This repository has been archived on 2023-08-20. You can view files and clone it, but cannot push or open issues or pull requests.
yap-6.3/utils/analysis/load.yap
Vítor Santos Costa 145ad73255 small fixes
indenting
2016-03-30 17:35:03 +01:00

724 lines
20 KiB
Prolog

/***********************************************************
load a program into a graph, but do not actually consult it.
***********************************************************/
load( D, _OMAP ) :-
working_directory(_, D),
fail.
load( _, _Map ) :-
% from libraries outside the current directories
assert( node( attributes, woken_att_do/4, 'library/atts.yap', prolog ) ),
fail.
load( _ , Dirs ) :-
dirs( Dirs ),
%%% phase 1: find modules
nb_setval( current_module, user ),
nb_setval( private, false ),
nb_setval( file_entry, user:user ),
init_loop( Dirs ),
maplist(scan_dir, Dirs).
scan_dir( Dir -user) :-
pl_interfs(0, Dir-user ),
%%% phase 2: find C-code predicates
c_preds( Dir-user ).
% the c-builtins do not depend on prolog code.
scan_dir( Dir -prolog) :-
c_preds( Dir-user ),
pl_interfs(0, Dir-user ).
%%% phase 2: find C-code predicates
dirs( Roots ) :-
member( Root-_, Roots ),
absolute_file_name( Root, FRoot ),
rdir( FRoot ),
fail.
dirs( _Roots ).
rdir( FRoot ) :-
absolute_file_name( FRoot, [glob(*), solutions(all), file_errors(fail)], File ),
\+ doskip( File ),
(
catch( file_property( File, type(directory) ), _, fail )
->
assert_new( dir( File ) ),
assert_new( sub_dir( FRoot, File ) ),
rdir( File )
;
file_base_name(File, B),
assert( file(File, B) )
),
fail.
rdir(_).
c_preds(Dir - Mod) :-
% format('%~*| C ************* ~a\n', [1,Dir]),
atom( Dir ),
absolute_file_name( Dir, [glob(*), solutions(all), file_errors(fail)], File ),
( ( sub_atom(File,_,_,0,'.c')
;
sub_atom(File,_,_,0,'.i')
;
sub_atom(File,_,_,0,'.C')
;
sub_atom(File,_,_,0,'.cpp')
;
sub_atom(File,_,_,0,'.icc')
;
sub_atom(File,_,_,0,'.h')
) ->
\+ doskip( File ),
c_file( File , Mod )
;
exists_directory( File ),
\+ doskip( File ),
c_preds( File - Mod )
),
fail.
c_preds(_).
c_file(F, _Mod) :-
consulted( F, _ ),
!.
c_file(F, Mod) :-
assert( consulted( F, Mod ) ),
nb_setval( current_module, Mod ),
open(F, read, S, [alias(c_file)]),
repeat,
read_line_to_codes( S, Codes ),
( Codes == end_of_file
->
!,
close(S)
;
append( _, "PL_extension", Codes),
%writeln(Fields),
c_ext(S, Mod, F),
fail
;
split(Codes, ",; ()\t\"\'", Fields), %'
%writeln(Fields),
line_count(S, Lines),
c_line(Fields , Mod, F:Lines),
fail
).
c_line(["}"], Mod, _) :- !,
nb_setval( current_module, Mod ).
c_line(Line, _Mod, _) :-
append( _, [ "CurrentModule", "=", M|_], Line),
system_mod(M, _Mod, Mod, _),
nb_setval( current_module, Mod ).
c_line(Line, Mod, F: LineP) :-
break_line( Line, N/A, Fu),
assert( node( Mod, N/A, F-LineP, Fu ) ),
handle_pred( Mod, N, A, F ).
c_ext( S, Mod, F ) :-
repeat,
stream_property( S, position(Pos) ),
read_line_to_codes( S, Codes ),
(
Codes == end_of_file
->
!
;
string_codes(String, Codes),
( sub_string( Codes, _, _, _, `NULL` )
->
!
