Scala: XML Attribute parsing

Question

I\'m trying to parse a rss feed that looks like this for the attribute \"date\":

Answer 1

Think about using sequence comprehensions, too. They're useful for dealing with XML, particularly if you need complicated conditions.

For the simple case:

for {
  c <- rssFeed \\ "@date"
} yield c

Gives you the date attribute from everything in rssFeed.

But if you want something more complex:

val rssFeed = 
                
                  
                    
                    
                    
                  
                
              

val sep = "\n----\n"

for {
  channel <- rssFeed \ "channel"
  item <- channel \ "item"
  y <- item \ "c"
  date <- y \ "@date" if (date text).equals("AA")
} yield {
  val s = List(channel, item, y, date).mkString(sep)
  println(s)
}

Gives you:

    
                        
                          
                          
                          
                        
                      
    ----
    
                          
                          
                          
                        
    ----
    
    ----
    AA