writeTestFile("# This is a comment\n\na,b => c\n\n# Another comment\nd,e => f\n");

        PagingList<CharMappingItem> result = charMappingFile.selectList(0, 10);
        assertEquals(2, result.size());
    }

    // Test reload with invalid format
    @Test
    public void test_reload_invalidFormat() throws Exception {
        writeTestFile("a,b => c\ninvalid_line\nd,e => f\n");

        // Should skip invalid line

   *      77777$D======N77777777777N777N?         N777777
   *     I77777$$$N7===M$$77777777$77777777$MMZ77777777N
   *      $$$$$$$$$$$NIZN$$$$$$$$$M$$7777777777777777ON
   *       M$$$$$$$$M    M$$$$$$$$N=N$$$$7777777$$$ND
   *      O77Z$$$$$$$     M$$$$$$$$MNI==$DNNNNM=~N
   *   7 :N MNN$$$$M$      $$$777$8      8D8I
   *     NMM.:7O           777777778
   *                       7777777MN
   *                       M NO .7:

   *      77777$D======N77777777777N777N?         N777777
   *     I77777$$$N7===M$$77777777$77777777$MMZ77777777N
   *      $$$$$$$$$$$NIZN$$$$$$$$$M$$7777777777777777ON
   *       M$$$$$$$$M    M$$$$$$$$N=N$$$$7777777$$$ND
   *      O77Z$$$$$$$     M$$$$$$$$MNI==$DNNNNM=~N
   *   7 :N MNN$$$$M$      $$$777$8      8D8I
   *     NMM.:7O           777777778
   *                       7777777MN
   *                       M NO .7:

		"PK\x01\x02\x14\x00\x14\x00\b\b\b\x004\x9d3?\x14\xc5K\xab\x192\x02\x00\xc8\xcd\x04\x00\v\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xe8\x10\x00\x00classes.dex",
		"PK\x01\x02\x14\x00\x14\x00\b\b\b\x004\x9d3?E\x96\nD\xac\x01\x00\x00P\x03\x00\x00&\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00:C\x02\x00res/layout/actionbar_set_wallpaper.xml",

m-dc\u0007from-de\u0007from-fl\u0007from-ga\u0007from-hi\u0007from-ia\u0007from-id\u0007from-il\u0007from-in\u0007from-ks\u0007from-ky\u0007from-ma\u0007from-md\u0007from-mi\u0007from-mn\u0007from-mo\u0007from-ms\u0007from-mt\u0007from-nc\u0007from-nd\u0007from-ne\u0007from-nh\u0007from-nj\u0007from-nm\u0007from-nv\u0007from-oh\u0007from-ok\u0007from-or\u0007from-pa\u0007from-pr\u0007from-ri\u0007from-sc\u0007from-sd\u0007from-tn\u0007from-tx\u0007from-ut\u0007from-va\u0007from-vt\u0007from-wa\u...

Section 4.5 "General Category" defines a set of character categories.
Go treats all characters in any of the Letter categories Lu, Ll, Lt, Lm, or Lo
as Unicode letters, and those in the Number category Nd as Unicode digits.
</p>

<h3 id="Letters_and_digits">Letters and digits</h3>

<p>
The underscore character <code>_</code> (U+005F) is considered a lowercase letter.
</p>
<pre class="ebnf">