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  1. module Network.Wai.Parse

    Some helpers for parsing data out of a raw WAI Request.

  2. type Param = (ByteString, ByteString)

    wai-extra Network.Wai.Parse

    Post parameter name and value.

  3. ParamNameTooLong :: ByteString -> Int -> RequestParseException

    wai-extra Network.Wai.Parse

    No documentation available.

  4. data ParseRequestBodyOptions

    wai-extra Network.Wai.Parse

    A data structure that describes the behavior of the parseRequestBodyEx function.

  5. data ParseSettings

    xml-conduit Text.XML

    No documentation available.

  6. data Prologue

    xml-conduit Text.XML

    No documentation available.

  7. Prologue :: [Miscellaneous] -> Maybe Doctype -> [Miscellaneous] -> Prologue

    xml-conduit Text.XML

    No documentation available.

  8. PublicID :: Text -> Text -> ExternalID

    xml-conduit Text.XML

    No documentation available.

  9. module Text.XML.Stream.Parse

    This module provides both a native Haskell solution for parsing XML documents into a stream of events, and a set of parser combinators for dealing with a stream of events. As a simple example:

    >>> :set -XOverloadedStrings
    
    >>> import Conduit (runConduit, (.|))
    
    >>> import Data.Text (Text, unpack)
    
    >>> import Data.XML.Types (Event)
    
    >>> data Person = Person Int Text Text deriving Show
    
    >>> :{
    let parsePerson :: MonadThrow m => ConduitT Event o m (Maybe Person)
    parsePerson = tag' "person" parseAttributes $ \(age, goodAtHaskell) -> do
    name <- content
    return $ Person (read $ unpack age) name goodAtHaskell
    where parseAttributes = (,) <$> requireAttr "age" <*> requireAttr "goodAtHaskell" <* ignoreAttrs
    parsePeople :: MonadThrow m => ConduitT Event o m (Maybe [Person])
    parsePeople = tagNoAttr "people" $ many parsePerson
    inputXml = mconcat
    [ "<?xml version=\"1.0\" encoding=\"utf-8\"?>"
    , "<people>"
    , "  <person age=\"25\" goodAtHaskell=\"yes\">Michael</person>"
    , "  <person age=\"2\" goodAtHaskell=\"might become\">Eliezer</person>"
    , "</people>"
    ]
    :}
    
    >>> runConduit $ parseLBS def inputXml .| force "people required" parsePeople
    [Person 25 "Michael" "yes",Person 2 "Eliezer" "might become"]
    
    This module also supports streaming results using yield. This allows parser results to be processed using conduits while a particular parser (e.g. many) is still running. Without using streaming results, you have to wait until the parser finished before you can process the result list. Large XML files might be easier to process by using streaming results. See http://stackoverflow.com/q/21367423/2597135 for a related discussion.
    >>> import Data.Conduit.List as CL
    
    >>> :{
    let parsePeople' :: MonadThrow m => ConduitT Event Person m (Maybe ())
    parsePeople' = tagNoAttr "people" $ manyYield parsePerson
    :}
    
    >>> runConduit $ parseLBS def inputXml .| force "people required" parsePeople' .| CL.mapM_ print
    Person 25 "Michael" "yes"
    Person 2 "Eliezer" "might become"
    
    Previous versions of this module contained a number of more sophisticated functions written by Aristid Breitkreuz and Dmitry Olshansky. To keep this package simpler, those functions are being moved to a separate package. This note will be updated with the name of the package(s) when available.

  10. data ParseSettings

    xml-conduit Text.XML.Stream.Parse

    No documentation available.

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