# Case 3: Multiple colons in directive
User-agent: MultiColonBot
Disallow: http://example.com:8080/path
Allow: /path:with:colons

# Case 4: Extra whitespace
User-agent:    ExtraSpaceBot
Disallow:     /spaced/
   Allow:   /also-spaced/

# Case 5: Mixed case directives (should still work)
UsEr-AgEnT: MixedCaseBot
DiSaLlOw: /test1/
AlLoW: /test2/
CrAwL-dElAy: 2
SiTeMaP: http://example.com/sitemap.xml

	// credElement is fetched first to skip replacing the space in access key.
	credElement := strings.TrimPrefix(strings.Split(strings.TrimSpace(v4Auth), ",")[0], signV4Algorithm)
	// Replace all spaced strings, some clients can send spaced
	// parameters and some won't. So we pro-actively remove any spaces
	// to make parsing easier.
	v4Auth = strings.ReplaceAll(v4Auth, " ", "")
	if v4Auth == "" {

    }

    @Test
    @DisplayName("Should handle whitespace delimiter")
    void testJoinWithWhitespaceDelimiter() {
        String result = StringUtil.join("   ", "spaced", "out");
        assertEquals("spaced   out", result);
    }

    @Test
    @DisplayName("Should handle elements containing delimiter")
    void testJoinElementsContainingDelimiter() {

    /**
     * Happy-path: a filter that accepts any name.
     */
    @ParameterizedTest
    @DisplayName("accepts any non-null/any string")
    @ValueSource(strings = { "file.txt", "data.DAT", "a", "x.y.z", "  spaced  " })
    void acceptsAnyNameReturnsTrue(String input) throws Exception {
        SmbFilenameFilter filter = (dir, name) -> true;

        boolean result = filter.accept(mockDir, input);

        assertTrue(robotsTxt.allows("/path:with:colons", "MultiColonBot"));

        // Test ExtraSpaceBot - extra whitespace should be handled
        assertFalse(robotsTxt.allows("/spaced/", "ExtraSpaceBot"));
        assertTrue(robotsTxt.allows("/also-spaced/", "ExtraSpaceBot"));

        // Test MixedCaseBot - mixed case directives should work
        assertFalse(robotsTxt.allows("/test1/", "MixedCaseBot"));

        bb.put("\\\\server\\\\share".getBytes(StandardCharsets.UTF_16LE));
        bb.putShort((short) 0);

        bb.position(60); // Properly spaced
        bb.put("\\\\alt\\\\path".getBytes(StandardCharsets.UTF_16LE));
        bb.putShort((short) 0);

        bb.position(90); // Properly spaced
        bb.put("NODE01".getBytes(StandardCharsets.UTF_16LE));
        bb.putShort((short) 0);

    assertEquals("string with spaces", spaceEscaper.escape("string with spaces"));
  }

  /** Tests that if we add extra 'safe' characters they remain unescaped */
  public void testCustomEscaper() {
    UnicodeEscaper e = new PercentEscaper("+*/-", false);
    for (char c = 0; c < 128; c++) {
      if ((c >= '0' && c <= '9')
          || (c >= 'a' && c <= 'z')
          || (c >= 'A' && c <= 'Z')

3) Keep heading punctuation as in the source. In particular, keep occurrences of literal « - » (space-hyphen-space) as « - » (the existing French docs use a hyphen here).

### French instructions about technical terms

 * within the nested {@link TextNormalizeContext} class.
 *
 * <p>The text normalization process includes:
 * <ul>
 *   <li>Treating ISO control characters and specified space characters as spaces.</li>
 *   <li>Appending alphanumeric characters (0-9, A-Z, a-z) to the buffer.</li>
 *   <li>Appending symbol characters (!-/, :-@, [-`, {-~) to the buffer.</li>

}

// Trim leading and trailing spaces and replace sequential spaces with one space, following Trimall()
// in http://docs.aws.amazon.com/general/latest/gr/sigv4-create-canonical-request.html
func signV4TrimAll(input string) string {
	// Compress adjacent spaces (a space is determined by
	// unicode.IsSpace() internally here) to one space and return
	return strings.Join(strings.Fields(input), " ")
}