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+------------------------------------------------------------------------------
+-- --
+-- GNAT RUN-TIME COMPONENTS --
+-- --
+-- A D A . C O M M A N D _ L I N E . R E M O V E --
+-- --
+-- B o d y --
+-- --
+-- Copyright (C) 1999-2006, 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. --
+-- --
+------------------------------------------------------------------------------
+
+package body Ada.Command_Line.Remove is
+
+ -----------------------
+ -- Local Subprograms --
+ -----------------------
+
+ procedure Initialize;
+ -- Initialize the Remove_Count and Remove_Args variables
+
+ ----------------
+ -- Initialize --
+ ----------------
+
+ procedure Initialize is
+ begin
+ if Remove_Args = null then
+ Remove_Count := Argument_Count;
+ Remove_Args := new Arg_Nums (1 .. Argument_Count);
+
+ for J in Remove_Args'Range loop
+ Remove_Args (J) := J;
+ end loop;
+ end if;
+ end Initialize;
+
+ ---------------------
+ -- Remove_Argument --
+ ---------------------
+
+ procedure Remove_Argument (Number : Positive) is
+ begin
+ Initialize;
+
+ if Number > Remove_Count then
+ raise Constraint_Error;
+ end if;
+
+ Remove_Count := Remove_Count - 1;
+
+ for J in Number .. Remove_Count loop
+ Remove_Args (J) := Remove_Args (J + 1);
+ end loop;
+ end Remove_Argument;
+
+ procedure Remove_Argument (Argument : String) is
+ begin
+ for J in reverse 1 .. Argument_Count loop
+ if Argument = Ada.Command_Line.Argument (J) then
+ Remove_Argument (J);
+ end if;
+ end loop;
+ end Remove_Argument;
+
+ ----------------------
+ -- Remove_Arguments --
+ ----------------------
+
+ procedure Remove_Arguments (From : Positive; To : Natural) is
+ begin
+ Initialize;
+
+ if From > Remove_Count
+ or else To > Remove_Count
+ then
+ raise Constraint_Error;
+ end if;
+
+ if To >= From then
+ Remove_Count := Remove_Count - (To - From + 1);
+
+ for J in From .. Remove_Count loop
+ Remove_Args (J) := Remove_Args (J + (To - From + 1));
+ end loop;
+ end if;
+ end Remove_Arguments;
+
+ procedure Remove_Arguments (Argument_Prefix : String) is
+ begin
+ for J in reverse 1 .. Argument_Count loop
+ declare
+ Arg : constant String := Argument (J);
+
+ begin
+ if Arg'Length >= Argument_Prefix'Length
+ and then Arg (1 .. Argument_Prefix'Length) = Argument_Prefix
+ then
+ Remove_Argument (J);
+ end if;
+ end;
+ end loop;
+ end Remove_Arguments;
+
+end Ada.Command_Line.Remove;