Small changes for modularity improvements

packages/ProbLog/problog.yap

@@ -372,7 +372,7 @@
 :- dynamic dynamic_probability_fact_extract/2.
 
 % for storing continuous parts of proofs (Hybrid ProbLog)
-:- dynamic hybrid_proof/4.
+:- dynamic hybrid_proof/3, hybrid_proof/4.
 :- dynamic hybrid_proof_disjoint/4.
 
 % ProbLog files declare prob. facts as P::G
@@ -473,7 +473,9 @@ init_global_params :-
   % on initialization, the current dir is the one where the user's file is located
   % should be changed to use temporary folder structure of operating system
   %%%%%%%%%%%%
-  problog_define_flag(dir, problog_flag_validate_directory, 'directory for files', WorkDir, output),
+  tmpname(TempFolder),
+  atomic_concat([TempFolder, '_problog'], TempProblogFolder),
+  problog_define_flag(dir, problog_flag_validate_directory, 'directory for files', WorkDir, TempProblogFolder),
   check_existance('problogbdd').
 
 check_existance(FileName):-
@@ -676,6 +678,7 @@ is_valid_gaussian(X) :-
 	 throw(invalid_gaussian(X))
 	).
 
+:- multifile(user:term_expansion/1).
 
 user:term_expansion(Goal, problog:ProbFact) :-
 	compound(Goal),

packages/ProbLog/problog/os.yap

@@ -223,7 +223,7 @@
 % load our own modules
 :- ensure_loaded(flags).
 
-:- dynamic [problog_dir/1, problog_working_path/1].
+:- dynamic [problog_path/1, problog_working_path/1].
 
 set_problog_path(Path):-
 	retractall(problog_path(_)),
@@ -262,7 +262,7 @@ empty_bdd_directory(Path) :-
 	ground(Path),
 
 	concat_path_with_filename(Path,'query_*',Files),	
-	atomic_concat(['rm -f ',Files],Command),
+	atomic_concat(['rm -f "', Files, '"'],Command),
 	(shell(Command) -> true; true).
 %========================================================================
 %= store the current succes probabilities for training and test examples
@@ -307,7 +307,7 @@ calc_md5_intern(Filename,Command,MD5) :-
 	%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 	(	% read 32 Bytes from stdout of process
 		repeat,
-		get0(S,C),
+		get_code(S,C),
 
 		(
 		 C== -1

packages/ProbLog/problog/tptree.yap

@@ -419,6 +419,7 @@ merge_ptree(T1, T2, T3) :-
 % - ptree_decomposition -> ptree_decomposition_struct
 % - bdd_ptree_script -> bdd_struct_ptree_script
 %%%%%%%%%%%%%%%%%%%%%%%%
+:- dynamic c_num/1.
 
 bdd_struct_ptree(Trie, FileBDD, Variables) :-
     bdd_struct_ptree_script(Trie, FileBDD, Variables),
@@ -734,13 +735,13 @@ bdd_vars_script_intern2(A) :-
 bdd_pt(Trie, false) :-
 	empty_ptree(Trie),
 	!,
-	once(retractall(c_num(_))),
-	once(assert(c_num(2))).
+	retractall(c_num(_)),
+	assert(c_num(2)).
 bdd_pt(Trie, true) :-
 	trie_check_entry(Trie, [true], _),
 	!,
-	once(retractall(c_num(_))),
-	once(assert(c_num(2))).
+	retractall(c_num(_)),
+	assert(c_num(2)).
 
 % general case: transform trie to nested tree structure for compression
 bdd_pt(Trie, CT) :-