;
split_string(String, `,; (){}\t\"\'`, [`FRG`, NS,AS,FS|_]),
atom_string(N,NS),
atom_string(Fu,FS),
catch( number_string(A, AS), Error, handle( String , Error ) ),
stream_position_data( line_count, Pos, Line ),
assert( node( Mod , N/A, F-Line, Fu ) ),
handle_pred( Mod, N, A, F )
;
split_string(String , `,; (){}\t\"\'`, [NS,AS,FS|_]),
atom_string(N,NS),
atom_string(Fu,FS),
catch( number_string(A, AS), Error, handle( String , Error ) ),
break_line( Line, N/A, swi(Fu)) ,
assert( node( Mod, N/A, F-Line, Fu ) ),
handle_pred( Mod, N, A, F )
)
).
break_line( Line, N/A, c(Fu)) :-
take_line( Line, NS, AS, FS ), !,
atom_codes(N,NS),
atom_codes(Fu,FS),
catch( number_codes(A, AS), Error, handle( Line, Error ) ).
break_line( Line, N/A, swi(Fu)) :-
take_line( Line, NS, AS, FS ), !,
atom_codes(N,NS),
catch( number_codes(A, AS), Error, handle( Line, Error ) ),
append(["pl_",FS,"_",A,"_va"], FuS),
atom_codes(Fu,FuS).
break_line( Line, N/A, bp(Fu)) :-
take_line( Line, NS, AS, FS ), !,
atom_codes(N,NS),
catch( number_codes(A, AS), Error, handle( Line, Error ) ),
append(["pc_",FS,"_",A], FuS),
atom_codes(Fu,FuS).
break_line( Line, N/A, c(FuE, FuB)) :-
take_line( Line, NS, AS, FSE, FSB ), !,
atom_codes(N,NS),
atom_codes(FuE,FSE),
atom_codes(FuB,FSB),
atom_codes(A, AS).
take_line( Line, NS, AS, FS ) :-
append( _, [ "Yap_InitCPred", NS, AS, FS|_], Line), !.
take_line( Line, NS, AS, FS ) :-
append( _, [ "Yap_InitAsmPred", NS, AS, _, FS|_], Line), !.
take_line( Line, NS, AS, FS ) :-
append( _, [ "Yap_InitCmpPred", NS, AS, FS|_], Line), !.
take_line( Line, NS, AS, FS ) :-
append( _, [ "Yap_InitCmpPred", NS, AS, FS|_], Line), !.
take_line( Line, NS, AS, FS ) :-
append( _, [ "YAP_UserCPredicate", NS, FS, AS|_], Line), !.
take_line( Line, NS, AS, FS ) :-
append( _, [ "PRED", NS0, AS, FS|_], Line), !,
append( ["pl_", NS0, AS, "_va"], NS ).
take_line( Line, NS0, AS, FS ) :-
append( _, [ "PRED_IMPL", NS0, AS, FS|_], Line), !,
append( ["pl_", NS0, AS, "_va"], FS ).
take_line( Line, NS, AS, FS ) :-
append( _, [ "PL_register_foreign", NS, AS, FS|_], Line), !.
take_line( Line, NS, AS, FS ) :-
append( _, [ "PRED_DEF", NS, AS,_FS|_], Line), !,
append( ["pl_", NS, AS, "_va"], FS ).
take_line( Line, NS, AS, FS ) :-
append( _, [ "FRG", NS, AS, FS|_], Line), !.
% from odbc
take_line( Line, NS, AS, FS ) :-
append( _, [ "NDET", NS, AS, FS|_], Line), !.
take_line( Line, NS, AS, FS ) :-
append( _, [ "DET", NS, AS, FS|_], Line), !.
take_line( Line, AS, FS ) :-
append( _, [ "REGISTER_CPRED", FS, AS], Line), !.
take_line( Line, NS, AS, FSE, FSB ) :-
append( _, [ "Yap_InitCPredBack", NS, AS, _, FSE, FSB|_], Line), !.
system_mod("ATTRIBUTES_MODULE", _, attributes, user ).
system_mod("HACKS_MODULE", _, '$hacks' , sys ).
system_mod("USER_MODULE", _, user, user ).
system_mod("DBLOAD_MODULE", _, '$db_load', sys ).
system_mod("GLOBALS_MODULE", _, globals, sys ).
system_mod("ARG_MODULE", _, arg, sys ).
system_mod("PROLOG_MODULE", _ , prolog, sys ).
system_mod("RANGE_MODULE", _, range, user ).
system_mod("SWI_MODULE", _, swi, sys ).
system_mod("OPERATING_SYSTEM_MODULE", _, system , sys ).
system_mod("TERMS_MODULE", _, terms , sys).
system_mod("SYSTEM_MODULE", _, system, sys ).
system_mod("IDB_MODULE", _, idb, user ).
system_mod("CHARSIO_MODULE", _, charsio, sys ).
system_mod("cm", M, M, user ).
call_c_files( File, Mod, _Fun, [CFile] ) :-
search_file( CFile, File, c, F ),
c_file(F, Mod).
call_c_files( File, Mod, _Fun, CFile ) :-
CFile \= [_|_],
search_file( CFile, File, c, F ),
c_file(F, Mod).
