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[/] [openrisc/] [tags/] [gnu-src/] [gcc-4.5.1/] [gcc-4.5.1-or32-1.0rc1/] [gcc/] [ada/] [a-suteio.adb] - Rev 338
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------------------------------------------------------------------------------ -- -- -- GNAT RUN-TIME COMPONENTS -- -- -- -- A D A . S T R I N G S . U N B O U N D E D . T E X T _ I O -- -- -- -- B o d y -- -- -- -- Copyright (C) 1997-2009, 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.Text_IO; use Ada.Text_IO; package body Ada.Strings.Unbounded.Text_IO is -------------- -- Get_Line -- -------------- function Get_Line return Unbounded_String is Buffer : String (1 .. 1000); Last : Natural; Str1 : String_Access; Str2 : String_Access; Result : Unbounded_String; begin Get_Line (Buffer, Last); Str1 := new String'(Buffer (1 .. Last)); while Last = Buffer'Last loop Get_Line (Buffer, Last); Str2 := new 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.Text_IO.File_Type) return Unbounded_String is Buffer : String (1 .. 1000); Last : Natural; Str1 : String_Access; Str2 : String_Access; Result : Unbounded_String; begin Get_Line (File, Buffer, Last); Str1 := new String'(Buffer (1 .. Last)); while Last = Buffer'Last loop Get_Line (File, Buffer, Last); Str2 := new 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_String) is begin Get_Line (Current_Input, Item); end Get_Line; procedure Get_Line (File : Ada.Text_IO.File_Type; Item : out Unbounded_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_String) is begin Put (U.Reference (1 .. U.Last)); end Put; procedure Put (File : File_Type; U : Unbounded_String) is begin Put (File, U.Reference (1 .. U.Last)); end Put; -------------- -- Put_Line -- -------------- procedure Put_Line (U : Unbounded_String) is begin Put_Line (U.Reference (1 .. U.Last)); end Put_Line; procedure Put_Line (File : File_Type; U : Unbounded_String) is begin Put_Line (File, U.Reference (1 .. U.Last)); end Put_Line; end Ada.Strings.Unbounded.Text_IO;