Move parser + parser tests out to own package.

We move some types out that are necessary as well and then
re-export and specialise them in the core Haddock.

Reason for moving out spec tests is that if we're working on the parser,
we can simply work on that and we can ignore the rest of Haddock. The
downside is that it's a little inconvenient if at the end of the day we
want to see that everything passes.

8 files changed, 1975 insertions, 0 deletions

diff --git a/haddock-library/vendor/attoparsec-0.10.4.0/Data/Attoparsec/ByteString.hs b/haddock-library/vendor/attoparsec-0.10.4.0/Data/Attoparsec/ByteString.hs
new file mode 100644
index 00000000..d2f3761c
--- /dev/null
+++ b/haddock-library/vendor/attoparsec-0.10.4.0/Data/Attoparsec/ByteString.hs
@@ -0,0 +1,205 @@
+-- |
+-- Module      :  Data.Attoparsec.ByteString
+-- Copyright   :  Bryan O'Sullivan 2007-2011
+-- License     :  BSD3
+--
+-- Maintainer  :  bos@serpentine.com
+-- Stability   :  experimental
+-- Portability :  unknown
+--
+-- Simple, efficient combinator parsing for 'B.ByteString' strings,
+-- loosely based on the Parsec library.
+
+module Data.Attoparsec.ByteString
+    (
+    -- * Differences from Parsec
+    -- $parsec
+
+    -- * Incremental input
+    -- $incremental
+
+    -- * Performance considerations
+    -- $performance
+
+    -- * Parser types
+      I.Parser
+    , Result
+    , T.IResult(..)
+    , I.compareResults
+
+    -- * Running parsers
+    , parse
+    , feed
+    , I.parseOnly
+    , parseWith
+    , parseTest
+
+    -- ** Result conversion
+    , maybeResult
+    , eitherResult
+
+    -- * Combinators
+    , (I.<?>)
+    , I.try
+    , module Data.Attoparsec.Combinator
+
+    -- * Parsing individual bytes
+    , I.word8
+    , I.anyWord8
+    , I.notWord8
+    , I.peekWord8
+    , I.satisfy
+    , I.satisfyWith
+    , I.skip
+
+    -- ** Byte classes
+    , I.inClass
+    , I.notInClass
+
+    -- * Efficient string handling
+    , I.string
+    , I.skipWhile
+    , I.take
+    , I.scan
+    , I.takeWhile
+    , I.takeWhile1
+    , I.takeTill
+
+    -- ** Consume all remaining input
+    , I.takeByteString
+    , I.takeLazyByteString
+
+    -- * State observation and manipulation functions
+    , I.endOfInput
+    , I.atEnd
+    ) where
+
+import Data.Attoparsec.Combinator
+import qualified Data.Attoparsec.ByteString.Internal as I
+import qualified Data.Attoparsec.Internal as I
+import qualified Data.ByteString as B
+import Data.Attoparsec.ByteString.Internal (Result, parse)
+import qualified Data.Attoparsec.Internal.Types as T
+
+-- $parsec
+--
+-- Compared to Parsec 3, Attoparsec makes several tradeoffs.  It is
+-- not intended for, or ideal for, all possible uses.
+--
+-- * While Attoparsec can consume input incrementally, Parsec cannot.
+--   Incremental input is a huge deal for efficient and secure network
+--   and system programming, since it gives much more control to users
+--   of the library over matters such as resource usage and the I/O
+--   model to use.
+--
+-- * Much of the performance advantage of Attoparsec is gained via
+--   high-performance parsers such as 'I.takeWhile' and 'I.string'.
+--   If you use complicated combinators that return lists of bytes or
+--   characters, there is less performance difference between the two
+--   libraries.
+--
+-- * Unlike Parsec 3, Attoparsec does not support being used as a
+--   monad transformer.
+--
+-- * Attoparsec is specialised to deal only with strict 'B.ByteString'
+--   input.  Efficiency concerns rule out both lists and lazy
+--   bytestrings.  The usual use for lazy bytestrings would be to
+--   allow consumption of very large input without a large footprint.
+--   For this need, Attoparsec's incremental input provides an
+--   excellent substitute, with much more control over when input
+--   takes place.  If you must use lazy bytestrings, see the 'Lazy'
+--   module, which feeds lazy chunks to a regular parser.
+--
+-- * Parsec parsers can produce more helpful error messages than
+--   Attoparsec parsers.  This is a matter of focus: Attoparsec avoids
+--   the extra book-keeping in favour of higher performance.
+
+-- $incremental
+--
+-- Attoparsec supports incremental input, meaning that you can feed it
+-- a bytestring that represents only part of the expected total amount
+-- of data to parse. If your parser reaches the end of a fragment of
+-- input and could consume more input, it will suspend parsing and
+-- return a 'T.Partial' continuation.
+--
+-- Supplying the 'T.Partial' continuation with another bytestring will
+-- resume parsing at the point where it was suspended. You must be
+-- prepared for the result of the resumed parse to be another
+-- 'T.Partial' continuation.
+--
+-- To indicate that you have no more input, supply the 'T.Partial'
+-- continuation with an empty bytestring.
+--
+-- Remember that some parsing combinators will not return a result
+-- until they reach the end of input.  They may thus cause 'T.Partial'
+-- results to be returned.
+--
+-- If you do not need support for incremental input, consider using
+-- the 'I.parseOnly' function to run your parser.  It will never
+-- prompt for more input.
+
+-- $performance
+--
+-- If you write an Attoparsec-based parser carefully, it can be
+-- realistic to expect it to perform within a factor of 2 of a
+-- hand-rolled C parser (measuring megabytes parsed per second).
+--
+-- To actually achieve high performance, there are a few guidelines
+-- that it is useful to follow.
+--
+-- Use the 'B.ByteString'-oriented parsers whenever possible,
+-- e.g. 'I.takeWhile1' instead of 'many1' 'I.anyWord8'.  There is
+-- about a factor of 100 difference in performance between the two
+-- kinds of parser.
+--
+-- For very simple byte-testing predicates, write them by hand instead
+-- of using 'I.inClass' or 'I.notInClass'.  For instance, both of
+-- these predicates test for an end-of-line byte, but the first is
+-- much faster than the second:
+--
+-- >endOfLine_fast w = w == 13 || w == 10
+-- >endOfLine_slow   = inClass "\r\n"
+--
+-- Make active use of benchmarking and profiling tools to measure,
+-- find the problems with, and improve the performance of your parser.
+
+-- | If a parser has returned a 'T.Partial' result, supply it with more
+-- input.
+feed :: Result r -> B.ByteString -> Result r
+feed f@(T.Fail _ _ _) _ = f
+feed (T.Partial k) d    = k d
+feed (T.Done bs r) d    = T.Done (B.append bs d) r
+{-# INLINE feed #-}
+
+-- | Run a parser and print its result to standard output.
+parseTest :: (Show a) => I.Parser a -> B.ByteString -> IO ()
+parseTest p s = print (parse p s)
+
+-- | Run a parser with an initial input string, and a monadic action
+-- that can supply more input if needed.
+parseWith :: Monad m =>
+             (m B.ByteString)
+          -- ^ An action that will be executed to provide the parser
+          -- with more input, if necessary.  The action must return an
+          -- 'B.empty' string when there is no more input available.
+          -> I.Parser a
+          -> B.ByteString
+          -- ^ Initial input for the parser.
