return etagRegex.ReplaceAllString(etag, "$1")
}

// isETagEqual return true if the canonical representations of two ETag strings
// are equal, false otherwise
func isETagEqual(left, right string) bool {
	return canonicalizeETag(left) == canonicalizeETag(right)
}

// setPutObjHeaders sets all the necessary headers returned back
// upon a success Put/Copy/CompleteMultipart/Delete requests

			}
			return
		}
		h.ServeHTTP(w, r)
	})
}

// setBucketForwardingMiddleware middleware forwards the path style requests
// on a bucket to the right bucket location, bucket to IP configuration
// is obtained from centralized etcd configuration service.
func setBucketForwardingMiddleware(h http.Handler) http.Handler {

	}

	return subSys, inputs, tgt, e
}

// kvFields - converts an input string of form "k1=v1 k2=v2" into
// fields of ["k1=v1", "k2=v2"], the tokenization of each `k=v`
// happens with the right number of input keys, if keys
// input is empty returned value is empty slice as well.
func kvFields(input string, keys []string) []string {
	valueIndexes := make([]int, 0, len(keys))
	for _, key := range keys {

			objSize: 2 << 10,
			sizeFilter: BatchJobSizeFilter{
				UpperBound: 10 << 20,
				LowerBound: 1 << 20,
			},
			want: false,
		},
		{
			// 11MiB > 10 MiB -> out of range from right
			objSize: 11 << 20,
			sizeFilter: BatchJobSizeFilter{
				UpperBound: 10 << 20,
				LowerBound: 1 << 20,
			},
			want: false,
		},
		{
			//  2MiB < 10MiB -> in range
			objSize: 2 << 20,

// AnonymousCredentials simply points to empty credentials
var AnonymousCredentials = Credentials{}

// IsAccessKeyValid - validate access key for right length.
func IsAccessKeyValid(accessKey string) bool {
	return len(accessKey) >= accessKeyMinLen
}

// IsSecretKeyValid - validate secret key for right length.
func IsSecretKeyValid(secretKey string) bool {
	return len(secretKey) >= secretKeyMinLen
}

// Default access and secret keys.

	apiRequestsIncomingTotalMD = NewGaugeMD(apiRequestsIncomingTotal,
		"Total number of incoming requests", "type")

	apiRequestsInFlightTotalMD = NewGaugeMD(apiRequestsInFlightTotal,
		"Total number of requests currently in flight", "name", "type")
	apiRequestsTotalMD = NewCounterMD(apiRequestsTotal,
		"Total number of requests", "name", "type")
	apiRequestsErrorsTotalMD = NewCounterMD(apiRequestsErrorsTotal,

	mlock sync.RWMutex // mutex for bucket measurement

	bucketsThrottle    map[BucketOptions]*bucketThrottle
	bucketsMeasurement map[BucketOptions]*bucketMeasurement // Buckets with objects in flight

	bucketMovingAvgTicker *time.Ticker    // Ticker for calculating moving averages
	ctx                   context.Context // Context for generate
	NodeCount             uint64
}

			return written, err
		}

		if nw != int64(len(buf)) {
			return written, io.ErrShortWrite
		}

		if totalSize > 0 && written == totalSize {
			// we have written the entire stream, return right here.
			return written, nil
		}

		if eof {
			// We reached EOF prematurely but we did not write everything
			// that we promised that we would write.
			if totalSize > 0 && written != totalSize {

		maxl := xfixl
		if strl < maxl {
			maxl = strl
		}
		// compare letters
		if pre {
			// prefix, iterate left to right
			for i := 0; i < maxl; i++ {
				if xfix[i] != str[i] {
					xfix = xfix[:i]
					break
				}
			}
		} else {
			// suffix, iterate right to left
			for i := 0; i < maxl; i++ {
				xi := xfixl - i - 1
				si := strl - i - 1
				if xfix[xi] != str[si] {

	}
}

func errParseExpectedRightParenBuiltinFunctionCall(err error) *s3Error {
	return &s3Error{
		code:       "ParseExpectedRightParenBuiltinFunctionCall",
		message:    "Did not find the expected right parenthesis character in the SQL expression.",
		statusCode: 400,
		cause:      err,
	}
}

func errParseExpectedTypeName(err error) *s3Error {
	return &s3Error{
		code:       "ParseExpectedTypeName",