update github.com/compose-spec/compose-go to v1.0.8

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

vendor/github.com/compose-spec/compose-go/loader/full-example.yml

@@ -268,7 +268,7 @@ services:
       - .:/code
       - ./static:/var/www/html
       # User-relative path
-      - ~/configs:/etc/configs/:ro
+      - ~/configs:/etc/configs:ro
       # Named volume
       - datavolume:/var/lib/mysql
       - type: bind

vendor/github.com/compose-spec/compose-go/loader/loader.go

@@ -145,7 +145,7 @@ func Load(configDetails types.ConfigDetails, options ...func(*Options)) (*types.
 		op(opts)
 	}
 
-	configs := []*types.Config{}
+	var configs []*types.Config
 	for i, file := range configDetails.ConfigFiles {
 		configDict := file.Config
 		if configDict == nil {
@@ -222,14 +222,14 @@ func Load(configDetails types.ConfigDetails, options ...func(*Options)) (*types.
 }
 
 func parseConfig(b []byte, opts *Options) (map[string]interface{}, error) {
-	yaml, err := ParseYAML(b)
+	yml, err := ParseYAML(b)
 	if err != nil {
 		return nil, err
 	}
 	if !opts.SkipInterpolation {
-		return interp.Interpolate(yaml, *opts.Interpolate)
+		return interp.Interpolate(yml, *opts.Interpolate)
 	}
-	return yaml, err
+	return yml, err
 }
 
 func groupXFieldsIntoExtensions(dict map[string]interface{}) map[string]interface{} {
@@ -342,8 +342,8 @@ func createTransformHook(additionalTransformers ...Transformer) mapstructure.Dec
 		reflect.TypeOf(types.UlimitsConfig{}):                    transformUlimits,
 		reflect.TypeOf(types.UnitBytes(0)):                       transformSize,
 		reflect.TypeOf([]types.ServicePortConfig{}):              transformServicePort,
-		reflect.TypeOf(types.ServiceSecretConfig{}):              transformStringSourceMap,
-		reflect.TypeOf(types.ServiceConfigObjConfig{}):           transformStringSourceMap,
+		reflect.TypeOf(types.ServiceSecretConfig{}):              transformFileReferenceConfig,
+		reflect.TypeOf(types.ServiceConfigObjConfig{}):           transformFileReferenceConfig,
 		reflect.TypeOf(types.StringOrNumberList{}):               transformStringOrNumberList,
 		reflect.TypeOf(map[string]*types.ServiceNetworkConfig{}): transformServiceNetworkMap,
 		reflect.TypeOf(types.Mapping{}):                          transformMappingOrListFunc("=", false),
@@ -372,7 +372,7 @@ func createTransformHook(additionalTransformers ...Transformer) mapstructure.Dec
 	}
 }
 
-// keys needs to be converted to strings for jsonschema
+// keys need to be converted to strings for jsonschema
 func convertToStringKeysRecursive(value interface{}, keyPrefix string) (interface{}, error) {
 	if mapping, ok := value.(map[interface{}]interface{}); ok {
 		dict := make(map[string]interface{})
@@ -396,7 +396,7 @@ func convertToStringKeysRecursive(value interface{}, keyPrefix string) (interfac
 		return dict, nil
 	}
 	if list, ok := value.([]interface{}); ok {
-		convertedList := []interface{}{}
+		var convertedList []interface{}
 		for index, entry := range list {
 			newKeyPrefix := fmt.Sprintf("%s[%d]", keyPrefix, index)
 			convertedEntry, err := convertToStringKeysRecursive(entry, newKeyPrefix)
@@ -532,7 +532,7 @@ func LoadService(name string, serviceDict map[string]interface{}, workingDir str
 	}
 
 	for i, volume := range serviceConfig.Volumes {
-		if volume.Type != "bind" {
+		if volume.Type != types.VolumeTypeBind {
 			continue
 		}
 