+          -> m (Result a)
+parseWith refill p s = step $ parse p s
+  where step (T.Partial k) = (step . k) =<< refill
+        step r             = return r
+{-# INLINE parseWith #-}
+
+-- | Convert a 'Result' value to a 'Maybe' value. A 'T.Partial' result
+-- is treated as failure.
+maybeResult :: Result r -> Maybe r
+maybeResult (T.Done _ r) = Just r
+maybeResult _            = Nothing
+
+-- | Convert a 'Result' value to an 'Either' value. A 'T.Partial'
+-- result is treated as failure.
+eitherResult :: Result r -> Either String r
+eitherResult (T.Done _ r)     = Right r
+eitherResult (T.Fail _ _ msg) = Left msg
+eitherResult _                = Left "Result: incomplete input"
diff --git a/haddock-library/vendor/attoparsec-0.10.4.0/Data/Attoparsec/ByteString/Char8.hs b/haddock-library/vendor/attoparsec-0.10.4.0/Data/Attoparsec/ByteString/Char8.hs
new file mode 100644
index 00000000..3bbe51f0
--- /dev/null
+++ b/haddock-library/vendor/attoparsec-0.10.4.0/Data/Attoparsec/ByteString/Char8.hs
@@ -0,0 +1,549 @@
+{-# LANGUAGE BangPatterns, FlexibleInstances, TypeFamilies,
+    TypeSynonymInstances, GADTs #-}
+{-# OPTIONS_GHC -fno-warn-orphans #-}
+
+-- |
+-- Module      :  Data.Attoparsec.ByteString.Char8
+-- Copyright   :  Bryan O'Sullivan 2007-2011
+-- License     :  BSD3
+--
+-- Maintainer  :  bos@serpentine.com
+-- Stability   :  experimental
+-- Portability :  unknown
+--
+-- Simple, efficient, character-oriented combinator parsing for
+-- 'B.ByteString' strings, loosely based on the Parsec library.
+
+module Data.Attoparsec.ByteString.Char8
+    (
+    -- * Character encodings
+    -- $encodings
+
+    -- * Parser types
+      Parser
+    , A.Result
+    , A.IResult(..)
+    , I.compareResults
+
+    -- * Running parsers
+    , A.parse
+    , A.feed
+    , A.parseOnly
+    , A.parseTest
+    , A.parseWith
+
+    -- ** Result conversion
+    , A.maybeResult
+    , A.eitherResult
+
+    -- * Combinators
+    , (I.<?>)
+    , I.try
+    , module Data.Attoparsec.Combinator
+
+    -- * Parsing individual characters
+    , char
+    , char8
+    , anyChar
+    , notChar
+    , peekChar
+    , satisfy
+
+    -- ** Special character parsers
+    , digit
+    , letter_iso8859_15
+    , letter_ascii
+    , space
+
+    -- ** Fast predicates
+    , isDigit
+    , isDigit_w8
+    , isAlpha_iso8859_15
+    , isAlpha_ascii
+    , isSpace
+    , isSpace_w8
+
+    -- *** Character classes
+    , inClass
+    , notInClass
+
+    -- * Efficient string handling
+    , I.string
+    , stringCI
+    , skipSpace
+    , skipWhile
+    , I.take
+    , scan
+    , takeWhile
+    , takeWhile1
+    , takeTill
+
+    -- ** String combinators
+    -- $specalt
+    , (.*>)
+    , (<*.)
+
+    -- ** Consume all remaining input
+    , I.takeByteString
+    , I.takeLazyByteString
+
+    -- * Text parsing
+    , I.endOfLine
+    , isEndOfLine
+    , isHorizontalSpace
+
+    -- * Numeric parsers
+    , decimal
+    , hexadecimal
+    , signed
+    , double
+    , Number(..)
+    , number
+    , rational
+
+    -- * State observation and manipulation functions
+    , I.endOfInput
+    , I.atEnd
+    ) where
+
+import Control.Applicative ((*>), (<*), (<$>), (<|>))
+import Data.Attoparsec.ByteString.FastSet (charClass, memberChar)
+import Data.Attoparsec.ByteString.Internal (Parser, (<?>))
+import Data.Attoparsec.Combinator
+import Data.Attoparsec.Number (Number(..))
+import Data.Bits (Bits, (.|.), shiftL)
+import Data.ByteString.Internal (c2w, w2c)
+import Data.Int (Int8, Int16, Int32, Int64)
+import Data.Ratio ((%))
+import Data.String (IsString(..))
+import Data.Word (Word8, Word16, Word32, Word64, Word)
+import Prelude hiding (takeWhile)
+import qualified Data.Attoparsec.ByteString as A
+import qualified Data.Attoparsec.ByteString.Internal as I
+import qualified Data.Attoparsec.Internal as I
+import qualified Data.ByteString as B8
+import qualified Data.ByteString.Char8 as B
+
+instance (a ~ B.ByteString) => IsString (Parser a) where
+    fromString = I.string . B.pack
+
+-- $encodings
+--
+-- This module is intended for parsing text that is
+-- represented using an 8-bit character set, e.g. ASCII or
+-- ISO-8859-15.  It /does not/ make any attempt to deal with character
+-- encodings, multibyte characters, or wide characters.  In
+-- particular, all attempts to use characters above code point U+00FF
+-- will give wrong answers.
+--
+-- Code points below U+0100 are simply translated to and from their
+-- numeric values, so e.g. the code point U+00A4 becomes the byte
+-- @0xA4@ (which is the Euro symbol in ISO-8859-15, but the generic
+-- currency sign in ISO-8859-1).  Haskell 'Char' values above U+00FF
+-- are truncated, so e.g. U+1D6B7 is truncated to the byte @0xB7@.
+
+-- ASCII-specific but fast, oh yes.
+toLower :: Word8 -> Word8
+toLower w | w >= 65 && w <= 90 = w + 32
+          | otherwise          = w
+
+-- | Satisfy a literal string, ignoring case.
+stringCI :: B.ByteString -> Parser B.ByteString
+stringCI = I.stringTransform (B8.map toLower)
+{-# INLINE stringCI #-}
+
+-- | Consume input as long as the predicate returns 'True', and return
+-- the consumed input.
+--
+-- This parser requires the predicate to succeed on at least one byte
+-- of input: it will fail if the predicate never returns 'True' or if
+-- there is no input left.
+takeWhile1 :: (Char -> Bool) -> Parser B.ByteString
+takeWhile1 p = I.takeWhile1 (p . w2c)
+{-# INLINE takeWhile1 #-}
+
+-- | The parser @satisfy p@ succeeds for any byte for which the
+-- predicate @p@ returns 'True'. Returns the byte that is actually
+-- parsed.
+--
+-- >digit = satisfy isDigit
+-- >    where isDigit c = c >= '0' && c <= '9'
+satisfy :: (Char -> Bool) -> Parser Char
+satisfy = I.satisfyWith w2c
+{-# INLINE satisfy #-}
+
+-- | Match a letter, in the ISO-8859-15 encoding.
+letter_iso8859_15 :: Parser Char
+letter_iso8859_15 = satisfy isAlpha_iso8859_15 <?> "letter_iso8859_15"
+{-# INLINE letter_iso8859_15 #-}
+
+-- | Match a letter, in the ASCII encoding.
