------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- ADA.STRINGS.TEXT_BUFFERS.UTILS --
-- --
-- S p e c --
-- --
-- Copyright (C) 2020-2023, 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. --
-- --
------------------------------------------------------------------------------
with Ada.Strings.UTF_Encoding.Wide_Wide_Strings;
package Ada.Strings.Text_Buffers.Utils with Pure is
-- Ada.Strings.Text_Buffers is a predefined unit (see Ada RM A.4.12).
-- This is a GNAT-defined child unit of that parent.
subtype Character_7 is
Character range Character'Val (0) .. Character'Val (2**7 - 1);
procedure Put_7bit
(Buffer : in out Root_Buffer_Type'Class; Item : Character_7);
procedure Put_Character
(Buffer : in out Root_Buffer_Type'Class; Item : Character);
procedure Put_Wide_Character
(Buffer : in out Root_Buffer_Type'Class; Item : Wide_Character);
procedure Put_Wide_Wide_Character
(Buffer : in out Root_Buffer_Type'Class; Item : Wide_Wide_Character);
-- Single character output procedures.
function Column (Buffer : Root_Buffer_Type'Class) return Positive with
Inline;
-- Current output column. The Column is initially 1, and is incremented for
-- each 8-bit character output. A call to New_Line sets Column back to 1.
-- The next character to be output will go in this column.
procedure Tab_To_Column
(Buffer : in out Root_Buffer_Type'Class; Column : Positive);
-- Put spaces until we're at or past Column.
subtype Sink is Root_Buffer_Type;
function NL return Character is (ASCII.LF) with Inline;
function UTF_8_Length (Buffer : Root_Buffer_Type'Class) return Natural;
subtype UTF_8_Lines is UTF_Encoding.UTF_8_String with
Predicate =>
UTF_Encoding.Wide_Wide_Strings.Encode
(UTF_Encoding.Wide_Wide_Strings.Decode (UTF_8_Lines)) = UTF_8_Lines;
subtype UTF_8 is UTF_8_Lines with
Predicate => (for all UTF_8_Char of UTF_8 => UTF_8_Char /= NL);
procedure Put_UTF_8_Lines
(Buffer : in out Root_Buffer_Type'Class; Item : UTF_8_Lines);
private
function UTF_8_Length (Buffer : Root_Buffer_Type'Class) return Natural
is (Buffer.UTF_8_Length);
end Ada.Strings.Text_Buffers.Utils;