Moved node classes into separate compilation unit; File extension change

6 files changed, 141 insertions, 132 deletions

diff --git a/src/nodes.cc b/src/nodes.cc
new file mode 100644
index 0000000..70b9e50
--- /dev/null
+++ b/src/nodes.cc
@@ -0,0 +1,77 @@
+#include "nodes.h"
+#include "exceptions.h"
+
+#include <cmath>
+#include <sstream>
+#include <limits>
+
+namespace SimpleParser {
+
+OperandNode::OperandNode(double val) {
+	this->value_ = val;
+}
+
+double OperandNode::solve() {
+	return this->value_;
+}
+
+NodeType OperandNode::getType() {
+	return OPERAND_NODE;
+}
+
+std::string OperandNode::print() {
+	std::stringstream convertStream;
+	convertStream.precision(std::numeric_limits<double>::digits10);
+
+	convertStream << this->value_;
+
+	return convertStream.str();
+}
+
+OperatorNode::OperatorNode(char op) {
+	this->function_ = op;
+}
+
+double OperatorNode::solve() {
+	switch ( this->function_ ) {
+		case '*': {
+			return this->leftChild->solve() * this->rightChild->solve();
+		}
+		case '/': {
+			double rightChild = this->rightChild->solve();
+			
+			if ( rightChild != 0 ) {
+				return this->leftChild->solve() / rightChild;
+			}
+			else {
+				throw divide_exception();
+			}
+		}
+		case '+': {
+			return this->leftChild->solve() + this->rightChild->solve();
+		}
+		case '-': {
+			return this->leftChild->solve() - this->rightChild->solve();
+		}
+		case '^': {
+			return std::pow( this->leftChild->solve(), this->rightChild->solve() );
+		}
+		default: {
+			throw operator_exception();
+		}
+	}
+}
+
+NodeType OperatorNode::getType() {
+	return OPERATOR_NODE;
+}
+
+std::string OperatorNode::print() {
+	return std::string(1, this->function_);
+}
+
+char OperatorNode::getFunction() {
+	return this->function_;
+}
+
+}
diff --git a/src/nodes.h b/src/nodes.h
new file mode 100644
index 0000000..3a99474
--- /dev/null
+++ b/src/nodes.h
@@ -0,0 +1,53 @@
+#ifndef PARSER_SRC_NODES_H_
+#define PARSER_SRC_NODES_H_
+
+#include <string>
+
+namespace SimpleParser {
+
+enum NodeType {
+	OPERAND_NODE,
+	OPERATOR_NODE,
+};
+
+class Node {
+	public:
+		virtual ~Node() {};
+
+		virtual double solve()      = 0;
+		virtual NodeType getType()  = 0;
+		virtual std::string print() = 0;
+		
+		Node* leftChild;
+		Node* rightChild;
+};
+
+class OperatorNode: public Node {
+	public:
+		explicit OperatorNode(char);
+
+		virtual double solve();
+		virtual NodeType getType();
+		virtual std::string print();
+
+		char getFunction();
+
+	private:
+		char function_;
+};
+
+class OperandNode: public Node {
+	public:
+		explicit OperandNode(double);
+
+		virtual double solve();
+		virtual NodeType getType();
+		virtual std::string print();
+
+	private:
+		double value_;
+};
+
+}
+
+#endif  // PARSER_SRC_NODES_H_
diff --git a/src/parser.cpp b/src/parser.cc
index 3aaf7e2..0f05790 100644
--- a/src/parser.cpp
+++ b/src/parser.cc
@@ -1,4 +1,5 @@
 #include "parser.h"
+#include "exceptions.h"
 
 #include <sstream>
 
diff --git a/src/parser.h b/src/parser.h
index 12d745a..b943ebe 100644
--- a/src/parser.h
+++ b/src/parser.h
@@ -1,9 +1,8 @@
-#ifndef PARSER_PARSER_H_
-#define PARSER_PARSER_H_
+#ifndef PARSER_SRC_PARSER_H_
+#define PARSER_SRC_PARSER_H_
 
 #include <vector>
 #include <stack>
-#include <exception>
 
 #include "tree.h"
 
@@ -19,18 +18,6 @@ class Parser {
 		Node* buildTree(Tree*, std::string);
 };
 
