allow conditional compilation
git-svn-id: https://yap.svn.sf.net/svnroot/yap/trunk@1965 b08c6af1-5177-4d33-ba66-4b1c6b8b522a
This commit is contained in:
vsc
parent
268ad4ab73
commit
ff4aa369be
@ -3492,10 +3492,6 @@ compaction_phase(tr_fr_ptr old_TR, CELL *current_env, yamop *curp, CELL *max)
|
||||
total_marked += total_oldies;
|
||||
}
|
||||
} else {
|
||||
if (GcCalls==355) {
|
||||
fprintf(stderr,"Start=%p,%pn %ld, %ld\n",H0,HGEN, total_oldies, total_marked);
|
||||
|
||||
}
|
||||
if (HGEN != H0) {
|
||||
CurrentH0 = H0;
|
||||
H0 = HGEN;
|
||||
|
||||
@ -17,6 +17,7 @@
|
||||
|
||||
<h2>Yap-5.1.3:</h2>
|
||||
<ul>
|
||||
<li> NEW: support conditional compilation using if/1,elif/1,else/0,endif/0 directives.</li>
|
||||
<li> FIXED: delay abort until garbage collection or stack shifting is over.</li>
|
||||
<li> FIXED: grow_trail assumed SREG points to stack top!</li>
|
||||
<li> FIXED: latest SWI chr.</li>
|
||||
|
||||
84
docs/yap.tex
84
docs/yap.tex
@ -160,6 +160,7 @@ Subnodes of Encoding
|
||||
Subnodes of Loading Programs
|
||||
* Compiling:: Program Loading and Updating
|
||||
* Setting the Compiler:: Changing the compiler's parameters
|
||||
* Conditional Compilation:: Compiling program fragments
|
||||
* Saving:: Saving and Restoring Programs
|
||||
|
||||
Subnodes of Modules
|
||||
@ -1535,6 +1536,7 @@ writing, writing a BOM can be requested using the option
|
||||
Loading Programs
|
||||
* Compiling:: Program Loading and Updating
|
||||
* Setting the Compiler:: Changing the compiler's parameters
|
||||
* Conditional Compilation:: Compiling program fragments
|
||||
* Saving:: Saving and Restoring Programs
|
||||
|
||||
@end menu
|
||||
@ -1616,7 +1618,7 @@ files specified by @var{F} into the file being currently consulted.
|
||||
|
||||
@end table
|
||||
|
||||
@node Setting the Compiler, Saving, Compiling, Loading Programs
|
||||
@node Setting the Compiler, Conditional Compilation, Compiling, Loading Programs
|
||||
@section Changing the Compiler's Behavior
|
||||
|
||||
This section presents a set of built-ins predicates designed to set the
|
||||
@ -1869,7 +1871,85 @@ Since YAP4.3.0 multifile procedures can be static or dynamic.
|
||||
|
||||
@end table
|
||||
|
||||
@node Saving, , Setting the Compiler, Loading Programs
|
||||
@node Conditional Compilation, Saving, Setting the Compiler, Loading Programs
|
||||
|
||||
@section Conditional Compilation
|
||||
|
||||
@c \index{if, directive}%
|
||||
Conditional compilation builds on the same principle as
|
||||
@code{term_expansion/2}, @code{goal_expansion/2} and the expansion of
|
||||
grammar rules to compile sections of the source-code
|
||||
conditionally. One of the reasons for introducing conditional
|
||||
compilation is to simplify writing portable code.
|
||||
@c See \secref{dialect}
|
||||
@c for more information. Here is a simple example:
|
||||
|
||||
@c @table code
|
||||
@c :- if(\+source_exports(library(lists), suffix/2)).
|
||||
|
||||
@c suffix(Suffix, List) :-
|
||||
@c append(_, Suffix, List).
|
||||
|
||||
@c :- endif.
|
||||
@c \end{code}
|
||||
|
||||
Note that these directives can only be appear as separate terms in the
|
||||
input. Typical usage scenarios include:
|
||||
|
||||
@itemize @bullet
|
||||
@item Load different libraries on different dialects
|
||||
@item Define a predicate if it is missing as a system predicate
|
||||
@item Realise totally different implementations for a particular
|
||||
part of the code due to different capabilities.
|
||||
@item Realise different configuration options for your software.