%
:- dynamic undo/3.
directive(G, F, M) :-
undo(G,F,M),
!.
directive(set_prolog_flag(Fl,V), F, M) :-
!,
prolog_flag(Fl, O, V),
asserta( undo( set_prolog_flag(Fl, O), F, M)),
set_prolog_flag(Fl, V).
directive(yap_flag(Fl,V), F, M) :-
!,
prolog_flag(Fl, O, V),
asserta( undo( set_prolog_flag(Fl, O), F, M)),
set_prolog_flag(Fl, V).
directive(yap_flag(Fl,O,V), F, M) :-
!,
prolog_flag(Fl, O, V),
asserta( undo( set_prolog_flag(Fl, O), F, M)),
set_prolog_flag(Fl, V).
directive(op(X,Y,O), _F, M) :-
!,
op( X, Y, M:O).
directive(G, F, M) :-
assert(M:G, R),
asserta( undo(erase(R), F, M)).
clean_up(F, M) :-
undo( G , F, M),
call( G ),
fail.
clean_up(_,_).
%
%
%
%
pl_interfs(Lev0, Dir - Mod) :-
\+ ( fullskip( Dir ) ),
% format('%~*| ************* ~a\n', [Lev0,Dir]),
Lev is Lev0+1,
nb_setval( current_module, Mod ),
atom( Dir ),
directory_files( Dir , Files),
member( File, Files ),
atom_concat([Dir,'/',File], Path),
( ( sub_atom(File,_,_,0,'.yap') ; sub_atom(File,_,_,0,'.pl') ; sub_atom(File,_,_,0,'.ypp') ) ->
absolute_file_name( Path, APath ),
pl_interface( APath , Mod, Lev )
;
exists_directory( Path ),
\+ atom_concat(_, '/.', Path),
\+ atom_concat(_, '/..', Path),
\+ atom_concat(_, '/.git', Path),
absolute_file_name( Path, APath ),
\+ doskip( APath ),
pl_interfs( Lev0, APath - Mod )
),
fail.
pl_interfs(_, _).
%%
% pl_interface( File, Mod, Level)
% adds a node to the file graph and marks which files are modules
%
% main side-effect facts like edge( F0-Mod:File )
% exported( ( FMNATarget :- FMNASource ) ) ou exported(F-M, Op ),
% module_on ( M, File )
%
pl_interface(F, Mod, _Lev) :-
module_on( F , _Mod, L ),
maplist( private(F, Mod), L ),
!.
pl_interface(F, Mod, _) :-
consulted(F, Mod ),
!.
pl_interface(F, Mod, Lev) :-
% format('~*|------------------------- ~a~n',[Lev,F]),
% ( sub_atom(F,_,_,_,'matrix.yap') -> spy get_interf ; true ),
% ( sub_atom( F, _, _, 0, 'gecode.yap' ) -> spy user_deps; true ),
% ( F = '/Users/vsc/git/yap-6.3/library/examples/mat.yap' -> trace ; true ),
assert_new(consulted(F, Mod ) ),
nb_getval( current_module, M0 ),
nb_getval( private, Default ),
nb_setval( private, false ),
nb_getval( file_entry, OF:OMod ),
nb_setval( file_entry, F:Mod ),
preprocess_file( F, PF ),
catch( open(PF, read, S, [script(true)]) , _, fail ),
repeat,
nb_getval( current_module, MR ),
catch( read_clause( S, T, [module( MR ),term_position(Pos),comments(Comment)] ), Throw, loop_error( S, MR:Throw)),
( T == end_of_file
->
!,
close(S),
(
c_dep( F, Fc),
c_file( Fc, MR ),
fail
% cleanup
;
module_on( F , _M, _Is)
->
% also, close ops defined in the module M, if M \= Mod
nb_setval( private, Default ),
nb_setval( file_entry, OF:OMod )
;
true
),
clean_up( MR, F ),
nb_setval( current_module, M0 )
% writeln('***************************<<<<<<<<<<<'-M0),
% (current_op(X,Y,O), write(M0:O), fail;nl)
;
nb_getval( current_module, MC0 ),
stream_position_data( line_count, Pos, Line ),
nb_setval( line, Line ),
( Mod == prolog -> MC = prolog ; MC = MC0 ),
Lev1 is Lev+1,
get_interface( T, F, MC, Lev1 ),
get_graph( T, F, Pos, MC ),
fail
).
get_interface( T, _F, _M0, _ ) :-
% ( T = (:- op(_,_,_)) -> trace ; true ),
var(T),
!.
