nl_tokens: Computes the frequencies for each item in all of arguments .
pl_tokens: function histogram ( ) { var histogram = { } ; libs . object . every ( arguments , function ( o ) { if ( typeof o === 'boolean' ) { if ( ! histogram [ o ] ) histogram [ o ] = 1 ; else histogram [ o ] ++ ; } else if ( typeof o === 'function' ) { if ( ! histogram [ 'function' ] ) histogram [ 'function' ] = 1 ; else histogram [ o ] ++ ; } else { libs . object . every ( o , function ( val ) { switch ( <mask> ) { case typeof val === 'function' : case typeof val === 'undefined' : val = typeof val ; break ; case typeof val === 'object' && val === null : val = 'null' ; break ; case typeof val === 'object' && val instanceof Array : val = 'array' ; break ; case typeof val === 'object' : val = 'object' ; break ; default : val = val . toString ( ) ; } if ( typeof histogram [ val ] !== 'number' ) histogram [ val ] = 0 ; histogram [ val ] ++ ; } ) ; } } ) ; return histogram ; }