OptionFunc is function that adheres to the Option interface.

Non-struct type implementing Signature as a flag.

ChangeDirFlag changes the current working directory to a path specified by a flag early in the parsing process, changing how other flags resolve relat

A MapperFunc is a single function that complies with the Mapper interface.

ResolverFunc is a convenience type for non-validating Resolvers.

Proxy a validatable function to the extendedValidatable interface

AfterApply is a documentation-only interface describing hooks that run after values are set.

AfterRun is a documentation-only interface describing hooks that run after Run() returns.

Application is the root of the Kong model.

BeforeApply is a documentation-only interface describing hooks that run before values are set.

BeforeReset is a documentation-only interface describing hooks that run before defaults values are applied.

BeforeResolve is a documentation-only interface describing hooks that run before resolvers are applied.

A BoolMapper is a Mapper to a value that is a boolean. This is used solely for formatting help.

BoolMapperExt allows a Mapper to dynamically determine if a value is a boolean.

BoolMapperValue may be implemented by fields in order to provide custom mappings for boolean values.

ConfigFlag uses the configured (via kong.Configuration(loader)) configuration loader to load configuration from a file specified by a flag. Use this

ConfigurationLoader is a function that builds a resolver from a file.

Context contains the current parse context.

DecodeContext is passed to a Mapper's Decode(). It contains the Value being decoded into and the Scanner to parse from.

ExitCoder is an interface that may be implemented by an error value to provide an integer exit code. The method ExitCode should return an integer that

FileContentFlag is a flag value that loads a file's contents into its value.

A Flag represents a command-line flag.

Group holds metadata about a command or flag group used when printing help.

Groups associates `group` field tags with group metadata. This option is used to simplify Kong tags while providing rich group information such as ti

HelpIndenter is used to indent new layers in the help tree.

HelpOptions for HelpPrinters.

HelpPrinter is used to print context-sensitive help.

HelpProvider can be implemented by commands/args to provide detailed help.

HelpValueFormatter is used to format the help text of flags and positional arguments.

IgnoreDefault can be implemented by flags that want to be applied before any default commands.

Kong is the main parser type.

A Mapper represents how a field is mapped from command-line values to Go. Mappers can be associated with concrete fields via pointer, reflect.Type, r

MapperValue may be implemented by fields in order to provide custom mapping. Mappers may additionally implement PlaceHolderProvider to provide custom

NamedFileContentFlag is a flag value that loads a file's contents and filename into its value.

Next should be called by Visitor to proceed with the walk. The walk will terminate if "err" is non-nil.

Node is a branch in the CLI. ie. a command or positional argument.

NodeType is an enum representing the type of a Node.

An Option applies optional changes to the Kong application.