*/
    public static final String PATH_SEPARATOR = System.getProperty("path.separator");

    /**
     * <code>os.name</code> system property. Example: <code>Mac OS X</code>
     */
    public static final String OS_NAME = System.getProperty("os.name");

    /**
     * <code>java.io.tmpdir</code> system property. Example: /tmp
     */

        domainFilter.processUrl("http://example.com/");

        assertEquals(1, domainFilter.cachedIncludeSet.size());
        assertEquals(1, domainFilter.cachedExcludeSet.size());
        assertEquals("http://example.com/.*", domainFilter.cachedIncludeSet.toArray()[0]);
        assertEquals("http://example.com/.*", domainFilter.cachedExcludeSet.toArray()[0]);

    public SampleElements<Multiset.Entry<E>> samples() {
      SampleElements<E> samples = gen.samples();
      return new SampleElements<>(
          Multisets.immutableEntry(samples.e0(), 3),
          Multisets.immutableEntry(samples.e1(), 4),
          Multisets.immutableEntry(samples.e2(), 1),
          Multisets.immutableEntry(samples.e3(), 5),
          Multisets.immutableEntry(samples.e4(), 2));
    }

    @Override

    getList().replaceAll(e -> samples.e3());
    expectContents(nCopies(getNumElements(), samples.e3()));
  }

  @ListFeature.Require(SUPPORTS_SET)
  public void testReplaceAll_changesSome() {
    getList().replaceAll(e -> e.equals(samples.e0()) ? samples.e3() : e);
    E[] expected = createSamplesArray();
    for (int i = 0; i < expected.length; i++) {
      if (expected[i].equals(samples.e0())) {
        expected[i] = samples.e3();

        url = "http://www.example.com/";
        assertEquals("http_CLN_/www.example.com/index.html", fileTransformer.getFilePath(url));

        url = "http://www.example.com/action?a=1";
        assertEquals("http_CLN_/www.example.com/action_QUEST_a=1", fileTransformer.getFilePath(url));

        url = "http://www.example.com/action?a=1&b=2";

        boolean result2 = indexUpdateCallback.isUrlCrawlable(paramMap, "http://example.com/private/data.html");
        boolean result3 = indexUpdateCallback.isUrlCrawlable(paramMap, "http://example.com/temp/cache.html");
        boolean result4 = indexUpdateCallback.isUrlCrawlable(paramMap, "http://example.com/public/index.html");

        assertFalse(result1);

For example, with an ID of `42`, this would render:

```html
<a href="/items/42">
```

## Templates and static files { #templates-and-static-files }

You can also use `url_for()` inside of the template, and use it, for example, with the `StaticFiles` you mounted with the `name="static"`.

```jinja hl_lines="4"

    //    For example, *.example.com is permitted, while *a.example.com, a*.example.com,
    //    a*b.example.com, a.*.example.com are not permitted.
    // 2. Asterisk (*) cannot match across domain name labels.
    //    For example, *.example.com matches test.example.com but does not match
    //    sub.test.example.com.

### Create metadata for tags { #create-metadata-for-tags }

Let's try that in an example with tags for `users` and `items`.

Create metadata for your tags and pass it to the `openapi_tags` parameter:

{* ../../docs_src/metadata/tutorial004.py hl[3:16,18] *}

Notice that you can use Markdown inside of the descriptions, for example "login" will be shown in bold (**login**) and "fancy" will be shown in italics (_fancy_).

/// tip

        rule.addCondition("url", "https?://.*\\.example\\.com/.*");

        ResponseData responseData1 = new ResponseData();
        responseData1.setUrl("http://www.example.com/page");
        assertTrue(rule.match(responseData1));

        ResponseData responseData2 = new ResponseData();
        responseData2.setUrl("https://api.example.com/v1/users");
        assertTrue(rule.match(responseData2));