OC秩序辞書
4220 ワード
ocには秩序辞書は存在せず、既存の秩序辞書はすべて無秩序辞書に基づいて、辞書で配列の2つの属性を加え、配列の秩序性を使用してキー値対データを組織する.コードを見てください .h .m
@interface OrderedDictionary : NSMutableDictionary
{
NSMutableDictionary *dictionary;
NSMutableArray *array;
}
//
- (void)insertObject:(id)anObject forKey:(id)aKey atIndex:(NSUInteger)anIndex;
// obj
- (id)keyAtIndex:(NSUInteger)anIndex;
//
- (NSEnumerator *)reverseKeyEnumerator;
//
- (NSEnumerator *)keyEnumerator;
//
-(void)filtrateChinese;
@end
#import "OrderedDictionary.h"
NSString *DescriptionForObject(NSObject *object, id locale, NSUInteger indent)
{
NSString *objectString;
if ([object isKindOfClass:[NSString class]])
{
objectString = [[NSString alloc]init];
}
else if ([object respondsToSelector:@selector(descriptionWithLocale:indent:)])
{
objectString = [(NSDictionary *)object descriptionWithLocale:locale indent:indent];
}
else if ([object respondsToSelector:@selector(descriptionWithLocale:)])
{
objectString = [(NSSet *)object descriptionWithLocale:locale];
}
else
{
objectString = [object description];
}
return objectString;
}
@implementation OrderedDictionary
//
- (id)init
{
return [self initWithCapacity:0];
}
//
- (id)initWithCapacity:(NSUInteger)capacity
{
self = [super init];
if (self != nil)
{
dictionary = [[NSMutableDictionary alloc] initWithCapacity:capacity];
array = [[NSMutableArray alloc] initWithCapacity:capacity];
}
return self;
}
//copy
- (id)copy
{
return [self mutableCopy];
}
//
- (void)setObject:(id)anObject forKey:(id)aKey
{
if (![dictionary objectForKey:aKey])
{
[array addObject:aKey];
}
[dictionary setObject:anObject forKey:aKey];
}
- (void)removeObjectForKey:(id)aKey
{
[dictionary removeObjectForKey:aKey];
[array removeObject:aKey];
}
- (NSUInteger)count
{
return [dictionary count];
}
- (id)objectForKey:(id)aKey
{
return [dictionary objectForKey:aKey];
}
- (NSEnumerator *)keyEnumerator
{
return [array objectEnumerator];
}
- (NSEnumerator *)reverseKeyEnumerator
{
return [array reverseObjectEnumerator];
}
- (void)insertObject:(id)anObject forKey:(id)aKey atIndex:(NSUInteger)anIndex
{
if ([dictionary objectForKey:aKey])
{
[self removeObjectForKey:aKey];
}
[array insertObject:aKey atIndex:anIndex];
[dictionary setObject:anObject forKey:aKey];
}
- (id)keyAtIndex:(NSUInteger)anIndex
{
return [array objectAtIndex:anIndex];
}
// , , 。
- (NSString *)descriptionWithLocale:(id)locale indent:(NSUInteger)level
{
NSMutableString *indentString = [NSMutableString string];
NSUInteger i, count = level;
for (i = 0; i < count; i++)
{
[indentString appendFormat:@" "];
}
NSMutableString *description = [NSMutableString string];
[description appendFormat:@"%@{
", indentString];
for (NSObject *key in self)
{
[description appendFormat:@"%@ %@ = %@;
",
indentString,
DescriptionForObject(key, locale, level),
DescriptionForObject([self objectForKey:key], locale, level)];
}
[description appendFormat:@"%@}
", indentString];
return description;
}
//
-(void)filtrateChinese
{
for (id key in self.allKeys)
{
id object=[self objectForKey:key];
if ([object isKindOfClass:[NSString class]])
{
[self setObject:(NSString *)CFBridgingRelease(CFURLCreateStringByAddingPercentEscapes(kCFAllocatorDefault,
(CFStringRef)object,
NULL,
NULL,
kCFStringEncodingUTF8)) forKey:key];
}
}
}
@end