kingpin

Jul 24, 2016

Changes in this version

type Application

+ func (a *Application) ErrorWriter(w io.Writer) *Application

+ func (a *Application) UsageWriter(w io.Writer) *Application

Jun 23, 2016

Changes in this version

type ArgClause

+ func (a *ArgClause) Envar(name string) *ArgClause

+ func (a *ArgClause) HintAction(action HintAction) *ArgClause

+ func (a *ArgClause) HintOptions(options ...string) *ArgClause

+ func (a *ArgClause) NoEnvar() *ArgClause

+ func (e *ArgClause) GetEnvarValue() string

+ func (e *ArgClause) GetSplitEnvarValue() []string

+ func (e *ArgClause) HasEnvarValue() bool

type ArgModel

+ Envar string

type FlagClause

+ func (e *FlagClause) GetEnvarValue() string

+ func (e *FlagClause) GetSplitEnvarValue() []string

+ func (e *FlagClause) HasEnvarValue() bool

Feb 17, 2016

Changes in this version

+ var BashCompletionTemplate = ...

+ var ZshCompletionTemplate = ...

type Application

+ func (c *Application) CmdCompletion() []string

+ func (c *Application) FlagCompletion(flagName string, flagValue string) (choices []string, flagMatch bool, optionMatch bool)

type CmdClause

+ func (c *CmdClause) CmdCompletion() []string

+ func (c *CmdClause) FlagCompletion(flagName string, flagValue string) (choices []string, flagMatch bool, optionMatch bool)

type FlagClause

+ func (a *FlagClause) HintAction(action HintAction) *FlagClause

+ func (a *FlagClause) HintOptions(options ...string) *FlagClause

+ type HintAction func() []string

Jan 28, 2016

Changes in this version

type ArgClause

+ func (p *ArgClause) HexBytes() (target *[]byte)

+ func (p *ArgClause) HexBytesList() (target *[][]byte)

+ func (p *ArgClause) HexBytesListVar(target *[][]byte)

+ func (p *ArgClause) HexBytesVar(target *[]byte)

type FlagClause

+ func (p *FlagClause) HexBytes() (target *[]byte)

+ func (p *FlagClause) HexBytesList() (target *[][]byte)

+ func (p *FlagClause) HexBytesListVar(target *[][]byte)

+ func (p *FlagClause) HexBytesVar(target *[]byte)

Nov 14, 2015

Changes in this version

type Value

+ Get func() interface{}

Jan 6, 2016

Changes in this version

type Application

+ func (a Application) GetArg(name string) *ArgClause

+ func (c Application) GetCommand(name string) *CmdClause

+ func (f Application) GetFlag(name string) *FlagClause

type CmdClause

+ func (a CmdClause) GetArg(name string) *ArgClause

+ func (c CmdClause) GetCommand(name string) *CmdClause

+ func (f CmdClause) GetFlag(name string) *FlagClause

Dec 11, 2015

Changes in this version

+ var HelpCommand = CommandLine.HelpCommand

+ var HelpFlag = CommandLine.HelpFlag

+ var VersionFlag = CommandLine.VersionFlag

type Application

+ HelpCommand *CmdClause

+ HelpFlag *FlagClause

+ VersionFlag *FlagClause

+ func (a *Application) DefaultEnvars() *Application

type ArgClause

+ func (p *ArgClause) Counter() (target *int)

+ func (p *ArgClause) CounterVar(target *int)

+ func (p *ArgClause) Regexp() (target **regexp.Regexp)

+ func (p *ArgClause) RegexpList() (target *[]*regexp.Regexp)

+ func (p *ArgClause) RegexpListVar(target *[]*regexp.Regexp)

+ func (p *ArgClause) RegexpVar(target **regexp.Regexp)

+ func (p *ArgClause) ResolvedIP() (target *net.IP)

+ func (p *ArgClause) ResolvedIPList() (target *[]net.IP)

+ func (p *ArgClause) ResolvedIPListVar(target *[]net.IP)

+ func (p *ArgClause) ResolvedIPVar(target *net.IP)

type CmdClause

+ func (c *CmdClause) Alias(name string) *CmdClause

+ func (c *CmdClause) Default() *CmdClause

type CmdModel

+ Aliases []string

+ Default bool

type FlagClause

+ func (f *FlagClause) Envar(name string) *FlagClause

+ func (f *FlagClause) NoEnvar() *FlagClause

+ func (p *FlagClause) Counter() (target *int)

