nl_tokens: for reference see 3 . 4 in http : // unicode . org / reports / tr9 /
pl_tokens: function _invertByLevel ( level , charArray , sourceToTargetMap , levels , params ) { if ( params . hiLevel < level ) { return ; } if ( level === 1 && _dir === DIR_RTL && ! _hasUbatB ) { charArray . reverse ( ) ; sourceToTargetMap && sourceToTargetMap . reverse ( ) ; return ; } var ch , high , end , low , len = charArray . length , start = 0 ; while ( start < len ) { if ( levels [ start ] >= level ) { end = start + 1 ; while ( end < len && levels [ end ] >= level ) { <mask> ++ ; } for ( low = start , high = end - 1 ; low < high ; low ++ , high -- ) { ch = charArray [ low ] ; charArray [ low ] = charArray [ high ] ; charArray [ high ] = ch ; if ( sourceToTargetMap ) { ch = sourceToTargetMap [ low ] ; sourceToTargetMap [ low ] = sourceToTargetMap [ high ] ; sourceToTargetMap [ high ] = ch ; } } start = end ; } start ++ ; } }