@@ -552,14 +552,14 @@ func resolveEnvironment(serviceConfig *types.ServiceConfig, workingDir string, l
 	environment := types.MappingWithEquals{}
 
 	if len(serviceConfig.EnvFile) > 0 {
-		for _, file := range serviceConfig.EnvFile {
-			filePath := absPath(workingDir, file)
+		for _, envFile := range serviceConfig.EnvFile {
+			filePath := absPath(workingDir, envFile)
 			file, err := os.Open(filePath)
 			if err != nil {
 				return err
 			}
 			defer file.Close()
-			fileVars, err := godotenv.Parse(file)
+			fileVars, err := godotenv.ParseWithLookup(file, godotenv.LookupFn(lookupEnv))
 			if err != nil {
 				return err
 			}
@@ -797,7 +797,7 @@ var transformServicePort TransformerFunc = func(data interface{}) (interface{},
 		// We process the list instead of individual items here.
 		// The reason is that one entry might be mapped to multiple ServicePortConfig.
 		// Therefore we take an input of a list and return an output of a list.
-		ports := []interface{}{}
+		var ports []interface{}
 		for _, entry := range entries {
 			switch value := entry.(type) {
 			case int:
@@ -852,17 +852,27 @@ var transformServiceDeviceRequest TransformerFunc = func(data interface{}) (inte
 	}
 }
 
-var transformStringSourceMap TransformerFunc = func(data interface{}) (interface{}, error) {
+var transformFileReferenceConfig TransformerFunc = func(data interface{}) (interface{}, error) {
 	switch value := data.(type) {
 	case string:
 		return map[string]interface{}{"source": value}, nil
 	case map[string]interface{}:
-		return groupXFieldsIntoExtensions(data.(map[string]interface{})), nil
+		if target, ok := value["target"]; ok {
+			value["target"] = cleanTarget(target.(string))
+		}
+		return groupXFieldsIntoExtensions(value), nil
 	default:
 		return data, errors.Errorf("invalid type %T for secret", value)
 	}
 }
 
+func cleanTarget(target string) string {
+	if target == "" {
+		return ""
+	}
+	return path.Clean(target)
+}
+
 var transformBuildConfig TransformerFunc = func(data interface{}) (interface{}, error) {
 	switch value := data.(type) {
 	case string:
@@ -906,9 +916,15 @@ var transformExtendsConfig TransformerFunc = func(data interface{}) (interface{}
 var transformServiceVolumeConfig TransformerFunc = func(data interface{}) (interface{}, error) {
 	switch value := data.(type) {
 	case string:
-		return ParseVolume(value)
+		volume, err := ParseVolume(value)
+		volume.Target = cleanTarget(volume.Target)
+		return volume, err
 	case map[string]interface{}:
-		return groupXFieldsIntoExtensions(data.(map[string]interface{})), nil
+		data := groupXFieldsIntoExtensions(data.(map[string]interface{}))
+		if target, ok := data["target"]; ok {
+			data["target"] = cleanTarget(target.(string))
+		}
+		return data, nil
 	default:
 		return data, errors.Errorf("invalid type %T for service volume", value)
 	}
@@ -971,7 +987,7 @@ func transformMappingOrList(mappingOrList interface{}, sep string, allowNil bool
 	switch value := mappingOrList.(type) {
 	case map[string]interface{}:
 		return toMapStringString(value, allowNil)
-	case ([]interface{}):
+	case []interface{}:
 		result := make(map[string]interface{})
 		for _, value := range value {
 			parts := strings.SplitN(value.(string), sep, 2)
@@ -1054,7 +1070,7 @@ func toString(value interface{}, allowNil bool) interface{} {
 }
 
 func toStringList(value map[string]interface{}, separator string, allowNil bool) []string {
-	output := []string{}
+	var output []string
 	for key, value := range value {
 		if value == nil && !allowNil {
 			continue

vendor/github.com/compose-spec/compose-go/loader/merge.go

@@ -114,6 +114,11 @@ func _merge(baseService *types.ServiceConfig, overrideService *types.ServiceConf
 	if overrideService.Entrypoint != nil {
 		baseService.Entrypoint = overrideService.Entrypoint
 	}
+	if baseService.Environment != nil {
+		baseService.Environment.OverrideBy(overrideService.Environment)
+	} else {
+		baseService.Environment = overrideService.Environment
+	}
 	return baseService, nil
 }
 
