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Diffstat (limited to 'gcc/ada/a-colire.ads')
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1 files changed, 83 insertions, 0 deletions
diff --git a/gcc/ada/a-colire.ads b/gcc/ada/a-colire.ads new file mode 100644 index 00000000000..59e77bd15dd --- /dev/null +++ b/gcc/ada/a-colire.ads @@ -0,0 +1,83 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUNTIME COMPONENTS -- +-- -- +-- A D A . C O M M A N D _ L I N E . R E M O V E -- +-- -- +-- S p e c -- +-- -- +-- $Revision: 1.1 $ +-- -- +-- 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. -- +-- It is now maintained by Ada Core Technologies Inc (http://www.gnat.com). -- +-- -- +------------------------------------------------------------------------------ + +-- This package is intended to be used in conjunction with its parent unit, +-- Ada.Command_Line. It provides facilities for logically removing arguments +-- from the command line, so that subsequent calls to Argument_Count and +-- Argument will reflect the removals. + +-- For example, if the original command line has three arguments A B C, so +-- that Argument_Count is initially three, then after removing B, the second +-- argument, Argument_Count will be 2, and Argument (2) will return C. + +package Ada.Command_Line.Remove is +pragma Preelaborate (Remove); + + procedure Remove_Argument (Number : in Positive); + -- Removes the argument identified by Number, which must be in the + -- range 1 .. Argument_Count (i.e. an in range argument number which + -- reflects removals). If Number is out of range Constraint_Error + -- will be raised. + -- + -- Note: the numbering of arguments greater than Number is affected + -- by the call. If you need a loop through the arguments, removing + -- some as you go, run the loop in reverse to avoid confusion from + -- this renumbering: + -- + -- for J in reverse 1 .. Argument_Count loop + -- if Should_Remove (Arguments (J)) then + -- Remove_Argument (J); + -- end if; + -- end loop; + -- + -- Reversing the loop in this manner avoids the confusion. + + procedure Remove_Arguments (From : Positive; To : Natural); + -- Removes arguments in the given From..To range. From must be in the + -- range 1 .. Argument_Count and To in the range 0 .. Argument_Count. + -- Constraint_Error is raised if either argument is out of range. If + -- To is less than From, then the call has no effect. + + procedure Remove_Argument (Argument : String); + -- Removes the argument which matches the given string Argument. Has + -- no effect if no argument matches the string. If more than one + -- argument matches the string, all are removed. + + procedure Remove_Arguments (Argument_Prefix : String); + -- Removes all arguments whose prefix matches Argument_Prefix. Has + -- no effect if no argument matches the string. For example a call + -- to Remove_Arguments ("--") removes all arguments starting with --. + +end Ada.Command_Line.Remove; |