Create new parser (works for lists so far)

smnp/ast/parsers/string.py

@@ -4,7 +4,7 @@ from smnp.token.type import TokenType
 
 # string -> STRING
 def parseString(input, parent):
-    if input.current().type == TokenType.STRING:
+    if input.isCurrent(TokenType.STRING):
         string = StringLiteralNode(input.current().value[1:len(input.current().value) - 1], parent, input.current().pos)
         input.ahead()