748 lines
27 KiB
Prolog
748 lines
27 KiB
Prolog
%%% -*- Mode: Prolog; -*-
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%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
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%
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% $Date: 2010-08-24 15:23:06 +0200 (Tue, 24 Aug 2010) $
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% $Revision: 4672 $
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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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%
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% Module hash_table.
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%
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% Maps tuples of form (x1,x2,...,xn) to incremental IDs.
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% Ensures lookup time for tuple = O(n) with n being the size of tuple lookup
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% time is independed from the amount of entries in the table when +Size big.
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% If +Size not big enought then lookup time linear per +Size entries.
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% To return from ID to tuple again constant time but based on +TuppleSize.
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%
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% Exports:
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%
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% hash_table_init(+Size, -HashTable)
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% hash_table_init(+Size, +TupleSize, -HashTable)
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%
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% Initializes a hash table with internal array size of +Size, and #tuples
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% of +TupleSize.
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% +Size ~> # of problog different prob facts.
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% +TupleSize ~> estimated tuples to be used.
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%
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% hash_table_set_domain_size(+HashTable, +Tuple, +TupleSize)
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%
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% Useful to define that a specific +Tuple mask will have specific internal
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% size. It also pre initialized an array for the ID.
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% Examples: if problog fact ID1 is a non-ground and we now that it has
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% 1000 possible groundings then: hash_table_set_domain_size(HT, ID1, 1000).
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% problog fact ID2 is an mvs with 5 possible values and each is non
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% ground with 100 possible values then: hash_table_set_domain_size(HT, ID2, 5),
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% hash_table_set_domain_size(HT, (ID2,'*'), 100).
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% When emmitted the internal array will assume the defined size from father.
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%
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% hash_table_delete(+HashTable)
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%
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% Clears the +HashTable
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%
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% hash_table_display(+HashTable, +ColSize, +PaneSize)
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%
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% Debug only purposes currently.
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%
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% hash_table_lookup(+HashTable, +Tuple, -ID)
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% hash_table_lookup(+HashTable, -Tuple, +ID)
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%
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% This is the lookup function. Either takes a +Tuple and retuns an -ID
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% or vice versa. Handles collisions, automatically grows array by a chain
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% of arrays.
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%
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% hash_table_contains(+HashTable, +Tuple, -ID)
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%
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% Similar with lookup but only checks if +Tuple has been seen and returns -ID.
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%
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% hash_table_get_entries(+HashTable, -Count)
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%
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% Returns the # of tuples seen up to now.
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%
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% problog_key_to_tuple(+Key, -Tuple)
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%
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% Takes a +Key of format "ID1_ID2" and makes a tuple (ID1, ID2)
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%
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%
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% IMPORTANT: Currently it under performs for some reason...
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%
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:- module(hash_table, [hash_table_init/2,
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hash_table_init/3,
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hash_table_set_domain_size/3,
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hash_table_delete/1,
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hash_table_reset/1,
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hash_table_lookup/3,
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hash_table_contains/3,
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hash_table_get_entries/2,
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hash_table_display/3,
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problog_key_to_tuple/2]).
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:- use_module(library(lists), [member/2]).
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%
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% General use predicates
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%
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int(N):-
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int(0, N).
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int(N, N).
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int(P, R):-
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N is P + 1,
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int(N, R).
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get_digits(Num, Digits):-
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get_digits(Num, Digits, 1).
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get_digits(Num, Digits, Digits):-
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Num < 10, !.
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get_digits(Num, Digits, Acc):-
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NNum is Num / 10,
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NAcc is Acc + 1,
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get_digits(NNum, Digits, NAcc).
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%
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% Simple Counters
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%
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:- initialization(bb_put(array_count, 1)).
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get_next_array(ID, Name):-
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bb_get(array_count, ID),
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NewID is ID + 1,
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bb_put(array_count, NewID),
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number_atom(ID, Name).
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get_next_identifier(Identifier, Next):-
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bb_get(Identifier, Next),
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NewNext is Next + 1,
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bb_put(Identifier, NewNext).
