nl_tokens: get a specific revision
pl_tokens: function ( identifier , revisionIdentifier , target , cb ) { logger . <mask> ( 'get revision: ' + identifier + ', ' + revisionIdentifier ) ; var systemId = _sr . findSystem ( identifier ) ; if ( ! systemId ) { logger . error ( ERR_NOSYSID ) ; return cb ( new Error ( ERR_NOSYSID ) ) ; } fetchTarget ( systemId , target , revisionIdentifier , function ( err , target ) { if ( err ) { return cb ( err ) ; } _sr . findRevision ( systemId , revisionIdentifier , function ( err , revisionId ) { if ( err ) { return cb ( err ) ; } _sr . getRevision ( systemId , revisionId , target , cb ) ; } ) ; } ) ; }