|
||||
@end itemize
|
||||
|
||||
|
||||
@table @code
|
||||
@item if(+@var{Goal})
|
||||
@findex if/1 directive
|
||||
@snindex if/1
|
||||
@cnindex if/1
|
||||
Compile subsequent code only if @var{Goal} succeeds. For enhanced
|
||||
portability, @var{Goal} is processed by @code{expand_goal/2} before execution.
|
||||
If an error occurs, the error is printed and processing proceeds as if
|
||||
@var{Goal} has failed.
|
||||
|
||||
@item else
|
||||
@findex else/0 directive
|
||||
@snindex else/0
|
||||
@cnindex else/0
|
||||
Start `else' branch.
|
||||
|
||||
@item endif
|
||||
@findex endif/0 directive
|
||||
@snindex endif/0
|
||||
@cnindex endif/0
|
||||
End of conditional compilation.
|
||||
|
||||
@item elif(+@var{Goal})
|
||||
@findex elif/1 directive
|
||||
@snindex elif/1
|
||||
@cnindex elif/1
|
||||
Equivalent to @code{:- else. :-if(Goal) ... :- endif.} In a sequence
|
||||
as below, the section below the first matching elif is processed, If
|
||||
no test succeeds the else branch is processed.
|
||||
|
||||
@example
|
||||
:- if(test1).
|
||||
section_1.
|
||||
:- elif(test2).
|
||||
section_2.
|
||||
:- elif(test3).
|
||||
section_3.
|
||||
:- else.
|
||||
section_else.
|
||||
:- endif.
|
||||
@end example
|
||||
|
||||
@end table
|
||||
|
||||
@node Saving, , Conditional Compilation, Loading Programs
|
||||
@section Saving and Loading Prolog States
|
||||
|
||||
@table @code
|
||||
|
||||
256
pl/boot.yap
256
pl/boot.yap
@ -56,6 +56,8 @@ true :- true.
|
||||
('$exit_undefp' -> true ; true),
|
||||
prompt(' ?- '),
|
||||
nb_setval('$break',0),
|
||||
nb_setval('$if_level',0),
|
||||
nb_setval('$endif',off),
|
||||
% '$set_read_error_handler'(error), let the user do that
|
||||
nb_setval('$debug',off),
|
||||
nb_setval('$trace',off),
|
||||
@ -80,121 +82,121 @@ true :- true.
|
||||
'$startup_reconsult',
|
||||
'$startup_goals'.
|
||||
|
||||
% Start file for yap
|
||||
% Start file for yap
|
||||
|
||||
/* I/O predicates */
|
||||
/* I/O predicates */
|
||||
|
||||
/* meaning of flags for '$write' is
|
||||
/* meaning of flags for '$write' is
|
||||
1 quote illegal atoms
|
||||
2 ignore operator declarations
|
||||
4 output '$VAR'(N) terms as A, B, C, ...
|
||||
8 use portray(_)
|
||||
*/
|
||||
*/
|
||||
|
||||
/* main execution loop */
|
||||
'$read_vars'(Stream,T,Mod,Pos,V) :-
|
||||
'$read'(true,T,Mod,V,Pos,Err,Stream),
|
||||
(nonvar(Err) ->
|
||||
'$print_message'(error,Err), fail
|
||||
;
|
||||
true
|
||||
).
|
||||
/* main execution loop */
|
||||
'$read_vars'(Stream,T,Mod,Pos,V) :-
|
||||
'$read'(true,T,Mod,V,Pos,Err,Stream),
|
||||
(nonvar(Err) ->
|
||||
'$print_message'(error,Err), fail
|
||||
;
|
||||
true
|
||||
).
|
||||
|
||||
% reset alarms when entering top-level.
|
||||
'$enter_top_level' :-
|
||||
'$alarm'(0, 0, _, _),
|
||||
fail.
|
||||
'$enter_top_level' :-
|
||||
'$clean_up_dead_clauses',
|
||||
fail.
|
||||
'$enter_top_level' :-
|
||||
recorded('$restore_goal',G,R),
|
||||
erase(R),
|
||||
prompt(_,' | '),
|
||||
'$system_catch'('$do_yes_no'((G->true),user),user,Error,user:'$Error'(Error)),
|
||||
fail.
|
||||
'$enter_top_level' :-
|
||||
nb_getval('$break',BreakLevel),
|
||||
(
|
||||
nb_getval('$trace',on)
|
||||
->
|
||||
TraceDebug = trace
|
||||
;
|
||||
nb_getval('$debug', on)
|
||||
->
|
||||
TraceDebug = debug
|
||||
;
|
||||
true
|
||||
),
|
||||
'$print_message'(informational,prompt(BreakLevel,TraceDebug)),
|
||||
fail.