%% switches to new file n
get_interface( (:- D ), F, M , Lev) :-
!,
get_directive( D, F, M, Lev ).
get_interface( (?- _ ), _F, _M , _Lev) :-
!.
get_interface( T, F, M0 , _Lev) :-
always_strip_module( M0:T, M, NT),
(
NT = goal_expansion(_,_) ;
NT = goal_expansion(_,_,_);
NT = term_expansion( _, _ )
),
!,
catch(directive(NT, F, M), Error, loop_error(c_file,Error)).
get_interface( ( M:H :- _B), F, _M , _Lev) :-
!,
functor( H, N, A),
handle_pred( M, N, A, F ).
% not the time t
get_interface( (H :- _B), F, M , _Lev) :-
!,
functor( H, N, A),
handle_pred( M, N, A, F ).
get_interface( G , F, M , _Lev) :-
functor( G, N, A),
handle_pred( M, N, A, F ).
get_directive( V , _F, _M , _Lev) :-
var( V ),
!.
get_directive( module( NM0, Is ), F, _M , _Lev) :-
!,
(
(NM0 = system(NM) -> true ; NM0 = system(NM,_) -> true ; NM = NM0 ),
assert(module_file( F, NM ) ),
nb_setval( current_module, NM ),
assert( module_on( F , NM, Is) ),
maplist( public(F, NM), Is ),
nb_setval( private, true )
->
true
;
writeln(oops:module( NM0, Is )),
fail
).
get_directive( reexport( Loc, Is ), F, M , Lev) :-
!,
search_file( Loc, F, prolog, F1),
pl_interface(F1, M, Lev),
module_on( F1 , NM, Is0),
(var(Is) ->
Is = Is0
;
true
),
% extend the interface.rg
retract( module_on( F , M, IsOld) ),
append( Is, IsOld, NIs ),
assert( module_on( F , M, NIs) ),
maplist( exported(F, M, F1, NM), NIs ).
get_directive( use_module( Loc, Is ), F, M , Lev) :-
!,
include_files( F, M, Is, Lev, Loc ).
get_directive( use_module( Loc ), F, M , Lev) :-
!,
include_files0( F, M, Lev, Loc ).
% nb_getval(current_module,MM), writeln(NM:MM:M).
get_directive( use_module( Loc, Is, _ ), F, M , Lev) :-
!,
include_files( F, M, Is, Lev, Loc).
get_directive( consult( Files ), F, M , Lev) :-
!,
include_files0( F, M , Lev, Files).
get_directive( reconsult( Files ), F, M , Lev) :-
!,
include_files0( F, M, Lev, Files ).
get_directive( ensure_loaded( Files ), F, M , Lev) :-
!,
include_files0( F, M, Lev, Files ).
get_directive( include( Files ), F, M , Lev) :-
!,
include_files0( F, M, Lev, Files ).
get_directive( load_files( Files , [_|_] ), F, M , Lev) :-
!,
include_files0( F, M, Lev, Files ).
get_directive( bootstrap( Files ), F, M , Lev) :-
!,
include_files0( F, M, Lev, Files ).
get_directive( ( G -> _ ; _ ) , F, M, Lev) :-
!,
get_directive( G , F, M, Lev ).
get_directive( catch( G , _, _ ) , F, M, Lev) :-
!,
get_directive( G , F, M, Lev).
get_directive( initialization( G , now ) , F, M, Lev) :-
!,
get_directive( G , F, M, Lev).
get_directive( load_files( Files , [_|_] ), F, M , Lev) :-
!,
include_files0( F, M, Lev, Files ).
get_directive( [] , _F0, _M , _Lev) :- !.
get_directive( [F1|Fs] , F, M , Lev) :-
strip_module( M:F, M1, F1),
!,
include_files0( F, M1, Lev, F1 ),
get_directive( Fs , F, M , Lev).