+ func (p *FlagClause) CounterVar(target *int)

+ func (p *FlagClause) Regexp() (target **regexp.Regexp)

+ func (p *FlagClause) RegexpList() (target *[]*regexp.Regexp)

+ func (p *FlagClause) RegexpListVar(target *[]*regexp.Regexp)

+ func (p *FlagClause) RegexpVar(target **regexp.Regexp)

+ func (p *FlagClause) ResolvedIP() (target *net.IP)

+ func (p *FlagClause) ResolvedIPList() (target *[]net.IP)

+ func (p *FlagClause) ResolvedIPListVar(target *[]net.IP)

+ func (p *FlagClause) ResolvedIPVar(target *net.IP)

type ParseContext

+ func (p *ParseContext) Push(token *Token) *Token

Sep 17, 2015

Changes in this version

+ var SeparateOptionalFlagsUsageTemplate = ...

type ArgClause

+ func (p *ArgClause) BoolList() (target *[]bool)

+ func (p *ArgClause) BoolListVar(target *[]bool)

+ func (p *ArgClause) Float32() (target *float32)

+ func (p *ArgClause) Float32List() (target *[]float32)

+ func (p *ArgClause) Float32ListVar(target *[]float32)

+ func (p *ArgClause) Float32Var(target *float32)

+ func (p *ArgClause) Float64() (target *float64)

+ func (p *ArgClause) Float64List() (target *[]float64)

+ func (p *ArgClause) Float64ListVar(target *[]float64)

+ func (p *ArgClause) Float64Var(target *float64)

+ func (p *ArgClause) Int16() (target *int16)

+ func (p *ArgClause) Int16List() (target *[]int16)

+ func (p *ArgClause) Int16ListVar(target *[]int16)

+ func (p *ArgClause) Int16Var(target *int16)

+ func (p *ArgClause) Int32() (target *int32)

+ func (p *ArgClause) Int32List() (target *[]int32)

+ func (p *ArgClause) Int32ListVar(target *[]int32)

+ func (p *ArgClause) Int32Var(target *int32)

+ func (p *ArgClause) Int8() (target *int8)

+ func (p *ArgClause) Int8List() (target *[]int8)

+ func (p *ArgClause) Int8ListVar(target *[]int8)

+ func (p *ArgClause) Int8Var(target *int8)

+ func (p *ArgClause) Ints() (target *[]int)

+ func (p *ArgClause) IntsVar(target *[]int)

+ func (p *ArgClause) Uint() (target *uint)

+ func (p *ArgClause) Uint16() (target *uint16)

+ func (p *ArgClause) Uint16List() (target *[]uint16)

+ func (p *ArgClause) Uint16ListVar(target *[]uint16)

+ func (p *ArgClause) Uint16Var(target *uint16)

+ func (p *ArgClause) Uint32() (target *uint32)

+ func (p *ArgClause) Uint32List() (target *[]uint32)

+ func (p *ArgClause) Uint32ListVar(target *[]uint32)

+ func (p *ArgClause) Uint32Var(target *uint32)

+ func (p *ArgClause) Uint8() (target *uint8)

+ func (p *ArgClause) Uint8List() (target *[]uint8)

+ func (p *ArgClause) Uint8ListVar(target *[]uint8)

+ func (p *ArgClause) Uint8Var(target *uint8)

+ func (p *ArgClause) UintVar(target *uint)

+ func (p *ArgClause) Uints() (target *[]uint)

+ func (p *ArgClause) UintsVar(target *[]uint)

type FlagClause

+ func (p *FlagClause) BoolList() (target *[]bool)

+ func (p *FlagClause) BoolListVar(target *[]bool)

+ func (p *FlagClause) Float32() (target *float32)

+ func (p *FlagClause) Float32List() (target *[]float32)

+ func (p *FlagClause) Float32ListVar(target *[]float32)

+ func (p *FlagClause) Float32Var(target *float32)

+ func (p *FlagClause) Float64() (target *float64)

+ func (p *FlagClause) Float64List() (target *[]float64)

+ func (p *FlagClause) Float64ListVar(target *[]float64)

+ func (p *FlagClause) Float64Var(target *float64)