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%
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% Syntactic Sugar
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%
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get_array_name(ID, Array):- % if you change this, you need to change also get_next_array
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% char_code(Array, ID).
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number_atom(ID, Array).
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% atomic_concat(array, ID, Array).
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get_array_identifier(ID, Identifier):-
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atomic_concat(array_identifier, ID, Identifier).
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%
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% hash_table_init(+Size, -HashTable)
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% initializes a HashTable with Size positions, collitions are handled
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% by expanding a new array that is kept at the last array element
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%
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hash_table_init(Size, HashTable):-
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hash_table_init(Size, Size, HashTable).
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hash_table_init(Size, RevSize, HashTable):-
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ArraySize is Size + 1,
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get_next_array(ID, Array),
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get_array_identifier(ID, Identifier),
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static_array(Array, ArraySize, int),
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bb_put(Identifier, 1),
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RevArraySize is RevSize + 1,
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get_next_array(_RevID, RevArray),
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static_array(RevArray, RevArraySize, term),
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recordz(hash_table, hash(Array, Size, Identifier, RevArray, RevSize), HashTable).
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hash_table_expand_array(Array, Size, NewArray):-
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ArraySize is Size + 1,
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get_next_array(ID, NewArray),
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static_array(NewArray, ArraySize, int),
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update_array(Array, Size, ID).
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hash_table_sub_array_init(Array, Index, NewArray, Size):-
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ArraySize is Size + 1,
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get_next_array(ID, NewArray),
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static_array(NewArray, ArraySize, int),
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recordz(hash_table_arrays, array(ID, NewArray, Size, Array), _),
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update_array(Array, Index, ID).
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%
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% hash_table_set_domain_size(HashTable, Index, DomainSize)
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%
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hash_table_set_domain_size(HashTable, Index, DomainSize):-
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ground(Index),
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ground(HashTable),
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recorded(hash_table, hash(Array, Size, _Identifier, _RevArray, _RevSize), HashTable),
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hash_table_set_domain_size(Array, Size, Index, DomainSize).
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hash_table_set_domain_size(Array, Size, Index, DomainSize):-
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integer(Index),
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Index < Size, !,
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array_element(Array, Index, A),
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(A is 0 ->
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hash_table_sub_array_init(Array, Index, _NewArray, DomainSize)
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;
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throw(hash_table_exception(set_domain_size_fail(duplicate_definition(Index, DomainSize))))
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).
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hash_table_set_domain_size(Array, Size, Index, DomainSize):-
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integer(Index), !,
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NewIndex is Index - Size,
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array_element(Array, Size, SubArrayID),
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(SubArrayID is 0->
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hash_table_expand_array(Array, Size, NewArray)
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;
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get_array_name(SubArrayID, NewArray)
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),
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hash_table_set_domain_size(NewArray, Size, NewIndex, DomainSize).
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hash_table_set_domain_size(Array, Size, Index, DomainSize):-
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Index == '*', !,
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int(N),
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hash_table_set_domain_size(Array, Size, N, DomainSize),
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N is Size - 1, !.
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hash_table_set_domain_size(Array, Size, (Index, Rest), DomainSize):-
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integer(Index),
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Index < Size, !,
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array_element(Array, Index, SubArrayID),
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(SubArrayID is 0->
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throw(hash_table_exception(set_domain_size_fail(sub_array_missing((Index, Rest), DomainSize))))
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;
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recorded(hash_table_arrays, array(SubArrayID, SubArray, SubArraySize, Array), _)
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),
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hash_table_set_domain_size(SubArray, SubArraySize, Rest, DomainSize).
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hash_table_set_domain_size(Array, Size, (Index, Rest), DomainSize):-
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integer(Index),
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NewIndex is Index - Size,
|
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array_element(Array, Size, SubArrayID),
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(SubArrayID is 0->
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hash_table_expand_array(Array, Size, NewArray)
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;
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get_array_name(SubArrayID, NewArray)
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),
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hash_table_set_domain_size(NewArray, Size, (NewIndex, Rest), DomainSize).
