comparison cpack/dml/lib/insist.pl @ 0:718306e29690 tip

commiting public release

+/* Part of DML (Digital Music Laboratory)
+	Copyright 2014-2015 Samer Abdallah, University of London
+	 
+	This program is free software; you can redistribute it and/or
+	modify it under the terms of the GNU General Public License
+	as published by the Free Software Foundation; either version 2
+	of the License, or (at your option) any later version.
+
+	This program is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public
+	License along with this library; if not, write to the Free Software
+	Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+:- module(insist, [insist/1,insist/2, insist/3]).
+:- meta_predicate insist(0,:), insist(0), insist(+,0,:).
+
+insist(G) :- insist(G,failed(G)).
+insist(G,Ex) :- call(G) -> true; throw(Ex).
+insist(det,G,Ex) :- insist(G,Ex).
+insist(multi,G,Ex) :- call(G) *-> true; throw(Ex).
+
+user:goal_expansion(insist(G),X) :- user:goal_expansion(insist(G,failed(G)),X).
+user:goal_expansion(insist(G,Ex),(G->true;throw(Ex))).
+user:goal_expansion(insist(det,G,Ex),X) :- user:goal_expansion(insist(G,Ex),X).
+user:goal_expansion(insist(multi,G,Ex),(G*->true;throw(Ex))).