aboutsummaryrefslogtreecommitdiffstats
path: root/gcc-4.8.3/gcc/ada/a-swuwti.adb
diff options
context:
space:
mode:
Diffstat (limited to 'gcc-4.8.3/gcc/ada/a-swuwti.adb')
-rw-r--r--gcc-4.8.3/gcc/ada/a-swuwti.adb161
1 files changed, 161 insertions, 0 deletions
diff --git a/gcc-4.8.3/gcc/ada/a-swuwti.adb b/gcc-4.8.3/gcc/ada/a-swuwti.adb
new file mode 100644
index 000000000..65f26cd8b
--- /dev/null
+++ b/gcc-4.8.3/gcc/ada/a-swuwti.adb
@@ -0,0 +1,161 @@
+------------------------------------------------------------------------------
+-- --
+-- GNAT RUN-TIME COMPONENTS --
+-- --
+-- ADA.STRINGS.WIDE_UNBOUNDED.WIDE_TEXT_IO --
+-- --
+-- 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.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 (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_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 (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_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;