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jeremybenn |
------------------------------------------------------------------------------
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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) 1999-2009, 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 3, 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. --
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-- --
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-- As a special exception under Section 7 of GPL version 3, you are granted --
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-- additional permissions described in the GCC Runtime Library Exception, --
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-- version 3.1, as published by the Free Software Foundation. --
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-- --
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-- You should have received a copy of the GNU General Public License and --
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-- a copy of the GCC Runtime Library Exception along with this program; --
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-- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
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-- <http://www.gnu.org/licenses/>. --
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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 : 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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