Is this legal C? Wouldn't you need some sort of concatenation operator
between each string?

   This would be legal Java except for the fact that "<myKey" is not a
legal identifier. If you rename it "myKey", it should work, assuming myKey
can be assigned a string.

   However, maybe I'm completely misunderstanding you, because the subject
of this post talks about *reading* XML, but you seem be *writing* strings.

   - Oliver

I think in XML \n is treated as if it were space. At least that is how
its relatives work.  That still does not give you a way of breaking up
a long string without embedded spaces.

One practical way of handling the situation would be on parsing the
file to compact the strings to get to get rid of junk whitespace
introduced through transport with XML.

/**
    * Remove all spaces from a String. see also condense .
    *
    * @param s
    *        String to strip of blanks.
    * @return String with all blanks, lead/trail/embedded removed.
    */
   public static String squish ( String s )
       {
       if ( s == null )
           {
           return null;
           }
       s = s.trim();
       if ( s.indexOf( ' ' ) < 0 )
           {
           return s;
           }
       int len = s.length();
   
       StringBuilder b = new StringBuilder( len - 1 );
       for ( int i = 0; i < len; i++ )
           {
           char c = s.charAt( i );
           if ( c != ' ' )
               {
               b.append( c );
               }
           } // end for
       return b.toString();
       } // end squish