-------------------------------------------------------------------------------
--- --
--- GNAT RUNTIME 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 --
--- --
--- $Revision: 1.1.16.1 $
--- --
--- Copyright (C) 1999 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, 59 Temple Place - Suite 330, Boston, --
--- MA 02111-1307, 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 : in 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;