nl_tokens: Used by Array#at and String#at
pl_tokens: function entryAtIndex ( arr , args , str ) { var result = [ ] , length = arr . length , loop = args [ args . length - 1 ] !== false , r ; multiArgs ( args , function ( index ) { if ( isBoolean ( index ) ) return false ; if ( loop ) { index = index % length ; if ( index < 0 ) index = length + index ; } r = str ? arr . charAt ( index ) || '' : arr [ index ] ; result . push ( r ) ; } ) ; return result . length < 2 ? result [ 0 ] : <mask> ; }