.. index:: single: text_case_folding
.. _text_case_folding/0:

.. rst-class:: right

**category**

``text_case_folding``
=====================

Portable Unicode 17.0 default case conversion over lists of Unicode scalar values.

| **Availability:** 
|    ``logtalk_load(text_normalization(loader))``

| **Author:** Paulo Moura
| **Version:** 1:0:0
| **Date:** 2026-09-06

| **Compilation flags:**
|    ``static``


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

| **Remarks:**
|    (none)

| **Inherited public predicates:**
|    (none)

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

Public predicates
-----------------

(no local declarations; see entity ancestors if any)

Protected predicates
--------------------

.. index:: convert_case_codes/4
.. _text_case_folding/0::convert_case_codes/4:

``convert_case_codes/4``
^^^^^^^^^^^^^^^^^^^^^^^^

Applies a profile override or the default ``fold``, ``lower``, ``upper``, or ``title`` case conversion.

| **Compilation flags:**
|    ``static``

| **Template:**
|    ``convert_case_codes(Mode,Codes,Profile,Converted)``
| **Mode and number of proofs:**
|    ``convert_case_codes(+atom,+list(integer),+object_identifier,-list(integer))`` - ``one``


------------

Private predicates
------------------

(no local declarations; see entity ancestors if any)

Operators
---------

(none)