+letter_ascii :: Parser Char
+letter_ascii = satisfy isAlpha_ascii <?> "letter_ascii"
+{-# INLINE letter_ascii #-}
+
+-- | A fast alphabetic predicate for the ISO-8859-15 encoding
+--
+-- /Note/: For all character encodings other than ISO-8859-15, and
+-- almost all Unicode code points above U+00A3, this predicate gives
+-- /wrong answers/.
+isAlpha_iso8859_15 :: Char -> Bool
+isAlpha_iso8859_15 c = (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') ||
+                       (c >= '\166' && moby c)
+  where moby = notInClass "\167\169\171-\179\182\183\185\187\191\215\247"
+        {-# NOINLINE moby #-}
+{-# INLINE isAlpha_iso8859_15 #-}
+
+-- | A fast alphabetic predicate for the ASCII encoding
+--
+-- /Note/: For all character encodings other than ASCII, and
+-- almost all Unicode code points above U+007F, this predicate gives
+-- /wrong answers/.
+isAlpha_ascii :: Char -> Bool
+isAlpha_ascii c = (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z')
+{-# INLINE isAlpha_ascii #-}
+
+-- | Parse a single digit.
+digit :: Parser Char
+digit = satisfy isDigit <?> "digit"
+{-# INLINE digit #-}
+
+-- | A fast digit predicate.
+isDigit :: Char -> Bool
+isDigit c = c >= '0' && c <= '9'
+{-# INLINE isDigit #-}
+
+-- | A fast digit predicate.
+isDigit_w8 :: Word8 -> Bool
+isDigit_w8 w = w >= 48 && w <= 57
+{-# INLINE isDigit_w8 #-}
+
+-- | Match any character.
+anyChar :: Parser Char
+anyChar = satisfy $ const True
+{-# INLINE anyChar #-}
+
+-- | Match any character. Returns 'Nothing' if end of input has been
+-- reached. Does not consume any input.
+--
+-- /Note/: Because this parser does not fail, do not use it with
+-- combinators such as 'many', because such parsers loop until a
+-- failure occurs.  Careless use will thus result in an infinite loop.
+peekChar :: Parser (Maybe Char)
+peekChar = (fmap w2c) `fmap` I.peekWord8
+{-# INLINE peekChar #-}
+
+-- | Fast predicate for matching ASCII space characters.
+--
+-- /Note/: This predicate only gives correct answers for the ASCII
+-- encoding.  For instance, it does not recognise U+00A0 (non-breaking
+-- space) as a space character, even though it is a valid ISO-8859-15
+-- byte. For a Unicode-aware and only slightly slower predicate,
+-- use 'Data.Char.isSpace'
+isSpace :: Char -> Bool
+isSpace c = (c == ' ') || ('\t' <= c && c <= '\r')
+{-# INLINE isSpace #-}
+
+-- | Fast 'Word8' predicate for matching ASCII space characters.
+isSpace_w8 :: Word8 -> Bool
+isSpace_w8 w = (w == 32) || (9 <= w && w <= 13)
+{-# INLINE isSpace_w8 #-}
+
+
+-- | Parse a space character.
+--
+-- /Note/: This parser only gives correct answers for the ASCII
+-- encoding.  For instance, it does not recognise U+00A0 (non-breaking
+-- space) as a space character, even though it is a valid ISO-8859-15
+-- byte.
+space :: Parser Char
+space = satisfy isSpace <?> "space"
+{-# INLINE space #-}
+
+-- | Match a specific character.
+char :: Char -> Parser Char
+char c = satisfy (== c) <?> [c]
+{-# INLINE char #-}
+
+-- | Match a specific character, but return its 'Word8' value.
+char8 :: Char -> Parser Word8
+char8 c = I.satisfy (== c2w c) <?> [c]
+{-# INLINE char8 #-}
+
+-- | Match any character except the given one.
+notChar :: Char -> Parser Char
+notChar c = satisfy (/= c) <?> "not " ++ [c]
+{-# INLINE notChar #-}
+
+-- | Match any character in a set.
+--
+-- >vowel = inClass "aeiou"
+--
+-- Range notation is supported.
+--
+-- >halfAlphabet = inClass "a-nA-N"
+--
+-- To add a literal \'-\' to a set, place it at the beginning or end
+-- of the string.
+inClass :: String -> Char -> Bool
+inClass s = (`memberChar` mySet)
+    where mySet = charClass s
+{-# INLINE inClass #-}
+
+-- | Match any character not in a set.
+notInClass :: String -> Char -> Bool
+notInClass s = not . inClass s
+{-# INLINE notInClass #-}
+
+-- | Consume input as long as the predicate returns 'True', and return
+-- the consumed input.
+--
+-- This parser does not fail.  It will return an empty string if the
+-- predicate returns 'False' on the first byte of input.
+--
+-- /Note/: Because this parser does not fail, do not use it with
+-- combinators such as 'many', because such parsers loop until a
+-- failure occurs.  Careless use will thus result in an infinite loop.
+takeWhile :: (Char -> Bool) -> Parser B.ByteString
+takeWhile p = I.takeWhile (p . w2c)
+{-# INLINE takeWhile #-}
+
+-- | A stateful scanner.  The predicate consumes and transforms a
+-- state argument, and each transformed state is passed to successive
+-- invocations of the predicate on each byte of the input until one
+-- returns 'Nothing' or the input ends.
+--
+-- This parser does not fail.  It will return an empty string if the
+-- predicate returns 'Nothing' on the first byte of input.
+--
+-- /Note/: Because this parser does not fail, do not use it with
+-- combinators such as 'many', because such parsers loop until a
+-- failure occurs.  Careless use will thus result in an infinite loop.
+scan :: s -> (s -> Char -> Maybe s) -> Parser B.ByteString
+scan s0 p = I.scan s0 (\s -> p s . w2c)
+{-# INLINE scan #-}
+
+-- | Consume input as long as the predicate returns 'False'
+-- (i.e. until it returns 'True'), and return the consumed input.
+--
+-- This parser does not fail.  It will return an empty string if the
+-- predicate returns 'True' on the first byte of input.
+--
+-- /Note/: Because this parser does not fail, do not use it with
+-- combinators such as 'many', because such parsers loop until a
+-- failure occurs.  Careless use will thus result in an infinite loop.
+takeTill :: (Char -> Bool) -> Parser B.ByteString
+takeTill p = I.takeTill (p . w2c)
+{-# INLINE takeTill #-}
+
+-- | Skip past input for as long as the predicate returns 'True'.
+skipWhile :: (Char -> Bool) -> Parser ()
+skipWhile p = I.skipWhile (p . w2c)
+{-# INLINE skipWhile #-}
+
+-- | Skip over white space.
+skipSpace :: Parser ()
+skipSpace = I.skipWhile isSpace_w8
+{-# INLINE skipSpace #-}
+
+-- $specalt
+--
+-- The '.*>' and '<*.' combinators are intended for use with the
+-- @OverloadedStrings@ language extension.  They simplify the common
+-- task of matching a statically known string, then immediately
+-- parsing something else.
+--
+-- An example makes this easier to understand:
+--
+-- @{-\# LANGUAGE OverloadedStrings #-}
+--
+-- shoeSize = \"Shoe size: \" '.*>' 'decimal'
+-- @
+--
+-- If we were to try to use '*>' above instead, the type checker would
+-- not be able to tell which 'IsString' instance to use for the text
+-- in quotes.  We would have to be explicit, using either a type
+-- signature or the 'I.string' parser.