|
||||
'$enter_top_level' :-
|
||||
get_value('$top_level_goal',GA), GA \= [], !,
|
||||
set_value('$top_level_goal',[]),
|
||||
'$run_atom_goal'(GA),
|
||||
set_value('$live','$false').
|
||||
'$enter_top_level' :-
|
||||
prompt(_,' ?- '),
|
||||
prompt(' | '),
|
||||
'$run_toplevel_hooks',
|
||||
'$read_vars'(user_input,Command,_,_,Varnames),
|
||||
nb_setval('$spy_gn',1),
|
||||
% stop at spy-points if debugging is on.
|
||||
nb_setval('$debug_run',off),
|
||||
nb_setval('$debug_zip',off),
|
||||
prompt(_,' |: '),
|
||||
'$command'((?-Command),Varnames,top),
|
||||
'$sync_mmapped_arrays',
|
||||
set_value('$live','$false').
|
||||
% reset alarms when entering top-level.
|
||||
'$enter_top_level' :-
|
||||
'$alarm'(0, 0, _, _),
|
||||
fail.
|
||||
'$enter_top_level' :-
|
||||
'$clean_up_dead_clauses',
|
||||
fail.
|
||||
'$enter_top_level' :-
|
||||
recorded('$restore_goal',G,R),
|
||||
erase(R),
|
||||
prompt(_,' | '),
|
||||
'$system_catch'('$do_yes_no'((G->true),user),user,Error,user:'$Error'(Error)),
|
||||
fail.
|
||||
'$enter_top_level' :-
|
||||
nb_getval('$break',BreakLevel),
|
||||
(
|
||||
nb_getval('$trace',on)
|
||||
->
|
||||
TraceDebug = trace
|
||||
;
|
||||
nb_getval('$debug', on)
|
||||
->
|
||||
TraceDebug = debug
|
||||
;
|
||||
true
|
||||
),
|
||||
'$print_message'(informational,prompt(BreakLevel,TraceDebug)),
|
||||
fail.
|
||||
'$enter_top_level' :-
|
||||
get_value('$top_level_goal',GA), GA \= [], !,
|
||||
set_value('$top_level_goal',[]),
|
||||
'$run_atom_goal'(GA),
|
||||
set_value('$live','$false').
|
||||
'$enter_top_level' :-
|
||||
prompt(_,' ?- '),
|
||||
prompt(' | '),
|
||||
'$run_toplevel_hooks',
|
||||
'$read_vars'(user_input,Command,_,_,Varnames),
|
||||
nb_setval('$spy_gn',1),
|
||||
% stop at spy-points if debugging is on.
|
||||
nb_setval('$debug_run',off),
|
||||
nb_setval('$debug_zip',off),
|
||||
prompt(_,' |: '),
|
||||
'$command'((?-Command),Varnames,top),
|
||||
'$sync_mmapped_arrays',
|
||||
set_value('$live','$false').
|
||||
|
||||
'$startup_goals' :-
|
||||
get_value('$extend_file_search_path',P), P \= [],
|
||||
set_value('$extend_file_search_path',[]),
|
||||
'$extend_file_search_path'(P),
|
||||
fail.
|
||||
'$startup_goals' :-
|
||||
recorded('$startup_goal',G,_),
|
||||
'$current_module'(Module),
|
||||
'$system_catch'('$query'(once(G), []),Module,Error,user:'$Error'(Error)),
|
||||
fail.
|
||||
'$startup_goals' :-
|
||||
get_value('$init_goal',GA),
|
||||
GA \= [],
|
||||
set_value('$init_goal',[]),
|
||||
'$run_atom_goal'(GA),
|
||||
fail.
|
||||
'$startup_goals' :-
|
||||
get_value('$myddas_goal',GA), GA \= [],
|
||||
set_value('$myddas_goal',[]),
|
||||
get_value('$myddas_user',User), User \= [],
|
||||
set_value('$myddas_user',[]),
|
||||
get_value('$myddas_db',Db), Db \= [],
|
||||
set_value('$myddas_db',[]),
|
||||
get_value('$myddas_host',HostT),
|
||||
( HostT \= [] ->
|
||||
Host = HostT,
|
||||
set_value('$myddas_host',[])
|
||||
;
|
||||
Host = localhost
|
||||
),
|
||||
get_value('$myddas_pass',PassT),
|
||||
( PassT \= [] ->
|
||||
Pass = PassT,
|
||||
set_value('$myddas_pass',[])
|
||||
;
|
||||
Pass = ''
|
||||
),
|
||||
use_module(library(myddas)),
|
||||
call(db_open(mysql,myddas,Host/Db,User,Pass)),
|
||||
'$myddas_import_all',
|
||||
fail.