+ func (p *FlagClause) Int16() (target *int16)

+ func (p *FlagClause) Int16List() (target *[]int16)

+ func (p *FlagClause) Int16ListVar(target *[]int16)

+ func (p *FlagClause) Int16Var(target *int16)

+ func (p *FlagClause) Int32() (target *int32)

+ func (p *FlagClause) Int32List() (target *[]int32)

+ func (p *FlagClause) Int32ListVar(target *[]int32)

+ func (p *FlagClause) Int32Var(target *int32)

+ func (p *FlagClause) Int8() (target *int8)

+ func (p *FlagClause) Int8List() (target *[]int8)

+ func (p *FlagClause) Int8ListVar(target *[]int8)

+ func (p *FlagClause) Int8Var(target *int8)

+ func (p *FlagClause) Ints() (target *[]int)

+ func (p *FlagClause) IntsVar(target *[]int)

+ func (p *FlagClause) Uint() (target *uint)

+ func (p *FlagClause) Uint16() (target *uint16)

+ func (p *FlagClause) Uint16List() (target *[]uint16)

+ func (p *FlagClause) Uint16ListVar(target *[]uint16)

+ func (p *FlagClause) Uint16Var(target *uint16)

+ func (p *FlagClause) Uint32() (target *uint32)

+ func (p *FlagClause) Uint32List() (target *[]uint32)

+ func (p *FlagClause) Uint32ListVar(target *[]uint32)

+ func (p *FlagClause) Uint32Var(target *uint32)

+ func (p *FlagClause) Uint8() (target *uint8)

+ func (p *FlagClause) Uint8List() (target *[]uint8)

+ func (p *FlagClause) Uint8ListVar(target *[]uint8)

+ func (p *FlagClause) Uint8Var(target *uint8)

+ func (p *FlagClause) UintVar(target *uint)

+ func (p *FlagClause) Uints() (target *[]uint)

+ func (p *FlagClause) UintsVar(target *[]uint)

Jul 21, 2015

Changes in this version

type Application

+ func (a *Application) Interspersed(interspersed bool) *Application

type CmdClause

+ func (c *CmdClause) Hidden() *CmdClause

type CmdModel

+ Hidden bool

May 29, 2015

Changes in this version

type ArgClause

+ func (p *ArgClause) ExistingDirs() (target *[]string)

+ func (p *ArgClause) ExistingDirsVar(target *[]string)

+ func (p *ArgClause) ExistingFiles() (target *[]string)

+ func (p *ArgClause) ExistingFilesOrDirs() (target *[]string)

+ func (p *ArgClause) ExistingFilesOrDirsVar(target *[]string)

+ func (p *ArgClause) ExistingFilesVar(target *[]string)

type FlagClause

+ func (p *FlagClause) ExistingDirs() (target *[]string)

+ func (p *FlagClause) ExistingDirsVar(target *[]string)

+ func (p *FlagClause) ExistingFiles() (target *[]string)

+ func (p *FlagClause) ExistingFilesOrDirs() (target *[]string)

+ func (p *FlagClause) ExistingFilesOrDirsVar(target *[]string)

+ func (p *FlagClause) ExistingFilesVar(target *[]string)

May 29, 2015

Changes in this version

type ArgClause

+ func (p *ArgClause) ExistingFileOrDir() (target *string)

+ func (p *ArgClause) ExistingFileOrDirVar(target *string)

type FlagClause

+ func (p *FlagClause) ExistingFileOrDir() (target *string)

+ func (p *FlagClause) ExistingFileOrDirVar(target *string)

May 26, 2015

Changes in this version

+ var LongHelpTemplate = ...

May 25, 2015

Changes in this version

type Application

+ func (a *Application) PreAction(action Action) *Application

type ArgClause

+ func (a *ArgClause) PreAction(action Action) *ArgClause

type CmdClause

+ func (c *CmdClause) PreAction(action Action) *CmdClause

type FlagClause

+ func (f *FlagClause) PreAction(action Action) *FlagClause

May 22, 2015

Changes in this version

+ var ManPageTemplate = ...

type Application

+ func (a *Application) Author(author string) *Application

type ApplicationModel

+ Author string

+ Version string

May 22, 2015

Changes in this version

+ var DefaultUsageTemplate = ...