+
+-- | Type-specialized version of '*>' for 'B.ByteString'.
+(.*>) :: B.ByteString -> Parser a -> Parser a
+s .*> f = I.string s *> f
+
+-- | Type-specialized version of '<*' for 'B.ByteString'.
+(<*.) :: Parser a -> B.ByteString -> Parser a
+f <*. s = f <* I.string s
+
+-- | A predicate that matches either a carriage return @\'\\r\'@ or
+-- newline @\'\\n\'@ character.
+isEndOfLine :: Word8 -> Bool
+isEndOfLine w = w == 13 || w == 10
+{-# INLINE isEndOfLine #-}
+
+-- | A predicate that matches either a space @\' \'@ or horizontal tab
+-- @\'\\t\'@ character.
+isHorizontalSpace :: Word8 -> Bool
+isHorizontalSpace w = w == 32 || w == 9
+{-# INLINE isHorizontalSpace #-}
+
+-- | Parse and decode an unsigned hexadecimal number.  The hex digits
+-- @\'a\'@ through @\'f\'@ may be upper or lower case.
+--
+-- This parser does not accept a leading @\"0x\"@ string.
+hexadecimal :: (Integral a, Bits a) => Parser a
+hexadecimal = B8.foldl' step 0 `fmap` I.takeWhile1 isHexDigit
+  where
+    isHexDigit w = (w >= 48 && w <= 57) ||
+                   (w >= 97 && w <= 102) ||
+                   (w >= 65 && w <= 70)
+    step a w | w >= 48 && w <= 57  = (a `shiftL` 4) .|. fromIntegral (w - 48)
+             | w >= 97             = (a `shiftL` 4) .|. fromIntegral (w - 87)
+             | otherwise           = (a `shiftL` 4) .|. fromIntegral (w - 55)
+{-# SPECIALISE hexadecimal :: Parser Int #-}
+{-# SPECIALISE hexadecimal :: Parser Int8 #-}
+{-# SPECIALISE hexadecimal :: Parser Int16 #-}
+{-# SPECIALISE hexadecimal :: Parser Int32 #-}
+{-# SPECIALISE hexadecimal :: Parser Int64 #-}
+{-# SPECIALISE hexadecimal :: Parser Integer #-}
+{-# SPECIALISE hexadecimal :: Parser Word #-}
+{-# SPECIALISE hexadecimal :: Parser Word8 #-}
+{-# SPECIALISE hexadecimal :: Parser Word16 #-}
+{-# SPECIALISE hexadecimal :: Parser Word32 #-}
+{-# SPECIALISE hexadecimal :: Parser Word64 #-}
+
+-- | Parse and decode an unsigned decimal number.
+decimal :: Integral a => Parser a
+decimal = B8.foldl' step 0 `fmap` I.takeWhile1 isDig
+  where isDig w  = w >= 48 && w <= 57
+        step a w = a * 10 + fromIntegral (w - 48)
+{-# SPECIALISE decimal :: Parser Int #-}
+{-# SPECIALISE decimal :: Parser Int8 #-}
+{-# SPECIALISE decimal :: Parser Int16 #-}
+{-# SPECIALISE decimal :: Parser Int32 #-}
+{-# SPECIALISE decimal :: Parser Int64 #-}
+{-# SPECIALISE decimal :: Parser Integer #-}
+{-# SPECIALISE decimal :: Parser Word #-}
+{-# SPECIALISE decimal :: Parser Word8 #-}
+{-# SPECIALISE decimal :: Parser Word16 #-}
+{-# SPECIALISE decimal :: Parser Word32 #-}
+{-# SPECIALISE decimal :: Parser Word64 #-}
+
+-- | Parse a number with an optional leading @\'+\'@ or @\'-\'@ sign
+-- character.
+signed :: Num a => Parser a -> Parser a
+{-# SPECIALISE signed :: Parser Int -> Parser Int #-}
+{-# SPECIALISE signed :: Parser Int8 -> Parser Int8 #-}
+{-# SPECIALISE signed :: Parser Int16 -> Parser Int16 #-}
+{-# SPECIALISE signed :: Parser Int32 -> Parser Int32 #-}
+{-# SPECIALISE signed :: Parser Int64 -> Parser Int64 #-}
+{-# SPECIALISE signed :: Parser Integer -> Parser Integer #-}
+signed p = (negate <$> (char8 '-' *> p))
+       <|> (char8 '+' *> p)
+       <|> p
+
+-- | Parse a rational number.
+--
+-- This parser accepts an optional leading sign character, followed by
+-- at least one decimal digit.  The syntax similar to that accepted by
+-- the 'read' function, with the exception that a trailing @\'.\'@ or
+-- @\'e\'@ /not/ followed by a number is not consumed.
+--
+-- Examples with behaviour identical to 'read', if you feed an empty
+-- continuation to the first result:
+--
+-- >rational "3"     == Done 3.0 ""
+-- >rational "3.1"   == Done 3.1 ""
+-- >rational "3e4"   == Done 30000.0 ""
+-- >rational "3.1e4" == Done 31000.0, ""
+--
+-- Examples with behaviour identical to 'read':
+--
+-- >rational ".3"    == Fail "input does not start with a digit"
+-- >rational "e3"    == Fail "input does not start with a digit"
+--
+-- Examples of differences from 'read':
+--
+-- >rational "3.foo" == Done 3.0 ".foo"
+-- >rational "3e"    == Done 3.0 "e"
+--
+-- This function does not accept string representations of \"NaN\" or
+-- \"Infinity\".
+rational :: Fractional a => Parser a
+{-# SPECIALIZE rational :: Parser Double #-}
+{-# SPECIALIZE rational :: Parser Float #-}
+{-# SPECIALIZE rational :: Parser Rational #-}
+rational = floaty $ \real frac fracDenom -> fromRational $
+                     real % 1 + frac % fracDenom
+
+-- | Parse a rational number.
+--
+-- The syntax accepted by this parser is the same as for 'rational'.
+--
+-- /Note/: This function is almost ten times faster than 'rational',
+-- but is slightly less accurate.
+--
+-- The 'Double' type supports about 16 decimal places of accuracy.
+-- For 94.2% of numbers, this function and 'rational' give identical
+-- results, but for the remaining 5.8%, this function loses precision
+-- around the 15th decimal place.  For 0.001% of numbers, this
+-- function will lose precision at the 13th or 14th decimal place.
+--
+-- This function does not accept string representations of \"NaN\" or
+-- \"Infinity\".
+double :: Parser Double
+double = floaty asDouble
+
+asDouble :: Integer -> Integer -> Integer -> Double
+asDouble real frac fracDenom =
+    fromIntegral real + fromIntegral frac / fromIntegral fracDenom
+{-# INLINE asDouble #-}
+
+-- | Parse a number, attempting to preserve both speed and precision.
+--
+-- The syntax accepted by this parser is the same as for 'rational'.
+--
+-- /Note/: This function is almost ten times faster than 'rational'.
+-- On integral inputs, it gives perfectly accurate answers, and on
+-- floating point inputs, it is slightly less accurate than
+-- 'rational'.
+--
+-- This function does not accept string representations of \"NaN\" or
+-- \"Infinity\".