|
||||
'$startup_goals'.
|
||||
'$startup_goals' :-
|
||||
get_value('$extend_file_search_path',P), P \= [],
|
||||
set_value('$extend_file_search_path',[]),
|
||||
'$extend_file_search_path'(P),
|
||||
fail.
|
||||
'$startup_goals' :-
|
||||
recorded('$startup_goal',G,_),
|
||||
'$current_module'(Module),
|
||||
'$system_catch'('$query'(once(G), []),Module,Error,user:'$Error'(Error)),
|
||||
fail.
|
||||
'$startup_goals' :-
|
||||
get_value('$init_goal',GA),
|
||||
GA \= [],
|
||||
set_value('$init_goal',[]),
|
||||
'$run_atom_goal'(GA),
|
||||
fail.
|
||||
'$startup_goals' :-
|
||||
get_value('$myddas_goal',GA), GA \= [],
|
||||
set_value('$myddas_goal',[]),
|
||||
get_value('$myddas_user',User), User \= [],
|
||||
set_value('$myddas_user',[]),
|
||||
get_value('$myddas_db',Db), Db \= [],
|
||||
set_value('$myddas_db',[]),
|
||||
get_value('$myddas_host',HostT),
|
||||
( HostT \= [] ->
|
||||
Host = HostT,
|
||||
set_value('$myddas_host',[])
|
||||
;
|
||||
Host = localhost
|
||||
),
|
||||
get_value('$myddas_pass',PassT),
|
||||
( PassT \= [] ->
|
||||
Pass = PassT,
|
||||
set_value('$myddas_pass',[])
|
||||
;
|
||||
Pass = ''
|
||||
),
|
||||
use_module(library(myddas)),
|
||||
call(db_open(mysql,myddas,Host/Db,User,Pass)),
|
||||
'$myddas_import_all',
|
||||
fail.
|
||||
'$startup_goals'.
|
||||
|
||||
'$startup_reconsult' :-
|
||||
get_value('$consult_on_boot',X), X \= [], !,
|
||||
set_value('$consult_on_boot',[]),
|
||||
'$do_startup_reconsult'(X).
|
||||
'$startup_reconsult'.
|
||||
'$startup_reconsult' :-
|
||||
get_value('$consult_on_boot',X), X \= [], !,
|
||||
set_value('$consult_on_boot',[]),
|
||||
'$do_startup_reconsult'(X).
|
||||
'$startup_reconsult'.
|
||||
|
||||
%
|
||||
% MYDDAS: Import all the tables from one database
|
||||
@ -241,26 +243,29 @@ true :- true.
|
||||
'$repeat'.
|
||||
'$repeat' :- '$repeat'.
|
||||
|
||||
'$start_corouts' :- recorded('$corout','$corout'(Name,_,_),R), Name \= main, finish_corout(R),
|
||||
fail.
|
||||
'$start_corouts' :-
|
||||
eraseall('$corout'),
|
||||
eraseall('$result'),
|
||||
eraseall('$actual'),
|
||||
fail.
|
||||
'$start_corouts' :- recorda('$actual',main,_),
|
||||
recordz('$corout','$corout'(main,main,'$corout'([],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[])),_Ref),
|
||||
recorda('$result',going,_).
|
||||
'$start_corouts' :-
|
||||
recorded('$corout','$corout'(Name,_,_),R),
|
||||
Name \= main,
|
||||
finish_corout(R),
|
||||
fail.
|
||||
'$start_corouts' :-
|
||||
eraseall('$corout'),
|
||||
eraseall('$result'),
|
||||
eraseall('$actual'),
|
||||
fail.
|
||||
'$start_corouts' :- recorda('$actual',main,_),
|
||||
recordz('$corout','$corout'(main,main,'$corout'([],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[],[])),_Ref),
|
||||
recorda('$result',going,_).
|
||||
|
||||
'$command'(C,VL,Con) :-
|
||||
'$access_yap_flags'(9,1), !,
|
||||
'$command'(C,VL,Con) :-
|
||||
'$access_yap_flags'(9,1), !,
|
||||
'$execute_command'(C,VL,Con,C).
