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------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- ADA.STRINGS.WIDE_UNBOUNDED.WIDE_TEXT_IO --
-- --
-- B o d y --
-- --
-- Copyright (C) 1997-2005 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 2, 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. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNAT; see file COPYING. If not, write --
-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
-- Boston, MA 02110-1301, USA. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- this unit does not by itself cause the resulting executable to be --
-- covered by the GNU General Public License. This exception does not --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
with Ada.Wide_Text_IO; use Ada.Wide_Text_IO;
package body Ada.Strings.Wide_Unbounded.Wide_Text_IO is
--------------
-- Get_Line --
--------------
function Get_Line return Unbounded_Wide_String is
Buffer : Wide_String (1 .. 1000);
Last : Natural;
Str1 : Wide_String_Access;
Str2 : Wide_String_Access;
Result : Unbounded_Wide_String;
begin
Get_Line (Buffer, Last);
Str1 := new Wide_String'(Buffer (1 .. Last));
while Last = Buffer'Last loop
Get_Line (Buffer, Last);
Str2 := new Wide_String'(Str1.all & Buffer (1 .. Last));
Free (Str1);
Str1 := Str2;
end loop;
Result.Reference := Str1;
Result.Last := Str1'Length;
return Result;
end Get_Line;
function Get_Line
(File : Ada.Wide_Text_IO.File_Type) return Unbounded_Wide_String
is
Buffer : Wide_String (1 .. 1000);
Last : Natural;
Str1 : Wide_String_Access;
Str2 : Wide_String_Access;
Result : Unbounded_Wide_String;
begin
Get_Line (File, Buffer, Last);
Str1 := new Wide_String'(Buffer (1 .. Last));
while Last = Buffer'Last loop
Get_Line (File, Buffer, Last);
Str2 := new Wide_String'(Str1.all & Buffer (1 .. Last));
Free (Str1);
Str1 := Str2;
end loop;
Result.Reference := Str1;
Result.Last := Str1'Length;
return Result;
end Get_Line;
procedure Get_Line (Item : out Unbounded_Wide_String) is
begin
Get_Line (Current_Input, Item);
end Get_Line;
procedure Get_Line
(File : Ada.Wide_Text_IO.File_Type;
Item : out Unbounded_Wide_String)
is
begin
-- We are going to read into the string that is already there and
-- allocated. Hopefully it is big enough now, if not, we will extend
-- it in the usual manner using Realloc_For_Chunk.
-- Make sure we start with at least 80 characters
if Item.Reference'Last < 80 then
Realloc_For_Chunk (Item, 80);
end if;
-- Loop to read data, filling current string as far as possible.
-- Item.Last holds the number of characters read so far.
Item.Last := 0;
loop
Get_Line
(File,
Item.Reference (Item.Last + 1 .. Item.Reference'Last),
Item.Last);
-- If we hit the end of the line before the end of the buffer, then
-- we are all done, and the result length is properly set.
if Item.Last < Item.Reference'Last then
return;
end if;
-- If not enough room, double it and keep reading
Realloc_For_Chunk (Item, Item.Last);
end loop;
end Get_Line;
---------
-- Put --
---------
procedure Put (U : Unbounded_Wide_String) is
begin
Put (U.Reference (1 .. U.Last));
end Put;
procedure Put (File : File_Type; U : Unbounded_Wide_String) is
begin
Put (File, U.Reference (1 .. U.Last));
end Put;
--------------
-- Put_Line --
--------------
procedure Put_Line (U : Unbounded_Wide_String) is
begin
Put_Line (U.Reference (1 .. U.Last));
end Put_Line;
procedure Put_Line (File : File_Type; U : Unbounded_Wide_String) is
begin
Put_Line (File, U.Reference (1 .. U.Last));
end Put_Line;
end Ada.Strings.Wide_Unbounded.Wide_Text_IO;
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