+number :: Parser Number
+number = floaty $ \real frac fracDenom ->
+         if frac == 0 && fracDenom == 0
+         then I real
+         else D (asDouble real frac fracDenom)
+{-# INLINE number #-}
+
+data T = T !Integer !Int
+
+floaty :: Fractional a => (Integer -> Integer -> Integer -> a) -> Parser a
+{-# INLINE floaty #-}
+floaty f = do
+  let minus = 45
+      plus  = 43
+  !positive <- ((== plus) <$> I.satisfy (\c -> c == minus || c == plus)) <|>
+               return True
+  real <- decimal
+  let tryFraction = do
+        let dot = 46
+        _ <- I.satisfy (==dot)
+        ds <- I.takeWhile isDigit_w8
+        case I.parseOnly decimal ds of
+                Right n -> return $ T n (B.length ds)
+                _       -> fail "no digits after decimal"
+  T fraction fracDigits <- tryFraction <|> return (T 0 0)
+  let littleE = 101
+      bigE    = 69
+      e w = w == littleE || w == bigE
+  power <- (I.satisfy e *> signed decimal) <|> return (0::Int)
+  let n = if fracDigits == 0
+          then if power == 0
+               then fromIntegral real
+               else fromIntegral real * (10 ^^ power)
+          else if power == 0
+               then f real fraction (10 ^ fracDigits)
+               else f real fraction (10 ^ fracDigits) * (10 ^^ power)
+  return $ if positive
+           then n
+           else -n
diff --git a/haddock-library/vendor/attoparsec-0.10.4.0/Data/Attoparsec/ByteString/FastSet.hs b/haddock-library/vendor/attoparsec-0.10.4.0/Data/Attoparsec/ByteString/FastSet.hs
new file mode 100644
index 00000000..73d02056
--- /dev/null
+++ b/haddock-library/vendor/attoparsec-0.10.4.0/Data/Attoparsec/ByteString/FastSet.hs
@@ -0,0 +1,115 @@
+{-# LANGUAGE BangPatterns, MagicHash #-}
+
+-----------------------------------------------------------------------------
+-- |
+-- Module      :  Data.Attoparsec.ByteString.FastSet
+-- Copyright   :  Bryan O'Sullivan 2008
+-- License     :  BSD3
+--
+-- Maintainer  :  bos@serpentine.com
+-- Stability   :  experimental
+-- Portability :  unknown
+--
+-- Fast set membership tests for 'Word8' and 8-bit 'Char' values.  The
+-- set representation is unboxed for efficiency.  For small sets, we
+-- test for membership using a binary search.  For larger sets, we use
+-- a lookup table.
+--
+-----------------------------------------------------------------------------
+module Data.Attoparsec.ByteString.FastSet
+    (
+    -- * Data type
+      FastSet
+    -- * Construction
+    , fromList
+    , set
+    -- * Lookup
+    , memberChar
+    , memberWord8
+    -- * Debugging
+    , fromSet
+    -- * Handy interface
+    , charClass
+    ) where
+
+import Data.Bits ((.&.), (.|.))
+import Foreign.Storable (peekByteOff, pokeByteOff)
+import GHC.Base (Int(I#), iShiftRA#, narrow8Word#, shiftL#)
+import GHC.Word (Word8(W8#))
+import qualified Data.ByteString as B
+import qualified Data.ByteString.Char8 as B8
+import qualified Data.ByteString.Internal as I
+import qualified Data.ByteString.Unsafe as U
+
+data FastSet = Sorted { fromSet :: !B.ByteString }
+             | Table  { fromSet :: !B.ByteString }
+    deriving (Eq, Ord)
+
+instance Show FastSet where
+    show (Sorted s) = "FastSet Sorted " ++ show (B8.unpack s)
+    show (Table _) = "FastSet Table"
+
+-- | The lower bound on the size of a lookup table.  We choose this to
+-- balance table density against performance.
+tableCutoff :: Int
+tableCutoff = 8
+
+-- | Create a set.
+set :: B.ByteString -> FastSet
+set s | B.length s < tableCutoff = Sorted . B.sort $ s
+      | otherwise                = Table . mkTable $ s
+
+fromList :: [Word8] -> FastSet
+fromList = set . B.pack
+
+data I = I {-# UNPACK #-} !Int {-# UNPACK #-} !Word8
+
+shiftR :: Int -> Int -> Int
+shiftR (I# x#) (I# i#) = I# (x# `iShiftRA#` i#)
+
+shiftL :: Word8 -> Int -> Word8
+shiftL (W8# x#) (I# i#) = W8# (narrow8Word# (x# `shiftL#` i#))
+
+index :: Int -> I
+index i = I (i `shiftR` 3) (1 `shiftL` (i .&. 7))
+{-# INLINE index #-}
+
+-- | Check the set for membership.
+memberWord8 :: Word8 -> FastSet -> Bool
+memberWord8 w (Table t)  =
+    let I byte bit = index (fromIntegral w)
+    in  U.unsafeIndex t byte .&. bit /= 0
+memberWord8 w (Sorted s) = search 0 (B.length s - 1)
+    where search lo hi
+              | hi < lo = False
+              | otherwise =
+                  let mid = (lo + hi) `div` 2
+                  in case compare w (U.unsafeIndex s mid) of
+                       GT -> search (mid + 1) hi
+                       LT -> search lo (mid - 1)
+                       _ -> True
+
+-- | Check the set for membership.  Only works with 8-bit characters:
+-- characters above code point 255 will give wrong answers.
+memberChar :: Char -> FastSet -> Bool
+memberChar c = memberWord8 (I.c2w c)
+{-# INLINE memberChar #-}
+
+mkTable :: B.ByteString -> B.ByteString
+mkTable s = I.unsafeCreate 32 $ \t -> do
+            _ <- I.memset t 0 32
+            U.unsafeUseAsCStringLen s $ \(p, l) ->
+              let loop n | n == l = return ()
+                         | otherwise = do
+                    c <- peekByteOff p n :: IO Word8
+                    let I byte bit = index (fromIntegral c)
+                    prev <- peekByteOff t byte :: IO Word8
+                    pokeByteOff t byte (prev .|. bit)
+                    loop (n + 1)
+              in loop 0
+
+charClass :: String -> FastSet
+charClass = set . B8.pack . go
+    where go (a:'-':b:xs) = [a..b] ++ go xs
+          go (x:xs) = x : go xs
+          go _ = ""
diff --git a/haddock-library/vendor/attoparsec-0.10.4.0/Data/Attoparsec/ByteString/Internal.hs b/haddock-library/vendor/attoparsec-0.10.4.0/Data/Attoparsec/ByteString/Internal.hs
new file mode 100644
index 00000000..b3699728
--- /dev/null
+++ b/haddock-library/vendor/attoparsec-0.10.4.0/Data/Attoparsec/ByteString/Internal.hs
@@ -0,0 +1,516 @@
+{-# LANGUAGE BangPatterns, CPP, Rank2Types, OverloadedStrings,
+    RecordWildCards, MagicHash, UnboxedTuples #-}
+-- |
+-- Module      :  Data.Attoparsec.ByteString.Internal
+-- Copyright   :  Bryan O'Sullivan 2007-2011
+-- License     :  BSD3
+--
+-- Maintainer  :  bos@serpentine.com
+-- Stability   :  experimental
+-- Portability :  unknown
+--
+-- Simple, efficient parser combinators for 'B.ByteString' strings,
+-- loosely based on the Parsec library.
