`language_detection_scripts`

Unicode script analysis and language script registry.

| Availability: | logtalk_load(language_detection(loader))

| Author: Paulo Moura | Version: 1:0:0 | Date: 2026-09-07

| Compilation flags: | static, context_switching_calls

| Uses: | :ref:`list <list/0>` | :ref:`user <user/0>`

| Remarks: | (none)

| Inherited public predicates: | (none)

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

Public predicates

.. index:: script_ratios/2 .. _language_detection_scripts/0::script_ratios/2:

script_ratios/2 ^^^^^^^^^^^^^^^^^^^

Returns observed Unicode scripts and their ratios ordered by decreasing ratio and then by script name.

| Compilation flags: | static

| Template: | script_ratios(Codes,ScriptRatios) | Mode and number of proofs: | script_ratios(+list(character_code),-list(pair(atom,float))) - one

.. index:: language_scripts/2 .. _language_detection_scripts/0::language_scripts/2:

language_scripts/2 ^^^^^^^^^^^^^^^^^^^^^^

Enumerates effective ISO 639-1 language codes and their expected Unicode scripts. Custom mappings override default mappings.

| Compilation flags: | static

| Template: | language_scripts(Language,Scripts) | Mode and number of proofs: | language_scripts(?atom,?list(atom)) - zero_or_more

.. index:: default_language_scripts/2 .. _language_detection_scripts/0::default_language_scripts/2:

default_language_scripts/2 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Enumerates default ISO 639-1 language codes and their expected Unicode scripts.

| Compilation flags: | static

| Template: | default_language_scripts(Language,Scripts) | Mode and number of proofs: | default_language_scripts(?atom,?list(atom)) - zero_or_more

.. index:: custom_language_scripts/2 .. _language_detection_scripts/0::custom_language_scripts/2:

custom_language_scripts/2 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Enumerates custom ISO 639-1 language codes and their expected Unicode scripts.

| Compilation flags: | static, multifile

| Template: | custom_language_scripts(Language,Scripts) | Mode and number of proofs: | custom_language_scripts(?atom,?list(atom)) - zero_or_more

.. index:: scripts_to_languages/2 .. _language_detection_scripts/0::scripts_to_languages/2:

scripts_to_languages/2 ^^^^^^^^^^^^^^^^^^^^^^^^^^

Returns the sorted unique registered languages compatible with any meaningful script in the given list.

| Compilation flags: | static

| Template: | scripts_to_languages(Scripts,Languages) | Mode and number of proofs: | scripts_to_languages(+list(atom),-list(atom)) - one

Protected predicates

(no local declarations; see entity ancestors if any)

Private predicates

(no local declarations; see entity ancestors if any)

Operators

(none)