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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) 1999-2009, 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. --
-- --
------------------------------------------------------------------------------
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;
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