NSString empty checks

gistfile1.m

@interface NSString (FSQFoundation)

+ (BOOL) isEmpty:(NSString *)string;
+ (BOOL) isNotEmpty:(NSString *)string;

@end

@implementation NSString (FSQFoundation)

+ (BOOL) isEmpty:(NSString *)string {
  return string == nil || [string stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]].length < 1;
}

+ (BOOL) isNotEmpty:(NSString *)string {
	return NO == [self isEmpty:string];
}

@end