我正在使用 RaptureXML 解析一个 XML 文件，该文件描述了不同的过滤器（具有相当复杂的结构），然后我将其创建为 Obj-C 对象。一切正常！
但是，Instruments 在 libxml2.2.dylib 中检测到多个泄漏（请参见屏幕截图），我无法在网上找到任何可以帮助我解决此问题的内容。
这是泄漏仪器屏幕截图的链接（我还不能将其发布到软...）
http://imageshack.us/photo/my-images/850/bildschirmfoto20120507ud.png/
这是我用来解析 xml 文件的代码：
RXMLElement *rootXML = [RXMLElement elementFromXMLData:xmlDataFile];
FilterLogic_Management *filterManager = [[FilterLogic_Management alloc] init];
NSString *queryPath = [NSString stringWithFormat:@"//%@[@id=%i]/filterSettings/fqFilter", FilterTypeAsString, FilterNum];
//WHAT AM I DOING? Consider two filter types: Distance and Price. Each filter type consists of different thresholds (e.g., <8 $; 8 - 15 $; > 15 $). All of these values are in an XML file which I need to parse and translate into my "real" filters that I use in the App.
//Step 1: Iterate over all FilterTypes to find the entry in the XML file that describes the currently selected FilterType and its FilterNum
[rootXML queryPath usingBlock:^(RXMLElement *filterElement) {
NSMutableArray *currentThresholds = [[NSMutableArray alloc] init];
float currentWeight = [filterElement attribute:@"weightFactor"].floatValue; //e.g., 1.0
NSString *currentMarkerUnit = [filterElement attribute:@"markerUnit"]; //e.g., $ or €
NSString *currentFilterType = [filterElement attribute:@"groupType"]; //e.g., "Distance" or "Price"
//Step 2: Iterate over all Filters for current FilterType <- a FilterType consists of an array of Filters...
[filterElement iterate:@"filter" usingBlock: ^(RXMLElement *filter) {
NSString *filterType = [filter attribute:@"filterType"];
if(filterType != LogicalConjunction){
//Step 3-a: Create threshold with more than one threshold
float threshold = [filter attribute:@"threshold"].floatValue;
FilterLogic_FilterThreshold *newThreshold = [FilterLogic_FilterThreshold FilterThresholdMakeWithOneThreshold:threshold FilterWrapperType:filterTypeAsEnum MarkerUnit:currentMarkerUnit IsInitiallyActive:isInitiallyActive];
[currentThresholds addObject:newThreshold];
}else{
//Step 3-b: Create threshold with multiple thresholds
NSLog(@"Creating filter with multiple thresholds");
FilterLogic_FilterThreshold *logicalThreshold = [FilterLogic_FilterThreshold FilterThresholdMakeLogicalThreshold:filterTypeAsEnum MarkerUnit:currentMarkerUnit IsInitiallyActive:isInitiallyActive];
NSMutableArray *subFilterThresholds = [[NSMutableArray alloc] init];
[filter iterate:@"filter" usingBlock: ^(RXMLElement *subFilter) {
//Step-3b-x Iterate over sub-thresholds
float threshold = [subFilter attribute:@"threshold"].floatValue;
FilterLogic_FilterThreshold *subFilterThreshold = [FilterLogic_FilterThreshold FilterThresholdMakeWithOneThreshold:threshold];
[subFilterThresholds addObject:subFilterThreshold];
}];
if([subFilterThresholds count]>1)
{
FilterLogic_FilterThreshold *newThreshold = [FilterLogic_FilterThreshold FilterThresholdMakeFromLowerFilterThreshold:[subFilterThresholds objectAtIndex:0] UpperFilterThreshold:[subFilterThresholds objectAtIndex:1] LogicalFilterThreshold:logicalThreshold];
[currentThresholds addObject:newThreshold];
}
}
}];
FilterLogic_Filter *newFilter = [[FilterLogic_Filter alloc] initFilterWithType:FilterTypeAsEnum ArrayOfFilterLogic_FilterThresholds:currentThresholds Weight:currentWeight InitiallyActive:YES];
[filterManager registerFilterWrapper:newFilter];
}];
//thought that these commands might help... it seems they don't. Probably misusing them!
xmlCleanupMemory();
xmlCleanupParser();
//if([filterManager countOfFilters]>0){
NSLog(@"Filter parsing done!");
return filterManager;
非常感谢您的任何帮助/建议！