cli

type Cli interface {
	OneCmd(input string) error   // Process one command
	AddCmd(commands ...*Command) // Adds one or more commands
}

type Command struct {
	Use   string
	Flags []*CommandFlag
	Desc  Description
	Run   func(flags map[string]*ParsedCommandFlags, args []string)
}

type CommandFlag struct {
	Type  string // flag id
	Long  string // for '--flag'
	Short string // for '-f'
	Desc  Description
}

type CommandParser interface {
	ParseCommand(input string) (*ParsedCommand, error) // ParseCommand parses a string representing a command of the form <command> <flags> <args>
}

type Description struct {
	Long  string
	Short string
}

type ParsedCommand struct {
	Name  string // same as Use in Command
	Flags map[string]*ParsedCommandFlags
	Args  []string
}

type ParsedCommandFlags struct {
	Type string
	Name string
	Args string
}