Quick Ranges from NSNumbers

NSNumber+Ranges.m

// .h
@interface NSNumber (Ranges)

- (NSRange)to:(NSNumber *)rangeEnd;
- (BOOL)isInRange:(NSRange)range;

@end

// .m
@implementation NSNumber (Ranges)

- (NSRange)to:(NSNumber *)rangeEnd
{
    return NSMakeRange([self intValue], [rangeEnd intValue] - [self intValue]);
}

- (BOOL)isInRange:(NSRange)range
{
    return ([self intValue] >= range.location) && ([self intValue] <= (range.length + range.location));
}

@end

NSNumberRanges.m

// .h
@interface NSNumber (Ranges)

- (NSRange)to:(NSNumber *)rangeEnd;
- (BOOL)isInRange:(NSRange)range;

@end

// .m
@implementation NSNumber (Ranges)

- (NSRange)to:(NSNumber *)rangeEnd
{
    return NSMakeRange([self intValue], [rangeEnd intValue] - [self intValue]);
}

- (BOOL)isInRange:(NSRange)range
{
    return ([self intValue] >= range.location) && ([self intValue] <= (range.length + range.location));
}

@end

// use
NSLog(@"%@", [@"pcperini" substringWithRange: [@2 to: @7]]);
// logs 'perini`