| ------------------------------------------------------------------------------ |
| -- -- |
| -- GNAT RUN-TIME COMPONENTS -- |
| -- -- |
| -- ADA.STRINGS.WIDE_WIDE_UNBOUNDED.WIDE_WIDE_TEXT_IO -- |
| -- -- |
| -- B o d y -- |
| -- -- |
| -- Copyright (C) 1997-2022, 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.Wide_Wide_Text_IO; use Ada.Wide_Wide_Text_IO; |
| |
| package body Ada.Strings.Wide_Wide_Unbounded.Wide_Wide_Text_IO is |
| |
| -------------- |
| -- Get_Line -- |
| -------------- |
| |
| function Get_Line return Unbounded_Wide_Wide_String is |
| Buffer : Wide_Wide_String (1 .. 1000); |
| Last : Natural; |
| Str1 : Wide_Wide_String_Access; |
| Str2 : Wide_Wide_String_Access; |
| Result : Unbounded_Wide_Wide_String; |
| |
| begin |
| Get_Line (Buffer, Last); |
| Str1 := new Wide_Wide_String'(Buffer (1 .. Last)); |
| while Last = Buffer'Last loop |
| Get_Line (Buffer, Last); |
| Str2 := new Wide_Wide_String (1 .. Str1'Last + Last); |
| Str2 (Str1'Range) := Str1.all; |
| Str2 (Str1'Last + 1 .. Str2'Last) := 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_Wide_Text_IO.File_Type) return Unbounded_Wide_Wide_String |
| is |
| Buffer : Wide_Wide_String (1 .. 1000); |
| Last : Natural; |
| Str1 : Wide_Wide_String_Access; |
| Str2 : Wide_Wide_String_Access; |
| Result : Unbounded_Wide_Wide_String; |
| |
| begin |
| Get_Line (File, Buffer, Last); |
| Str1 := new Wide_Wide_String'(Buffer (1 .. Last)); |
| |
| while Last = Buffer'Last loop |
| Get_Line (File, Buffer, Last); |
| Str2 := new Wide_Wide_String (1 .. Str1'Last + Last); |
| Str2 (Str1'Range) := Str1.all; |
| Str2 (Str1'Last + 1 .. Str2'Last) := 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_Wide_String) is |
| begin |
| Get_Line (Current_Input, Item); |
| end Get_Line; |
| |
| procedure Get_Line |
| (File : Ada.Wide_Wide_Text_IO.File_Type; |
| Item : out Unbounded_Wide_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_Wide_String) is |
| begin |
| Put (U.Reference (1 .. U.Last)); |
| end Put; |
| |
| procedure Put (File : File_Type; U : Unbounded_Wide_Wide_String) is |
| begin |
| Put (File, U.Reference (1 .. U.Last)); |
| end Put; |
| |
| -------------- |
| -- Put_Line -- |
| -------------- |
| |
| procedure Put_Line (U : Unbounded_Wide_Wide_String) is |
| begin |
| Put_Line (U.Reference (1 .. U.Last)); |
| end Put_Line; |
| |
| procedure Put_Line (File : File_Type; U : Unbounded_Wide_Wide_String) is |
| begin |
| Put_Line (File, U.Reference (1 .. U.Last)); |
| end Put_Line; |
| |
| end Ada.Strings.Wide_Wide_Unbounded.Wide_Wide_Text_IO; |