Option Actions

Actions provided by default. More...

Classes
struct	gears::optparse::store< T >
	The default action used for values. More...
struct	gears::optparse::store_const< T >
	An action used to store constant values. More...
struct	gears::optparse::store_list< Container, Action >
	An action used to parse a list of values. More...

Detailed Description

Actions are callback mechanisms used to "parse" the key value pairs given by the command line options. For example:

Syntax	Key	Value
--key=v	"–key"	"v"
--key v	"–key"	"v"
-k=v	"-k"	"v"
-k v	"-k"	"v"
-ok=v	"-k"	"v"
-ok=v	"-o"	""

The signature of an action must be equivalent to T(const std::string& key, const std::string& value), where:

• T is the type of the #typed_value<T>.
• key is the key of the key-value pair given by the table above.
• value is the value of the key-value pair given by the table above.

The action can be a lambda, a function, a functor and any callable object that meets the requirements above.