/usr/share/ada/adainclude/gtkada/glib-unicode.adb is in libgtkada16.1.0-dev 17.0.2017-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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-- GtkAda - Ada95 binding for Gtk+/Gnome --
-- --
-- Copyright (C) 2003-2017, AdaCore --
-- --
-- This library is free software; you can redistribute it and/or modify it --
-- under terms of the GNU General Public License as published by the Free --
-- Software Foundation; either version 3, or (at your option) any later --
-- version. This library is distributed in the hope that it will be useful, --
-- but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHAN- --
-- TABILITY or FITNESS FOR A PARTICULAR PURPOSE. --
-- --
-- --
-- --
-- --
-- --
-- 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/>. --
-- --
------------------------------------------------------------------------------
with System; use System;
with System.Storage_Elements; use System.Storage_Elements;
with Interfaces.C.Strings; use Interfaces.C.Strings;
package body Glib.Unicode is
procedure C_Free (S : Interfaces.C.Strings.chars_ptr);
pragma Import (C, C_Free, "free");
-------------------
-- UTF8_Validate --
-------------------
procedure UTF8_Validate
(Str : UTF8_String;
Valid : out Boolean;
Invalid_Pos : out Natural)
is
function UTF8_Validate
(Str : UTF8_String;
Len : Gsize;
Invalid_Pos : access System.Address) return Gboolean;
pragma Import (C, UTF8_Validate, "g_utf8_validate");
Pos : aliased System.Address;
begin
Valid := UTF8_Validate (Str, Str'Length, Pos'Access) /= 0;
if Valid then
Invalid_Pos := 0;
else
Invalid_Pos := Natural (Pos - Str (Str'First)'Address) + Str'First;
end if;
end UTF8_Validate;
--------------
-- Is_Space --
--------------
function Is_Space (Char : Gunichar) return Boolean is
function Internal (Char : Gunichar) return Integer;
pragma Import (C, Internal, "g_unichar_isspace");
begin
return Boolean'Val (Internal (Char));
end Is_Space;
--------------
-- Is_Alnum --
--------------
function Is_Alnum (Char : Gunichar) return Boolean is
function Internal (Char : Gunichar) return Integer;
pragma Import (C, Internal, "g_unichar_isalnum");
begin
return Boolean'Val (Internal (Char));
end Is_Alnum;
--------------
-- Is_Alpha --
--------------
function Is_Alpha (Char : Gunichar) return Boolean is
function Internal (Char : Gunichar) return Integer;
pragma Import (C, Internal, "g_unichar_isalpha");
begin
return Boolean'Val (Internal (Char));
end Is_Alpha;
--------------
-- Is_Digit --
--------------
function Is_Digit (Char : Gunichar) return Boolean is
function Internal (Char : Gunichar) return Integer;
pragma Import (C, Internal, "g_unichar_isdigit");
begin
return Boolean'Val (Internal (Char));
end Is_Digit;
--------------
-- Is_Lower --
--------------
function Is_Lower (Char : Gunichar) return Boolean is
function Internal (Char : Gunichar) return Integer;
pragma Import (C, Internal, "g_unichar_islower");
begin
return Boolean'Val (Internal (Char));
end Is_Lower;
--------------
-- Is_Upper --
--------------
function Is_Upper (Char : Gunichar) return Boolean is
function Internal (Char : Gunichar) return Integer;
pragma Import (C, Internal, "g_unichar_isupper");
begin
return Boolean'Val (Internal (Char));
end Is_Upper;
--------------
-- Is_Punct --
--------------
function Is_Punct (Char : Gunichar) return Boolean is
function Internal (Char : Gunichar) return Integer;
pragma Import (C, Internal, "g_unichar_ispunct");
begin
return Boolean'Val (Internal (Char));
end Is_Punct;
------------------
-- UTF8_Strdown --
------------------
function UTF8_Strdown (Str : UTF8_String) return UTF8_String is
function Internal
