Very restricting library
While readline offers very good (though occasionally flawed) line editing - its macro support is lacking. Readline's many quirks, poor documentation, and inflexibility, isn't a bonus either. When using this library you should consider that you might end up spending more time working around readline's limitations than if you would have taken a couple of days to add your own input editing support. Not to mention that the library isn't installed on many system.
Very restricting library
While readline offers very good (though occasionally flawed) line editing - its macro support is lacking. Readline's many quirks, poor documentation, and inflexibility, isn't a bonus either. When using this library you should consider that you might end up spending more time working around readline's limitations than if you would have taken a couple of days to add your own input editing support. Not to mention that the library isn't installed on many system.