jupyter

packages/python/pypreds.c

@@ -1,15 +1,6 @@
 
 
 
-
-
-
-
-
-
-
-
-
 #include "Yap.h"
 
 #include "py4yap.h"

packages/python/swig/prolog/yapi.yap

@@ -42,6 +42,8 @@ yapi_query( VarNames, Self ) :-
 		Self.bindings := Dict.
 
 
+
+
 %:- initialization set_preds.
 
 set_preds :-
@@ -70,51 +72,31 @@ argi(N,I,I1) :-
 	I1 is I+1.
 
 python_query( Caller, String		) :-
-	      python_query( Caller, String, _Bindings).
+    python_query( Caller, String, _Bindings).
+
+user:user_python_query( Caller, String, Bindings ) :-
+    python_query( Caller, String, _Bindings).
 
 python_query( Caller, String, Bindings ) :-
 	atomic_to_term( String, Goal, VarNames ),
 	query_to_answer( Goal, VarNames, Status, Bindings),
-	Caller.port := Status,
+	Caller.q.port := Status,
-	       output(Caller, Bindings).
+	output(Caller, Bindings).
 
-output( Caller, Bindings ) :-
-    Caller.answer := {},
- /*  % start_low_level_trace,
-    foldl(ground_dict(answer), Bindings, [], Ts),
-    term_variables( Ts, Hidden),
-    foldl(bv, Hidden , 0, _),
-  */  maplist(into_dict(answer),Bindings),
-  := print(answer)},
-    Caller.answer := answer.
-    
 output( _, Bindings ) :-
     write_query_answer( Bindings ),
     fail.
-output(_Caller, _Bindings).
+output( Caller, Bindings) :-
-    
+     maplist(into_dict(Caller),Bindings).
+
 bv(V,I,I1) :-
     atomic_concat(['__',I],V),
     I1 is I+1.
 
 into_dict(D,V0=T) :-
-    atom(T),
+	 D.q.answer[V0] := T.
-    !,
+
-    D[V0] := T.
+
-into_dict(D,V0=T) :-
-  integer(T),
-writeln((D[V0]:=T)),
-!,
-    D[V0] := T,
-    := print(D).
-into_dict(D,V0=T) :-
-    string(T),
-    !,
-    D[V0] := T.
-into_dict(D,V0=T) :-
-    python_represents(T1,T),
-    D[V0] := T1.
-    
 /**
  *
  */

packages/python/swig/yap4py/yapi.py

@@ -1,7 +1,7 @@
 import readline
 import copy
 from yap4py.yap import *
-from yap4py.systuples import *
+from yap4py.systuples import python_query, show_answer, library, prolog_library, v0, compile, namedtuple
 from os.path import join, dirname
 
 import sys
@@ -52,7 +52,7 @@ class JupyterEngine( Engine ):
             pass
 
 class EngineArgs( YAPEngineArgs ):
-    """ Interface to Engine Options class"""
+    """ Interface to EngneOptions class"""
     def __init__(self, args=None,**kwargs):
         super().__init__()
 
@@ -69,6 +69,7 @@ class Query (YAPQuery):
         super().__init__(g)
         self.engine = engine
         self.port = "call"
+        self.answer = {}
 
     def __iter__(self):
         return self
@@ -80,7 +81,7 @@ class Query (YAPQuery):
         if self.port == "fail" or self.port == "exit":
             raise StopIteration()
         if self.next():
-            return copy.deepcopy(self.answer)
+            return True
         raise StopIteration()
  
 def name( name, arity):
@@ -125,7 +126,7 @@ class YAPShell:
 
     def query_prolog(self, query):
         g = None
-        #import pdb; pdb.set_trace()
+        import pdb; pdb.set_trace()
         #
         # construct a query from a one-line string
         # q is opaque to Python
@@ -147,9 +148,11 @@ class YAPShell:
             engine = self.engine
             bindings   = [] 
             loop = False
-            q = Query( engine,   python_query( engine, query) )
+            self.q = Query( engine, python_query( self, query) )
+            q = self.q
             for answer in q:
-                bindings += [answer]
+                bindings += [q.answer]
+                print(q.answer)
                 if q.done():
                     return bindings
                 if loop:
@@ -170,7 +173,7 @@ class YAPShell:
             if self.q:
                 self.q.close()
                 self.q = None
-            print("No (more) answers")
+            print("No (more) answers, found", bindings)
             return bindings
         except Exception as e:
             if not self.q:
@@ -182,34 +185,41 @@ class YAPShell:
             raise
 
     def live(self, engine, **kwargs):
-        loop = True
+        try:
-        self.q = None
+            loop = True
-        while loop:
+            self.q = None
-            try:
+            while loop:
-                s = input("?- ")
+                try:
-                if not s:
+                    s = input("?- ")
+                    if not s:
+                        continue
+                    else:
+                        self.query_prolog(s)
+                except SyntaxError as err:
+                    print("Syntax Error error: {0}".format(err))
                     continue
-                else:
+                except EOFError:
-                    self.query_prolog(s)
+                    return
-            except SyntaxError as err:
+                except RuntimeError as err:
-                print("Syntax Error error: {0}".format(err))
+                    print("YAP Execution Error: {0}".format(err))
-                continue
+                except ValueError:
-            except EOFError:
+                   print("Could not convert data to an integer.")
-                return
+                except:
-            except RuntimeError as err:
+                    print("Unexpected error:", sys.exc_info()[0])
-                print("YAP Execution Error: {0}".format(err))
+                    raise
-            except ValueError:
+            engine.close()
-                print("Could not convert data to an integer.")
+        except Exception as e:
-            except:
+            print("Exception",e)
-                print("Unexpected error:", sys.exc_info()[0])
+            e.errorNo = 0
-                raise
+            raise
-        engine.close()
+
     #
     # initialize engine
     # engine = yap.YAPEngine();
     # engine = yap.YAPEngine(yap.YAPParams());
     #
     def __init__(self, engine, **kwargs):
+        #import pdb; pdb.set_trace()
         self.engine = engine
 
         self.live(engine)

packages/python/yap_kernel/yap_ipython/prolog/jupyter.yap

@@ -1,4 +1,4 @@
-
+u
 /**
   * @file jupyter.yap
   *
@@ -30,7 +30,7 @@
 
 
  :-	 use_module(library(python)).
- :-	 use_module(library(yapi)).
+:-	 use_module(library(yapi)).
  :-	 use_module(library(complete)).
  :-	 use_module(library(verify)).
 