@@ -179,7 +184,7 @@ func toServiceVolumeConfigsMap(s interface{}) (map[interface{}]interface{}, erro
 }
 
 func toServiceSecretConfigsSlice(dst reflect.Value, m map[interface{}]interface{}) error {
-	s := []types.ServiceSecretConfig{}
+	var s []types.ServiceSecretConfig
 	for _, v := range m {
 		s = append(s, v.(types.ServiceSecretConfig))
 	}
@@ -189,7 +194,7 @@ func toServiceSecretConfigsSlice(dst reflect.Value, m map[interface{}]interface{
 }
 
 func toSServiceConfigObjConfigsSlice(dst reflect.Value, m map[interface{}]interface{}) error {
-	s := []types.ServiceConfigObjConfig{}
+	var s []types.ServiceConfigObjConfig
 	for _, v := range m {
 		s = append(s, v.(types.ServiceConfigObjConfig))
 	}
@@ -199,7 +204,7 @@ func toSServiceConfigObjConfigsSlice(dst reflect.Value, m map[interface{}]interf
 }
 
 func toServicePortConfigsSlice(dst reflect.Value, m map[interface{}]interface{}) error {
-	s := []types.ServicePortConfig{}
+	var s []types.ServicePortConfig
 	for _, v := range m {
 		s = append(s, v.(types.ServicePortConfig))
 	}
@@ -220,7 +225,7 @@ func toServicePortConfigsSlice(dst reflect.Value, m map[interface{}]interface{})
 }
 
 func toServiceVolumeConfigsSlice(dst reflect.Value, m map[interface{}]interface{}) error {
-	s := []types.ServiceVolumeConfig{}
+	var s []types.ServiceVolumeConfig
 	for _, v := range m {
 		s = append(s, v.(types.ServiceVolumeConfig))
 	}
@@ -229,7 +234,7 @@ func toServiceVolumeConfigsSlice(dst reflect.Value, m map[interface{}]interface{
 	return nil
 }
 
-type tomapFn func(s interface{}) (map[interface{}]interface{}, error)
+type toMapFn func(s interface{}) (map[interface{}]interface{}, error)
 type writeValueFromMapFn func(reflect.Value, map[interface{}]interface{}) error
 
 func safelyMerge(mergeFn func(dst, src reflect.Value) error) func(dst, src reflect.Value) error {
@@ -245,13 +250,13 @@ func safelyMerge(mergeFn func(dst, src reflect.Value) error) func(dst, src refle
 	}
 }
 
-func mergeSlice(tomap tomapFn, writeValue writeValueFromMapFn) func(dst, src reflect.Value) error {
+func mergeSlice(toMap toMapFn, writeValue writeValueFromMapFn) func(dst, src reflect.Value) error {
 	return func(dst, src reflect.Value) error {
-		dstMap, err := sliceToMap(tomap, dst)
+		dstMap, err := sliceToMap(toMap, dst)
 		if err != nil {
 			return err
 		}
-		srcMap, err := sliceToMap(tomap, src)
+		srcMap, err := sliceToMap(toMap, src)
 		if err != nil {
 			return err
 		}
@@ -262,12 +267,12 @@ func mergeSlice(tomap tomapFn, writeValue writeValueFromMapFn) func(dst, src ref
 	}
 }
 
-func sliceToMap(tomap tomapFn, v reflect.Value) (map[interface{}]interface{}, error) {
+func sliceToMap(toMap toMapFn, v reflect.Value) (map[interface{}]interface{}, error) {
 	// check if valid
 	if !v.IsValid() {
 		return nil, errors.Errorf("invalid value : %+v", v)
 	}
-	return tomap(v.Interface())
+	return toMap(v.Interface())
 }
 
 func mergeLoggingConfig(dst, src reflect.Value) error {

vendor/github.com/compose-spec/compose-go/loader/volume.go

@@ -36,11 +36,11 @@ func ParseVolume(spec string) (types.ServiceVolumeConfig, error) {
 		return volume, errors.New("invalid empty volume spec")
 	case 1, 2:
 		volume.Target = spec
-		volume.Type = string(types.VolumeTypeVolume)
+		volume.Type = types.VolumeTypeVolume
 		return volume, nil
 	}
 
