598 lines
22 KiB
Prolog
598 lines
22 KiB
Prolog
%%% -*- Mode: Prolog; -*-
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% $Date: 2010-12-02 15:20:15 +0100 (Thu, 02 Dec 2010) $
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% $Revision: 5043 $
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%
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% This file is part of ProbLog
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% http://dtai.cs.kuleuven.be/problog
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%
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% ProbLog was developed at Katholieke Universiteit Leuven
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%
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% Copyright 2008, 2009, 2010
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% Katholieke Universiteit Leuven
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%
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% Main authors of this file:
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% Theofrastos Mantadelis
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%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% Artistic License 2.0
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%
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% Copyright (c) 2000-2006, The Perl Foundation.
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%
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% Everyone is permitted to copy and distribute verbatim copies of this
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% license document, but changing it is not allowed. Preamble
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%
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% This license establishes the terms under which a given free software
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% Package may be copied, modified, distributed, and/or
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% redistributed. The intent is that the Copyright Holder maintains some
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% artistic control over the development of that Package while still
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% keeping the Package available as open source and free software.
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%
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% You are always permitted to make arrangements wholly outside of this
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% license directly with the Copyright Holder of a given Package. If the
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% terms of this license do not permit the full use that you propose to
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% make of the Package, you should contact the Copyright Holder and seek
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% a different licensing arrangement. Definitions
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%
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% "Copyright Holder" means the individual(s) or organization(s) named in
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% the copyright notice for the entire Package.
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%
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% "Contributor" means any party that has contributed code or other
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% material to the Package, in accordance with the Copyright Holder's
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% procedures.
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%
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% "You" and "your" means any person who would like to copy, distribute,
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% or modify the Package.
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%
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% "Package" means the collection of files distributed by the Copyright
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% Holder, and derivatives of that collection and/or of those files. A
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% given Package may consist of either the Standard Version, or a
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% Modified Version.
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%
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% "Distribute" means providing a copy of the Package or making it
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% accessible to anyone else, or in the case of a company or
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% organization, to others outside of your company or organization.
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%
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% "Distributor Fee" means any fee that you charge for Distributing this
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% Package or providing support for this Package to another party. It
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% does not mean licensing fees.
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%
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% "Standard Version" refers to the Package if it has not been modified,
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% or has been modified only in ways explicitly requested by the
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% Copyright Holder.
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%
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% "Modified Version" means the Package, if it has been changed, and such
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% changes were not explicitly requested by the Copyright Holder.
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%
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% "Original License" means this Artistic License as Distributed with the
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% Standard Version of the Package, in its current version or as it may
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% be modified by The Perl Foundation in the future.
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%
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% "Source" form means the source code, documentation source, and
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% configuration files for the Package.
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%
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% "Compiled" form means the compiled bytecode, object code, binary, or
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% any other form resulting from mechanical transformation or translation
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% of the Source form.
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%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% Permission for Use and Modification Without Distribution
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%
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% (1) You are permitted to use the Standard Version and create and use
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% Modified Versions for any purpose without restriction, provided that
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% you do not Distribute the Modified Version.
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%
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% Permissions for Redistribution of the Standard Version
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%
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% (2) You may Distribute verbatim copies of the Source form of the
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% Standard Version of this Package in any medium without restriction,
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% either gratis or for a Distributor Fee, provided that you duplicate
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% all of the original copyright notices and associated disclaimers. At
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% your discretion, such verbatim copies may or may not include a
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% Compiled form of the Package.
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%
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% (3) You may apply any bug fixes, portability changes, and other
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% modifications made available from the Copyright Holder. The resulting
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% Package will still be considered the Standard Version, and as such
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% will be subject to the Original License.
