t

val lazy_t_sexp_grammar : 
  'a Sexplib0.Sexp_grammar.t ->
  'a lazy_t Sexplib0.Sexp_grammar.t

val option_sexp_grammar : 
  'a Sexplib0.Sexp_grammar.t ->
  'a option Sexplib0.Sexp_grammar.t

val list_sexp_grammar : 
  'a Sexplib0.Sexp_grammar.t ->
  'a list Sexplib0.Sexp_grammar.t

val array_sexp_grammar : 
  'a Sexplib0.Sexp_grammar.t ->
  'a array Sexplib0.Sexp_grammar.t

val opaque_sexp_grammar : 'a Sexplib0.Sexp_grammar.t

val fun_sexp_grammar : 'a Sexplib0.Sexp_grammar.t

Exception converters

val sexp_of_exn : exn -> Sexplib0.Sexp.t

sexp_of_exn exc converts exception exc to an S-expression. If no suitable converter is found, the standard converter in Printexc will be used to generate an atomic S-expression.

val printexc_prefer_sexp : exn -> string

Converts an exception to a string via sexp, falling back to Printexc.to_string if no sexp conversion is registered for this exception.

This is different from Printexc.to_string in that it additionally uses the sexp converters registered with ~printexc:false. Another difference is that the behavior of Printexc can be overridden with Printexc.register, but here we always try sexp conversion first.

val sexp_of_exn_opt : exn -> Sexplib0.Sexp.t option

sexp_of_exn_opt exc converts exception exc to Some sexp. If no suitable converter is found, None is returned instead.

module Exn_converter = Sexplib0.Sexp_conv.Exn_converter

module Sexp = Sexplib.Sexp