if (this.fixedStringOnly) {
              //System.err.println("DEBUG: fixed-only: "+this.fixedString);
              int o = this.fixedStringTable.matches(target, con.start, con.limit);
              if (o >= 0) {
                  if (con.match != null) {
                      con.match.setBeginning(0, o);
                      con.match.setEnd(0, o+this.fixedString.length());
                  }
                  con.inuse = false;
                  return true;
              }
              con.inuse = false;
              return false;
          }