return "", errors.New("mail: invalid string")
	}
	atom, p.s = p.s[:i], p.s[i:]
	if !permissive {
		if strings.HasPrefix(atom, ".") {
			return "", errors.New("mail: leading dot in atom")
		}
		if strings.Contains(atom, "..") {
			return "", errors.New("mail: double dot in atom")
		}
		if strings.HasSuffix(atom, ".") {
			return "", errors.New("mail: trailing dot in atom")
		}
	}
	return atom, nil
}

    assertEquals("text", MediaType.parse("text/plain").type());
    assertEquals("application", MediaType.parse("application/atom+xml; charset=utf-8").type());
  }

  public void testGetSubtype() {
    assertEquals("plain", MediaType.parse("text/plain").subtype());
    assertEquals("atom+xml", MediaType.parse("application/atom+xml; charset=utf-8").subtype());
  }

  private static final ImmutableListMultimap<String, String> PARAMETERS =

    assertEquals("text", MediaType.parse("text/plain").type());
    assertEquals("application", MediaType.parse("application/atom+xml; charset=utf-8").type());
  }

  public void testGetSubtype() {
    assertEquals("plain", MediaType.parse("text/plain").subtype());
    assertEquals("atom+xml", MediaType.parse("application/atom+xml; charset=utf-8").subtype());
  }

  private static final ImmutableListMultimap<String, String> PARAMETERS =

			panic(&SyntaxError{Offset: p.pos, Err: "double negation not allowed"})
		}
		return not(p.atom())
	}
	return p.atom()
}

// atom parses a tag or a parenthesized expression.
// On entry, the next input token HAS been lexed.
// On exit, the next input token has been lexed and is in p.tok.
func (p *exprParser) atom() Expr {
	// first token already in p.tok
	if p.tok == "(" {
		pos := p.pos
		defer func() {

the link rel="self", but the default value for that drops
the :port from the URL, and I cannot for the life of me
figure out how to get the Atom generator deep inside
django not to do that, or even where it is doing that,
or even what code is running to generate the Atom feed.
(I thought I knew but I added some assert False statements
and it kept running!)

Ignoring that particular problem, I would appreciate

	"istio.io/istio/operator/pkg/util"
	"istio.io/istio/pkg/log"
)

var (
	scope = log.RegisterScope("validation", "API validation")

	// alphaNumericRegexp defines the alpha numeric atom, typically a
	// component of names. This only allows lower case characters and digits.
	alphaNumericRegexp = match(`[a-z0-9]+`)

	// separatorRegexp defines the separators allowed to be embedded in name

				(35 <= c && c <= 91) ||
				(93 <= c && c <= 126):
				// qtext
				localPartBytes = append(localPartBytes, c)

			default:
				return mailbox, false
			}
		}
	} else {
		// Atom ("." Atom)*
	NextChar:
		for len(in) > 0 {
			// atext from RFC 2822, Section 3.2.4
			c := in[0]

			switch {
			case c == '\\':
				// Examples given in RFC 3696 suggest that

		Link     string `xml:"link"`
		AtomLink string `xml:"http://www.w3.org/2005/Atom link"` // Same name in a different name space
	}
	testCase := `<example>
			<title>Example</title>
			<link>http://example.com/default</link> <!-- not assigned -->
			<link>http://example.com/home</link> <!-- not assigned -->
			<ns:link xmlns:ns="http://www.w3.org/2005/Atom">http://example.com/ns</ns:link>
		</example>`

	var dest ExampleConflict

   *
   * @since 14.0
   */
  public static final MediaType APPLICATION_XML_UTF_8 = createConstantUtf8(APPLICATION_TYPE, "xml");

  public static final MediaType ATOM_UTF_8 = createConstantUtf8(APPLICATION_TYPE, "atom+xml");
  public static final MediaType BZIP2 = createConstant(APPLICATION_TYPE, "x-bzip2");

  /**
   * Files in the <a href="https://www.dartlang.org/articles/embedding-in-html/">dart</a>
   * programming language.

   *
   * @since 14.0
   */
  public static final MediaType APPLICATION_XML_UTF_8 = createConstantUtf8(APPLICATION_TYPE, "xml");

  public static final MediaType ATOM_UTF_8 = createConstantUtf8(APPLICATION_TYPE, "atom+xml");
  public static final MediaType BZIP2 = createConstant(APPLICATION_TYPE, "x-bzip2");

  /**
   * Files in the <a href="https://www.dartlang.org/articles/embedding-in-html/">dart</a>
   * programming language.