-	buffer := []rune{}
+	var buffer []rune
 	for _, char := range spec + string(endOfSpec) {
 		switch {
 		case isWindowsDrive(buffer, char):
@@ -50,7 +50,7 @@ func ParseVolume(spec string) (types.ServiceVolumeConfig, error) {
 				populateType(&volume)
 				return volume, errors.Wrapf(err, "invalid spec: %s", spec)
 			}
-			buffer = []rune{}
+			buffer = nil
 		default:
 			buffer = append(buffer, char)
 		}

vendor/github.com/compose-spec/compose-go/template/template.go

@@ -26,7 +26,7 @@ import (
 
 var delimiter = "\\$"
 var substitutionNamed = "[_a-z][_a-z0-9]*"
-var substitutionBraced = "[_a-z][_a-z0-9]*(?::?[-?][^}]*)?"
+var substitutionBraced = "[_a-z][_a-z0-9]*(?::?[-?](.*}|[^}]*))?"
 
 var patternString = fmt.Sprintf(
 	"%s(?i:(?P<escaped>%s)|(?P<named>%s)|{(?P<braced>%s)}|(?P<invalid>))",
@@ -35,14 +35,6 @@ var patternString = fmt.Sprintf(
 
 var defaultPattern = regexp.MustCompile(patternString)
 
-// DefaultSubstituteFuncs contains the default SubstituteFunc used by the docker cli
-var DefaultSubstituteFuncs = []SubstituteFunc{
-	softDefault,
-	hardDefault,
-	requiredNonEmpty,
-	required,
-}
-
 // InvalidTemplateError is returned when a variable template is not in a valid
 // format
 type InvalidTemplateError struct {
@@ -67,6 +59,14 @@ type SubstituteFunc func(string, Mapping) (string, bool, error)
 // SubstituteWith substitute variables in the string with their values.
 // It accepts additional substitute function.
 func SubstituteWith(template string, mapping Mapping, pattern *regexp.Regexp, subsFuncs ...SubstituteFunc) (string, error) {
+	if len(subsFuncs) == 0 {
+		subsFuncs = []SubstituteFunc{
+			softDefault,
+			hardDefault,
+			requiredNonEmpty,
+			required,
+		}
+	}
 	var err error
 	result := pattern.ReplaceAllStringFunc(template, func(substring string) string {
 		matches := pattern.FindStringSubmatch(substring)
@@ -116,7 +116,7 @@ func SubstituteWith(template string, mapping Mapping, pattern *regexp.Regexp, su
 
 // Substitute variables in the string with their values
 func Substitute(template string, mapping Mapping) (string, error) {
-	return SubstituteWith(template, mapping, defaultPattern, DefaultSubstituteFuncs...)
+	return SubstituteWith(template, mapping, defaultPattern)
 }
 
 // ExtractVariables returns a map of all the variables defined in the specified
@@ -215,6 +215,10 @@ func softDefault(substitution string, mapping Mapping) (string, bool, error) {
 		return "", false, nil
 	}
 	name, defaultValue := partition(substitution, sep)
+	defaultValue, err := Substitute(defaultValue, mapping)
+	if err != nil {
+		return "", false, err
+	}
 	value, ok := mapping(name)
 	if !ok || value == "" {
 		return defaultValue, true, nil
@@ -229,6 +233,10 @@ func hardDefault(substitution string, mapping Mapping) (string, bool, error) {
 		return "", false, nil
 	}
 	name, defaultValue := partition(substitution, sep)
+	defaultValue, err := Substitute(defaultValue, mapping)
+	if err != nil {
+		return "", false, err
+	}
 	value, ok := mapping(name)
 	if !ok {
 		return defaultValue, true, nil
@@ -249,6 +257,10 @@ func withRequired(substitution string, mapping Mapping, sep string, valid func(s
 		return "", false, nil
 	}
 	name, errorMessage := partition(substitution, sep)
+	errorMessage, err := Substitute(errorMessage, mapping)
+	if err != nil {
+		return "", false, err
+	}
 	value, ok := mapping(name)
 	if !ok || !valid(value) {
 		return "", true, &InvalidTemplateError{

vendor/github.com/compose-spec/compose-go/types/project.go

@@ -46,7 +46,7 @@ type Project struct {
 
 // ServiceNames return names for all services in this Compose config
 func (p Project) ServiceNames() []string {
-	names := []string{}
+	var names []string
 	for _, s := range p.Services {
 		names = append(names, s.Name)
 	}
@@ -56,7 +56,7 @@ func (p Project) ServiceNames() []string {
 