May 22, 2015

Changes in this version

+ var CommandLine = New(filepath.Base(os.Args[0]), "")

+ var CompactUsageTemplate = ...

+ var ErrCommandNotSpecified = fmt.Errorf("command not specified")

+ var TokenEOLMarker = Token

+ var UsageTemplate = ...

+ func Errorf(format string, args ...interface{})

+ func ExpandArgsFromFile(filename string) (out []string, err error)

+ func FatalIfError(err error, prefix string)

+ func FatalUsage(format string, args ...interface{})

+ func FatalUsageContext(context *ParseContext, format string, args ...interface{})

+ func Fatalf(format string, args ...interface{})

+ func MustParse(command string, err error) string

+ func Parse() string

+ func Usage()

+ func Version(version string)

+ type Action func(*ParseContext) error

+ type Application struct

+ Help string

+ Name string

+ func New(name, help string) *Application

+ func (a *Application) Action(action Action) *Application

+ func (a *Application) Command(name, help string) *CmdClause

+ func (a *Application) Errorf(w io.Writer, format string, args ...interface{})

+ func (a *Application) FatalIfError(w io.Writer, err error, format string, args ...interface{})

+ func (a *Application) FatalUsage(w io.Writer, format string, args ...interface{})

+ func (a *Application) FatalUsageContext(w io.Writer, context *ParseContext, format string, args ...interface{})

+ func (a *Application) Fatalf(w io.Writer, format string, args ...interface{})

+ func (a *Application) Model() *ApplicationModel

+ func (a *Application) Parse(args []string) (command string, err error)

+ func (a *Application) ParseContext(args []string) (*ParseContext, error)

+ func (a *Application) Terminate(terminate func(int)) *Application

+ func (a *Application) Usage(w io.Writer, args []string)

+ func (a *Application) UsageForContext(w io.Writer, context *ParseContext) error

+ func (a *Application) UsageForContextWithTemplate(context *ParseContext, w io.Writer, indent int, tmpl string) error

+ func (a *Application) UsageTemplate(template string) *Application

+ func (a *Application) Validate(validator ApplicationValidator) *Application

+ func (a *Application) Version(version string) *Application

+ func (a *Application) Writer(w io.Writer) *Application

+ func (a Application) Arg(name, help string) *ArgClause

+ func (f Application) Flag(name, help string) *FlagClause

+ type ApplicationModel struct

+ Help string

+ Name string

+ type ApplicationValidator func(*Application) error

+ type ArgClause struct

+ func Arg(name, help string) *ArgClause

+ func (a *ArgClause) Action(dispatch Action) *ArgClause

+ func (a *ArgClause) Default(value string) *ArgClause

+ func (a *ArgClause) Model() *ArgModel

+ func (a *ArgClause) Required() *ArgClause

+ func (p *ArgClause) Bool() (target *bool)

+ func (p *ArgClause) BoolVar(target *bool)

+ func (p *ArgClause) Bytes() (target *units.Base2Bytes)

+ func (p *ArgClause) BytesVar(target *units.Base2Bytes)

+ func (p *ArgClause) Duration() (target *time.Duration)

+ func (p *ArgClause) DurationList() (target *[]time.Duration)

+ func (p *ArgClause) DurationListVar(target *[]time.Duration)

+ func (p *ArgClause) DurationVar(target *time.Duration)

+ func (p *ArgClause) Enum(options ...string) (target *string)

+ func (p *ArgClause) EnumVar(target **string, options ...string)

+ func (p *ArgClause) Enums(options ...string) (target *[]string)

+ func (p *ArgClause) EnumsVar(target *[]string, options ...string)

+ func (p *ArgClause) ExistingDir() (target *string)

+ func (p *ArgClause) ExistingDirVar(target *string)

+ func (p *ArgClause) ExistingFile() (target *string)

+ func (p *ArgClause) ExistingFileVar(target *string)

+ func (p *ArgClause) File() (target **os.File)

+ func (p *ArgClause) FileVar(target **os.File)

+ func (p *ArgClause) Float() (target *float64)

+ func (p *ArgClause) FloatVar(target *float64)

+ func (p *ArgClause) IP() (target *net.IP)

+ func (p *ArgClause) IPList() (target *[]net.IP)

+ func (p *ArgClause) IPListVar(target *[]net.IP)

+ func (p *ArgClause) IPVar(target *net.IP)

