`iso_639_protocol`

Protocol for ISO 639 language and language-group lookups.

| Availability: | logtalk_load(iso_639(loader))

| Author: Paulo Moura | Version: 1:0:0 | Date: 2026-05-05

| Compilation flags: | static

| Dependencies: | (none)

| Remarks: | (none)

| Inherited public predicates: | (none)

.. contents:: :local: :backlinks: top

Public predicates

.. index:: language/3 .. _iso_639_protocol/0::language/3:

language/3 ^^^^^^^^^^^^^^

Enumerates ISO 639-1 entries as alpha-2, alpha-3, and English name tuples.

| Compilation flags: | static

| Template: | language(Alpha2,Alpha3,Name) | Mode and number of proofs: | language(?atom,?atom,?atom) - zero_or_more

.. index:: language_code/5 .. _iso_639_protocol/0::language_code/5:

language_code/5 ^^^^^^^^^^^^^^^^^^^

Enumerates ISO 639-2 entries as bibliographic code, terminologic code, alpha-2 code, English name, and class tuples. The class is one of individual, macrolanguage, collective, special, or local_use.

| Compilation flags: | static

| Template: | language_code(Bibliographic,Terminologic,Alpha2,Name,Class) | Mode and number of proofs: | language_code(?atom,?atom,?atom,?atom,?atom) - zero_or_more

.. index:: language/5 .. _iso_639_protocol/0::language/5:

language/5 ^^^^^^^^^^^^^^

Enumerates ISO 639-3 entries as alpha-3 code, alpha-2 code, scope, type, and English name tuples. The scope is one of individual, macrolanguage, collective, or special and the type is one of living, extinct, ancient, constructed, or special.

| Compilation flags: | static

| Template: | language(Alpha3,Alpha2,Scope,Type,Name) | Mode and number of proofs: | language(?atom,?atom,?atom,?atom,?atom) - zero_or_more

.. index:: language_group/2 .. _iso_639_protocol/0::language_group/2:

language_group/2 ^^^^^^^^^^^^^^^^^^^^

Enumerates ISO 639-5 entries as group code and English name tuples.

| Compilation flags: | static

| Template: | language_group(Code,Name) | Mode and number of proofs: | language_group(?atom,?atom) - zero_or_more

Protected predicates

(none)

Private predicates

(none)

Operators

(none)