+
+module Data.Attoparsec.ByteString.Internal
+    (
+    -- * Parser types
+      Parser
+    , Result
+
+    -- * Running parsers
+    , parse
+    , parseOnly
+
+    -- * Combinators
+    , (<?>)
+    , try
+    , module Data.Attoparsec.Combinator
+
+    -- * Parsing individual bytes
+    , satisfy
+    , satisfyWith
+    , anyWord8
+    , skip
+    , word8
+    , notWord8
+    , peekWord8
+
+    -- ** Byte classes
+    , inClass
+    , notInClass
+
+    -- * Parsing more complicated structures
+    , storable
+
+    -- * Efficient string handling
+    , skipWhile
+    , string
+    , stringTransform
+    , take
+    , scan
+    , takeWhile
+    , takeWhile1
+    , takeTill
+
+    -- ** Consume all remaining input
+    , takeByteString
+    , takeLazyByteString
+
+    -- * State observation and manipulation functions
+    , endOfInput
+    , atEnd
+
+    -- * Utilities
+    , endOfLine
+    ) where
+
+import Control.Applicative ((<|>), (<$>))
+import Control.Monad (when)
+import Data.Attoparsec.ByteString.FastSet (charClass, memberWord8)
+import Data.Attoparsec.Combinator
+import Data.Attoparsec.Internal.Types
+    hiding (Parser, Input, Added, Failure, Success)
+import Data.Monoid (Monoid(..))
+import Data.Word (Word8)
+import Foreign.ForeignPtr (withForeignPtr)
+import Foreign.Ptr (castPtr, minusPtr, plusPtr)
+import Foreign.Storable (Storable(peek, sizeOf))
+import Prelude hiding (getChar, take, takeWhile)
+import qualified Data.Attoparsec.Internal.Types as T
+import qualified Data.ByteString as B8
+import qualified Data.ByteString.Char8 as B
+import qualified Data.ByteString.Internal as B
+import qualified Data.ByteString.Lazy as L
+import qualified Data.ByteString.Unsafe as B
+
+#if defined(__GLASGOW_HASKELL__)
+import GHC.Base (realWorld#)
+import GHC.IO (IO(IO))
+#else
+import System.IO.Unsafe (unsafePerformIO)
+#endif
+
+type Parser = T.Parser B.ByteString
+type Result = IResult B.ByteString
+type Input = T.Input B.ByteString
+type Added = T.Added B.ByteString
+type Failure r = T.Failure B.ByteString r
+type Success a r = T.Success B.ByteString a r
+
+ensure' :: Int -> Input -> Added -> More -> Failure r -> Success B.ByteString r
+        -> IResult B.ByteString r
+ensure' !n0 i0 a0 m0 kf0 ks0 =
+    T.runParser (demandInput >> go n0) i0 a0 m0 kf0 ks0
+  where
+    go !n = T.Parser $ \i a m kf ks ->
+        if B.length (unI i) >= n
+        then ks i a m (unI i)
+        else T.runParser (demandInput >> go n) i a m kf ks
+
+-- | If at least @n@ bytes of input are available, return the current
+-- input, otherwise fail.
+ensure :: Int -> Parser B.ByteString
+ensure !n = T.Parser $ \i0 a0 m0 kf ks ->
+    if B.length (unI i0) >= n
+    then ks i0 a0 m0 (unI i0)
+    -- The uncommon case is kept out-of-line to reduce code size:
+    else ensure' n i0 a0 m0 kf ks
+-- Non-recursive so the bounds check can be inlined:
+{-# INLINE ensure #-}
+
+-- | Ask for input.  If we receive any, pass it to a success
+-- continuation, otherwise to a failure continuation.
+prompt :: Input -> Added -> More
+       -> (Input -> Added -> More -> Result r)
+       -> (Input -> Added -> More -> Result r)
+       -> Result r
+prompt i0 a0 _m0 kf ks = Partial $ \s ->
+    if B.null s
+    then kf i0 a0 Complete
+    else ks (i0 <> I s) (a0 <> A s) Incomplete
+
+-- | Immediately demand more input via a 'Partial' continuation
+-- result.
+demandInput :: Parser ()
+demandInput = T.Parser $ \i0 a0 m0 kf ks ->
+    if m0 == Complete
+    then kf i0 a0 m0 ["demandInput"] "not enough bytes"
+    else let kf' i a m = kf i a m ["demandInput"] "not enough bytes"
+             ks' i a m = ks i a m ()
+         in prompt i0 a0 m0 kf' ks'
+
+-- | This parser always succeeds.  It returns 'True' if any input is
+-- available either immediately or on demand, and 'False' if the end
+-- of all input has been reached.
+wantInput :: Parser Bool
+wantInput = T.Parser $ \i0 a0 m0 _kf ks ->
+  case () of
+    _ | not (B.null (unI i0)) -> ks i0 a0 m0 True
+      | m0 == Complete  -> ks i0 a0 m0 False
+      | otherwise       -> let kf' i a m = ks i a m False
+                               ks' i a m = ks i a m True
+                           in prompt i0 a0 m0 kf' ks'
+
+get :: Parser B.ByteString
+get  = T.Parser $ \i0 a0 m0 _kf ks -> ks i0 a0 m0 (unI i0)
+
+put :: B.ByteString -> Parser ()
+put s = T.Parser $ \_i0 a0 m0 _kf ks -> ks (I s) a0 m0 ()
+
+-- | Attempt a parse, and if it fails, rewind the input so that no
+-- input appears to have been consumed.
+--
+-- This combinator is provided for compatibility with Parsec.
+-- Attoparsec parsers always backtrack on failure.
+try :: Parser a -> Parser a
+try p = p
+{-# INLINE try #-}
+
+-- | The parser @satisfy p@ succeeds for any byte for which the
+-- predicate @p@ returns 'True'. Returns the byte that is actually
+-- parsed.
+--
+-- >digit = satisfy isDigit
+-- >    where isDigit w = w >= 48 && w <= 57
+satisfy :: (Word8 -> Bool) -> Parser Word8
+satisfy p = do
+  s <- ensure 1
+  let !w = B.unsafeHead s
+  if p w
+    then put (B.unsafeTail s) >> return w
+    else fail "satisfy"
+{-# INLINE satisfy #-}
+
+-- | The parser @skip p@ succeeds for any byte for which the predicate
+-- @p@ returns 'True'.
+--
+-- >skipDigit = skip isDigit
+-- >    where isDigit w = w >= 48 && w <= 57
+skip :: (Word8 -> Bool) -> Parser ()
+skip p = do
+  s <- ensure 1
+  if p (B.unsafeHead s)
+    then put (B.unsafeTail s)
+    else fail "skip"
+
+-- | The parser @satisfyWith f p@ transforms a byte, and succeeds if
+-- the predicate @p@ returns 'True' on the transformed value. The
+-- parser returns the transformed byte that was parsed.
+satisfyWith :: (Word8 -> a) -> (a -> Bool) -> Parser a
+satisfyWith f p = do
+  s <- ensure 1
+  let c = f $! B.unsafeHead s
+  if p c
+    then let !t = B.unsafeTail s
+         in put t >> return c
+    else fail "satisfyWith"
+{-# INLINE satisfyWith #-}
+
+storable :: Storable a => Parser a
+storable = hack undefined
+ where
+  hack :: Storable b => b -> Parser b
+  hack dummy = do
+    (fp,o,_) <- B.toForeignPtr `fmap` take (sizeOf dummy)
+    return . B.inlinePerformIO . withForeignPtr fp $ \p ->
+        peek (castPtr $ p `plusPtr` o)
+
+-- | Consume @n@ bytes of input, but succeed only if the predicate
+-- returns 'True'.
