nl_tokens: 3 - byte chars
pl_tokens: function ( c ) { // (note parentheses for precence) var cc = ( ( c . charCodeAt ( 0 ) & 0x0f ) << 12 ) | ( ( c . charCodeAt ( 1 ) & 0x3f ) << 6 ) | ( c . charCodeAt ( 2 ) & 0x3f ) ; return <mask> . fromCharCode ( cc ) ; }