def createAutomata(self, inp):
print "Regex: ", inp
nfaObj = regex2nfa(inp)
self.nfa = nfaObj.getNFA()
self.dfaObj = nfa2dfa(self.nfa)
self.dfa = self.dfaObj.getDFA()
self.minDFA = self.dfaObj.getMinimisedDFA()
if self.dotFound:
drawGraph(self.dfa, "dfa")
drawGraph(self.nfa, "nfa")
drawGraph(self.minDFA, "mdfa")
dfafile = "graphdfa.png"
nfafile = "graphnfa.png"
mindfafile = "graphmdfa.png"
self.nfaimagefile = Image.open(nfafile)
self.dfaimagefile = Image.open(dfafile)
self.mindfaimagefile = Image.open(mindfafile)
self.nfaimg = ImageTk.PhotoImage(self.nfaimagefile)
self.dfaimg = ImageTk.PhotoImage(self.dfaimagefile)
self.mindfaimg = ImageTk.PhotoImage(self.mindfaimagefile)
def main():
regex = "(01*1)*1"
if len(sys.argv)>1:
regex = sys.argv[1]
print "Regular Expression: ", regex
nfaObj = regex2nfa(regex)
nfa = nfaObj.getNFA()
dfaObj = nfa2dfa(nfa)
dfa = dfaObj.getDFA()
minDFA = dfaObj.getMinimisedDFA()
print "\nNFA: "
nfaObj.displayNFA()
print "\nDFA: "
dfaObj.displayDFA()
print "\nMinimised DFA: "
dfaObj.displayMinimisedDFA()
if isInstalled("dot"):
drawGraph(dfa, "dfa")
drawGraph(nfa, "nfa")
drawGraph(minDFA, "mdfa")
print "\nGraphs have been created in the code directory"
print minDFA.getDotFile()
aut_nfa.add_transition(1,'x',0)
aut_nfa.add_transition(1,'y',3)
aut_nfa.add_transition(2,'x',0)
aut_nfa.add_transition(2,'y',3)
aut_nfa.add_transition(3,'x',3)
aut_nfa.add_transition(3,'y',3)
####
aut_nfa.add_final_state(3)
aut_nfa.display_automata()
automata.display_nx_automata(aut_nfa, "nfa", "NFA")
##########
# Part 2 #
##########
nfa2dfa_obj = nfa2dfa('nfa2dfa')
nfa2dfa_obj.set_nfa(aut_nfa)
nfa2dfa_obj.set_charset(aut_nfa.char_set)
nfa2dfa_obj.build_dfa()
aut_dfa = nfa2dfa_obj.dfa
nfa2dfa_obj.display_automata()
automata.display_nx_automata(aut_dfa, "dfa", "DFA")
##########
# Part 3 #
##########
nfa2mindfa_obj = dfa2mindfa(aut_dfa)
nfa2mindfa_obj.minimiseIt()
aut_min_dfa = automata("min_dfa")