code: private ResourceReference parseInterWikiLinks(StringBuilder content)
      {
          ResourceReference result = null;
          String interWikiAlias = parseElementAfterString(content, SEPARATOR_INTERWIKI);
          if (interWikiAlias != null) {
              InterWikiResourceReference link = new InterWikiResourceReference(removeEscapes(content.toString()));
              link.setInterWikiAlias(removeEscapes(interWikiAlias));
              result = link;
          }
          return result;
      }
docs: Check if the passed link references is an interwiki link reference.
  
  @param content the original content to parse
  @return the parsed Link object or null if the passed reference is not an interwiki link reference