Redesign of the Evaluation System

MathPad/MPFunction+MPParsedFactor.m

@@ -0,0 +1,30 @@
+//
+//  MPFunction+MPParsedFactor.m
+//  MathPad
+//
+//  Created by Kim Wittenburg on 13.09.14.
+//  Copyright (c) 2014 Kim Wittenburg. All rights reserved.
+//
+
+#import "MPFunction+MPParsedFactor.h"
+
+@implementation MPFunction (MPParsedFactor)
+
+- (instancetype)initWithRange:(NSRange)range
+                     inString:(NSString *)string
+{
+    return [self init];
+}
+
+- (BOOL)exists
+{
+    return YES;
+}
+
+- (NSRange)range
+{
+    NSUInteger selfIndex = [self.parent indexOfElement:self];
+    return NSMakeRange([self.parent locationOfElementAtIndex:selfIndex], 1);
+}
+
+@end