|
||||
'$command'(C,VL,Con) :-
|
||||
( (Con = top ; var(C) ; C = [_|_]) ->
|
||||
'$execute_command'(C,VL,Con,C), ! ;
|
||||
expand_term(C, EC),
|
||||
'$execute_commands'(EC,VL,Con,C)
|
||||
).
|
||||
'$command'(C,VL,Con) :-
|
||||
( (Con = top ; var(C) ; C = [_|_]) ->
|
||||
'$execute_command'(C,VL,Con,C), ! ;
|
||||
expand_term(C, EC),
|
||||
'$execute_commands'(EC,VL,Con,C)
|
||||
).
|
||||
|
||||
%
|
||||
% Hack in case expand_term has created a list of commands.
|
||||
@ -289,6 +294,11 @@ true :- true.
|
||||
'$execute_command'(R,_,top,Source) :- db_reference(R), !,
|
||||
'$do_error'(type_error(callable,R),meta_call(Source)).
|
||||
'$execute_command'(end_of_file,_,_,_) :- !.
|
||||
'$execute_command'(Command,_,_,_) :-
|
||||
nb_getval('$if_skip_mode',skip),
|
||||
\+ '$if_directive'(Command),
|
||||
!,
|
||||
fail.
|
||||
'$execute_command'((:-G),_,Option,_) :- !,
|
||||
'$current_module'(M),
|
||||
% allow user expansion
|
||||
|
||||
102
pl/consult.yap
102
pl/consult.yap
@ -200,6 +200,8 @@ use_module(M,F,Is) :-
|
||||
'$csult'([F|L], M) :- '$consult'(F, M), '$csult'(L, M).
|
||||
|
||||
'$do_lf'(ContextModule, Stream, InfLevel, _, Imports, SkipUnixComments, Reconsult, UseModule) :-
|
||||
nb_getval('$if_level',OldIncludeLevel),
|
||||
nb_setval('$if_level',0),
|
||||
nb_getval('$system_mode', OldMode),
|
||||
( OldMode == off -> '$enter_system_mode' ; true ),
|
||||
'$record_loaded'(Stream, ContextModule),
|
||||
@ -246,6 +248,11 @@ use_module(M,F,Is) :-
|
||||
set_value('$consulting',Old),
|
||||
set_value('$consulting_file',OldF),
|
||||
cd(OldD),
|
||||
nb_setval('$if_level',OldIncludeLevel),
|
||||
% surely, we were in run mode or we would not have included the file!
|
||||
nb_setval('$if_skip_mode',run),
|
||||
% back to include mode!
|
||||
nb_setval('$if_level',OldIncludeLevel),
|
||||
'$current_module'(Mod,OldModule),
|
||||
'$bind_module'(Mod, UseModule),
|
||||
'$import_to_current_module'(File, ContextModule, Imports),
|
||||
@ -758,3 +765,98 @@ absolute_file_name(File,Opts,TrueFileName) :-
|
||||
NewName =.. [N,NFile],
|
||||
'$find_in_path'(NewName, Opts, OFile, Goal).
|
||||
|
||||
%
|
||||
% This is complicated because of embedded ifs.
|
||||
%
|
||||
'$if'(_,top) :- !, fail.
|
||||
'$if'(Goal,_) :-
|
||||
nb_getval('$if_level',Level0),
|
||||
Level is Level0 + 1,
|
||||
nb_setval('$if_level',Level),
|
||||
nb_getval('$endif',OldEndif),
|
||||
nb_getval('$if_skip_mode',Mode),
|
||||
nb_setval('$endif',elif(Level,OldEndif,Mode)),
|
||||
fail.
|
||||
% we are in skip mode, ignore....
|
||||
'$if'(Goal,_) :-
|
||||
nb_getval('$endif',elif(Level, OldEndif, skip)), !,
|
||||
nb_setval('$endif',endif(Level, OldEndif, skip)).
|
||||
% we are in non skip mode, check....
|
||||
'$if'(Goal,_) :-
|
||||
('$if_call'(Goal)
|
||||
->
|
||||
% we will execute this branch, and later enter skip
|
||||
nb_getval('$endif',elif(Level,OldEndif,Mode)),
|
||||
nb_setval('$endif',endif(Level,OldEndif,Mode))
|
||||
;
|
||||
% we are now in skip, but can start an elif.
|
||||
nb_setval('$if_skip_mode',skip)
|
||||
).
|
||||
|
||||
'$else'(top) :- !, fail.
