Parse HTML iPhone

Question

I have a .html file on a server, which I need to parse info from. It´s nothing huge it´s just

 some text 
<         


        

Answer 1

You can parse it with libxml, here is a sample I wrote it for you:

#import 
#import 
#import 
#import 

@interface NSString(HTMLParser)
- (NSArray *)resultWithXPath:(NSString *)xpath;
@end

@implementation NSString(HTMLParser)

- (NSArray *)resultWithXPath:(NSString *)xpath
{
  htmlDocPtr doc = htmlParseDoc((xmlChar *)[[self dataUsingEncoding:NSUTF8StringEncoding] bytes], "UTF-8");
  xmlXPathContextPtr context = xmlXPathNewContext(doc);
  xmlXPathObjectPtr xpathobj = xmlXPathEvalExpression(BAD_CAST [xpath UTF8String], context);
  xmlNodeSetPtr nodeset = xpathobj->nodesetval;
  if (xmlXPathNodeSetIsEmpty(nodeset))
    return nil;

  NSMutableArray *result = [[NSMutableArray alloc] initWithCapacity:nodeset->nodeNr];

  for (int i=0; inodeNr; i++){
    xmlNodePtr node = nodeset->nodeTab[i];
    [result addObject:[NSString stringWithCString:(char *)xmlNodeGetContent(node) encoding:NSUTF8StringEncoding]];
  }

  xmlXPathFreeObject(xpathobj);
  xmlXPathFreeContext(context);
  xmlFreeDoc(doc);

  return [result autorelease];
}

@end

int main (int argc, const char * argv[])
{
  NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];

  NSString *html = @"\
  \
  
 some text 
\
  
 some other text 
\
  \
  ";

  NSArray *result = [html resultWithXPath:@"//p"];
  NSLog(@"result: %@", result);
  [pool release];

  return 0;
}