+ func (p *ArgClause) Int() (target *int)

+ func (p *ArgClause) Int64() (target *int64)

+ func (p *ArgClause) Int64List() (target *[]int64)

+ func (p *ArgClause) Int64ListVar(target *[]int64)

+ func (p *ArgClause) Int64Var(target *int64)

+ func (p *ArgClause) IntVar(target *int)

+ func (p *ArgClause) OpenFile(flag int, perm os.FileMode) (target **os.File)

+ func (p *ArgClause) OpenFileVar(target **os.File, flag int, perm os.FileMode)

+ func (p *ArgClause) SetValue(value Value)

+ func (p *ArgClause) String() (target *string)

+ func (p *ArgClause) StringMap() (target *map[string]string)

+ func (p *ArgClause) StringMapVar(target *map[string]string)

+ func (p *ArgClause) StringVar(target *string)

+ func (p *ArgClause) Strings() (target *[]string)

+ func (p *ArgClause) StringsVar(target *[]string)

+ func (p *ArgClause) TCP() (target **net.TCPAddr)

+ func (p *ArgClause) TCPList() (target *[]*net.TCPAddr)

+ func (p *ArgClause) TCPListVar(target *[]*net.TCPAddr)

+ func (p *ArgClause) TCPVar(target **net.TCPAddr)

+ func (p *ArgClause) URL() (target **url.URL)

+ func (p *ArgClause) URLList() (target *[]*url.URL)

+ func (p *ArgClause) URLListVar(target *[]*url.URL)

+ func (p *ArgClause) URLVar(target **url.URL)

+ func (p *ArgClause) Uint64() (target *uint64)

+ func (p *ArgClause) Uint64List() (target *[]uint64)

+ func (p *ArgClause) Uint64ListVar(target *[]uint64)

+ func (p *ArgClause) Uint64Var(target *uint64)

+ type ArgGroupModel struct

+ Args []*ArgModel

+ func (a *ArgGroupModel) ArgSummary() string

+ type ArgModel struct

+ Default string

+ Help string

+ Name string

+ Required bool

+ Value Value

+ func (a *ArgModel) String() string

+ type CmdClause struct

+ func Command(name, help string) *CmdClause

+ func (a CmdClause) Arg(name, help string) *ArgClause

+ func (c *CmdClause) Action(dispatch Action) *CmdClause

+ func (c *CmdClause) Command(name, help string) *CmdClause

+ func (c *CmdClause) FullCommand() string

+ func (c *CmdClause) Model() *CmdModel

+ func (c *CmdClause) Validate(validator CmdClauseValidator) *CmdClause

+ func (f CmdClause) Flag(name, help string) *FlagClause

+ type CmdClauseValidator func(*CmdClause) error

+ type CmdGroupModel struct

+ Commands []*CmdModel

+ func (c *CmdGroupModel) FlattenedCommands() (out []*CmdModel)

+ type CmdModel struct

+ Depth int

+ FullCommand string

+ Help string

+ Name string

+ func (c *CmdModel) String() string

+ type FlagClause struct

+ func Flag(name, help string) *FlagClause

+ func (f *FlagClause) Action(dispatch Action) *FlagClause

+ func (f *FlagClause) Bool() (target *bool)

+ func (f *FlagClause) Default(value string) *FlagClause

+ func (f *FlagClause) Hidden() *FlagClause

+ func (f *FlagClause) Model() *FlagModel

+ func (f *FlagClause) OverrideDefaultFromEnvar(envar string) *FlagClause

+ func (f *FlagClause) PlaceHolder(placeholder string) *FlagClause

+ func (f *FlagClause) Required() *FlagClause

+ func (f *FlagClause) Short(name byte) *FlagClause

+ func (p *FlagClause) BoolVar(target *bool)

+ func (p *FlagClause) Bytes() (target *units.Base2Bytes)

+ func (p *FlagClause) BytesVar(target *units.Base2Bytes)

+ func (p *FlagClause) Duration() (target *time.Duration)

+ func (p *FlagClause) DurationList() (target *[]time.Duration)

+ func (p *FlagClause) DurationListVar(target *[]time.Duration)

+ func (p *FlagClause) DurationVar(target *time.Duration)

+ func (p *FlagClause) Enum(options ...string) (target *string)

