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//
// MGTwitterStatusesYAJLParser.m
// MGTwitterEngine
//
// Created by Matt Gemmell on 11/02/2008.
// Copyright 2008 Instinctive Code.
//
#import "MGTwitterStatusesYAJLParser.h"
#define DEBUG_PARSING 0
@implementation MGTwitterStatusesYAJLParser
- (void)addValue:(id)value forKey:(NSString *)key
{
//if for some reason there are no dictionaries, exit here
if (!_dictionaries || [_dictionaries count] == 0)
{
return;
}
NSMutableDictionary *lastDictionary = [_dictionaries lastObject];
if([[lastDictionary objectForKey:key] isKindOfClass:[NSArray class]]){
NSMutableArray *array = [lastDictionary objectForKey:key];
[array addObject:value];
}else{
[lastDictionary setObject:value forKey:key];
}
#if DEBUG_PARSING
NSLog(@"parsed item: %@ = %@ (%@)", key, value, NSStringFromClass([value class]));
#endif
}
- (void)startDictionaryWithKey:(NSString *)key
{
#if DEBUG_PARSING
NSLog(@"status: dictionary start = %@", key);
#endif
if (!_dictionaries)
{
_dictionaries = [[NSMutableArray alloc] init];
}
if (!_dictionaryKeys)
{
_dictionaryKeys = [[NSMutableArray alloc] init];
}
//add a new dictionary to the array
NSMutableDictionary *newDictionary = [[NSMutableDictionary alloc] initWithCapacity:0];
[_dictionaries addObject:newDictionary];
[newDictionary release];
//add a key for the above dictionary to the array
[_dictionaryKeys addObject:(key) ? key : @""];
}
- (void)endDictionary
{
if (_dictionaries && _dictionaryKeys && [_dictionaries count] > 0 && [_dictionaryKeys count] > 0)
{
//is this the root dictionary?
if ([_dictionaries count] == 1)
{
//one dictionary left, so it must be the root
NSMutableDictionary *rootDictionary = [_dictionaries lastObject];
//set the request type in the root dictionary
[rootDictionary setObject:[NSNumber numberWithInt:requestType] forKey:TWITTER_SOURCE_REQUEST_TYPE];
//send the root dictionary to the super class
[self _parsedObject:rootDictionary];
[parsedObjects addObject:rootDictionary];
}
else
{
//child dictionary found
//add the child dictionary to its parent dictionary
NSMutableDictionary *parentDictionary = [_dictionaries objectAtIndex:[_dictionaries count] - 2];
[parentDictionary setObject:[_dictionaries lastObject] forKey:[_dictionaryKeys lastObject]];
}
//remove the last dictionary since it has been joined with its parent (or was the root dictionary)
//also remove the corresponding key
[_dictionaries removeLastObject];
[_dictionaryKeys removeLastObject];
}
#if DEBUG_PARSING
NSLog(@"status: dictionary end");
#endif
}
- (void)startArrayWithKey:(NSString *)key
{
arrayDepth++;
NSMutableArray *newArray = [NSMutableArray array];
[self addValue:newArray forKey:key];
#if DEBUG_PARSING
NSLog(@"status: array start = %@", key);
#endif
}
- (void)endArray
{
#if DEBUG_PARSING
NSLog(@"status: array end");
#endif
arrayDepth--;
[self clearCurrentKey];
}
- (void)dealloc
{
[_dictionaries release];
[_dictionaryKeys release];
[super dealloc];
}
@end
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