Database.MongoDB.Internal.Util

Miscellaneous general functions and Show, Eq, and Ord instances for PortID

Documentation

bitOr :: Bits a => [a] -> a

bit-or all numbers together

(<.>) :: UString -> UString -> UString

Concat first and second together with period in between. Eg. "hello" <.> "world" = "hello.world"

true1 :: Label -> Document -> Bool

Is field's value a 1 or True (MongoDB use both Int and Bools for truth values). Error if field not in document or field not a Num or Bool.

hGetN :: Handle -> Int -> IO ByteString

Read N bytes from hande, blocking until all N bytes are read. If EOF is reached before N bytes then raise EOF exception.