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%
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% Distribution of Modified Versions of the Package as Source
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%
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% (4) You may Distribute your Modified Version as Source (either gratis
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% or for a Distributor Fee, and with or without a Compiled form of the
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% Modified Version) provided that you clearly document how it differs
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% from the Standard Version, including, but not limited to, documenting
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% any non-standard features, executables, or modules, and provided that
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% you do at least ONE of the following:
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%
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% (a) make the Modified Version available to the Copyright Holder of the
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% Standard Version, under the Original License, so that the Copyright
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% Holder may include your modifications in the Standard Version. (b)
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% ensure that installation of your Modified Version does not prevent the
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% user installing or running the Standard Version. In addition, the
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% modified Version must bear a name that is different from the name of
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% the Standard Version. (c) allow anyone who receives a copy of the
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% Modified Version to make the Source form of the Modified Version
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% available to others under (i) the Original License or (ii) a license
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% that permits the licensee to freely copy, modify and redistribute the
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% Modified Version using the same licensing terms that apply to the copy
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% that the licensee received, and requires that the Source form of the
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% Modified Version, and of any works derived from it, be made freely
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% available in that license fees are prohibited but Distributor Fees are
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% allowed.
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%
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% Distribution of Compiled Forms of the Standard Version or
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% Modified Versions without the Source
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%
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% (5) You may Distribute Compiled forms of the Standard Version without
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% the Source, provided that you include complete instructions on how to
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% get the Source of the Standard Version. Such instructions must be
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% valid at the time of your distribution. If these instructions, at any
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% time while you are carrying out such distribution, become invalid, you
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% must provide new instructions on demand or cease further
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% distribution. If you provide valid instructions or cease distribution
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% within thirty days after you become aware that the instructions are
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% invalid, then you do not forfeit any of your rights under this
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% license.
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%
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% (6) You may Distribute a Modified Version in Compiled form without the
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% Source, provided that you comply with Section 4 with respect to the
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% Source of the Modified Version.
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%
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% Aggregating or Linking the Package
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%
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% (7) You may aggregate the Package (either the Standard Version or
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% Modified Version) with other packages and Distribute the resulting
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% aggregation provided that you do not charge a licensing fee for the
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% Package. Distributor Fees are permitted, and licensing fees for other
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% components in the aggregation are permitted. The terms of this license
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% apply to the use and Distribution of the Standard or Modified Versions
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% as included in the aggregation.
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%
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% (8) You are permitted to link Modified and Standard Versions with
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% other works, to embed the Package in a larger work of your own, or to
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% build stand-alone binary or bytecode versions of applications that
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% include the Package, and Distribute the result without restriction,
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% provided the result does not expose a direct interface to the Package.
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%
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% Items That are Not Considered Part of a Modified Version
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%
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% (9) Works (including, but not limited to, modules and scripts) that
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% merely extend or make use of the Package, do not, by themselves, cause
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% the Package to be a Modified Version. In addition, such works are not
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% considered parts of the Package itself, and are not subject to the
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% terms of this license.
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%
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% General Provisions
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%
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% (10) Any use, modification, and distribution of the Standard or
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% Modified Versions is governed by this Artistic License. By using,
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% modifying or distributing the Package, you accept this license. Do not
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% use, modify, or distribute the Package, if you do not accept this
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% license.
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%
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% (11) If your Modified Version has been derived from a Modified Version
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% made by someone other than you, you are nevertheless required to
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% ensure that your Modified Version complies with the requirements of
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% this license.
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%
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% (12) This license does not grant you the right to use any trademark,
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% service mark, tradename, or logo of the Copyright Holder.
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%
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% (13) This license includes the non-exclusive, worldwide,
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% free-of-charge patent license to make, have made, use, offer to sell,
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% sell, import and otherwise transfer the Package with respect to any
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% patent claims licensable by the Copyright Holder that are necessarily
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% infringed by the Package. If you institute patent litigation
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% (including a cross-claim or counterclaim) against any party alleging
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% that the Package constitutes direct or contributory patent
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% infringement, then this Artistic License to you shall terminate on the
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% date that such litigation is filed.
