public UnescapedCharSequence(char[] chars,boolean[] wasEscaped,int offset,int length){
  this.chars=new char[length];
  this.wasEscaped=new boolean[length];
  System.arraycopy(chars,offset,this.chars,0,length);
  System.arraycopy(wasEscaped,offset,this.wasEscaped,0,length);
}

public UnescapedCharSequence ( char [ ] chars , boolean [ ] wasEscaped , int offset , int length ) { this . chars = new char [ length ] ; this . wasEscaped = new boolean [ length ] ; System . arraycopy ( chars , offset , this . chars , 0 , length ) ; System . arraycopy ( wasEscaped , offset , this . wasEscaped , 0 , length ) ; }
create a escaped charsequence
