Code restructuring of tree and parsing logic

* Enabled tree to generate itself
** Main work is now done during tree construction
* Moved lexer and getPriority utility functions into separate compilation unit

1 files changed, 7 insertions, 5 deletions

diff --git a/src/tree.h b/src/tree.h
index da611c7..5beec87 100644
--- a/src/tree.h
+++ b/src/tree.h
@@ -11,17 +11,19 @@ namespace SimpleParser {
 
 class Tree {
 	public:
-		void setRoot(Node*);
+		Tree(std::string);
+
 		double solve();
+		std::string print();
 
+	private:
 		Node* addOperand(Node**, double);
 		Node* addOperator(Node**, char);
+		Node* buildTree(std::string);
 
-		std::string print(std::string);
-
-	private:
-		Node* root_node_;
 		std::vector<std::unique_ptr<Node>> node_collection_;
+		Node* root_node_;
+		std::string term_;
 };
 
 }