projects / thirdparty / gcc.git / blame
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|---|---|---|
| 10e77af2 VC |
1 | ------------------------------------------------------------------------------ |
| 2 | -- -- | |
| 3 | -- GNAT RUN-TIME COMPONENTS -- | |
| 4 | -- -- | |
| 5 | -- 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 -- | |
| 6 | -- -- | |
| 7 | -- S p e c -- | |
| 8 | -- -- | |
| 9 | -- Copyright (C) 2007, Free Software Foundation, Inc. -- | |
| 10 | -- -- | |
| 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 2, 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. See the GNU General Public License -- | |
| 17 | -- for more details. You should have received a copy of the GNU General -- | |
| 18 | -- Public License distributed with GNAT; see file COPYING. If not, write -- | |
| 19 | -- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, -- | |
| 20 | -- Boston, MA 02110-1301, USA. -- | |
| 21 | -- -- | |
| 22 | -- As a special exception, if other files instantiate generics from this -- | |
| 23 | -- unit, or you link this unit with other files to produce an executable, -- | |
| 24 | -- this unit does not by itself cause the resulting executable to be -- | |
| 25 | -- covered by the GNU General Public License. This exception does not -- | |
| 26 | -- however invalidate any other reasons why the executable file might be -- | |
| 27 | -- covered by the GNU Public License. -- | |
| 28 | -- -- | |
| 29 | -- GNAT was originally developed by the GNAT team at New York University. -- | |
| 30 | -- Extensive contributions were provided by Ada Core Technologies Inc. -- | |
| 31 | -- -- | |
| 32 | ------------------------------------------------------------------------------ | |
| 33 | ||
| 34 | -- This package is intended to be used in conjunction with its parent unit, | |
| 35 | -- Ada.Command_Line. It provides facilities for getting command line arguments | |
| 36 | -- from a text file, called a "response file". | |
| 37 | -- | |
| 38 | -- Using a response file allow passing a set of arguments to an executable | |
| 39 | -- longer than the maximum allowed by the system on the command line. | |
| 40 | ||
| 41 | with System.Strings; | |
| 42 | ||
| 43 | package Ada.Command_Line.Response_File is | |
| 44 | ||
| 45 | subtype String_Access is System.Strings.String_Access; | |
| 46 | -- type String_Access is access all String; | |
| 47 | ||
| 48 | procedure Free (S : in out String_Access) renames System.Strings.Free; | |
| 49 | -- To deallocate a String | |
| 50 | ||
| 51 | subtype Argument_List is System.Strings.String_List; | |
| 52 | -- type String_List is array (Positive range <>) of String_Access; | |
| 53 | ||
| 54 | Max_Line_Length : constant := 4096; | |
| 55 | -- The maximum length of lines in a response file | |
| 56 | ||
| 57 | File_Does_Not_Exist : exception; | |
| 58 | -- Raise by Arguments_From when a response file cannot be found | |
| 59 | ||
| 60 | Line_Too_Long : exception; | |
| 61 | -- Raise by Arguments_From when a line in the response file is longer than | |
| 62 | -- Max_Line_Length. | |
| 63 | ||
| 64 | No_Closing_Quote : exception; | |
| 65 | -- Raise by Arguments_From when a quoted string does not end before the | |
| 66 | -- end of the line. | |
| 67 | ||
| 68 | Circularity_Detected : exception; | |
| 69 | -- Raise by Arguments_From when Recursive is True and the same response | |
| 70 | -- file is reading itself, either directly or indirectly. | |
| 71 | ||
| 72 | function Arguments_From | |
| 73 | (Response_File_Name : String; | |
| 74 | Recursive : Boolean := False; | |
| 75 | Ignore_Non_Existing_Files : Boolean := False) | |
| 76 | return Argument_List; | |
| 77 | -- Read response file with name Response_File_Name and return the argument | |
| 78 | -- it contains as an Argument_List. It is the responsibility of the caller | |
| 79 | -- to deallocate the strings in the Argument_List if desired. When | |
| 80 | -- Recursive is True, any argument of the form @file_name indicates the | |
| 81 | -- name of another response file and is replaced by the arguments in this | |
| 82 | -- response file. | |
| 83 | -- | |
| 84 | -- Each non empty line of the response file contains one or several | |
| 85 | -- arguments sparated by white space. Empty lines or lines containing only | |
| 86 | -- white space are ignored. Arguments containing white space or a double | |
| 87 | -- quote ('"')must be quoted. A double quote inside a quote string is | |
| 88 | -- indicated by two consecutive double quotes. Example: "-Idir with quote | |
| 89 | -- "" and spaces" Non white space characters immediately before or after a | |
| 90 | -- quoted string are part of the same argument. Example -Idir" with "spaces | |
| 91 | -- | |
| 92 | -- When a response file cannot be found, exception File_Does_Not_Exist is | |
| 93 | -- raised if Ignore_Non_Existing_Files is False, otherwise the response | |
| 94 | -- file is ignored. Exception Line_Too_Long is raised when a line of a | |
| 95 | -- response file is longer than Max_Line_Length. Exception No_Closing_Quote | |
| 96 | -- is raised when a quoted argument is not closed before the end of the | |
| 97 | -- line. Exception Circularity_Detected is raised when a Recursive is True | |
| 98 | -- and a response file is reading itself, either directly or indirectly. | |
| 99 | ||
| 100 | end Ada.Command_Line.Response_File; |