1 ------------------------------------------------------------------------------
3 -- GNAT RUN-TIME COMPONENTS --
5 -- A D A . C O M M A N D _ L I N E . R E M O V E --
9 -- Copyright (C) 1999-2009, Free Software Foundation, Inc. --
11 -- GNAT is free software; you can redistribute it and/or modify it under --
12 -- terms of the GNU General Public License as published by the Free Soft- --
13 -- ware Foundation; either version 3, or (at your option) any later ver- --
14 -- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
15 -- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
16 -- or FITNESS FOR A PARTICULAR PURPOSE. --
18 -- As a special exception under Section 7 of GPL version 3, you are granted --
19 -- additional permissions described in the GCC Runtime Library Exception, --
20 -- version 3.1, as published by the Free Software Foundation. --
22 -- You should have received a copy of the GNU General Public License and --
23 -- a copy of the GCC Runtime Library Exception along with this program; --
24 -- see the files COPYING3 and COPYING.RUNTIME respectively. If not, see --
25 -- <http://www.gnu.org/licenses/>. --
27 -- GNAT was originally developed by the GNAT team at New York University. --
28 -- Extensive contributions were provided by Ada Core Technologies Inc. --
30 ------------------------------------------------------------------------------
32 package body Ada.Command_Line.Remove is
34 -----------------------
35 -- Local Subprograms --
36 -----------------------
39 -- Initialize the Remove_Count and Remove_Args variables
45 procedure Initialize is
47 if Remove_Args = null then
48 Remove_Count := Argument_Count;
49 Remove_Args := new Arg_Nums (1 .. Argument_Count);
51 for J in Remove_Args'Range loop
61 procedure Remove_Argument (Number : Positive) is
65 if Number > Remove_Count then
66 raise Constraint_Error;
69 Remove_Count := Remove_Count - 1;
71 for J in Number .. Remove_Count loop
72 Remove_Args (J) := Remove_Args (J + 1);
76 procedure Remove_Argument (Argument : String) is
78 for J in reverse 1 .. Argument_Count loop
79 if Argument = Ada.Command_Line.Argument (J) then
85 ----------------------
86 -- Remove_Arguments --
87 ----------------------
89 procedure Remove_Arguments (From : Positive; To : Natural) is
93 if From > Remove_Count
94 or else To > Remove_Count
96 raise Constraint_Error;
100 Remove_Count := Remove_Count - (To - From + 1);
102 for J in From .. Remove_Count loop
103 Remove_Args (J) := Remove_Args (J + (To - From + 1));
106 end Remove_Arguments;
108 procedure Remove_Arguments (Argument_Prefix : String) is
110 for J in reverse 1 .. Argument_Count loop
112 Arg : constant String := Argument (J);
115 if Arg'Length >= Argument_Prefix'Length
116 and then Arg (1 .. Argument_Prefix'Length) = Argument_Prefix
122 end Remove_Arguments;
124 end Ada.Command_Line.Remove;