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yap-6.3/pl/init.yap
2004-11-22 16:22:14 +00:00

132 lines
2.8 KiB
Prolog

/*************************************************************************
* *
* YAP Prolog *
* *
* Yap Prolog was developed at NCCUP - Universidade do Porto *
* *
* Copyright L.Damas, V.S.Costa and Universidade do Porto 1985-1997 *
* *
**************************************************************************
* *
* File: init.yap *
* Last rev: *
* mods: *
* comments: initializing the full prolog system *
* *
*************************************************************************/
% This is yap's init file
% should be consulted first step after booting
% These are pseudo declarations
% so that the user will get a redefining system predicate
otherwise.
fail :- fail.
false :- fail.
!.
(:- G) :- '$execute'(G), !.
'$$!'(CP) :- '$cut_by'(CP).
[] :- true.
:- set_value('$doindex',true).
% force having indexing code for throw.
:- '$handle_throw'(_,_,_), !.
:- ['errors.yap',
'utils.yap',
'arith.yap',
'directives.yap'].
:- compile_expressions.
:- [ 'yio.yap',
'debug.yap',
'consult.yap',
'checker.yap',
'depth_bound.yap',
'grammar.yap',
'ground.yap',
'listing.yap',
'preds.yap',
% modules must be after preds, otherwise we will have trouble
% with meta-predicate expansion being invoked
'modules.yap',
'signals.yap',
'profile.yap',
'callcount.yap',
'load_foreign.yap',
'sockets.yap',
'sort.yap',
'setof.yap',
'statistics.yap',
'strict_iso.yap',
'tabling.yap',
'threads.yap',
'yapor.yap'].
:- ['protect.yap'].
version(yap,[4,1]).
system_mode(verbose,on) :- set_value('$verbose',on).
system_mode(verbose,off) :- set_value('$verbose',off).
:- op(1150,fx,(mode)).
:- dynamic 'extensions_to_present_answer'/1.
:- ['corout.yap',
'arrays.yap'].
:- '$change_type_of_char'(36,7). % Make $ a symbol character
:- default_sequential(off).
%
% cleanup ensure loaded and recover some data-base space.
%
:- ( recorded('$loaded','$loaded'(_,_,_),R), erase(R), fail ; true ).
:- set_value('$user_module',user), '$protect'.
:- style_check([]).
%
% moved this to init_gc in gc.c to separate the alpha
%
% :- yap_flag(gc,on).
% :- yap_flag(gc_trace,verbose).
:- initialization((system_mode(verbose,on),module(user))).
:- module(user).
:- multifile goal_expansion/3.
:- dynamic_predicate(goal_expansion/3, logical).
:- multifile term_expansion/2.
:- dynamic_predicate(term_expansion/2, logical).
:- multifile file_search_path/2.
:- dynamic_predicate(file_search_path/2, logical).
file_search_path(library, Dir) :-
library_directory(Dir).
file_search_path(system, Dir) :-
prolog_flag(host_type, Dir).
:- multifile library_directory/1.
:- dynamic_predicate(library_directory/1, logical).
library_directory(D) :-
getenv('YAPSHAREDIR', D).
:- get_value(system_library_directory,D), assert(library_directory(D)).