@@ -73,7 +73,7 @@ jupyter_cell( _Caller, _, Line , _) :-
 jupyter_cell(Caller, _, Line, Bindings ) :-
     Query = Caller,
     catch(
-	python_query(Query,Line, Bindings),
+	user:user_python_query(Query,Line, Bindings),
 	error(A,B),
 	 system_error(A,B)
     ).

packages/python/yap_kernel/yap_ipython/yapi.py

@@ -1,6 +1,5 @@
 import sys
 
-
 from typing import  List
 from traitlets import Bool
 
@@ -509,7 +508,7 @@ class YAPRun(InteractiveShell):
         global engine
         engine = self.engine
         self.errors = []
-        self.query = None
+        self.q = None
         self.os = None
         self.it = None
         self.port = "None"
@@ -542,51 +541,53 @@ class YAPRun(InteractiveShell):
         return self.errors
 
     def prolog(self, s, result):
+
         #
-        # construct a self.queryuery from a one-line string
+        # construct a self.query from a one-line string
-        # self.query is opaque to Python
+        # self.q is opaque to Python
         try:
-            program,squery,_                                                                                                                                                                                                                                                                                                                                                                               ,howmany = self.prolog_cell(s)
+            program,squery,_ ,howmany = self.prolog_cell(s)
             # sys.settrace(tracefunc)
-            if self.query and self.os == (program,squery):
+            if self.q and self.os == (program,squery):
                 howmany += self.iterations
             else:
-                if self.query:
+                if self.q:
-                    self.query.close()
+                    self.q.close()
-                    self.query = None
+                    self.q = None
-                    self.answers = []
+                self.answers = []
-                    result.result = []
+                result.result = []
                 self.os = (program,squery)
                 self.iterations = 0
-                pg = jupyter_query(self.engine,program,squery)
+                pg = jupyter_query(self,program,squery)
-                self.query = Query(self.engine, pg)
+                self.q = Query(self.engine, pg)
-                self.answers = []
+            while self.q.next():
-            for answer in self.query:
-                print( answer )
-                self.answers += [answer]
-                print( self.answers)
                 self.iterations += 1
-                
+                o = '[ '
-            self.os = None
+                o += str(self.iterations )
-            self.query.close()
+                o += '    '
-            self.query = None
+                o += json.dumps(self.q.answer)
+                o += ' ]\n\n'
+                sys.stderr.write( o )
+                self.answers += [self.q.answer]
+                if self.q.port == "exit":
+                    break
+                if self.iterations == howmany:
+                    break
+            if self.q.port != "answer" and self.iterations == howmany:
+                self.q.close()
+                self.q = None
             if self.answers:
-                sys.stderr.write('\n'+'[ ' +str(len(self.answers))+' answer(s): ]\n[ ')
+               return self.answers
-                print( self.answers )
-                result.result = json.dumps(self.answers)
-                sys.stderr.write(result.result+' ]\n\n')
             else:
-                result.result = []
+                return None
-            return result.result
             
      
         except Exception as e:
-            sys.stderr.write('Exception '+str(e)+'in query '+ str(self.query)+
+            sys.stderr.write('Exception '+str(e)+' in query '+ str(self.q)+
-                             '\n  '+str( self.bindings)+ '\n')
+                             '\n  Answers'+ json.dumps( self.answers)+ '\n')
-            has_raised = True
-            result.result = []
-            return result.result
 
+            has_raised = True
+            return result.result
 
 
     def _yrun_cell(self, raw_cell, result, store_history=True, silent=False,
@@ -728,10 +729,8 @@ class YAPRun(InteractiveShell):
                 # state = tracer.runfunc(hist
                 # er_query( self, cell ) )
                 self.shell.last_execution_succeeded = True
-                result.result = answers
         except Exception as e:
             has_raised = True
-            result.result = []
             try:
                 (etype, value, tb) = e
                 traceback.print_exception(etype, value, tb)

pl/debug.yap

@@ -477,14 +477,7 @@ be lost.
 '$trace_goal'(G, M, GoalNumber, H) :-
 	'$undefined'(G, M),
 	!,
-	'$get_predicate_definition'(M:G,  NM:Goal),
+	  '$undefp'([M|G], _ ).
-	( ( M == NM ; NM == prolog), G == Goal
-	->
-	  yap_flag( unknown, Action ),
-	  '$undefp'([M|G], Action )
-	;
-	 '$trace_goal'(Goal, NM, GoalNumber, H)
-	).
 % meta system
 '$trace_goal'(G, M, GoalNumber, H) :-
         '$is_metapredicate'(G, prolog),

pl/top.yap

@@ -741,7 +741,6 @@ write_query_answer( Bindings ) :-
 	'$current_module'(OldModule),
 	repeat,
 		'$system_catch'(dbload_from_stream(Stream, OldModule, db), '$db_load', Error,
-			 user:'$LoopError'(Error, top)),
 	prolog_flag(agc_margin,_,Old),
 	!.
 '$loop'(Stream,Status) :-