def compile_btn_clicked(self):
self.regex2nfa_obj=regex2nfa(self.ui.regex_line_edit.text())
self.regex2nfa_obj.send_error.connect(self.receive_error)
self.regex2nfa_obj.convert_to_nfa()
nfa=self.regex2nfa_obj.nfa
automata.display_nx_automata(nfa, "nfa", "NFA")
nfa2dfa_obj = nfa2dfa('nfa2dfa')
nfa2dfa_obj.set_nfa(nfa)
nfa2dfa_obj.set_charset(nfa.char_set)
nfa2dfa_obj.build_dfa()
aut_dfa = nfa2dfa_obj.dfa
nfa2dfa_obj.display_automata()
automata.display_nx_automata(aut_dfa, "dfa", "DFA")
dfa2mindfa_obj = dfa2mindfa(aut_dfa)
dfa2mindfa_obj.minimiseIt()
self.min_dfa = automata("min_dfa")
self.min_dfa = dfa2mindfa_obj.create_new_dfa()
self.min_dfa.display_automata()
automata.display_nx_automata(self.min_dfa, "min_dfa", "MINIMAL DFA")
self.show_graph()
