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yap-6.3/library/swi.yap
vsc b089ae2575 fix GPL
fix idb: stuff in coroutines.


git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1267 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
2005-03-15 18:29:25 +00:00

104 lines
2.1 KiB
Prolog

:- module(swi, [
absolute_file_name/3,
concat_atom/3,
setenv/2,
nth1/3,
forall/2,
between/3,
term_to_atom/2,
concat_atom/2,
volatile/1]).
:- use_module(library(charsio),[write_to_chars/2,read_from_chars/2]).
:- use_module(library(lists),[nth/3]).
:- multifile user:file_search_path/2.
:- dynamic user:file_search_path/2.
user:file_search_path(swi, Home) :-
current_prolog_flag(home, Home).
user:file_search_path(foreign, swi(ArchLib)) :-
current_prolog_flag(arch, Arch),
atom_concat('lib/', Arch, ArchLib).
user:file_search_path(foreign, swi(lib)).
%
% maybe a good idea to eventually support this in YAP.
% but for now just ignore it.
%
:- meta_predicate volatile(:).
:- op(1150, fx, 'volatile').
volatile(P) :- var(P),
throw(error(instantiation_error,volatile(P))).
volatile(M:P) :-
do_volatile(P,M).
volatile((G1,G2)) :-
volatile(G1),
volatile(G2).
volatile(P) :-
do_volatile(P,_).
do_volatile(_,_).
:- meta_predicate forall(+,:).
:- load_foreign_files([yap2swi], [], swi_install).
:- use_module(library(lists)).
absolute_file_name(jar(File), Opts, Path) :- !,
absolute_file_name(library(File), Path).
absolute_file_name(library(File), Opts, Path) :- !,
absolute_file_name(library(File), Path).
absolute_file_name(File, Opts, Path) :-
absolute_file_name(File, Path).
term_to_atom(Term,Atom) :-
nonvar(Atom), !,
atom_codes(Atom,S),
read_from_chars(S,Term).
term_to_atom(Term,Atom) :-
write_to_chars(Term,S),
atom_codes(Atom,S).
concat_atom(List, Separator, New) :-
add_separator_to_list(List, Separator, NewList),
atomic_concat(NewList, New).
concat_atom(List, New) :-
atomic_concat(List, New).
add_separator_to_list([], _, []).
add_separator_to_list([T], _, [T]) :- !.
add_separator_to_list([H|T], Separator, [H,Separator|NT]) :-
add_separator_to_list(T, Separator, NT).
setenv(X,Y) :- unix(putenv(X,Y)).
nth1(I,L,A) :- nth(I,L,A).
forall(X,Y) :-
catch(do_forall(X,Y), fail_forall, fail).
do_forall(X,Y) :-
call(X),
do_for_forall(Y).
do_forall(_,_).
do_for_forall(Y) :- call(Y), !, fail.
do_for_forall(Y) :- throw(fail_forall).
between(I,_,I).
between(I0,I,J) :- I0 < I,
I1 is I0+1,
between(I1,I,J).