 // VolumeNames return names for all volumes in this Compose config
 func (p Project) VolumeNames() []string {
-	names := []string{}
+	var names []string
 	for k := range p.Volumes {
 		names = append(names, k)
 	}
@@ -66,7 +66,7 @@ func (p Project) VolumeNames() []string {
 
 // NetworkNames return names for all volumes in this Compose config
 func (p Project) NetworkNames() []string {
-	names := []string{}
+	var names []string
 	for k := range p.Networks {
 		names = append(names, k)
 	}
@@ -76,7 +76,7 @@ func (p Project) NetworkNames() []string {
 
 // SecretNames return names for all secrets in this Compose config
 func (p Project) SecretNames() []string {
-	names := []string{}
+	var names []string
 	for k := range p.Secrets {
 		names = append(names, k)
 	}
@@ -86,7 +86,7 @@ func (p Project) SecretNames() []string {
 
 // ConfigNames return names for all configs in this Compose config
 func (p Project) ConfigNames() []string {
-	names := []string{}
+	var names []string
 	for k := range p.Configs {
 		names = append(names, k)
 	}
@@ -179,12 +179,12 @@ func (p *Project) RelativePath(path string) string {
 }
 
 // HasProfile return true if service has no profile declared or has at least one profile matching
-func (service ServiceConfig) HasProfile(profiles []string) bool {
-	if len(service.Profiles) == 0 {
+func (s ServiceConfig) HasProfile(profiles []string) bool {
+	if len(s.Profiles) == 0 {
 		return true
 	}
 	for _, p := range profiles {
-		for _, sp := range service.Profiles {
+		for _, sp := range s.Profiles {
 			if sp == p {
 				return true
 			}
@@ -327,7 +327,6 @@ func (p *Project) ResolveImages(resolver func(named reference.Named) (digest.Dig
 				if err != nil {
 					return err
 				}
-
 				named, err = reference.WithDigest(named, digest)
 				if err != nil {
 					return err

vendor/github.com/compose-spec/compose-go/types/types.go

@@ -33,7 +33,7 @@ func (d Duration) String() string {
 	return time.Duration(d).String()
 }
 
-// ConvertDurationPtr converts a typedefined Duration pointer to a time.Duration pointer with the same value.
+// ConvertDurationPtr converts a type defined Duration pointer to a time.Duration pointer with the same value.
 func ConvertDurationPtr(d *Duration) *time.Duration {
 	if d == nil {
 		return nil
@@ -121,7 +121,7 @@ type ServiceConfig struct {
 	Extends         ExtendsConfig                    `yaml:"extends,omitempty" json:"extends,omitempty"`
 	ExternalLinks   []string                         `mapstructure:"external_links" yaml:"external_links,omitempty" json:"external_links,omitempty"`
 	ExtraHosts      HostsList                        `mapstructure:"extra_hosts" yaml:"extra_hosts,omitempty" json:"extra_hosts,omitempty"`
-	GroupAdd        []string                         `mapstructure:"group_app" yaml:"group_add,omitempty" json:"group_add,omitempty"`
+	GroupAdd        []string                         `mapstructure:"group_add" yaml:"group_add,omitempty" json:"group_add,omitempty"`
 	Hostname        string                           `yaml:",omitempty" json:"hostname,omitempty"`
 	HealthCheck     *HealthCheckConfig               `yaml:",omitempty" json:"healthcheck,omitempty"`
 	Image           string                           `yaml:",omitempty" json:"image,omitempty"`
@@ -208,7 +208,7 @@ const (
 	PullPolicyNever = "never"
 	//PullPolicyIfNotPresent pull missing images
 	PullPolicyIfNotPresent = "if_not_present"
-	//PullPolicyIfNotPresent pull missing images
+	//PullPolicyMissing pull missing images
 	PullPolicyMissing = "missing"
 	//PullPolicyBuild force building images
 	PullPolicyBuild = "build"
@@ -611,7 +611,7 @@ func ParsePortConfig(value string) ([]ServicePortConfig, error) {
 }
 
 func convertPortToPortConfig(port nat.Port, portBindings map[nat.Port][]nat.PortBinding) ([]ServicePortConfig, error) {
-	portConfigs := []ServicePortConfig{}
+	var portConfigs []ServicePortConfig
 	for _, binding := range portBindings[port] {
 		startHostPort, endHostPort, err := nat.ParsePortRange(binding.HostPort)
 