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|
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%
|
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% hash_table_delete(+HashTable)
|
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% deletes the arrays, records, and blackboard variables related with the hashtable
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%
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hash_table_delete(HashTable):-
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ground(HashTable),
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recorded(hash_table, hash(Array, Size, Identifier, RevArray, RevSize), HashTable),
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bb_delete(Identifier, _),
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erase(HashTable),
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hash_table_delete_array(Array, Size),
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hash_table_delete_rev_array(RevArray, RevSize).
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hash_table_delete_array(Array, Size):-
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hash_table_delete_chain(Array, Size),
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hash_table_delete_subarrays(Array),
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close_static_array(Array).
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hash_table_delete_chain(Array, Size):-
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array_element(Array, Size, ChainArrayID),
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(ChainArrayID is 0 ->
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true
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;
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get_array_name(ChainArrayID, ChainArray),
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hash_table_delete_array(ChainArray, Size)
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).
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hash_table_delete_subarrays(Array):- % I can improve the performance of this by making a second record with Array infront
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forall(recorded(hash_table_arrays, array(_SubArrayID, SubArray, Size, Array) , Ref),
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(erase(Ref), hash_table_delete_array(SubArray, Size))).
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hash_table_delete_rev_array(Array, Size):-
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(array_element(Array, Size, ChainArray) ->
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hash_table_delete_rev_array(ChainArray, Size)
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;
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true
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),
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close_static_array(Array).
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|
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%
|
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% hash_table_reset(+HashTable)
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%
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% resets the table values, retains the structure
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%
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hash_table_reset(HashTable):-
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ground(HashTable),
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recorded(hash_table, hash(Array, Size, Identifier, RevArray, RevSize), HashTable),
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hash_table_get_entries(HashTable, Count),
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int(Index),
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hash_table_lookup(HashTable, Tuple, Index),
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hash_table_reset_element(Array, Size, Tuple),
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Index is Count - 1, !,
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hash_table_reset_rev_array(RevArray, RevSize),
|
|
bb_put(Identifier, 1).
|
|
|
|
hash_table_reset_element(Array, Size, Index):-
|
|
integer(Index),
|
|
Index < Size, !,
|
|
update_array(Array, Index, 0).
|
|
|
|
hash_table_reset_element(Array, Size, Index):-
|
|
integer(Index),
|
|
NewIndex is Index - Size,
|
|
array_element(Array, Size, SubArrayID),
|
|
get_array_name(SubArrayID, SubArray),
|
|
hash_table_reset_element(SubArray, Size, NewIndex).
|
|
|
|
hash_table_reset_element(Array, Size, (Index, Rest)):-
|
|
integer(Index),
|
|
Index < Size, !,
|
|
array_element(Array, Index, SubArrayID),
|
|
recorded(hash_table_arrays, array(SubArrayID, SubArray, SubArraySize, Array), _),
|
|
hash_table_reset_element(SubArray, SubArraySize, Rest).
|
|
|
|
hash_table_reset_element(Array, Size, (Index, Rest)):-
|
|
integer(Index),
|
|
NewIndex is Index - Size,
|
|
array_element(Array, Size, SubArrayID),
|
|
get_array_name(SubArrayID, SubArray),
|
|
hash_table_reset_element(SubArray, Size, (NewIndex, Rest)).
|
|
|
|
hash_table_reset_rev_array(RevArray, RevSize):-
|
|
array_element(RevArray, RevSize, ChainArray), !,
|
|
reset_static_array(RevArray),
|
|
update_array(RevArray, RevSize, ChainArray),
|
|
hash_table_reset_rev_array(ChainArray, RevSize).
|
|
|
|
hash_table_reset_rev_array(RevArray, _RevSize):-
|
|
reset_static_array(RevArray).
