The maximist point of view is to wrap sed, yes. But what also came to my mind was what if he/she just wanted to only learn, I can think of no better way than to

The maximist point of view is to wrap sed, yes. But what also came to my mind was what if he/she just wanted to only learn, I can think of no better way than to try to write it 'yourself' in the language of your choice, if only as a learning exercise. All to often we in technology assume the maximist point of view, possibly completely discounting another dynamic point of view or some inspirational reasoning (of the originator). *edit: spelling