public WrappingStringBuilder append(final String s){
  final int end=s.length();
  for (int i=0; i < end; i++) {
    append(s.charAt(i));
  }
  return this;
}

public WrappingStringBuilder append ( final String s ) { final int end = s . length ( ) ; for ( int i = 0 ; i < end ; i ++ ) { append ( s . charAt ( i ) ) ; } return this ; }
appends a string without implicit wrapping .
