Add regex_to_regex.py

regex_to_regex.py

@@ -0,0 +1,15 @@
+from regex import lit, concat, bar, star
+from regex_to_nfa import to_nfa
+from nfa_to_regex import to_regex
+
+def main():
+	regex = concat(bar(lit('foo'), lit('bar')), bar(lit('baz'), lit('qux')))
+	print(regex)
+
+	nfa = to_nfa(regex)
+	regex_prime = to_regex(nfa)
+
+	print(regex_prime)
+
+if __name__ == '__main__':
+	main()