XMLName xml.Name `xml:"Tag" json:"Tag"`
	Key     string   `xml:"Key,omitempty" json:"Key,omitempty"`
	Value   string   `xml:"Value,omitempty" json:"Value,omitempty"`
}

var (
	errInvalidTagKey   = Errorf("The TagKey you have provided is invalid")
	errInvalidTagValue = Errorf("The TagValue you have provided is invalid")
)

func (tag Tag) String() string {
	return tag.Key + "=" + tag.Value
}

type Tag struct {
	XMLName xml.Name `xml:"Tag"`
	Key     string   `xml:"Key,omitempty"`
	Value   string   `xml:"Value,omitempty"`
}

var (
	errInvalidTagKey   = Errorf("The TagKey you have provided is invalid")
	errInvalidTagValue = Errorf("The TagValue you have provided is invalid")

	errDuplicatedXMLTag = Errorf("duplicated XML Tag")
	errUnknownXMLTag    = Errorf("unknown XML Tag")
)

}

// Disable before debugging non-obvious errors from the type-checker.
const usePkgCache = true

var (
	pkgCache = map[string]*apiPackage{} // map tagKey to package
	pkgTags  = map[string][]string{}    // map import dir to list of relevant tags
)

// tagKey returns the tag-based key to use in the pkgCache.
// It is a comma-separated string; the first part is dir, the rest tags.

            ASN1TaggedObject tagged = ASN1Util.as(ASN1TaggedObject.class, fields);

            switch ( tagged.getTagNo() ) {
            case 0: // Ticket Flags
                break;
            case 1: // Key
                break;
            case 2: // Realm
                DERGeneralString derRealm = ASN1Util.as(DERGeneralString.class, tagged);
                this.userRealm = derRealm.getString();

                }
                ASN1TaggedObject tagged = (ASN1TaggedObject) vec.getObjectAt(1);
                if ( tagged.getTagNo() != 0 ) {
                    throw new IOException("Malformed SPNEGO token: tag " + tagged.getTagNo() + " " + tagged);
                }
                ASN1Sequence sequence = ASN1Sequence.getInstance(tagged, true);
                Enumeration<ASN1Object> fields = sequence.getObjects();

	"fmt"
	"hash"
	"io"
)

// Tagger is the interface that wraps the basic ETag method.
type Tagger interface {
	ETag() ETag
}

type wrapReader struct {
	io.Reader
	Tagger
}

var _ Tagger = wrapReader{} // compiler check

// ETag returns the ETag of the underlying Tagger.
func (r wrapReader) ETag() ETag {
	if r.Tagger == nil {
		return nil
	}
	return r.Tagger.ETag()
}

            ASN1TaggedObject tagged = (ASN1TaggedObject) der.readObject();
            ASN1Sequence sequence = ASN1Sequence.getInstance(tagged, true);
            Enumeration<?> fields = sequence.getObjects();
            while ( fields.hasMoreElements() ) {
                tagged = (ASN1TaggedObject) fields.nextElement();
                switch ( tagged.getTagNo() ) {
                case 0:

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        Enumeration<?> fields = sequence.getObjects();
        while ( fields.hasMoreElements() ) {
            ASN1TaggedObject tagged = ASN1Util.as(ASN1TaggedObject.class, fields);
            switch ( tagged.getTagNo() ) {
            case 0:// Kerberos version
                ASN1Integer tktvno = ASN1Util.as(ASN1Integer.class, tagged);
                if ( !tktvno.getValue().equals(new BigInteger(KerberosConstants.KERBEROS_VERSION)) ) {

        Enumeration<?> fields = seq.getObjects();
        while ( fields.hasMoreElements() ) {
            ASN1TaggedObject tagged = ASN1Util.as(ASN1TaggedObject.class, fields.nextElement());
            switch ( tagged.getTagNo() ) {
            case 0:
                ASN1Integer pvno = ASN1Util.as(ASN1Integer.class, tagged);
                if ( !pvno.getValue().equals(new BigInteger(KerberosConstants.KERBEROS_VERSION)) ) {