@Test
public void literal() {

    PageRange pr = PageParser.parse("A page");
    assertEquals("A page", pr.getLiteral());
    assertNull(pr.getPageFirst());
    assertNull(pr.getNumberOfPages());
    assertFalse(pr.isMultiplePages());
    pr = PageParser.parse("A,,page");
    assertEquals("A,,page", pr.getLiteral());
    assertNull(pr.getPageFirst());
    assertNull(pr.getNumberOfPages());
    assertFalse(pr.isMultiplePages());
}