assertEquals(TextScanner.NL, TextScanner.category('\r'));
assertEquals(TextScanner.NORM, TextScanner.category('\r'));
    public void testCharCategory() {        assertEquals(TextScanner.NORM, TextScanner.category('a'));        assertEquals(TextScanner.NORM, TextScanner.category('\07'));        assertEquals(TextScanner.WS, TextScanner.category('\t'));        assertEquals(TextScanner.NL, TextScanner.category('\n'));        assertEquals(TextScanner.NL, TextScanner.category('\r'));        assertEquals(TextScanner.WS, TextScanner.category(' '));    }