if is that "simple" why then are few? Or is because I don't know where to look at? Maybe regex are just enough and few bother to have something faster? I have

if is that "simple" why then are few? Or is because I don't know where to look at? Maybe regex are just enough and few bother to have something faster? I have found some start code at https://t0yv0.blogspot.com/2011/02/home-made-regular-expressions-in-f.html https://t0yv0.blogspot.com/2011/02/home-made-regular-express.... The thing is that I don't know how much else is necessary to have a well made library...