@@ -647,13 +647,13 @@ type ServiceVolumeConfig struct {
 }
 
 const (
-	// TypeBind is the type for mounting host dir
+	// VolumeTypeBind is the type for mounting host dir
 	VolumeTypeBind = "bind"
-	// TypeVolume is the type for remote storage volumes
+	// VolumeTypeVolume is the type for remote storage volumes
 	VolumeTypeVolume = "volume"
-	// TypeTmpfs is the type for mounting tmpfs
+	// VolumeTypeTmpfs is the type for mounting tmpfs
 	VolumeTypeTmpfs = "tmpfs"
-	// TypeNamedPipe is the type for mounting Windows named pipes
+	// VolumeTypeNamedPipe is the type for mounting Windows named pipes
 	VolumeTypeNamedPipe = "npipe"
 )
 

vendor/github.com/compose-spec/godotenv/godotenv.go

@@ -266,12 +266,12 @@ func parseLineWithLookup(line string, envMap map[string]string, lookupFn LookupF
 	firstColon := strings.Index(line, ":")
 	splitString := strings.SplitN(line, "=", 2)
 	if firstColon != -1 && (firstColon < firstEquals || firstEquals == -1) {
-		//this is a yaml-style line
+		// This is a yaml-style line
 		splitString = strings.SplitN(line, ":", 2)
 	}
 
 	if len(splitString) != 2 {
-		err = errors.New("Can't separate key from value")
+		err = errors.New("can't separate key from value")
 		return
 	}
 	key = exportRegex.ReplaceAllString(splitString[0], "$1")
@@ -341,15 +341,15 @@ func expandVariables(v string, envMap map[string]string, lookupFn LookupFn) stri
 		if submatch[1] == "\\" || submatch[2] == "(" {
 			return submatch[0][1:]
 		} else if submatch[4] != "" {
-			//first check if we have defined this already earlier
+			// first check if we have defined this already earlier
 			if envMap[submatch[4]] != "" {
 				return envMap[submatch[4]]
 			}
 			if lookupFn == nil {
 				return ""
 			}
-			//if we have not defined it, check the lookup function provided
-			//by the user
+			// if we have not defined it, check the lookup function provided
+			// by the user
 			s2, ok := lookupFn(submatch[4])
 			if ok {
 				return s2

vendor/github.com/compose-spec/godotenv/parser.go

@@ -127,15 +127,21 @@ loop:
 
 // extractVarValue extracts variable value and returns rest of slice
 func extractVarValue(src []byte, envMap map[string]string, lookupFn LookupFn) (value string, rest []byte, err error) {
-	quote, hasPrefix := hasQuotePrefix(src)
-	if !hasPrefix {
-		// unquoted value - read until whitespace
-		end := bytes.IndexFunc(src, unicode.IsSpace)
-		if end == -1 {
-			return expandVariables(string(src), envMap, lookupFn), nil, nil
+	quote, isQuoted := hasQuotePrefix(src)
+	if !isQuoted {
+		// unquoted value - read until new line
+		end := bytes.IndexFunc(src, isNewLine)
+		var rest []byte
+		var value string
+		if end < 0 {
+			value := strings.TrimRightFunc(string(src), unicode.IsSpace)
+			rest = nil
+			return expandVariables(value, envMap, lookupFn), rest, nil
 		}
 
-		return expandVariables(string(src[0:end]), envMap, lookupFn), src[end:], nil
+		value = strings.TrimRightFunc(string(src[0:end]), unicode.IsSpace)
+		rest = src[end:]
+		return expandVariables(value, envMap, lookupFn), rest, nil
 	}
 
 	// lookup quoted string terminator
@@ -192,7 +198,7 @@ func indexOfNonSpaceChar(src []byte) int {
 }
 
 // hasQuotePrefix reports whether charset starts with single or double quote and returns quote character
-func hasQuotePrefix(src []byte) (prefix byte, isQuored bool) {
+func hasQuotePrefix(src []byte) (quote byte, isQuoted bool) {
 	if len(src) == 0 {
 		return 0, false
 	}
@@ -221,3 +227,9 @@ func isSpace(r rune) bool {
 	}
 	return false
 }
+
+
+// isNewLine reports whether the rune is a new line character
+func isNewLine(r rune) bool {
+	return r == '\n'
+}