input - haskell hGetLines implementation -

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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)

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