input - haskell hGetLines implementation -

does know can find the

hgetline :: handle -> io text 

function implementation? have implement http server in haskell has multiple subtasks. first 1 write implementation of

hgetlines :: handle -> io [text] 

function reads io channel until first empty line , lines returned list of text.

you don't need know how hgetline implemented this:

hgetlines :: handle -> io [text] hgetlines h =   line <- hgetline h   if null line     return []     else       lines <- hgetlines h       return (line:lines)