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%
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% (14) Disclaimer of Warranty: THE PACKAGE IS PROVIDED BY THE COPYRIGHT
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% HOLDER AND CONTRIBUTORS "AS IS' AND WITHOUT ANY EXPRESS OR IMPLIED
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% WARRANTIES. THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
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% PARTICULAR PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED TO THE EXTENT
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% PERMITTED BY YOUR LOCAL LAW. UNLESS REQUIRED BY LAW, NO COPYRIGHT
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% HOLDER OR CONTRIBUTOR WILL BE LIABLE FOR ANY DIRECT, INDIRECT,
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% INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING IN ANY WAY OUT OF THE USE
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% OF THE PACKAGE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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%
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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% To define flags do: defined_flag(Flag, Type, Description, DefaultValue).
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% Available predifined types:
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% flag_validate_dummy
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% flag_validate_atom
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% flag_validate_atomic
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% flag_validate_number
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% flag_validate_integer
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% flag_validate_directory
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% flag_validate_file
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% flag_validate_in_list(L)
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% flag_validate_in_interval(I, Type)
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% flag_validate_in_interval_closed(I)
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% flag_validate_in_interval_open(I)
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% flag_validate_in_interval_left_open(I)
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% flag_validate_in_interval_right_open(I)
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% flag_validate_integer_in_interval_closed(I)
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% flag_validate_integer_in_interval_open(I)
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% flag_validate_integer_in_interval_left_open(I)
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% flag_validate_integer_in_interval_right_open(I)
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% flag_validate_float_in_interval_closed(I)
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% flag_validate_float_in_interval_open(I)
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% flag_validate_float_in_interval_left_open(I)
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% flag_validate_float_in_interval_right_open(I)
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% flag_validate_posnumber
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% flag_validate_posint
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% flag_validate_nonegint
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% flag_validate_boolean
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% flag_validate_switch
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%
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:-module(gflags, [flag_define/4,
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flag_define/5,
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flag_define/6,
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flag_add_validation_syntactic_sugar/2,
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flag_group_defined/1, % messaging purposes
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flag_defined/5, % messaging purposes
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flag_set/2,
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flag_store/2, % sets flag with no validation, useful for handler
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flag_get/2,
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flags_reset/0]).
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:- use_module(library(lists), [append/3, memberchk/2, reverse/2]).
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:- use_module(library(system), [delete_file/1, file_exists/1, file_property/2, make_directory/1]). % for file operations
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flag_define(Flag, Type, DefaultValue, Message):-
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flag_define(Flag, general, Type, DefaultValue, flags:true, Message).
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flag_define(Flag, Group, Type, DefaultValue, Message):-
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flag_define(Flag, Group, Type, DefaultValue, flags:true, Message).
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flag_define(Flag, Group, Type, DefaultValue, Handler, Message):-
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recorded(flags, defined_flag(Flag, _Group, _Type, _DefaultValue, _Handler, _Message), _Ref),
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throw(duplicate_flag_definition(flag_define(Flag, Group, Type, DefaultValue, Handler, Message))).
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flag_define(Flag, Group, Type, DefaultValue, Handler, Message):-
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(catch(Type, _, fail)->
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fail
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;
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\+ (flag_validation_syntactic_sugar(Type, SyntacticSugar), catch(SyntacticSugar, _, fail)),
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throw(unknown_flag_type(flag_define(Flag, Group, Type, DefaultValue, Handler, Message)))
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).
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flag_define(Flag, Group, Type, DefaultValue, Handler, Message):-
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\+ Handler = _M:_Atom,
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throw(non_module_aware_flag_handler(flag_define(Flag, Group, Type, DefaultValue, Handler, Message))).
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flag_define(Flag, Group, Type, DefaultValue, M:Handler, Message):-
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\+ (callable(Handler), atom(Handler), atom(M)),
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throw(non_callable_atom_flag_handler(flag_define(Flag, Group, Type, DefaultValue, M:Handler, Message))).
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flag_define(Flag, Group, Type, DefaultValue, Handler, Message):-
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\+ flag_validate(Flag, DefaultValue, Type, Handler),
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throw(erroneous_flag_default_value(flag_define(Flag, Group, Type, DefaultValue, Handler, Message))).