|
|
|
|
%
|
|
% hash_table_lookup(+HashTable, +Tuple, -ID)
|
|
% hash_table_lookup(+HashTable, -Tuple, +ID)
|
|
% lookup Tuple in HashTable and insert, return ID
|
|
% lookup ID in HashTable and return Tuple
|
|
%
|
|
% Known bug: If HashTable contains a Tuple of form (ID, _) looking up ID succeeds
|
|
% and returns the SubArrayID.
|
|
% This is safe under the assumption that ID is unique to start from.
|
|
%
|
|
|
|
hash_table_lookup(HashTable, Tuple, ID):-
|
|
ground(Tuple),
|
|
ground(HashTable), !,
|
|
recorded(hash_table, hash(Array, Size, Identifier, RevArray, RevSize), HashTable),
|
|
hash_table_lookup(Array, Size, Identifier, Tuple, ID),
|
|
hash_table_update_rev_array(RevArray, RevSize, ID, Tuple).
|
|
|
|
hash_table_lookup(HashTable, Tuple, ID):-
|
|
integer(ID),
|
|
ground(HashTable),
|
|
recorded(hash_table, hash(_Array, _Size, _Identifier, RevArray, RevSize), HashTable),
|
|
hash_table_element_rev_array(RevArray, RevSize, ID, Tuple).
|
|
|
|
hash_table_lookup(Array, Size, Identifier, Index, RID):-
|
|
integer(Index),
|
|
Index < Size, !,
|
|
array_element(Array, Index, StoredID),
|
|
(StoredID is 0 ->
|
|
get_next_identifier(Identifier, ID),
|
|
update_array(Array, Index, ID)
|
|
;
|
|
ID = StoredID
|
|
),
|
|
RID is ID - 1.
|
|
|
|
hash_table_lookup(Array, Size, Identifier, Index, ID):-
|
|
integer(Index), !,
|
|
NewIndex is Index - Size,
|
|
array_element(Array, Size, ArrayID),
|
|
(ArrayID is 0 ->
|
|
hash_table_expand_array(Array, Size, SubArray)
|
|
;
|
|
get_array_name(ArrayID, SubArray)
|
|
),
|
|
hash_table_lookup(SubArray, Size, Identifier, NewIndex, ID).
|
|
|
|
hash_table_lookup(Array, Size, Identifier, (Index,Tuple), ID):-
|
|
integer(Index),
|
|
Index < Size, !,
|
|
array_element(Array, Index, ArrayID),
|
|
(ArrayID is 0 ->
|
|
NewSize = Size,
|
|
hash_table_sub_array_init(Array, Index, SubArray, Size)
|
|
;
|
|
recorded(hash_table_arrays, array(ArrayID, SubArray, NewSize, Array), _)
|
|
),
|
|
hash_table_lookup(SubArray, NewSize, Identifier, Tuple, ID).
|
|
|
|
hash_table_lookup(Array, Size, Identifier, (Index,Tuple), ID):-
|
|
integer(Index),
|
|
NewIndex is Index - Size,
|
|
array_element(Array, Size, ArrayID),
|
|
(ArrayID is 0 ->
|
|
hash_table_expand_array(Array, Size, SubArray)
|
|
;
|
|
get_array_name(ArrayID, SubArray)
|
|
),
|
|
hash_table_lookup(SubArray, Size, Identifier, (NewIndex, Tuple), ID).
|
|
|
|
hash_table_update_rev_array(Array, Size, Index, Tuple):-
|
|
integer(Index),
|
|
Index < Size, !,
|
|
update_array(Array, Index, Tuple).
|
|
|
|
hash_table_update_rev_array(Array, Size, Index, Tuple):-
|
|
integer(Index),
|
|
NewIndex is Index - Size,
|
|
(array_element(Array, Size, SubArray) ->
|
|
true
|
|
;
|
|
SubArraySize is Size + 1,
|
|
get_next_array(_SubArrayID, SubArray),
|
|
static_array(SubArray, SubArraySize, term),
|
|
update_array(Array, Size, SubArray)
|
|
),
|
|
hash_table_update_rev_array(SubArray, Size, NewIndex, Tuple).
