101 lines
5.4 KiB
Ada
101 lines
5.4 KiB
Ada
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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 S P O N S E _ F I L E --
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-- --
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-- S p e c --
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-- --
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-- Copyright (C) 2007-2013, 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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-- This package is intended to be used in conjunction with its parent unit,
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-- Ada.Command_Line. It provides facilities for getting command line arguments
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-- from a text file, called a "response file".
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--
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-- Using a response file allow passing a set of arguments to an executable
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-- longer than the maximum allowed by the system on the command line.
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pragma Compiler_Unit_Warning;
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with System.Strings;
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package Ada.Command_Line.Response_File is
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subtype String_Access is System.Strings.String_Access;
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-- type String_Access is access all String;
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procedure Free (S : in out String_Access) renames System.Strings.Free;
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-- To deallocate a String
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subtype Argument_List is System.Strings.String_List;
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-- type String_List is array (Positive range <>) of String_Access;
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Max_Line_Length : constant := 4096;
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-- The maximum length of lines in a response file
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File_Does_Not_Exist : exception;
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-- Raise by Arguments_From when a response file cannot be found
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Line_Too_Long : exception;
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-- Raise by Arguments_From when a line in the response file is longer than
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-- Max_Line_Length.
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No_Closing_Quote : exception;
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-- Raise by Arguments_From when a quoted string does not end before the
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-- end of the line.
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Circularity_Detected : exception;
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-- Raise by Arguments_From when Recursive is True and the same response
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-- file is reading itself, either directly or indirectly.
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function Arguments_From
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(Response_File_Name : String;
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Recursive : Boolean := False;
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Ignore_Non_Existing_Files : Boolean := False)
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return Argument_List;
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-- Read response file with name Response_File_Name and return the argument
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-- it contains as an Argument_List. It is the responsibility of the caller
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-- to deallocate the strings in the Argument_List if desired. When
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-- Recursive is True, any argument of the form @file_name indicates the
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-- name of another response file and is replaced by the arguments in this
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-- response file.
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--
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-- Each non empty line of the response file contains one or several
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-- arguments separated by white space. Empty lines or lines containing only
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-- white space are ignored. Arguments containing white space or a double
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-- quote ('"')must be quoted. A double quote inside a quote string is
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-- indicated by two consecutive double quotes. Example: "-Idir with quote
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-- "" and spaces" Non white space characters immediately before or after a
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-- quoted string are part of the same argument. Example -Idir" with "spaces
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--
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-- When a response file cannot be found, exception File_Does_Not_Exist is
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-- raised if Ignore_Non_Existing_Files is False, otherwise the response
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-- file is ignored. Exception Line_Too_Long is raised when a line of a
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-- response file is longer than Max_Line_Length. Exception No_Closing_Quote
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-- is raised when a quoted argument is not closed before the end of the
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-- line. Exception Circularity_Detected is raised when a Recursive is True
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-- and a response file is reading itself, either directly or indirectly.
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end Ada.Command_Line.Response_File;
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