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------------------------------------------------------------------------------
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-- --
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-- GNAT RUN-TIME COMPONENTS --
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-- --
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-- A D A . C O M M A N D _ L I N E . R E M O V E --
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-- --
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-- B o d y --
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-- --
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-- Copyright (C) 1999-2005, Free Software Foundation, Inc. --
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-- --
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-- GNAT is free software; you can redistribute it and/or modify it under --
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-- terms of the GNU General Public License as published by the Free Soft- --
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-- ware Foundation; either version 2, or (at your option) any later ver- --
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-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
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-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
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-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
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-- for more details. You should have received a copy of the GNU General --
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-- Public License distributed with GNAT; see file COPYING. If not, write --
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-- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, --
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-- Boston, MA 02110-1301, USA. --
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-- --
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-- As a special exception, if other files instantiate generics from this --
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-- unit, or you link this unit with other files to produce an executable, --
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-- this unit does not by itself cause the resulting executable to be --
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-- covered by the GNU General Public License. This exception does not --
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-- however invalidate any other reasons why the executable file might be --
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-- covered by the GNU Public License. --
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-- --
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-- GNAT was originally developed by the GNAT team at New York University. --
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-- Extensive contributions were provided by Ada Core Technologies Inc. --
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-- --
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------------------------------------------------------------------------------
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package body Ada.Command_Line.Remove is
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-----------------------
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-- Local Subprograms --
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-----------------------
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procedure Initialize;
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-- Initialize the Remove_Count and Remove_Args variables
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----------------
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-- Initialize --
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----------------
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procedure Initialize is
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begin
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if Remove_Args = null then
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Remove_Count := Argument_Count;
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Remove_Args := new Arg_Nums (1 .. Argument_Count);
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for J in Remove_Args'Range loop
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Remove_Args (J) := J;
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end loop;
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end if;
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end Initialize;
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---------------------
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-- Remove_Argument --
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---------------------
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procedure Remove_Argument (Number : in Positive) is
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begin
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Initialize;
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if Number > Remove_Count then
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raise Constraint_Error;
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end if;
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Remove_Count := Remove_Count - 1;
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for J in Number .. Remove_Count loop
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Remove_Args (J) := Remove_Args (J + 1);
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end loop;
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end Remove_Argument;
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procedure Remove_Argument (Argument : String) is
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begin
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for J in reverse 1 .. Argument_Count loop
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if Argument = Ada.Command_Line.Argument (J) then
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Remove_Argument (J);
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end if;
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end loop;
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end Remove_Argument;
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----------------------
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-- Remove_Arguments --
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----------------------
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procedure Remove_Arguments (From : Positive; To : Natural) is
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begin
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Initialize;
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if From > Remove_Count
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or else To > Remove_Count
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then
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raise Constraint_Error;
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end if;
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if To >= From then
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Remove_Count := Remove_Count - (To - From + 1);
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for J in From .. Remove_Count loop
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Remove_Args (J) := Remove_Args (J + (To - From + 1));
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end loop;
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end if;
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end Remove_Arguments;
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procedure Remove_Arguments (Argument_Prefix : String) is
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begin
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for J in reverse 1 .. Argument_Count loop
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declare
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Arg : constant String := Argument (J);
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begin
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if Arg'Length >= Argument_Prefix'Length
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and then Arg (1 .. Argument_Prefix'Length) = Argument_Prefix
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then
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Remove_Argument (J);
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end if;
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end;
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end loop;
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end Remove_Arguments;
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end Ada.Command_Line.Remove;
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