(Str : UTF8_String; Len : Natural) return ICS.chars_ptr;
pragma Import (C, Internal, "g_utf8_strdown");
S : constant chars_ptr := Internal (Str, Str'Length);
Result : constant String := Value (S);
begin
C_Free (S);
return Result;
end UTF8_Strdown;
----------------
-- UTF8_Strup --
----------------
function UTF8_Strup (Str : UTF8_String) return UTF8_String is
function Internal
(Str : UTF8_String; Length : Natural) return ICS.chars_ptr;
pragma Import (C, Internal, "g_utf8_strup");
S : constant chars_ptr := Internal (Str, Str'Length);
Result : constant String := Value (S);
begin
C_Free (S);
return Result;
end UTF8_Strup;
--------------------
-- UTF8_Next_Char --
--------------------
type Byte is range 1 .. 6;
type Byte_Array is array (Character) of Byte;
UTF8_Skip_Data : constant Byte_Array :=
(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 1, 1);
function UTF8_Next_Char
(Str : UTF8_String; Index : Natural) return Natural is
begin
return Index + Natural (UTF8_Skip_Data (Str (Index)));
end UTF8_Next_Char;
-------------------------
-- UTF8_Find_Next_Char --
-------------------------
function UTF8_Find_Next_Char
(Str : UTF8_String; Index : Natural) return Natural
is
function Internal (Str, Str_End : System.Address) return System.Address;
pragma Import (C, Internal, "g_utf8_find_next_char");
Result : System.Address;
First : constant Natural := Str'First;
begin
Result := Internal
(Str (First)'Address + Storage_Offset (Index - First),
Str (First)'Address + Storage_Offset (Str'Length));
if Result = System.Null_Address then
return Str'Last + 1;
else
return Natural (Result - Str'Address + Storage_Offset (First));
end if;
end UTF8_Find_Next_Char;
-------------------------
-- UTF8_Find_Prev_Char --
-------------------------
function UTF8_Find_Prev_Char
(Str : UTF8_String; Index : Natural) return Natural
is
function Internal (Start, Str : System.Address) return System.Address;
pragma Import (C, Internal, "g_utf8_find_prev_char");
Result : System.Address;
First : constant Natural := Str'First;
begin
Result := Internal
(Str (First)'Address,
Str (First)'Address + Storage_Offset (Index - First));
if Result = System.Null_Address then
return First - 1;
else
return Natural (Result - Str'Address + Storage_Offset (First));
end if;
end UTF8_Find_Prev_Char;
---------------------
-- Unichar_To_UTF8 --
---------------------
procedure Unichar_To_UTF8
(C : Gunichar;
Buffer : out UTF8_String;
Last : out Natural)
is
function Internal (C : Gunichar; Buffer : System.Address) return Integer;
pragma Import (C, Internal, "g_unichar_to_utf8");
begin
Last := Internal (C, Buffer (Buffer'First)'Address) + Buffer'First - 1;
end Unichar_To_UTF8;
-------------------
-- UTF8_Get_Char --
-------------------
function UTF8_Get_Char (Str : UTF8_String) return Gunichar is
function Internal (Str : System.Address) return Gunichar;
pragma Import (C, Internal, "g_utf8_get_char");
begin
return Internal (Str'Address);
end UTF8_Get_Char;
-----------------------------
-- UTF8_Get_Char_Validated --
-----------------------------
function UTF8_Get_Char_Validated (Str : UTF8_String) return Gunichar is
function Internal (Str : System.Address) return Gunichar;
pragma Import (C, Internal, "g_utf8_get_char_validated");
begin
return Internal (Str'Address);
end UTF8_Get_Char_Validated;
-----------------
-- UTF8_Strlen --
-----------------
function UTF8_Strlen (Str : UTF8_String) return Glong is
function Internal (Str : System.Address; Max : Integer) return Glong;
pragma Import (C, Internal, "g_utf8_strlen");
begin
return Internal (Str'Address, Str'Length);
end UTF8_Strlen;
end Glib.Unicode;
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