Fixed a grammar check bug in the tokenizer.

main.py

@@ -1,27 +1,28 @@
 import token
 import tokenizer
-import expression
+#import expression
 import calc_engine
-import json
+#import jsonpickle
 
 #fileLocation = input('File Path to JSON: ') 
 #json = json.loads(open(fileLocation).read())
 
 
-userInput = input('Enter your formula: ')
-tokens = tokenizer.get_tokens_from_expression_string(userInput)
+#userInput = input('Enter your formula: ')
+tokens = tokenizer.get_tokens_from_expression_string("5000(2(2(1.08^10)-1)/0.08)")
 #with open("expression.json", "r") as f:
 #	j = json.load(f)
-#	exp = expression.Expression(json.loads(j))
+#	exp = jsonpickle.decode(f.read())
+	#exp = expression.Expression.from_json(json.loads(json.load(f)))
 #	print(exp)
-#results = calc_engine.calculate_results(tokens.copy())
-#print(results)
+results = calc_engine.calculate_results(tokens.copy())
+print(results)
 
-tokens = tokenizer.replace_variables(tokens, [23, 46, 89])
+#tokens = tokenizer.replace_variables(tokens, [23, 46, 89])
 
-for t in tokens:
-	print("%s (%s) " %(t.value, token.TokenType.get_token_type_name(t.type)), end = "")
-print()
+#for t in tokens:
+#	print("%s (%s) " %(t.value, token.TokenType.get_token_type_name(t.type)), end = "")
+#print()
 
 
 #def factors(factor_object, starting_point, variable_type)

tokenizer.py

@@ -13,7 +13,7 @@ def get_tokens_from_expression_string(expression_string):
 	for i in range(0, len(expression_string)):
 		c = expression_string[i]
 		if c == '.' or c.isdigit():
-			if tmp.count('.') == 1:
+			if c == '.' and tmp.count('.') == 1:
 				raise SyntaxError("Invalid grammar, to many periods in number. Found at position " + str (i) + ".")
 			if len(tokens) > 1:
 				lookBehind = tokens[-1]