+takeWith :: Int -> (B.ByteString -> Bool) -> Parser B.ByteString
+takeWith n0 p = do
+  let n = max n0 0
+  s <- ensure n
+  let h = B.unsafeTake n s
+      t = B.unsafeDrop n s
+  if p h
+    then put t >> return h
+    else fail "takeWith"
+
+-- | Consume exactly @n@ bytes of input.
+take :: Int -> Parser B.ByteString
+take n = takeWith n (const True)
+{-# INLINE take #-}
+
+-- | @string s@ parses a sequence of bytes that identically match
+-- @s@. Returns the parsed string (i.e. @s@).  This parser consumes no
+-- input if it fails (even if a partial match).
+--
+-- /Note/: The behaviour of this parser is different to that of the
+-- similarly-named parser in Parsec, as this one is all-or-nothing.
+-- To illustrate the difference, the following parser will fail under
+-- Parsec given an input of @\"for\"@:
+--
+-- >string "foo" <|> string "for"
+--
+-- The reason for its failure is that the first branch is a
+-- partial match, and will consume the letters @\'f\'@ and @\'o\'@
+-- before failing.  In Attoparsec, the above parser will /succeed/ on
+-- that input, because the failed first branch will consume nothing.
+string :: B.ByteString -> Parser B.ByteString
+string s = takeWith (B.length s) (==s)
+{-# INLINE string #-}
+
+stringTransform :: (B.ByteString -> B.ByteString) -> B.ByteString
+                -> Parser B.ByteString
+stringTransform f s = takeWith (B.length s) ((==f s) . f)
+{-# INLINE stringTransform #-}
+
+-- | Skip past input for as long as the predicate returns 'True'.
+skipWhile :: (Word8 -> Bool) -> Parser ()
+skipWhile p = go
+ where
+  go = do
+    t <- B8.dropWhile p <$> get
+    put t
+    when (B.null t) $ do
+      input <- wantInput
+      when input go
+{-# INLINE skipWhile #-}
+
+-- | Consume input as long as the predicate returns 'False'
+-- (i.e. until it returns 'True'), and return the consumed input.
+--
+-- This parser does not fail.  It will return an empty string if the
+-- predicate returns 'True' on the first byte of input.
+--
+-- /Note/: Because this parser does not fail, do not use it with
+-- combinators such as 'many', because such parsers loop until a
+-- failure occurs.  Careless use will thus result in an infinite loop.
+takeTill :: (Word8 -> Bool) -> Parser B.ByteString
+takeTill p = takeWhile (not . p)
+{-# INLINE takeTill #-}
+
+-- | Consume input as long as the predicate returns 'True', and return
+-- the consumed input.
+--
+-- This parser does not fail.  It will return an empty string if the
+-- predicate returns 'False' on the first byte of input.
+--
+-- /Note/: Because this parser does not fail, do not use it with
+-- combinators such as 'many', because such parsers loop until a
+-- failure occurs.  Careless use will thus result in an infinite loop.
+takeWhile :: (Word8 -> Bool) -> Parser B.ByteString
+takeWhile p = (B.concat . reverse) `fmap` go []
+ where
+  go acc = do
+    (h,t) <- B8.span p <$> get
+    put t
+    if B.null t
+      then do
+        input <- wantInput
+        if input
+          then go (h:acc)
+          else return (h:acc)
+      else return (h:acc)
+{-# INLINE takeWhile #-}
+
+takeRest :: Parser [B.ByteString]
+takeRest = go []
+ where
+  go acc = do
+    input <- wantInput
+    if input
+      then do
+        s <- get
+        put B.empty
+        go (s:acc)
+      else return (reverse acc)
+
+-- | Consume all remaining input and return it as a single string.
+takeByteString :: Parser B.ByteString
+takeByteString = B.concat `fmap` takeRest
+
+-- | Consume all remaining input and return it as a single string.
+takeLazyByteString :: Parser L.ByteString
+takeLazyByteString = L.fromChunks `fmap` takeRest
+
+data T s = T {-# UNPACK #-} !Int s
+
+-- | A stateful scanner.  The predicate consumes and transforms a
+-- state argument, and each transformed state is passed to successive
+-- invocations of the predicate on each byte of the input until one
+-- returns 'Nothing' or the input ends.
+--
+-- This parser does not fail.  It will return an empty string if the
+-- predicate returns 'Nothing' on the first byte of input.
+--
+-- /Note/: Because this parser does not fail, do not use it with
+-- combinators such as 'many', because such parsers loop until a
+-- failure occurs.  Careless use will thus result in an infinite loop.
+scan :: s -> (s -> Word8 -> Maybe s) -> Parser B.ByteString
+scan s0 p = do
+  chunks <- go [] s0
+  case chunks of
+    [x] -> return x
+    xs  -> return $! B.concat $ reverse xs
+ where
+  go acc s1 = do
+    let scanner (B.PS fp off len) =
+          withForeignPtr fp $ \ptr0 -> do
+            let start = ptr0 `plusPtr` off
+                end   = start `plusPtr` len
+                inner ptr !s
+                  | ptr < end = do
+                    w <- peek ptr
+                    case p s w of
+                      Just s' -> inner (ptr `plusPtr` 1) s'
+                      _       -> done (ptr `minusPtr` start) s
+                  | otherwise = done (ptr `minusPtr` start) s
+                done !i !s = return (T i s)
+            inner start s1
+    bs <- get
+    let T i s' = inlinePerformIO $ scanner bs
+        !h = B.unsafeTake i bs
+        !t = B.unsafeDrop i bs
+    put t
+    if B.null t
+      then do
+        input <- wantInput
+        if input
+          then go (h:acc) s'
+          else return (h:acc)
+      else return (h:acc)
+{-# INLINE scan #-}
+
+-- | Consume input as long as the predicate returns 'True', and return
+-- the consumed input.
+--
+-- This parser requires the predicate to succeed on at least one byte
+-- of input: it will fail if the predicate never returns 'True' or if
+-- there is no input left.
+takeWhile1 :: (Word8 -> Bool) -> Parser B.ByteString
+takeWhile1 p = do
+  (`when` demandInput) =<< B.null <$> get
+  (h,t) <- B8.span p <$> get
+  when (B.null h) $ fail "takeWhile1"
+  put t
+  if B.null t
+    then (h<>) `fmap` takeWhile p
+    else return h
+
+-- | Match any byte in a set.
+--
+-- >vowel = inClass "aeiou"
+--
+-- Range notation is supported.
+--
+-- >halfAlphabet = inClass "a-nA-N"
+--
+-- To add a literal @\'-\'@ to a set, place it at the beginning or end
+-- of the string.
+inClass :: String -> Word8 -> Bool
+inClass s = (`memberWord8` mySet)
+    where mySet = charClass s
+          {-# NOINLINE mySet #-}
+{-# INLINE inClass #-}
+
+-- | Match any byte not in a set.
+notInClass :: String -> Word8 -> Bool
+notInClass s = not . inClass s
+{-# INLINE notInClass #-}
+
+-- | Match any byte.
+anyWord8 :: Parser Word8
+anyWord8 = satisfy $ const True
+{-# INLINE anyWord8 #-}
+
+-- | Match a specific byte.
