Method find

java/com/google/re2j/RE2.java:650–656

(String s)

   */
  // This is visible for testing.
  String find(String s) {
    int[] a = doExecute(MachineInput.fromUTF16(s), 0, UNANCHORED, 2);
    if (a == null) {
      return "";
    }
    return s.substring(a[0], a[1]);
  }

  /**
   * Returns a two-element array of integers defining the location of the leftmost match in