package iso639

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Basic Operations
Conversions
Language Code Conversions

iso639
- Iso639

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Language families and groups as identified by ISO 639-5.

ISO 639-5 defines language codes for selected language groups and families. A few of these are also present in ISO 639-1 and 639-2. This module defines an abstract type covering these language families and groups, and provides conversions to the relevant language codes.

Remainder groups of ISO 639-2 are not distinguished from the corresponding complete groups of ISO 639-5.

type t

A representation of language families and groups in ISO 639-5.

Basic Operations

val equal : t -> t -> bool

Equality of the corresponding ISO 693-5 language codes.

val compare : t -> t -> int

Lexicographic order of the corresponding ISO 639-5 language codes.

val pp : Format.formatter -> t -> unit

pp ppf lang prints the ISO 639-5 language code of lang on ppf.

Conversions

val to_int : t -> int

An injective mapping to 16 bit integers.

val of_int : int -> t option

The partial inverse of to_int.

val of_int_exn : int -> t

The partial inverse of to_int.

raises Invalid_argument
if the argument is out of range.

val to_lang_or_family : t -> Lang_or_family.t

Injection into the combined ISO 639 type.

val of_lang_or_family : Lang_or_family.t -> t option

Restriction from the combined ISO 639 type.

Language Code Conversions

val to_string : t -> string

to_string s is the ISO 639-5 language code of lang.

val of_string : string -> t option

of_string s is the language family or group represented by the ISO 639-5 code s.

val of_string_exn : string -> t

of_string_exn s is the language family or group represented by the ISO 639-5 code s.

val is_iso639p1 : t -> bool

is_iso639p1 lang is true iff lang is represented in ISO 639-1.

val to_iso639p1 : t -> string option

to_iso639p1 lang is the ISO 693-1 language code of lang, if it exists.

val of_iso639p1 : string -> t option

of_iso639p1 s is the language represented by the ISO 639-1 language code s.

val is_iso639p2 : t -> bool

is_iso639p2 lang is true iff lang is represented in ISO 639-2.

val to_iso639p2t : t -> string option

to_iso639p2t lang is the ISO 639-2T language code of lang, if it exists.

val to_iso639p2b : t -> string option

to_iso639p2b lang is the ISO 639-2B language code of lang, if it exists.

val of_iso639p2 : string -> t option

of_iso639p2 s is the language represented by the ISO 639 part 2T or 2B language code s.