|
|
|
|
hash_table_element_rev_array(Array, Size, Index, Tuple):-
|
|
integer(Index),
|
|
Index < Size, !,
|
|
array_element(Array, Index, Tuple).
|
|
|
|
hash_table_element_rev_array(Array, Size, Index, Tuple):-
|
|
integer(Index),
|
|
NewIndex is Index - Size,
|
|
array_element(Array, Size, SubArray),
|
|
hash_table_element_rev_array(SubArray, Size, NewIndex, Tuple).
|
|
|
|
|
|
%
|
|
% hash_table_contains(+HashTable, +Tuple, -ID)
|
|
% search the hash_table to see if it contains a Tuple and return the ID
|
|
%
|
|
% Known bug: If HashTable contains a Tuple of form (ID, _) asking if HashTable
|
|
% contains ID it succeeds.
|
|
% This is safe under the assumption that ID is unique to start from.
|
|
%
|
|
hash_table_contains(HashTable, Tuple, ID):-
|
|
ground(Tuple),
|
|
ground(HashTable), !,
|
|
recorded(hash_table, hash(Array, Size, _Identifier, _RevArray, _RevSize), HashTable),
|
|
hash_table_contains(Array, Size, Tuple, ID).
|
|
|
|
hash_table_contains(Array, Size, Index, RID):-
|
|
integer(Index),
|
|
Index < Size, !,
|
|
array_element(Array, Index, ID),
|
|
ID > 0,
|
|
RID is ID - 1.
|
|
|
|
hash_table_contains(Array, Size, Index, ID):-
|
|
integer(Index), !,
|
|
NewIndex is Index - Size,
|
|
array_element(Array, Size, SubArrayID),
|
|
SubArrayID > 0,
|
|
get_array_name(SubArrayID, SubArray),
|
|
hash_table_contains(SubArray, Size, NewIndex, ID).
|
|
|
|
hash_table_contains(Array, Size, (Index,Tuple), ID):-
|
|
integer(Index),
|
|
Index < Size, !,
|
|
array_element(Array, Index, SubArrayID),
|
|
SubArrayID > 0,
|
|
recorded(hash_table_arrays, array(SubArrayID, SubArray, NewSize, Array), _),
|
|
hash_table_contains(SubArray, NewSize, Tuple, ID).
|
|
|
|
hash_table_contains(Array, Size, (Index,Tuple), ID):-
|
|
integer(Index),
|
|
NewIndex is Index - Size,
|
|
array_element(Array, Size, SubArrayID),
|
|
SubArrayID > 0,
|
|
get_array_name(SubArrayID, SubArray),
|
|
hash_table_contains(SubArray, Size, (NewIndex, Tuple), ID).
|
|
|
|
%
|
|
% hash_table_get_entries(+HashTable, -Count)
|
|
%
|
|
% returns the number of entries inside the hash table
|
|
%
|
|
hash_table_get_entries(HashTable, Count):-
|
|
ground(HashTable),
|
|
recorded(hash_table, hash(_Array, _Size, Identifier, _RevArray, _RevSize), HashTable),
|
|
bb_get(Identifier, Num),
|
|
Count is Num - 1.
|
|
|
|
%
|
|
% hash_table_display(+HashTable, +ColSize, +PaneSize)
|
|
%
|
|
% Only for debugging reasons.
|
|
%
|
|
hash_table_display(HashTable, ColSize, PaneSize):-
|
|
ground(HashTable), integer(ColSize), integer(PaneSize), ColSize =< PaneSize,
|
|
recorded(hash_table, hash(Array, Size, Identifier, RevArray, RevSize), HashTable),
|
|
hash_table_get_entries(HashTable, Count),
|
|
format('Hash Table: ~q~n Entries: ~d~n Identifier: ~w~n', [HashTable, Count, Identifier]),
|
|
hash_table_display_array(Array, Size),
|
|
hash_table_display_rev_array(RevArray, RevSize, Identifier, ColSize, PaneSize).