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flag_define(_Flag, Group, Type, DefaultValue, Handler, Message):-
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\+ Group == general,
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(var(Group) ->
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throw(erroneous_flag_group(flag_define(_Flag, Group, Type, DefaultValue, Handler, Message)))
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;
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recordzifnot(flags, flag_group(Group), _Ref),
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fail
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).
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flag_define(Flag, Group, Type, DefaultValue, Handler, Message):-
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recordz(flags, defined_flag(Flag, Group, Type, DefaultValue, Handler, Message), Ref),
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(catch(flag_set(Flag, DefaultValue), Exception, (erase(Ref), throw(Exception))) ->
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true
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;
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erase(Ref),
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throw(handler_error(flag_define(Flag, Group, Type, DefaultValue, Handler, Message)))
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).
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flag_group_defined(general).
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flag_group_defined(Group):-
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recorded(flags, flag_group(Group), _Ref).
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flag_defined(Flag, Group, DefaultValue, Domain, Message):-
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recorded(flags, defined_flag(Flag, Group, Type, DefaultValue, Handler, Message), _Ref),
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flag_get_domain_message(Type, Handler, Domain).
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flag_get_domain_message(Type, M:Handler, Message):-
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validation_type_values(Type, Domain),
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(Handler == true ->
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Message = Domain
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;
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Goal =.. [Handler, message, CustomDomain],
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call(M:Goal),
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((nonvar(CustomDomain), CustomDomain \= '') ->
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(Domain == '' ->
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Message = CustomDomain
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;
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atomic_concat([CustomDomain, '/', Domain], Message)
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)
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;
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Message = Domain
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)
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).
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flag_set(Flag, _Value):-
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var(Flag), throw(not_defined_flag_exception('free variable')).
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flag_set(Flag, _Value):-
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\+ recorded(flags, defined_flag(Flag, _Group, _Type, _DefaultValue, _Handler, _Message), _Ref),
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throw(not_defined_flag_exception(Flag)).
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flag_set(Flag, Value):-
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recorded(flags, defined_flag(Flag, _Group, Type, _DefaultValue, M:Handler, _Message), _Ref),
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(Handler == true ->
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GoalValidated = true,
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GoalStored = true
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;
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GoalValidated =.. [Handler, validated, Value],
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GoalStored =.. [Handler, stored, Value]
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),
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flag_validate(Flag, Value, Type, M:Handler),
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call(M:GoalValidated),
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flag_store(Flag, Value),
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call(M:GoalStored).
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flag_get(Flag, Value):-
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recorded(flag_values, flag(Flag, Value), _Ref).
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flag_store(Flag, Value):-
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(recorded(flag_values, flag(Flag, _), Ref) ->
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erase(Ref)
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;
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true
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),
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recordz(flag_values, flag(Flag, Value), _Ref).
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flags_reset:-
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recorded(flags, defined_flag(Flag, _Group, _Type, DefaultValue, _Handler, _Message), _Ref),
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flag_set(Flag, DefaultValue),
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fail.
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flags_reset.
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flag_validate(_Flag, Value, _Type, M:Handler):-
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Handler \= true,
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GoalValidate =.. [Handler, validate, Value],
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call(M:GoalValidate), !.
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flag_validate(_Flag, Value, Type, M:Handler):-
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Handler \= true,
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GoalValidating =.. [Handler, validating, Value],
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Type =.. LType,
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append(LType, [Value], LGoal),
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G =.. LGoal,
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catch((M:GoalValidating, G), _, fail), !.
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flag_validate(_Flag, Value, Type, _M:Handler):-
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Handler == true,
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Type =.. LType,
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append(LType, [Value], LGoal),
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G =.. LGoal,
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catch(G, _, fail), !.
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flag_validate(_Flag, Value, SyntacticSugar, M:Handler):-
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Handler \= true,
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GoalValidating =.. [Handler, validating, Value],
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flag_validation_syntactic_sugar(SyntacticSugar, Type),
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Type =.. LType,
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append(LType, [Value], LGoal),
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G =.. LGoal,
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catch((M:GoalValidating, G), _, fail), !.
