iOS How to convert/decode html entities

[pashik]

Hello.

i parse xml using NSXMLParser.
But i get xml encoded strings looks like

<![CDATA[We & #8217;ve been ....]]>

(i inserted space between & #8217; otherwise it is converted to correct symbol here)

and text extracted from this looks like

We’ve been ....

instead of We&'ve been ....

How i can avoid/remove/convert all such html encoded entities?

thanx for tip.

Here is code i use

NSData *dat = [NSData dataWithContentsOfURL:[NSURL URLWithString:@"someurl"]];
		
NSString* data = [[[NSString alloc] initWithData:dat encoding:NSUTF8StringEncoding] autorelease];
		
XMLParser* parser = [[XMLParser alloc] init];
[parser parseXMLData: data];
NSData* ndata = [data dataUsingEncoding: NSUTF8StringEncoding];
NSXMLParser *parser = [[NSXMLParser alloc] initWithData:ndata];

 

[robbieduncan]

NSString has methods to both encode and decode HTML entities. Look at the NSString documentation.

 

[pashik]

NSString has methods to both encode and decode HTML entities. Look at the NSString documentation.

There are only encoding parameter NSStringEncoding to work with string.
can u tell what is method/fucntion for decoding html entitites?

 

[robbieduncan]

Did you even look at the NSString documentation as I suggested. The ability to read and understand the documentation is a key programming skill, and one that you appear to be lacking.

Anyway the method I was referring to is this one.

 

[pashik]

Did you even look at the NSString documentation as I suggested. The ability to read and understand the documentation is a key programming skill, and one that you appear to be lacking.

Anyway the method I was referring to is this one.

Its strange that i really looked at it and what i see there: just string encoding parameters and CFURLCreateStringByReplacingPercentEscapes

But anyway - thanx for link

 

[xsmasher]

Did you even look at the NSString documentation as I suggested. The ability to read and understand the documentation is a key programming skill, and one that you appear to be lacking.

Anyway the method I was referring to is this one.

That is for URL encoding/decoding, not HTML entity encoding/decoding.

Here's HerbertHansen's solution, from the apple boards:
http://discussions.apple.com/message.jspa?messageID=8064367#8064367

@implementation MREntitiesConverter
@synthesize resultString;
- (id)init
{
	if([super init]) {
		resultString = [[NSMutableString alloc] init];
	}
	return self;
}
- (void)parser:(NSXMLParser *)parser foundCharacters:(NSString *)s {
		[self.resultString appendString:s];
}
- (NSString*)convertEntiesInString:(NSString*)s {
	if(s == nil) {
		NSLog(@"ERROR : Parameter string is nil");
	}
	NSString* xmlStr = [NSString stringWithFormat:@"<d>%@</d>", s];
	NSData *data = [xmlStr dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES];
	NSXMLParser* xmlParse = [[NSXMLParser alloc] initWithData:data];
	[xmlParse setDelegate:self];
	[xmlParse parse];
	NSString* returnStr = [[NSString alloc] initWithFormat:@"%@",resultString];
	return returnStr;
}
- (void)dealloc {
	[resultString release];
	[super dealloc];
}
@end