nl_tokens: Repeat the given string the specified number of times .
pl_tokens: function repeat ( str , num ) { if ( typeof str !== 'string' ) { throw new TypeError ( 'repeat-string expects a string.' ) ; } if ( num === 1 ) return str ; if ( num === 2 ) return str + str ; var <mask> = str . length * num ; if ( cache !== str || typeof cache === 'undefined' ) { cache = str ; res = '' ; } while ( max > res . length && num > 0 ) { if ( num & 1 ) { res += str ; } num >>= 1 ; if ( ! num ) break ; str += str ; } return res . substr ( 0 , max ) ; }