func (c Config) DelFrom(r io.Reader) error {
	scanner := bufio.NewScanner(r)
	for scanner.Scan() {
		// Skip any empty lines, or comment like characters
		text := scanner.Text()
		if text == "" || strings.HasPrefix(text, KvComment) {
			continue
		}
		if err := c.DelKVS(text); err != nil {
			return err
		}
	}
	return scanner.Err()
}

// ContextKeyString is type(string) for contextKey

func (e metaCacheEntry) isObjectDir() bool {
	return len(e.metadata) > 0 && strings.HasSuffix(e.name, slashSeparator)
}

// hasPrefix returns whether an entry has a specific prefix
func (e metaCacheEntry) hasPrefix(s string) bool {
	return strings.HasPrefix(e.name, s)
}

// matches returns if the entries have the same versions.
// If strict is false we allow signatures to mismatch.

	}

	return vc.PrefixSuspended(prefix)
}

// Get returns stored bucket policy
func (sys *BucketVersioningSys) Get(bucket string) (*versioning.Versioning, error) {
	if bucket == minioMetaBucket || strings.HasPrefix(bucket, minioMetaBucket) {
		return &versioning.Versioning{XMLNS: "http://s3.amazonaws.com/doc/2006-03-01/"}, nil
	}

	vcfg, _, err := globalBucketMetadataSys.GetVersioningConfig(bucket)
	return vcfg, err
}

	}
	// Success.
	return etag
}

// HasPrefix - Prefix matcher string matches prefix in a platform specific way.
// For example on windows since its case insensitive we are supposed
// to do case insensitive checks.
func HasPrefix(s string, prefix string) bool {
	if runtime.GOOS == globalWindowsOSName {
		return stringsHasPrefixFold(s, prefix)
	}
	return strings.HasPrefix(s, prefix)
}

	if hostAddr == "" {
		return "", "", errors.New("unable to process empty address")
	}

	// Simplify the work of url.Parse() and always send a url with
	if !strings.HasPrefix(hostAddr, "http://") && !strings.HasPrefix(hostAddr, "https://") {
		hostAddr = "//" + hostAddr
	}

	// Parse address to extract host and scheme field
	u, err := url.Parse(hostAddr)
	if err != nil {
		return "", "", err
	}

		return "", false, err
	}
	if strings.HasPrefix(cwd, goroot) {
		subdir, err := filepath.Rel(goroot, cwd)
		if err != nil {
			return "", false, err
		}
		return subdir, true, nil
	}

	for _, p := range filepath.SplitList(build.Default.GOPATH) {
		pabs, err := filepath.EvalSymlinks(p)
		if err != nil {
			return "", false, err
		}
		if !strings.HasPrefix(cwd, pabs) {
			continue
		}

		isSameType  = fullDataType == realDataType
	)

	if !field.PrimaryKey {
		// check type
		if !strings.HasPrefix(fullDataType, realDataType) {
			// check type aliases
			aliases := m.DB.Migrator().GetTypeAliases(realDataType)
			for _, alias := range aliases {
				if strings.HasPrefix(fullDataType, alias) {
					isSameType = true
					break
				}
			}

			if !isSameType {
				alterColumn = true

	"github.com/minio/pkg/v3/policy"
)

// Verify if request has JWT.
func isRequestJWT(r *http.Request) bool {
	return strings.HasPrefix(r.Header.Get(xhttp.Authorization), jwtAlgorithm)
}

// Verify if request has AWS Signature Version '4'.
func isRequestSignatureV4(r *http.Request) bool {
	return strings.HasPrefix(r.Header.Get(xhttp.Authorization), signV4Algorithm)
}

// Verify if request has AWS Signature Version '2'.

	// Output: Fields are: ["foo1" "bar2" "baz3"]
}

func ExampleHasPrefix() {
	fmt.Println(bytes.HasPrefix([]byte("Gopher"), []byte("Go")))
	fmt.Println(bytes.HasPrefix([]byte("Gopher"), []byte("C")))
	fmt.Println(bytes.HasPrefix([]byte("Gopher"), []byte("")))
	// Output:
	// true
	// false
	// true
}

func ExampleHasSuffix() {

					for _, s := range db.Statement.Selects {
						if s == clause.Associations {
							selects = append(selects, s)
						} else if columnPrefix := column + "."; strings.HasPrefix(s, columnPrefix) {
							selects = append(selects, strings.TrimPrefix(s, columnPrefix))
						}
					}

					if len(selects) > 0 {
						tx = tx.Select(selects)
					}
				}