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Diffstat (limited to 'gcc-4.7/gcc/ada/a-colire.ads')
| -rw-r--r-- | gcc-4.7/gcc/ada/a-colire.ads | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/gcc-4.7/gcc/ada/a-colire.ads b/gcc-4.7/gcc/ada/a-colire.ads new file mode 100644 index 000000000..a45450925 --- /dev/null +++ b/gcc-4.7/gcc/ada/a-colire.ads @@ -0,0 +1,79 @@ +------------------------------------------------------------------------------ +-- -- +-- GNAT RUN-TIME 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 -- +-- -- +-- 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. -- +-- -- +------------------------------------------------------------------------------ + +-- 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; + + procedure Remove_Argument (Number : 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; |