options {
                buildAST = true;
            }

            expr:   mexpr (PLUS^ mexpr)* SEMI!
                ;

            mexpr
                :   atom (STAR^ atom)*
                ;

            atom:   INT
                ;"""

        file("grammar-builder/src/main/antlr/AnotherGrammar.g") << """
            header {
                package org.acme;
            }

        options {
            buildAST = true;
        }

        expr:   mexpr (PLUS^ mexpr)* SEMI!
            ;

        mexpr
            :   atom (STAR^ atom)*
            ;

        atom:   INT
            ;"""
        expect:
        "org.acme" == new MetadataExtracter().getPackageName(new StringReader(grammar))
    }

		dec.UseNumber()
		val, err := decodeJSONValue(dec)
		if err == nil && val.atom == json.Delim('{') {
			// Rewrite the Package field.
			found := false
			for i := 0; i < len(val.seq); i += 2 {
				if val.seq[i].atom == "Package" {
					if pkg, ok := val.seq[i+1].atom.(string); ok {
						val.seq[i+1].atom = pkg + ":" + f.variant
						found = true
						break
					}
				}
			}
			if found {

		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
}

        options {
            buildAST = true;
        }

        expr:   mexpr (PLUS^ mexpr)* SEMI!
        ;

        mexpr
        :   atom (STAR^ atom)*
        ;

        atom:   INT
        ;"""
        projectDir.file("build.gradle") << """
            apply plugin: "antlr"

            ${mavenCentralRepository()}
        """
    }

    @Override

        options {
            buildAST = true;
        }

        expr:   mexpr (PLUS^ mexpr)* SEMI!
        ;

        mexpr
        :   atom (STAR^ atom)*
        ;

        atom:   INT
        ;"""

        when:
        succeeds("generateGrammarSource")

        then:
        file("build/generated-src/antlr/main/TestGrammar.java").exists()

    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