[* JSON*]

NSArray+mxcl.h

@@ -13,6 +13,10 @@
 // Do not use this if there a chance that all values are equal
 // or if most of the values are equal.
 - (id)shuffledArray;
+
+- (NSData *)JSONData;
+- (NSString *)JSONString;
+
 @end
 
 @interface NSMutableArray (mxcl)

NSArray+mxcl.m

@@ -57,6 +57,15 @@ - (id)shuffledArray {
         }
     }
 }
+
+- (id)JSONData {
+    return [NSJSONSerialization dataWithJSONObject:self options:kNilOptions error:nil];
+}
+
+- (id)JSONString {
+    return [[NSString alloc] initWithData:[self JSONData] encoding:NSUTF8StringEncoding];
+}
+
 @end
 
 

NSDictionary+mxcl.h

@@ -3,6 +3,9 @@
 @interface NSDictionary (mxcl)
 
 // returns nil if not a string or if string length is zero after trimming whitespace from both ends
-- (id)massagedStringForKey:(id)key;
+- (NSString *)massagedStringForKey:(id)key;
+
+- (NSData *)JSONData;
+- (NSString *)JSONString;
 
 @end

NSDictionary+mxcl.m

@@ -7,9 +7,15 @@ - (id)massagedStringForKey:(id)key {
 	if (![s isKindOfClass:[NSString class]])
 		return nil;
 	s = [s stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];
-	if ([s length] == 0)
-		return nil;
-	return s;
+	return s.length ? s : nil;
+}
+
+- (id)JSONData {
+    return [NSJSONSerialization dataWithJSONObject:self options:kNilOptions error:nil];
+}
+
+- (id)JSONString {
+    return [[NSString alloc] initWithData:[self JSONData] encoding:NSUTF8StringEncoding];
 }
 
 @end

NSObject+mxcl.h

@@ -1,5 +1,10 @@
 #import <Foundation/Foundation.h>
 
 @interface NSObject (mxcl)
+
 - (void)dumpSelectors;
+
++ (id)objectWithJSONData:(NSData *)json;
++ (id)objectWithJSONString:(NSString *)json;
+
 @end

NSObject+mxcl.m

@@ -1,11 +1,22 @@
 #import "NSObject+mxcl.h"
+#import <objc/runtime.h>
 
 @implementation NSObject (mxcl)
+
 - (void)dumpSelectors {
     unsigned n = 0;
     Method *methods = class_copyMethodList([self class], &n);
     for (int i = 0; i < n; ++i)
         NSLog(@"%@", NSStringFromSelector(method_getName(methods[i])));
     free(methods);
 }
+
++ (id)objectWithJSONData:(NSData *)json {
+    return [NSJSONSerialization JSONObjectWithData:json options:kNilOptions error:nil];
+}
+
++ (id)objectWithJSONString:(NSString *)json {
+    return [NSObject objectWithJSONData:[json dataUsingEncoding:NSUTF8StringEncoding]];
+}
+
 @end