00001 /* File: xsb_hook.P -- mechanism for adding hooks to xsb 00002 ** Author(s): kifer 00003 ** Contact: xsb-contact@cs.sunysb.edu 00004 ** 00005 ** Copyright (C) The Research Foundation of SUNY, 1999 00006 ** 00007 ** XSB is free software; you can redistribute it and/or modify it under the 00008 ** terms of the GNU Library General Public License as published by the Free 00009 ** Software Foundation; either version 2 of the License, or (at your option) 00010 ** any later version. 00011 ** 00012 ** XSB is distributed in the hope that it will be useful, but WITHOUT ANY 00013 ** WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 00014 ** FOR A PARTICULAR PURPOSE. See the GNU Library General Public License for 00015 ** more details. 00016 ** 00017 ** You should have received a copy of the GNU Library General Public License 00018 ** along with XSB; if not, write to the Free Software Foundation, 00019 ** Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 00020 ** 00021 ** $Id: xsb_hook.H,v 1.7 2005/01/14 18:32:05 ruim Exp $ 00022 ** 00023 */ 00024 00025 :- import 00026 '=..'/2, atom/1, call/1, call_c/1, callable/1, abort/1, arg/3 00027 from standard. 00028 :- import retractall/1, assert/1, (dynamic)/1 from assert. 00029 :- import psc_type/2, term_psc/2, term_new/2, psc_arity/2 from machine. 00030 00031 :- export add_xsb_hook/1, remove_xsb_hook/1, call_xsb_hook/2, call_xsb_hook/3. 00032 00033 :- export 00034 xsb_exit_hook/1, 00035 xsb_undefined_predicate_hook/1, 00036 xsb_assert_hook/1, 00037 xsb_retract_hook/1, 00038 xsb_before_prompt_hook/1.
1.4.5