nl_tokens: Create an ArrayChar from an ArrayObject of Strings .
pl_tokens: public static ArrayChar makeFromStringArray ( ArrayObject values ) { // find longest string
   IndexIterator ii = values . getIndexIterator ( ) ; int strlen = 0 ; while ( ii . hasNext ( ) ) { String s = ( String ) ii . next ( ) ; strlen = Math . <mask> ( s . length ( ) , strlen ) ; } return makeFromStringArray ( values , strlen ) ; }