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------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- S Y S T E M . C A S E _ U T I L --
-- --
-- S p e c --
-- --
-- Copyright (C) 1995-2021, Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 3, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
-- As a special exception under Section 7 of GPL version 3, you are granted --
-- additional permissions described in the GCC Runtime Library Exception, --
-- version 3.1, as published by the Free Software Foundation. --
-- --
-- You should have received a copy of the GNU General Public License and --
-- a copy of the GCC Runtime Library Exception along with this program; --
-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
-- <http://www.gnu.org/licenses/>. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
-- Simple casing functions
-- This package provides simple casing functions that do not require the
-- overhead of the full casing tables found in Ada.Characters.Handling.
package System.Case_Util is
pragma Pure;
-- Note: all the following functions handle the full Latin-1 set
function To_Upper (A : Character) return Character;
-- Converts A to upper case if it is a lower case letter, otherwise
-- returns the input argument unchanged.
procedure To_Upper (A : in out String);
function To_Upper (A : String) return String;
-- Folds all characters of string A to upper case
function To_Lower (A : Character) return Character;
-- Converts A to lower case if it is an upper case letter, otherwise
-- returns the input argument unchanged.
procedure To_Lower (A : in out String);
function To_Lower (A : String) return String;
-- Folds all characters of string A to lower case
procedure To_Mixed (A : in out String);
function To_Mixed (A : String) return String;
-- Converts A to mixed case (i.e. lower case, except for initial
-- character and any character after an underscore, which are
-- converted to upper case.
end System.Case_Util;
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