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flag_validate(_Flag, Value, SyntacticSugar, _M:Handler):-
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Handler == true,
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flag_validation_syntactic_sugar(SyntacticSugar, Type),
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Type =.. LType,
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append(LType, [Value], LGoal),
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G =.. LGoal,
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catch(G, _, fail), !.
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flag_validate(Flag, Value, Type, Handler):-
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(var(Value) ->
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Value = 'free variable'
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;
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true
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),
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flag_get_domain_message(Type, Handler, Domain),
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throw(out_of_domain_exception(Flag, Value, Domain)).
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%
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% The validation predicates
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%
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flag_validate_dummy.
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flag_validate_dummy(Value):-
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nonvar(Value).
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flag_validate_atom.
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flag_validate_atom(Value):-
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atom(Value).
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flag_validate_atomic.
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flag_validate_atomic(Value):-
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atomic(Value).
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flag_validate_number.
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flag_validate_number(Value):-
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number(Value).
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flag_validate_integer.
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flag_validate_integer(Value):-
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integer(Value).
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flag_validate_directory.
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flag_validate_directory(Value):-
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atomic(Value),
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catch(file_exists(Value), _, fail),
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file_property(Value, type(directory)), !.
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flag_validate_directory(Value):-
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atomic(Value),
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% fixme : why not inform the user???
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catch((\+ file_exists(Value), make_directory(Value)), _, fail).
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flag_validate_file.
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flag_validate_file(Value):-
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catch(file_exists(Value), _, fail), file_property(Value, type(regular)), !.
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flag_validate_file(Value):-
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atomic(Value),
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catch((\+ file_exists(Value), tell(Value)), _, fail),
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told,
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delete_file(Value).
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flag_validate_in_list(Domain):-
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is_list(Domain), ground(Domain), \+ Domain = [].
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flag_validate_in_list(Domain, Value):-
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ground(Value),
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memberchk(Value, Domain).
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flag_validate_in_interval([L, U], Type):-
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nonvar(Type),
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(Type = number ->
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number(L), number(U), L =< U
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;
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(Type = float ->
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float(L), float(U), L =< U
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;
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Type = integer, integer(L), integer(U), L =< U
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)
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).
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flag_validate_in_interval((L, U), Type):-
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nonvar(Type),
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(Type = number ->
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number(L), number(U), L < U
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;
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(Type = float ->
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float(L), float(U), L < U
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;
|
|
Type = integer, (integer(L);L is -inf), (integer(U);U is +inf), L < U
|
|
)
|
|
).
|
|
flag_validate_in_interval(([L], U), Type):-
|
|
nonvar(Type),
|
|
(Type = number ->
|
|
number(L), number(U), L < U
|
|
;
|
|
(Type = float ->
|
|
float(L), float(U), L < U
|
|
;
|
|
Type = integer, integer(L), (integer(U);U is +inf), L < U
|
|
)
|
|
).
|
|
flag_validate_in_interval((L, [U]), Type):-
|
|
nonvar(Type),
|
|
(Type = number ->
|
|
number(L), number(U), L < U
|
|
;
|
|
(Type = float ->
|
|
float(L), float(U), L < U
|
|
;
|
|
Type = integer, (integer(L);L is -inf), integer(U), L < U
|
|
)
|
|
).
|
|
flag_validate_in_interval(([L], [U]), Type):-
|
|
nonvar(Type),
|
|
(Type = number ->
|
|
number(L), number(U), L =< U
|
|
;
|
|
(Type = float ->
|
|
float(L), float(U), L =< U
|
|
;
|
|
Type = integer, integer(L), integer(U), L =< U
|
|
)
|
|
).
|
|
|
|
flag_validate_in_interval([L, U], Type, Value):-
|
|
check_same_type(Type, Value, L, U),
|
|
Value >= L,
|
|
Value =< U, !.
