.. index:: single: language_detection_scripts
.. _language_detection_scripts/0:

.. rst-class:: right

**object**

``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)