+ func (p *FlagClause) EnumVar(target **string, options ...string)

+ func (p *FlagClause) Enums(options ...string) (target *[]string)

+ func (p *FlagClause) EnumsVar(target *[]string, options ...string)

+ func (p *FlagClause) ExistingDir() (target *string)

+ func (p *FlagClause) ExistingDirVar(target *string)

+ func (p *FlagClause) ExistingFile() (target *string)

+ func (p *FlagClause) ExistingFileVar(target *string)

+ func (p *FlagClause) File() (target **os.File)

+ func (p *FlagClause) FileVar(target **os.File)

+ func (p *FlagClause) Float() (target *float64)

+ func (p *FlagClause) FloatVar(target *float64)

+ func (p *FlagClause) IP() (target *net.IP)

+ func (p *FlagClause) IPList() (target *[]net.IP)

+ func (p *FlagClause) IPListVar(target *[]net.IP)

+ func (p *FlagClause) IPVar(target *net.IP)

+ func (p *FlagClause) Int() (target *int)

+ func (p *FlagClause) Int64() (target *int64)

+ func (p *FlagClause) Int64List() (target *[]int64)

+ func (p *FlagClause) Int64ListVar(target *[]int64)

+ func (p *FlagClause) Int64Var(target *int64)

+ func (p *FlagClause) IntVar(target *int)

+ func (p *FlagClause) OpenFile(flag int, perm os.FileMode) (target **os.File)

+ func (p *FlagClause) OpenFileVar(target **os.File, flag int, perm os.FileMode)

+ func (p *FlagClause) SetValue(value Value)

+ func (p *FlagClause) String() (target *string)

+ func (p *FlagClause) StringMap() (target *map[string]string)

+ func (p *FlagClause) StringMapVar(target *map[string]string)

+ func (p *FlagClause) StringVar(target *string)

+ func (p *FlagClause) Strings() (target *[]string)

+ func (p *FlagClause) StringsVar(target *[]string)

+ func (p *FlagClause) TCP() (target **net.TCPAddr)

+ func (p *FlagClause) TCPList() (target *[]*net.TCPAddr)

+ func (p *FlagClause) TCPListVar(target *[]*net.TCPAddr)

+ func (p *FlagClause) TCPVar(target **net.TCPAddr)

+ func (p *FlagClause) URL() (target **url.URL)

+ func (p *FlagClause) URLList() (target *[]*url.URL)

+ func (p *FlagClause) URLListVar(target *[]*url.URL)

+ func (p *FlagClause) URLVar(target **url.URL)

+ func (p *FlagClause) Uint64() (target *uint64)

+ func (p *FlagClause) Uint64List() (target *[]uint64)

+ func (p *FlagClause) Uint64ListVar(target *[]uint64)

+ func (p *FlagClause) Uint64Var(target *uint64)

+ type FlagGroupModel struct

+ Flags []*FlagModel

+ func (f *FlagGroupModel) FlagSummary() string

+ type FlagModel struct

+ Default string

+ Envar string

+ Help string

+ Hidden bool

+ Name string

+ PlaceHolder string

+ Required bool

+ Short byte

+ Value Value

+ func (f *FlagModel) FormatPlaceHolder() string

+ func (f *FlagModel) IsBoolFlag() bool

+ func (f *FlagModel) String() string

+ type Getter interface

+ Get func() interface{}

+ type ParseContext struct

+ Elements []*ParseElement

+ SelectedCommand *CmdClause

+ func (p *ParseContext) EOL() bool

+ func (p *ParseContext) HasTrailingArgs() bool

+ func (p *ParseContext) Next() *Token

+ func (p *ParseContext) Peek() *Token

+ func (p *ParseContext) String() string

+ type ParseElement struct

+ Clause interface{}

+ Value *string

+ type Settings interface

+ SetValue func(value Value)

+ type Token struct

+ Index int

+ Type TokenType

+ Value string

+ func (t *Token) Equal(o *Token) bool

+ func (t *Token) IsEOF() bool

+ func (t *Token) IsFlag() bool

+ func (t *Token) String() string

+ type TokenType int

+ const TokenArg

+ const TokenEOL

+ const TokenError

+ const TokenLong

+ const TokenShort

+ func (t TokenType) String() string

+ type Value interface

+ Set func(string) error

+ String func() string