Moved some code in the interpreter

wk2/Java/src/jrr1g18/bb/Interpreter.java

@@ -111,27 +111,29 @@ public class Interpreter {
 			// Run statement
 			int stmt_len = stmt_end-stmt_begin;
 			Token currentToken = tokenHistory.get(stmt_begin);
+			int setVarTo;
 			switch (currentToken.getType()) {
 			case CLEAR:
+			case INCR:
+			case DECR:
 				if(stmt_len==3 && tokenHistory.get(stmt_begin+1).getType()==TokenType.IDENTIFIER){
 					ValueToken token = (ValueToken) tokenHistory.get(stmt_begin+1);
-					if(m_variables.containsKey(token.getValue())) {
-						m_variables.replace(token.getValue(), 0);
-					} else {
-						m_variables.put(token.getValue(), 0);
-					}
-				} else {
-					throw new Exception("Nonsense statement.");
-				}
+					switch (currentToken.getType()) {
+					case CLEAR:
+						setVarTo=0;
 						break;
 					case INCR:
-				if(stmt_len==3 && tokenHistory.get(stmt_begin+1).getType()==TokenType.IDENTIFIER){
-					ValueToken token = (ValueToken) tokenHistory.get(stmt_begin+1);
+						setVarTo=m_variables.get(token.getValue())+1;
+						break;
+					case DECR:
+						setVarTo=m_variables.get(token.getValue())-1;
+					default:
+						throw new Exception("How did you even get here?");
+					}
 					if(m_variables.containsKey(token.getValue())) {
-						m_variables.replace(token.getValue(),
-								m_variables.get(token.getValue())+1);
+						m_variables.replace(token.getValue(), 0);
 					} else {
-						throw new Exception("Undefined variable.");
+						m_variables.put(token.getValue(), 0);
 					}
 				} else {
 					throw new Exception("Nonsense statement.");