|
|
|
|
hash_table_display_array(Array, Size):-
|
|
hash_table_get_chains(Array, Size, Chains),
|
|
findall(SubArray, recorded(hash_table_arrays, array(_, SubArray, _, Array),_), SubArrays),
|
|
format('Array: ~q~n Size: ~d~n Chains: ~q~n Sub Arrays: ~q~n',[Array, Size, Chains, SubArrays]),
|
|
forall(member(SubArray, SubArrays), (
|
|
recorded(hash_table_arrays, array(_, SubArray, SubSize, Array),_),
|
|
hash_table_display_array(SubArray, SubSize)
|
|
)).
|
|
|
|
hash_table_display_rev_array(RevArray, RevSize, Identifier, ColSize, PaneSize):-
|
|
hash_table_get_chains(RevArray, RevSize, Chains),
|
|
format('Array: ~q~n Size: ~d~n Chains: ~q~n', [RevArray, RevSize, Chains]),
|
|
bb_get(Identifier, Num),
|
|
get_digits(Num, Digits),
|
|
hash_table_get_elements(RevArray, RevSize, 0, Tupples),
|
|
hash_table_display_elements(0, Tupples, Digits, ColSize, PaneSize).
|
|
|
|
hash_table_get_elements(RevArray, RevSize, Current, [Tupple|Tupples]):-
|
|
Current < RevSize,
|
|
array_element(RevArray, Current, Tupple), !,
|
|
Next is Current + 1,
|
|
hash_table_get_elements(RevArray, RevSize, Next, Tupples).
|
|
hash_table_get_elements(_RevArray, RevSize, Current, []):-
|
|
Current < RevSize, !.
|
|
hash_table_get_elements(RevArray, RevSize, RevSize, Tupples):-
|
|
array_element(RevArray, RevSize, NextArray), !,
|
|
hash_table_get_elements(NextArray, RevSize, 0, Tupples).
|
|
hash_table_get_elements(_RevArray, RevSize, RevSize, []).
|
|
|
|
hash_table_get_chains(Array, Size, Chains):-
|
|
((array_element(Array, Size, ChainID), ChainID \== 0) ->
|
|
(integer(ChainID) ->
|
|
get_array_name(ChainID, ChainName)
|
|
;
|
|
ChainName = ChainID
|
|
),
|
|
hash_table_get_chains(ChainName, Size, RestChains),
|
|
Chains = [ChainName|RestChains]
|
|
;
|
|
Chains = []
|
|
).
|
|
|
|
hash_table_display_elements(_Index, [], _Digits, _ColSize, _PaneSize):- format('~n',[]), !.
|
|
hash_table_display_elements(Index, [Element|T], Digits, ColSize, PaneSize):-
|
|
NL is Index mod integer(PaneSize / ColSize),
|
|
RealColSize is ColSize - Digits - 3,
|
|
((NL > 0; Index =:= 0) -> true; format('~n',[])),
|
|
format('~t~d~*+ = ~q~*+', [Index, Digits, Element, RealColSize]),
|
|
NewIndex is Index + 1,
|
|
hash_table_display_elements(NewIndex, T, Digits, ColSize, PaneSize).
|
|
|
|
|
|
%
|
|
% problog_key_to_tuple(+Key, -Tuple)
|
|
%
|
|
% This should be removed in new implementation
|
|
%
|
|
problog_key_to_tuple(Key, Key):-
|
|
integer(Key), !.
|
|
problog_key_to_tuple(Key, (PID, SID)):-
|
|
atomic(Key),
|
|
atom_chars(Key, ID_Chars),
|
|
break_list_at(ID_Chars, 95, Part1, Part2),
|
|
% once(append(Part1, [95|Part2], ID_Chars)), % 95 = '_'
|
|
number_chars(PID, Part1),
|
|
number_chars(SID, Part2).
|
|
|
|
break_list_at([H|T], H, [], T):-!.
|
|
break_list_at([H|T], At, [H|Part1], Part2):-
|
|
break_list_at(T, At, Part1, Part2).
|