|
|
flag_validate_in_interval((L, U), Type, Value):-
|
|
check_same_type(Type, Value, L, U),
|
|
Value > L,
|
|
Value < U, !.
|
|
flag_validate_in_interval(([L], U), Type, Value):-
|
|
check_same_type(Type, Value, L, U),
|
|
Value >= L,
|
|
Value < U, !.
|
|
flag_validate_in_interval((L, [U]), Type, Value):-
|
|
check_same_type(Type, Value, L, U),
|
|
Value > L,
|
|
Value =< U, !.
|
|
flag_validate_in_interval(([L], [U]), Type, Value):-
|
|
check_same_type(Type, Value, L, U),
|
|
Value >= L,
|
|
Value =< U.
|
|
|
|
check_same_type(integer, Value, L, U):-
|
|
integer(L), integer(U), integer(Value), !.
|
|
check_same_type(integer, Value, L, +inf):-
|
|
integer(L), integer(Value), !.
|
|
check_same_type(integer, Value, -inf, U):-
|
|
integer(U), integer(Value), !.
|
|
check_same_type(integer, Value, -inf, +inf):-
|
|
integer(Value), !.
|
|
check_same_type(float, Value, L, U):-
|
|
float(L), float(U), float(Value).
|
|
check_same_type(number, Value, L, U):-
|
|
number(L), number(U), number(Value).
|
|
|
|
% This is only for messaging purposes. Each validation type should have one.
|
|
|
|
make_list_msg([H], H).
|
|
make_list_msg([H|T], Msg/H):-
|
|
make_list_msg(T, Msg).
|
|
|
|
validation_type_values(flag_validate_dummy, '').
|
|
validation_type_values(flag_validate_atom, 'any atom').
|
|
validation_type_values(flag_validate_atomic, 'any atomic').
|
|
validation_type_values(flag_validate_number, 'any number').
|
|
validation_type_values(flag_validate_integer, 'any integer').
|
|
validation_type_values(flag_validate_directory, 'any valid directory').
|
|
validation_type_values(flag_validate_file, 'any valid file').
|
|
|
|
validation_type_values(flag_validate_in_list(L), Msg):-
|
|
reverse(L, R),
|
|
make_list_msg(R, Msg).
|
|
|
|
validation_type_values(flag_validate_in_interval((L, U), Type), Domain):-
|
|
number(L), number(U),
|
|
atomic_concat([Type,' in (', L, ',', U, ')'], Domain).
|
|
validation_type_values(flag_validate_in_interval(([L], U), Type), Domain):-
|
|
number(L), number(U),
|
|
atomic_concat([Type,' in [', L, ',', U, ')'], Domain).
|
|
validation_type_values(flag_validate_in_interval((L, [U]), Type), Domain):-
|
|
number(L), number(U),
|
|
atomic_concat([Type,' in (', L, ',', U, ']'], Domain).
|
|
validation_type_values(flag_validate_in_interval(([L], [U]), Type), Domain):-
|
|
number(L), number(U),
|
|
atomic_concat([Type,' in [', L, ',', U, ']'], Domain).
|
|
validation_type_values(flag_validate_in_interval([L, U], Type), Domain):-
|
|
number(L), number(U),
|
|
atomic_concat([Type,' in [', L, ',', U, ']'], Domain).
|
|
|
|
validation_type_values(ValidationType, Domain):-
|
|
flag_validation_syntactic_sugar(ValidationType, SyntacticSugar),
|
|
validation_type_values(SyntacticSugar, Domain).
|
|
|
|
%
|
|
% Syntactic sugar validation types
|
|
%
|
|
|
|
flag_validation_syntactic_sugar(SyntacticSugar, Type):-
|
|
recorded(flags, validation_syntactic_sugar(SyntacticSugar, Type), _Ref).
|
|
|
|
flag_add_validation_syntactic_sugar(SyntacticSugar, Type):-
|
|
recordzifnot(flags, validation_syntactic_sugar(SyntacticSugar, Type), _Ref).
|
|
|
|
|
|
% End of validation predicates
|
|
|