lib/parser.js
function parseLanguage (node, nodeType, feedType) {
  return utils.get(node.language) || utils.getAttr(node, 'xml:lang') || utils.get(node['dc:language']);
}
function parseLanguage (node, nodeType, feedType) {
  return utils.get(node.language) || utils.getAttr(node, 'xml:lang') || utils.get(node['dc:language']);
}
function parseLanguage ( node , nodeType , feedType ) { return utils . get ( node . language ) || utils . getAttr ( node , 'xml:lang' ) || utils . get ( node [ 'dc:language' ] ) ; }
Parses the language for meta nodes

- language
- highest priority for RSS feeds
- commonly found in RSS feeds and rarely in ATOM feeds if ever
- xml:lang
- highest priority for ATOM feeds
- more commonly found in ATOM feeds and rarely found in RSS feeds if ever
- dc:language
- next highest priority for RSS feeds
- more commonly found in RSS feeds and rarely found in ATOM feeds if ever

@param node
@param nodeType
@param feedType
@returns {*}
Parses the language for meta nodes