解析XML时如何防止将\ n附加到NSmutable字符串? [英] How to prevent appending \n to NSmutable string while parsing xml?

问题描述

此问题是此扩展问题.

现在我正在使用以下代码来解析xml数据，

Now I'm using the below code for parsing xml data,

    -(void) parser:(NSXMLParser *)parser didStartElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName attributes:(NSDictionary *)attributeDict
{
    rValue = [[NSMutableString alloc]init];
    isTag = FALSE;
    if ([elementName caseInsensitiveCompare:@"BusinessName"] == NSOrderedSame)
        isTag=YES;

}


-(void) parser:(NSXMLParser *)parser foundCharacters:(NSString *)strin{
if (isTag) 
        [rValue appendString:strin];
}

-(void) parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName
{

    if([elementName caseInsensitiveCompare:@"BusinessName"] == NSOrderedSame)
        [myarray addObject:rValue];
}

-(void) parserDidEndDocument:(NSXMLParser *)parser
{
    NSLog(@"%@",myarray);
}

rValue是NSMutablestring;

rValue is a NSMutablestring;

在打印阵列后，它看起来像这样，

After printing my array, it looks like this,

(
"Book Store\n    ",
"Birch river grill\n    ",
"PIC\n    ",
"Drink Juice\n    ",
"Cofee Cafee\n    ",
"Diag Block\n    ",
"Delici Store\n    ",
"Rubbit Rabbit\n\n\n    ",
"Spoon Fork\n    ",
"Travel Sea\n\n    ",
"Water Melocious\n\n\n    ",
"Lazee Fish\n\n\n\n    ",
"Allow\n    ",
"Enjoy Traveling\n    ",
"Grwing Three\n    ",
"Diz Cow\n\n    ",
"Wheeler Marine\n\n\n    "
)

如何防止将\n添加到NSMutable字符串? 即，我需要检查字符串是否具有\n?

How can I prevent adding \ns to NSMutable string? ie, I need to check the string has \n or not?

有时这些\ n似乎是NSMutableString的前缀，如有任何建议，我们将不胜感激.

Sometimes these \n are appearing prefix to the NSMutableString, Any suggestions would be appreciated.

推荐答案

尝试更改此方法:

 -(void) parser:(NSXMLParser *)parser didEndElement:(NSString *)elementName namespaceURI:(NSString *)namespaceURI qualifiedName:(NSString *)qName

 if([elementName caseInsensitiveCompare:@"BusinessName"] == NSOrderedSame)
  [myarray addObject:[rValue stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]]];

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