Converting & to & in Objective-C

Question

Hi All,

I have a URL string in the following format.

http://myserver.com/_layouts/feed.aspx?xsl=4&web=%2F&page=dda3fd10-c776-4d69-8c55-2f1c74b343e2&wp=476f174a-82df-4611-a3df-e13255d97533

I want to replace & with & in the above URL. My result should be:

http://myserver.com/_layouts/feed.aspx?xsl=4&web=%2F&page=dda3fd10-c776-4d69-8c55-2f1c74b343e2&wp=476f174a-82df-4611-a3df-e13255d97533

Can someone post me the code to get this done?

Thanks

Answer 1

[urlString stringByReplacingOccurrencesOfString:@"&" withString:@"&"];

Answer 2

There is no built-in function for this in the iPhone SDK. You should file a bug that you want the functionality. In the normal Mac OS X SDK you can either load the fragment into an NSAttributedString as HTML and ask it to hand back a plain string, or use CFXMLCreateStringByUnescapingEntities().

@interface NSString (LGAdditions)
- (NSString *) stringByUnescapingEntities;
@end

@implementation NSString (LGAdditions)
- (NSString *) stringByUnescapingEntities {
  CFStringRef retvalCF = CFXMLCreateStringByUnescapingEntities(kCFAllocatorDefault, (CFAllocatorRef)self, NULL);
  return [NSMakeCollectable(retvalCF) autorelease];
}
@end

Answer 3

Check out my NSString category for HTML. Here are the methods available:

• (NSString *)stringByConvertingHTMLToPlainText;
• (NSString *)stringByDecodingHTMLEntities;
• (NSString *)stringByEncodingHTMLEntities;
• (NSString *)stringWithNewLinesAsBRs;
• (NSString *)stringByRemovingNewLinesAndWhitespace;

Answer 4

Michael's answer is right! works like a charming! Great thanks man!