% don't actually use \this one.
get_directive( load_foreign_files(Fs, _, Fun), F, M , _Lev) :-
!,
call_c_files( F, M, Fun, Fs ).
get_directive( load_foreign_library(F), F0, M , _Lev) :-
!,
always_strip_module(M:F, M1, F1),
call_c_files( F0, M1, '', F1 ).
get_directive( load_foreign_library(F,Fun), F0, M , _Lev) :-
!,
always_strip_module(M:F, M1, F1),
call_c_files( F0, M1, Fun, F1 ).
get_directive( use_foreign_library(F), F0, M , _Lev) :-
!,
always_strip_module(M:F, M1, F1),
call_c_files( F0, M1, '', F1 ).
get_directive( system_module( _NM, _Publics, _Hiddens), _F, _M , _Lev) :-
nb_setval( current_module, prolog ),
!.
get_directive( style_checker( _ ), _F, _M , _Lev) :-
!.
get_directive( dynamic( T ), F, M , _Lev) :-
!,
declare_functors( T, F, M ).
get_directive( multifile( T ), F, M , _Lev) :- % public?
!,
declare_functors( T, F, M ).
get_directive( meta_predicate( T ), F, M , _Lev) :-!,
declare_terms( T, F, M ), % public?
!.
get_directive( '$install_meta_predicate'( H, M), F, __M , _Lev) :-
!,
declare_functors( H, F, M ).
get_directive( thread_local( T ), F, M , _Lev) :-
!,
declare_functors( T, F, M ).
get_directive( op( X, Y, Z), _F, M , _Lev) :-
!,
new_op(M,M,X,Y,Z).
get_directive( record( Records ), F, M , _Lev) :-
!,
handle_record( Records, F, M).
get_directive( set_prolog_flag(dollar_as_lower_case,On), F, M , _Lev) :-
!,
catch(directive(set_prolog_flag(dollar_as_lower_case,M:On), F), Msg, loop_error(c_file, Msg) ).
% support SWI package record
handle_record( (Records1, Records2), F, M ) :-
!,
handle_record( Records1, F, M ),
handle_record( Records2, F, M ).
handle_record( Record, F, M ) :-
Record =.. [Constructor|Fields],
atom_concat(Constructor, '_data', Data),
handle_pred( M, Data, 3, F),
atom_concat(default_, Constructor, New),
handle_pred( M, New, 1, F),
atom_concat(is_, Constructor, Is),
handle_pred( M, Is, 1, F),
atom_concat(make_, Constructor, Make),
handle_pred( M, Make, 2, F),
handle_pred( M, Make, 3, F),
atom_concat([set_, Constructor,'_fields'], Sets),
handle_pred( M, Sets, 3, F),
handle_pred( M, Sets, 4, F),
atom_concat([set_, Constructor,'_field'], Set),
handle_pred( M, Set, 3, F),
maplist( handle_record_field( Constructor, F, M) , Fields ).
handle_record_field( Constructor, F, M, Name:_=_ ) :-
!,
handle_record_field_name( Constructor, F, M, Name).
handle_record_field( Constructor, F, M, Name:_ ) :-
!,
handle_record_field_name( Constructor, F, M, Name).
handle_record_field( Constructor, F, M, Name=_ ) :-
!,
handle_record_field_name( Constructor, F, M, Name).
handle_record_field( Constructor, F, M, Name ) :-
handle_record_field_name( Constructor, F, M, Name).
handle_record_field_name( Constructor, F, M, Name) :-
atom_concat([ Constructor,'_', Name], Val),
handle_pred( M, Val, 2, F),
atom_concat([ set_, Name, '_of_', Constructor ], Set),
handle_pred( M, Set, 3, F),
handle_pred( M, Set, 2, F),
atom_concat([ nb_set_, Name, '_of_', Constructor ], Set),
handle_pred( M, Set, 3, F),
handle_pred( M, Set, 2, F).
handle_pred( M, N, A, F ) :-
(
system_mod( _, _, M, sys )
->
(
atom_concat('$',_,N)
->
private( F, M, N/A )
;
public( F, M, N/A )
)
;
( nb_getval( private, false )
->
public( F, M, N/A )
;
private( F, M, N/A )
)
).
exported( _NF, _F, NM, M, op(X,Y,Z)) :-
!,
new_op(M, NM, X,Y,Z).
exported( NF, F, NM, M, N/A) :- !,
% sink no more
assert_new_e( F,M:N/A , NF, NM:N/A ).
