hxt-pickle-utils (empty) → 0.1

raw patch · 5 files changed

+103/−0 lines, 5 filesdep +basedep +hxtdep +mtlsetup-changed

Dependencies added: base, hxt, mtl

Files

• LICENSE +30/−0
• README.md +4/−0
• Setup.hs +2/−0
• hxt-pickle-utils.cabal +26/−0
• src/Text/Xml/Pickle.hs +41/−0

@@ -0,0 +1,30 @@+Copyright (c) 2014, Silk++All rights reserved.++Redistribution and use in source and binary forms, with or without+modification, are permitted provided that the following conditions are met:++    * Redistributions of source code must retain the above copyright+      notice, this list of conditions and the following disclaimer.++    * Redistributions in binary form must reproduce the above+      copyright notice, this list of conditions and the following+      disclaimer in the documentation and/or other materials provided+      with the distribution.++    * Neither the name of Silk nor the names of other+      contributors may be used to endorse or promote products derived+      from this software without specific prior written permission.++THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS+"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT+LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR+A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT+OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,+DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY+THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

@@ -0,0 +1,4 @@+hxt-pickle-utils+================++Utility functions for using HXT picklers.

@@ -0,0 +1,2 @@+import Distribution.Simple+main = defaultMain

@@ -0,0 +1,26 @@+name:                hxt-pickle-utils+version:             0.1+synopsis:            Utility functions for using HXT picklers.+description:         Utility functions for using HXT picklers.+homepage:            https://github.com/silkapp/hxt-pickle-utils+license:             BSD3+license-file:        LICENSE+author:              Silk+maintainer:          code@silk.co+copyright:           (c) 2014, Silk+category:            XML+build-type:          Simple+extra-source-files:  README.md+cabal-version:       >=1.10++library+  exposed-modules:     Text.Xml.Pickle+  build-depends:       base >= 4.5 && < 4.7+                     , hxt  >= 9.2 && < 9.4+                     , mtl  >= 2.0 && < 2.2+  hs-source-dirs:      src+  default-language:    Haskell2010++source-repository head+  Type:     git+  Location: https://github.com/silkapp/hxt-pickle-utils.git

@@ -0,0 +1,41 @@+-- | Some utility functions for using hxt picklers.+module Text.Xml.Pickle+  ( toXML+  , fromXML+  , maybeFromXML+  , eitherFromXML+  ) where++import Control.Monad.Identity+import Control.Category+import Prelude hiding ((.))+import Text.XML.HXT.Core++-- | Convert a value to an XML string.+toXML :: XmlPickler p => p -> String+toXML = showPickled []++-- | Parse a string containing xml to a value. On parse failure, will+-- call `error`.+fromXML :: XmlPickler a => String -> a+fromXML = runIdentity . fromXMLM++-- | Parse a string containing xml to a value, or `Nothing` if the+-- parse fails.+maybeFromXML :: XmlPickler a => String -> Maybe a+maybeFromXML = fromXMLM++-- | Parse a string containing xml to a value, or an error message on+-- failure.+eitherFromXML :: XmlPickler a => String -> Either String a+eitherFromXML text =+  case runLA (removeAllWhiteSpace . xread) text of+    []    -> Left "Failed to parse XML in eitherFromXML."+    [x]   -> unpickleDoc' xpickle x+    (_:_) -> Left "Multiple parses in eitherFromXML."++fromXMLM :: (Monad m, XmlPickler a) => String -> m a+fromXMLM text = case runLA (removeAllWhiteSpace . xread) text of+  []    -> fail "Failed to parse XML in fromXMLM."+  [x]   -> either fail return $ unpickleDoc' xpickle x+  (_:_) -> fail "Multiple parses in fromXMLM."