nl_tokens: Returns the string representation of a number with placeholders added .
pl_tokens: function ( n , placeholder ) { if ( n === undefined || n === null || ! libs . object . isNumeric ( n ) ) return n ; placeholder = typeof placeholder === 'string' ? placeholder : '.' ; var rest , idx , int , ns = n . toString ( ) , neg = n < 0 ; idx = ns . indexOf ( '.' ) ; int = parseInt ( Math . abs ( n ) , 10 ) . toString ( ) ; if ( idx > - 1 ) rest = '.' + <mask> . substring ( idx + 1 , ns . length ) ; return ( neg ? '-' : '' ) + libs . string . reverse ( libs . string . reverse ( int ) . replace ( / (\d{3})(?!$) / g , '$1,' ) ) + ( rest || '' ) ; }