|
||||
'$else'(_) :-
|
||||
nb_getval('$if_level',0), !,
|
||||
'$do_error'(context_error(no_if),(:- else)).
|
||||
% we have done an if, so just skip
|
||||
'$else'(_) :-
|
||||
nb_getval('$endif',endif(_,_,_)), !,
|
||||
nb_setval('$if_skip_mode',skip).
|
||||
% we can try the elif
|
||||
'$else'(_) :-
|
||||
nb_getval('$if_level',Level),
|
||||
nb_getval('$endif',elif(Level,OldEndif,Mode)),
|
||||
nb_setval('$endif',endif(Level,OldEndif,Mode)),
|
||||
nb_setval('$if_skip_mode',run).
|
||||
|
||||
'$elif'(_,top) :- !, fail.
|
||||
'$elif'(Goal,_) :-
|
||||
nb_getval('$if_level',0),
|
||||
'$do_error'(context_error(no_if),(:- elif(Goal))).
|
||||
% we have done an if, so just skip
|
||||
'$elif'(_,_) :-
|
||||
nb_getval('$endif',endif(_,_,_)), !,
|
||||
nb_setval('$if_skip_mode',skip).
|
||||
% we can try the elif
|
||||
'$elif'(Goal,_) :-
|
||||
nb_getval('$if_level',Level),
|
||||
nb_getval('$endif',elif(Level,OldEndif,Mode)),
|
||||
('$if_call'(Goal)
|
||||
->
|
||||
% we will not skip, and we will not run any more branches.
|
||||
nb_setval('$endif',endif(Level,OldEndif,Mode)),
|
||||
nb_setval('$if_skip_mode',run)
|
||||
;
|
||||
% we will (keep) on skipping
|
||||
nb_setval('$if_skip_mode',skip)
|
||||
).
|
||||
'$elif'(_,_).
|
||||
|
||||
'$endif'(top) :- !, fail.
|
||||
'$endif'(_) :-
|
||||
% unmmatched endif.
|
||||
nb_getval('$if_level',0),
|
||||
'$do_error'(context_error(no_if),(:- endif)).
|
||||
'$endif'(_) :-
|
||||
% back to where you belong.
|
||||
nb_getval('$if_level',Level),
|
||||
nb_getval('$endif',Endif),
|
||||
Level0 is Level-1,
|
||||
nb_setval('$if_level',Level0),
|
||||
arg(2,Endif,OldEndif),
|
||||
arg(3,Endif,OldMode),
|
||||
nb_setval('$endif',OldEndif),
|
||||
nb_setval('$if_skip_mode',OldMode).
|
||||
|
||||
|
||||
'$if_call'(G) :-
|
||||
catch('$eval_if'(G), E, (print_message(error, E), fail)).
|
||||
|
||||
'$eval_if'(Goal) :-
|
||||
expand_term(Goal,TrueGoal),
|
||||
once(TrueGoal).
|
||||
|
||||
'$if_directive'((:- if(_))).
|
||||
'$if_directive'((:- else)).
|
||||
'$if_directive'((:- elif(_))).
|
||||
'$if_directive'((:- endif)).
|
||||
|
||||
|
||||
@ -50,6 +50,10 @@
|
||||
'$directive'(thread_local(_)).
|
||||
'$directive'(uncutable(_)).
|
||||
'$directive'(encoding(_)).
|
||||
'$directive'(if(_)).
|
||||
'$directive'(else).
|
||||
'$directive'(elif(_)).
|
||||
'$directive'(endif).
|
||||
|
||||
'$exec_directives'((G1,G2), Mode, M) :- !,
|
||||
'$exec_directives'(G1, Mode, M),
|
||||
@ -117,6 +121,14 @@
|
||||
'$table'(PredSpec, M).
|
||||
'$exec_directive'(uncutable(PredSpec), _, M) :-
|
||||
'$uncutable'(PredSpec, M).
|
||||
'$exec_directive'(if(Goal), Context, M) :-
|
||||
'$if'(M:Goal, Context).
|
||||
'$exec_directive'(else, Context, _) :-
|
||||
'$else'(Context).
|
||||
'$exec_directive'(elif(Goal), Context, M) :-
|
||||
'$elif'(M:Goal, Context).
|
||||
'$exec_directive'(endif, Context, _) :-
|
||||
'$endif'(Context).
|
||||
|
||||
|
||||
yap_flag(V,Out) :-
|
||||
|
||||
Reference in New Issue
Block a user