056ccbc819
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1270 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
104 lines
2.1 KiB
Prolog
104 lines
2.1 KiB
Prolog
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:- module(swi, [
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absolute_file_name/3,
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concat_atom/3,
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setenv/2,
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nth1/3,
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forall/2,
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between/3,
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term_to_atom/2,
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concat_atom/2,
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volatile/1]).
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:- use_module(library(charsio),[write_to_chars/2,read_from_chars/2]).
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:- use_module(library(lists),[nth/3]).
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:- multifile user:file_search_path/2.
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:- dynamic user:file_search_path/2.
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user:file_search_path(swi, Home) :-
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current_prolog_flag(home, Home).
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user:file_search_path(foreign, swi(ArchLib)) :-
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current_prolog_flag(arch, Arch),
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atom_concat('lib/', Arch, ArchLib).
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user:file_search_path(foreign, swi(lib)).
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%
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% maybe a good idea to eventually support this in YAP.
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% but for now just ignore it.
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%
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:- meta_predicate volatile(:).
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:- op(1150, fx, 'volatile').
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volatile(P) :- var(P),
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throw(error(instantiation_error,volatile(P))).
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volatile(M:P) :-
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do_volatile(P,M).
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volatile((G1,G2)) :-
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volatile(G1),
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volatile(G2).
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volatile(P) :-
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do_volatile(P,_).
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do_volatile(_,_).
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:- meta_predicate forall(+,:).
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:- load_foreign_files([yap2swi], [], swi_install).
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:- use_module(library(lists)).
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absolute_file_name(jar(File), _Opts, Path) :- !,
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absolute_file_name(library(File), Path).
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absolute_file_name(library(File), _Opts, Path) :- !,
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absolute_file_name(library(File), Path).
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absolute_file_name(File, _Opts, Path) :-
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absolute_file_name(File, Path).
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term_to_atom(Term,Atom) :-
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nonvar(Atom), !,
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atom_codes(Atom,S),
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read_from_chars(S,Term).
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term_to_atom(Term,Atom) :-
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write_to_chars(Term,S),
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atom_codes(Atom,S).
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concat_atom(List, Separator, New) :-
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add_separator_to_list(List, Separator, NewList),
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atomic_concat(NewList, New).
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concat_atom(List, New) :-
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atomic_concat(List, New).
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add_separator_to_list([], _, []).
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add_separator_to_list([T], _, [T]) :- !.
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add_separator_to_list([H|T], Separator, [H,Separator|NT]) :-
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add_separator_to_list(T, Separator, NT).
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setenv(X,Y) :- unix(putenv(X,Y)).
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nth1(I,L,A) :- nth(I,L,A).
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forall(X,Y) :-
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catch(do_forall(X,Y), fail_forall, fail).
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do_forall(X,Y) :-
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call(X),
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do_for_forall(Y).
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do_forall(_,_).
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do_for_forall(Y) :- call(Y), !, fail.
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do_for_forall(_) :- throw(fail_forall).
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between(I,_,I).
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between(I0,I,J) :- I0 < I,
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I1 is I0+1,
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between(I1,I,J).
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