-class parenthese_exception: public std::exception {
-	virtual const char* what() const throw() {
-		return "Invalid parenthesized expression - check your input term.";
-	}
-};
-
-class operator_exception: public std::exception {
-	virtual const char* what() const throw() {
-		return "Unexpected operator placement - check your input term.";
-	}
-};
-
 }
 
-#endif  // PARSER_PARSER_H_
+#endif  // PARSER_SRC_PARSER_H_
diff --git a/src/tree.cpp b/src/tree.cc
index c8f0aac..675009e 100644
--- a/src/tree.cpp
+++ b/src/tree.cc
@@ -1,69 +1,11 @@
 #include "tree.h"
+#include "exceptions.h"
 
+#include <sstream>
 #include <limits>
 
 namespace SimpleParser {
 
-OperandNode::OperandNode(double val) {
-	this->value_ = val;
-}
-
-double OperandNode::solve() {
-	return this->value_;
-}
-
-NodeType OperandNode::getType() {
-	return OPERAND_NODE;
-}
-
-std::string OperandNode::print() {
-	std::stringstream convertStream;
-	convertStream.precision(std::numeric_limits<double>::digits10);
-
-	convertStream << this->value_;
-
-	return convertStream.str();
-}
-
-OperatorNode::OperatorNode(char op) {
-	this->function_ = op;
-}
-
-double OperatorNode::solve() {
-	switch ( this->function_ ) {
-		case '*':
-			return this->leftChild->solve() * this->rightChild->solve();
-		case '/': {
-			double rightChild = this->rightChild->solve();
-			
-			if ( rightChild != 0 ) {
-				return this->leftChild->solve() / rightChild;
-			}
-			else {
-				throw divide_exception();
-			}
-		}
-		case '+':
-			return this->leftChild->solve() + this->rightChild->solve();
-		case '-':
-			return this->leftChild->solve() - this->rightChild->solve();
-		case '^':
-			return std::pow( this->leftChild->solve(), this->rightChild->solve() );
-	}
-}
-
-NodeType OperatorNode::getType() {
-	return OPERATOR_NODE;
-}
-
-std::string OperatorNode::print() {
-	return std::string(1, this->function_);
-}
-
-char OperatorNode::getFunction() {
-	return this->function_;
-}
-
 void Tree::setRoot(Node* root) {
 	this->root_node_ = root;
 }
diff --git a/src/tree.h b/src/tree.h
index 4177098..da611c7 100644
--- a/src/tree.h
+++ b/src/tree.h
@@ -1,57 +1,13 @@
-#ifndef PARSER_NODE_H_
-#define PARSER_NODE_H_
+#ifndef PARSER_SRC_NODE_H_
+#define PARSER_SRC_NODE_H_
 
 #include <vector>
 #include <string>
-#include <sstream>
 #include <memory>
-#include <cmath>
 
-namespace SimpleParser {
-
-enum NodeType {
-	OPERAND_NODE,
-	OPERATOR_NODE,
-};
-
-class Node {
-	public:
-		virtual ~Node() {};
-
-		virtual double solve()      = 0;
-		virtual NodeType getType()  = 0;
-		virtual std::string print() = 0;
-		
-		Node* leftChild;
-		Node* rightChild;
-};
-
-class OperatorNode: public Node {
-	public:
-		explicit OperatorNode(char);
+#include "nodes.h"
 
-		virtual double solve();
-		virtual NodeType getType();
-		virtual std::string print();
-
-		char getFunction();
-
-	private:
-		char function_;
-};
-
-
-class OperandNode: public Node {
-	public:
-		explicit OperandNode(double);
-
-		virtual double solve();
-		virtual NodeType getType();
-		virtual std::string print();
-
-	private:
-		double value_;
-};
+namespace SimpleParser {
 
 class Tree {
 	public:
@@ -68,13 +24,6 @@ class Tree {
 		std::vector<std::unique_ptr<Node>> node_collection_;
 };
 
-class divide_exception: public std::exception {
-	virtual const char* what() const throw()
-	{
-		return "A divison through zero had to be prevented by the parser - check your input term.";
-	}
-};
-
 }
 
-#endif  // PARSER_NODE_H_
+#endif  // PARSER_SRC_NODE_H_