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@@ -0,0 +1,16 @@
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#import <Foundation/Foundation.h>
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#if TARGET_OS_IPHONE
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#import "DDXML.h"
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#endif
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@class XMPPResultSet;
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@interface NSXMLElement (XEP_0059)
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- (BOOL)isResultSet;
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- (BOOL)hasResultSet;
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- (XMPPResultSet *)resultSet;
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@end
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@@ -0,0 +1,47 @@
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#import "NSXMLElement+XEP_0059.h"
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#import "NSXMLElement+XMPP.h"
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#import "XMPPResultSet.h"
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#if ! __has_feature(objc_arc)
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#warning This file must be compiled with ARC. Use -fobjc-arc flag (or convert project to ARC).
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#endif
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#define XMLNS_XMPP_RESULT_SET @"http://jabber.org/protocol/rsm"
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#define NAME_XMPP_RESULT_SET @"set"
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@implementation NSXMLElement (XEP_0059)
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- (BOOL)isResultSet
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{
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if([[self name] isEqualToString:NAME_XMPP_RESULT_SET] && [[self xmlns] isEqualToString:XMLNS_XMPP_RESULT_SET])
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{
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return YES;
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}
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else
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{
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return NO;
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}
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}
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- (BOOL)hasResultSet
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{
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if([self resultSet])
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{
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return YES;
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}
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else
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{
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return NO;
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}
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}
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- (XMPPResultSet *)resultSet
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{
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NSXMLElement *resultSetElement = [self elementForName:NAME_XMPP_RESULT_SET xmlns:XMLNS_XMPP_RESULT_SET];
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XMPPResultSet *resultSet = [XMPPResultSet resultSetFromElement:resultSetElement];
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return resultSet;
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}
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@end
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@@ -0,0 +1,96 @@
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#import <Foundation/Foundation.h>
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#if TARGET_OS_IPHONE
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#import "DDXML.h"
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#endif
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/**
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* The XMPPResultSet class represents an <set xmlns='http://jabber.org/protocol/rsm'> element form XEP-0059.
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* It extends NSXMLElement.
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*
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* Calling resultSet on an NSXMLElement returns an XMPPResultSet if it exists (see NSXMLElement+XEP_0059.h)
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*
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* This class exists to provide developers an easy way to add functionality to Result Set processing.
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* Simply add your own category to XMPPResultSet to extend it with your own custom methods.
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*
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* XMPPResultSet uses NSNotFound to Specify undefined integer values i.e. max,firstIndex and count.
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* XMPPResultSet uses a NSString of 0 length but not nil to supply empty elements i.e. before and after.
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*
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* Example:
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*
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* To fetch the last 10 items in a result set you need the following XML:
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*
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* <set xmlns='http://jabber.org/protocol/rsm'>
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* <max>10</max>
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* <before/>
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* </set>
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*
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* This Result Set can be created by:
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*
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* [XMPPResultSet resultSetWithMax:10 firstIndex:NSNotFound after:nil before:@""];
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**/
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@interface XMPPResultSet : NSXMLElement
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/**
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* Converts an NSXMLElement to an XMPPResultSet element in place (no memory allocations or copying)
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**/
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+ (XMPPResultSet *)resultSetFromElement:(NSXMLElement *)element;
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/**
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* Creates and returns a new autoreleased XMPPResultSet element.
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**/
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+ (XMPPResultSet *)resultSet;
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+ (XMPPResultSet *)resultSetWithMax:(NSInteger)max;
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+ (XMPPResultSet *)resultSetWithMax:(NSInteger)max
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firstIndex:(NSInteger)index;
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+ (XMPPResultSet *)resultSetWithMax:(NSInteger)max
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after:(NSString *)after;
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+ (XMPPResultSet *)resultSetWithMax:(NSInteger)max
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before:(NSString *)before;
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+ (XMPPResultSet *)resultSetWithMax:(NSInteger)max
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firstIndex:(NSInteger)firstIndex
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after:(NSString *)after
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before:(NSString *)before;
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/**
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* Creates and returns a new XMPPResultSet element.
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**/
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- (id)init;
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- (id)initWithMax:(NSInteger)max;
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- (id)initWithMax:(NSInteger)max
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firstIndex:(NSInteger)firstIndex;
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- (id)initWithMax:(NSInteger)max
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after:(NSString *)after;
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- (id)initWithMax:(NSInteger)max
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before:(NSString *)before;
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- (id)initWithMax:(NSInteger)max
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firstIndex:(NSInteger)firstIndex
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after:(NSString *)after
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before:(NSString *)before;
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- (NSInteger)max;
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- (NSInteger)firstIndex;
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- (NSString *)after;
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- (NSString *)before;
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- (NSInteger)count;
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- (NSString *)first;
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- (NSString *)last;
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@end
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@@ -0,0 +1,230 @@
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#import "XMPPResultSet.h"
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#import "NSXMLElement+XMPP.h"
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#import <objc/runtime.h>
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#if ! __has_feature(objc_arc)
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#warning This file must be compiled with ARC. Use -fobjc-arc flag (or convert project to ARC).
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#endif
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#define XMLNS_XMPP_RESULT_SET @"http://jabber.org/protocol/rsm"
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#define NAME_XMPP_RESULT_SET @"set"
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@implementation XMPPResultSet
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+ (void)initialize
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{
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// We use the object_setClass method below to dynamically change the class from a standard NSXMLElement.
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// The size of the two classes is expected to be the same.
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//
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// If a developer adds instance methods to this class, bad things happen at runtime that are very hard to debug.
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// This check is here to aid future developers who may make this mistake.
