34 lines
		
	
	
		
			709 B
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			34 lines
		
	
	
		
			709 B
		
	
	
	
		
			Python
		
	
	
	
	
	
# python commands
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import sys
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import yap
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#
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# initialize engine
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engine = yap.YAPEngine();
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# engine = yap.YAPEngine(yap.YAPParams());
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def query( s ):
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    q = engine.query(s)
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    while q.next():
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        vs = q.namedVars()
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        if vs.length() == 0:
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            print( "yes" )
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            return
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        else:
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            while vs.length() > 0:
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                eq = vs.car()
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                print( eq.getArg(1).text() + " = " + eq.getArg(2).text() )
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                vs = vs.cdr()
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            s = raw_input("next: ?")
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            if s.find(';') != 0 :
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                return
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    print( "no more answers" )
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    return
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def live():
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    loop = True
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    while loop:
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        s = raw_input("?- ")
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        query( s )
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