exported( NF, F, NM, M, N/A as NN) :- !,
% sink no more
assert_new_e( F,M:NN/A , NF,NM:N/A ).
exported( NF, F, NM, M, N//A) :- !,
A2 is A+2,
% sink no more
assert_new_e( F,M:N/A2 , NF, NM:N/A2 ).
exported( NF, F, NM, M, N//A as NN) :- !,
A2 is A+2,
% sink no more
assert_new_e( F, M:NN/A2 , NF, NM:N/A2 ).
include_files0( F, M, Lev, Files ) :-
include_files( F, M, _Is, Lev, Files ).
include_files( F, M, Is, Lev, Files ) :-
maplist( include_files( F, M, Is, Lev ), Files ),
!.
include_files( F, M, Is, Lev, -Files ) :-
!,
include_files( F, M, Is, Lev, Files).
include_files( F, M, Is, Lev, Files ) :-
!,
always_strip_module(M:Files, M1, NFiles),
include_file( F, M1, Is, Lev, NFiles ).
include_file( F, M, Is, Lev, Loc ) :-
is_list( Loc ), !,
maplist( include_file( F, M, Is, Lev), Loc ).
include_file( F, M, Is0, Lev, Loc ) :-
% depth visit\
(
nb_getval( private, Private ), % find the file
once( search_file( Loc, F, prolog, NF ) ),
pl_interface(NF, M, Lev),
% should verify Is in _Is
%trace,
( module_on(NF, NM, Is)
->
( var(Is0) -> Is = Is0 ; true ),
maplist( exported( NF, F, NM, M), Is0 )
;
true
),
nb_setval( private, Private )
->
true
;
writeln(bad_include_file( F, M, Is0, Lev, Loc )),
fail
).
source_files( F, M, Lev, Files ) :-
maplist( source_files( F, M, Lev ), Files ),
!.
source_files( F, M, Lev, Loc ) :-
source_file( F, M, Lev, Loc ).
source_file( F, M, Loc, Lev ) :-
once( search_file( Loc, F, prolog, NF ) ),
% depth visit
pl_source(NF, F, M, Lev). % should verify Is in _Is
pl_source(F, F0, Mod, Lev) :-
nb_getval( current_module, MR0 ),
preprocess_file( F, PF ),
% format('%~*| ************* ~a\n', [Lev,PF]),
catch( open(PF, read, S, []) , _, fail ),
repeat,
nb_getval( current_module, MR ),
%( sub_atom(F,_,_,_,'examples/matrix.yap') -> spy get_interf ; nospyall ),
catch( read_clause( S, T, [module( MR ),term_position(Pos)] ), Throw, loop_error( S, Throw)),
(
T == end_of_file
->
!,
nb_setval( current_module, MR ),
close(S),
nb_setval( current_module, MR0 )
;
nb_getval( current_module, MC0 ),
stream_position_data( line_count, Pos, Line ),
nb_setval( line, Line ),
( Mod == prolog -> MC = prolog ; MC = MC0 ),
get_interface( T, F0, Lev, MC ),
fail
).
declare_functors( T, _F, _M1) :- var(T), !,
error( unbound_variable ).
declare_functors( M:T, F, _M1) :- !,
declare_functors( T, F, M).
declare_functors( (T1,T2), F, M1) :- !,
declare_functors( T1, F, M1),
declare_functors( T2, F, M1).
declare_functors( Ts, F, M1) :-
maplist( declare_functor( F, M1), Ts ), !.
declare_functors( T, F, M1) :-
declare_functor( F, M1, T).
declare_functor(File, M, N/A) :-
handle_pred( M, N, A, File ).
declare_terms( T, _F, _M1) :- var(T), !,
error( unbound_variable ).
declare_terms( M:T, F, _M1) :- !,
declare_functors( T, F, M).
declare_terms( (N1,N2), F, M) :-
number(N1),
number(N2),
!,
declare_term( F, M, (N1,N2)).
declare_terms( (T1,T2), F, M1) :- !,
declare_terms( T1, F, M1),
declare_terms( T2, F, M1).
declare_terms( Ts, F, M1) :-
maplist( declare_term( F, M1), Ts ), !.
declare_terms( T, F, M1) :-
declare_term( F, M1, T).
declare_term(F, M, S) :-
functor(S, N, A),
handle_pred( M, N, A, F ).
handle(Line, Error ) :-
format('~s caused Error ~w~n~n', [Line, Error]),
fail.