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//
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// For Fearless And Experienced Objective-C Developers:
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// It may be possible to support adding instance variables to this class if you seriously need it.
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// To do so, try realloc'ing self after altering the class, and then initialize your variables.
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size_t superSize = class_getInstanceSize([NSXMLElement class]);
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size_t ourSize = class_getInstanceSize([XMPPResultSet class]);
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if (superSize != ourSize)
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{
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NSLog(@"Adding instance variables to XMPPResultSet is not currently supported!");
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exit(15);
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}
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}
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+ (XMPPResultSet *)resultSetFromElement:(NSXMLElement *)element
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{
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object_setClass(element, [XMPPResultSet class]);
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return (XMPPResultSet *)element;
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}
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+ (XMPPResultSet *)resultSet
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{
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return [[XMPPResultSet alloc] init];
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}
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+ (XMPPResultSet *)resultSetWithMax:(NSInteger)max
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{
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return [[XMPPResultSet alloc] initWithMax:max];
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}
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+ (XMPPResultSet *)resultSetWithMax:(NSInteger)max
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firstIndex:(NSInteger)firstIndex
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{
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return [[XMPPResultSet alloc] initWithMax:max firstIndex:firstIndex];
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}
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+ (XMPPResultSet *)resultSetWithMax:(NSInteger)max
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after:(NSString *)after
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{
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return [[XMPPResultSet alloc] initWithMax:max after:after];
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}
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+ (XMPPResultSet *)resultSetWithMax:(NSInteger)max
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before:(NSString *)before
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{
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return [[XMPPResultSet alloc] initWithMax:max before:before];
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}
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+ (XMPPResultSet *)resultSetWithMax:(NSInteger)max
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firstIndex:(NSInteger)firstIndex
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after:(NSString *)after
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before:(NSString *)before
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{
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return [[XMPPResultSet alloc] initWithMax:max
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firstIndex:firstIndex
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after:after
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before:before];
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}
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- (id)init
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{
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return [self initWithMax:NSNotFound firstIndex:NSNotFound after:nil before:nil];
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}
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- (id)initWithMax:(NSInteger)max
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{
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return [self initWithMax:max firstIndex:NSNotFound after:nil before:nil];
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}
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- (id)initWithMax:(NSInteger)max
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firstIndex:(NSInteger)firstIndex
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{
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return [self initWithMax:max firstIndex:firstIndex after:nil before:nil];
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}
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- (id)initWithMax:(NSInteger)max
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after:(NSString *)after
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{
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return [self initWithMax:max firstIndex:NSNotFound after:after before:nil];
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}
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- (id)initWithMax:(NSInteger)max
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before:(NSString *)before
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{
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return [self initWithMax:max firstIndex:NSNotFound after:nil before:before];
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}
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- (id)initWithMax:(NSInteger)max
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firstIndex:(NSInteger)firstIndex
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after:(NSString *)after
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before:(NSString *)before
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{
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if ((self = [super initWithName:NAME_XMPP_RESULT_SET xmlns:XMLNS_XMPP_RESULT_SET]))
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{
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if(max != NSNotFound)
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{
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NSXMLElement *maxElement = [NSXMLElement elementWithName:@"max" stringValue:[@(max) stringValue]];
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[self addChild:maxElement];
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}
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if(firstIndex != NSNotFound)
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{
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NSXMLElement *maxElement = [NSXMLElement elementWithName:@"index" stringValue:[@(firstIndex) stringValue]];
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[self addChild:maxElement];
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}
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if(after != nil)
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{
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if([after length])
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{
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NSXMLElement *afterElement = [NSXMLElement elementWithName:@"after" stringValue:after];
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[self addChild:afterElement];
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}
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else
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{
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NSXMLElement *afterElement = [NSXMLElement elementWithName:@"after"];
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[self addChild:afterElement];
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}
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}
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if(before != nil)
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{
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if([before length])
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{
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NSXMLElement *beforeElement = [NSXMLElement elementWithName:@"before" stringValue:before];
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[self addChild:beforeElement];
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}
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else
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{
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NSXMLElement *beforeElement = [NSXMLElement elementWithName:@"before"];
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[self addChild:beforeElement];
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}
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}
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}
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return self;
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}
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- (id)initWithXMLString:(NSString *)string error:(NSError *__autoreleasing *)error
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{
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if((self = [super initWithXMLString:string error:error]))
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{
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self = [XMPPResultSet resultSetFromElement:self];
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}
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return self;
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}
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- (NSInteger)max
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{
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if([self elementForName:@"max"])
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{
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return [[[self elementForName:@"max"] stringValue] intValue];
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}else{
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return NSNotFound;
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}
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}
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- (NSInteger)firstIndex
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{
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if([[self elementForName:@"first"] attributeForName:@"index"])
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{
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return [[self elementForName:@"first"] attributeIntegerValueForName:@"index"];
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}
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else if([self elementForName:@"index"])
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{
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return [[[self elementForName:@"index"] stringValue] intValue];
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}
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else
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{
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return NSNotFound;
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}
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}
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- (NSString *)after
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{
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return [[self elementForName:@"after"] stringValue];
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}
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- (NSString *)before
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{
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return [[self elementForName:@"before"] stringValue];
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}
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- (NSInteger)count
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{
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if([self elementForName:@"count"])
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{
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return [[[self elementForName:@"count"] stringValue] intValue];
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}
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else
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{
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return NSNotFound;
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}
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}
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- (NSString *)first
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{
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return [[self elementForName:@"first"] stringValue];
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}
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- (NSString *)last
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{
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return [[self elementForName:@"last"] stringValue];
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}
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@end
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