Create literal helper class

smnp/newast/node/literal.py

@@ -0,0 +1,18 @@
+from smnp.newast.node.expression import ExpressionNode
+from smnp.newast.parser import Parser
+
+
+class LiteralNode(ExpressionNode):
+
+    @classmethod
+    def _getTokenType(cls):
+        pass
+
+    @classmethod
+    def _processValue(cls, value):
+        return value
+
+    @classmethod
+    def _literalParser(cls):
+        createNode = lambda v, pos: cls.withValue(cls._processValue(v), pos)
+        return Parser.terminalParser(cls._getTokenType(), createNode)