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  1. module Text.XML.HXT.Arrow.Pickle

    Pickler functions for converting between user defined data types and XmlTree data. Usefull for persistent storage and retreival of arbitray data as XML documents This module is an adaptation of the pickler combinators developed by Andrew Kennedy ( https://www.microsoft.com/en-us/research/wp-content/uploads/2004/01/picklercombinators.pdf ) The difference to Kennedys approach is that the target is not a list of Chars but a list of XmlTrees. The basic picklers will convert data into XML text nodes. New are the picklers for creating elements and attributes. One extension was neccessary: The unpickling may fail. Therefore the unpickler has a Maybe result type. Failure is used to unpickle optional elements (Maybe data) and lists of arbitray length There is an example program demonstrating the use of the picklers for a none trivial data structure. (see "examples/arrows/pickle" directory)

  2. data PU a

    hxt Text.XML.HXT.Arrow.Pickle

    No documentation available.

  3. PU :: Pickler a -> Unpickler a -> Schema -> PU a

    hxt Text.XML.HXT.Arrow.Pickle

    No documentation available.

  4. data PU a

    hxt Text.XML.HXT.Arrow.Pickle.Xml

    No documentation available.

  5. PU :: Pickler a -> Unpickler a -> Schema -> PU a

    hxt Text.XML.HXT.Arrow.Pickle.Xml

    No documentation available.

  6. type Pickler a = a -> St -> St

    hxt Text.XML.HXT.Arrow.Pickle.Xml

    No documentation available.

  7. module Text.XML.HXT.Arrow.ProcessDocument

    Compound arrows for reading, parsing, validating and writing XML documents All arrows use IO and a global state for options, errorhandling, ...

  8. PLAINoutput :: XIOXoutConfig

    hxt Text.XML.HXT.Arrow.XmlState.TypeDefs

    No documentation available.

  9. PENTITY :: DTDElem

    hxt Text.XML.HXT.DOM.TypeDefs

    for parameter entity declarations

  10. PEREF :: DTDElem

    hxt Text.XML.HXT.DOM.TypeDefs

    for Parameter Entity References in DTDs

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