Hello!
Nice, Parsec 3 comes with a monad transformer [1]. So I thought I could
use IO as inner monad, and perform IO operations during parsing.
But I failed. Monad transformers still bend my mind. My problem: I
don't see a function to actually lift the IO operation into the
ParsecT. It should be
Stefan Klinger all-li...@stefan-klinger.de writes:
Hello!
Nice, Parsec 3 comes with a monad transformer [1]. So I thought I could
use IO as inner monad, and perform IO operations during parsing.
But I failed. Monad transformers still bend my mind. My problem: I
don't see a function to
On Thu, Mar 18, 2010 at 10:37 AM, Stefan Klinger
all-li...@stefan-klinger.de wrote:
Hello!
Nice, Parsec 3 comes with a monad transformer [1]. So I thought I could
use IO as inner monad, and perform IO operations during parsing.
But I failed. Monad transformers still bend my mind. My problem:
On 18 March 2010, Gregory Collins wrote with possible deletions:
ParsecT has a MonadIO instance:
class Monad m = MonadIO m where
liftIO :: IO a - m a
Thank you! I didn't see this. Great!
Kind regards,
Stefan
--
Stefan Klinger o/klettern
Hoogle is a great tool for finding haskell functions:
http://www.haskell.org/hoogle/
You can punch in the type of a function you want and it will give you a list
of functions that might do what you need.
Generalizing the types a bit usually helps. Searching for either m a - n m
a or IO a -
Job Vranish wrote:
Hoogle is a great tool for finding haskell functions:
http://www.haskell.org/hoogle/
You can punch in the type of a function you want and it will give you
a list of functions that might do what you need.
Generalizing the types a bit usually helps. Searching for either m a
On 18 March 2010 21:34, Andrew Coppin andrewcop...@btinternet.com wrote:
Is there a tool anywhere which can figure out how to construct a function
with a specific type signature? Hoogle works if the thing you seek is a
single function, but not so much if you need to throw several functions
