nl_tokens: Finds the the import path from parent node_modules .
pl_tokens: function ( baseDir , importPath ) { var parts = importPath . <mask> ( '/' ) ; var pathname = path . join ( baseDir , importPath ) ; if ( parts [ 0 ] === 'node_modules' ) { // Gets all but the first element of array (i.e. node_modules). importPath = parts . slice ( 1 ) . join ( '/' ) ; } // Returns an array of all parent node_modules directories. var dirs = findNodeModules ( { cwd : baseDir , relative : false } ) ; _ . each ( dirs , function ( dir ) { if ( fs . existsSync ( path . join ( dir , importPath ) ) ) { pathname = path . join ( dir , importPath ) ; return false ; // Exits iteration by returning false. } } ) ; return pathname ; }