+word8 :: Word8 -> Parser Word8
+word8 c = satisfy (== c) <?> show c
+{-# INLINE word8 #-}
+
+-- | Match any byte except the given one.
+notWord8 :: Word8 -> Parser Word8
+notWord8 c = satisfy (/= c) <?> "not " ++ show c
+{-# INLINE notWord8 #-}
+
+-- | Match any byte. Returns 'Nothing' if end of input has been
+-- reached. Does not consume any input.
+--
+-- /Note/: Because this parser does not fail, do not use it with
+-- combinators such as 'many', because such parsers loop until a
+-- failure occurs.  Careless use will thus result in an infinite loop.
+peekWord8 :: Parser (Maybe Word8)
+peekWord8 = T.Parser $ \i0 a0 m0 _kf ks ->
+            if B.null (unI i0)
+            then if m0 == Complete
+                 then ks i0 a0 m0 Nothing
+                 else let ks' i a m = let !w = B.unsafeHead (unI i)
+                                      in ks i a m (Just w)
+                          kf' i a m = ks i a m Nothing
+                      in prompt i0 a0 m0 kf' ks'
+            else let !w = B.unsafeHead (unI i0)
+                 in ks i0 a0 m0 (Just w)
+{-# INLINE peekWord8 #-}
+
+-- | Match only if all input has been consumed.
+endOfInput :: Parser ()
+endOfInput = T.Parser $ \i0 a0 m0 kf ks ->
+             if B.null (unI i0)
+             then if m0 == Complete
+                  then ks i0 a0 m0 ()
+                  else let kf' i1 a1 m1 _ _ = addS i0 a0 m0 i1 a1 m1 $
+                                              \ i2 a2 m2 -> ks i2 a2 m2 ()
+                           ks' i1 a1 m1 _   = addS i0 a0 m0 i1 a1 m1 $
+                                              \ i2 a2 m2 -> kf i2 a2 m2 []
+                                                            "endOfInput"
+                       in  T.runParser demandInput i0 a0 m0 kf' ks'
+             else kf i0 a0 m0 [] "endOfInput"
+
+-- | Return an indication of whether the end of input has been
+-- reached.
+atEnd :: Parser Bool
+atEnd = not <$> wantInput
+{-# INLINE atEnd #-}
+
+-- | Match either a single newline character @\'\\n\'@, or a carriage
+-- return followed by a newline character @\"\\r\\n\"@.
+endOfLine :: Parser ()
+endOfLine = (word8 10 >> return ()) <|> (string "\r\n" >> return ())
+
+-- | Name the parser, in case failure occurs.
+(<?>) :: Parser a
+      -> String                 -- ^ the name to use if parsing fails
+      -> Parser a
+p <?> msg0 = T.Parser $ \i0 a0 m0 kf ks ->
+             let kf' i a m strs msg = kf i a m (msg0:strs) msg
+             in T.runParser p i0 a0 m0 kf' ks
+{-# INLINE (<?>) #-}
+infix 0 <?>
+
+-- | Terminal failure continuation.
+failK :: Failure a
+failK i0 _a0 _m0 stack msg = Fail (unI i0) stack msg
+{-# INLINE failK #-}
+
+-- | Terminal success continuation.
+successK :: Success a a
+successK i0 _a0 _m0 a = Done (unI i0) a
+{-# INLINE successK #-}
+
+-- | Run a parser.
+parse :: Parser a -> B.ByteString -> Result a
+parse m s = T.runParser m (I s) mempty Incomplete failK successK
+{-# INLINE parse #-}
+
+-- | Run a parser that cannot be resupplied via a 'Partial' result.
+parseOnly :: Parser a -> B.ByteString -> Either String a
+parseOnly m s = case T.runParser m (I s) mempty Complete failK successK of
+                  Fail _ _ err -> Left err
+                  Done _ a     -> Right a
+                  _            -> error "parseOnly: impossible error!"
+{-# INLINE parseOnly #-}
+
+-- | Just like unsafePerformIO, but we inline it. Big performance gains as
+-- it exposes lots of things to further inlining. /Very unsafe/. In
+-- particular, you should do no memory allocation inside an
+-- 'inlinePerformIO' block. On Hugs this is just @unsafePerformIO@.
+inlinePerformIO :: IO a -> a
+#if defined(__GLASGOW_HASKELL__)
+inlinePerformIO (IO m) = case m realWorld# of (# _, r #) -> r
+#else
+inlinePerformIO = unsafePerformIO
+#endif
+{-# INLINE inlinePerformIO #-}
diff --git a/haddock-library/vendor/attoparsec-0.10.4.0/Data/Attoparsec/Combinator.hs b/haddock-library/vendor/attoparsec-0.10.4.0/Data/Attoparsec/Combinator.hs
new file mode 100644
index 00000000..cb9cee83
--- /dev/null
+++ b/haddock-library/vendor/attoparsec-0.10.4.0/Data/Attoparsec/Combinator.hs
@@ -0,0 +1,205 @@
+{-# LANGUAGE BangPatterns, CPP #-}
+-- |
+-- Module      :  Data.Attoparsec.Combinator
+-- Copyright   :  Daan Leijen 1999-2001, Bryan O'Sullivan 2009-2010
+-- License     :  BSD3
+--
+-- Maintainer  :  bos@serpentine.com
+-- Stability   :  experimental
+-- Portability :  portable
+--
+-- Useful parser combinators, similar to those provided by Parsec.
+module Data.Attoparsec.Combinator
+    (
+      choice
+    , count
+    , option
+    , many'
+    , many1
+    , many1'
+    , manyTill
+    , manyTill'
+    , sepBy
+    , sepBy'
+    , sepBy1
+    , sepBy1'
+    , skipMany
+    , skipMany1
+    , eitherP
+    ) where
+
+import Control.Applicative (Alternative(..), Applicative(..), empty, liftA2,
+                            (<|>), (*>), (<$>))
+import Control.Monad (MonadPlus(..))
+#if !MIN_VERSION_base(4,2,0)
+import Control.Applicative (many)
+#endif
+
+#if __GLASGOW_HASKELL__ >= 700
+import Data.Attoparsec.Internal.Types (Parser)
+import Data.ByteString (ByteString)
+#endif
+
+-- | @choice ps@ tries to apply the actions in the list @ps@ in order,
+-- until one of them succeeds. Returns the value of the succeeding
+-- action.
+choice :: Alternative f => [f a] -> f a
+choice = foldr (<|>) empty
+#if __GLASGOW_HASKELL__ >= 700
+{-# SPECIALIZE choice :: [Parser ByteString a] -> Parser ByteString a #-}
+#endif
+
+-- | @option x p@ tries to apply action @p@. If @p@ fails without
+-- consuming input, it returns the value @x@, otherwise the value
+-- returned by @p@.
+--
+-- > priority  = option 0 (digitToInt <$> digit)
+option :: Alternative f => a -> f a -> f a
+option x p = p <|> pure x
+#if __GLASGOW_HASKELL__ >= 700
+{-# SPECIALIZE option :: a -> Parser ByteString a -> Parser ByteString a #-}
+#endif
+
+-- | A version of 'liftM2' that is strict in the result of its first
+-- action.
+liftM2' :: (Monad m) => (a -> b -> c) -> m a -> m b -> m c
+liftM2' f a b = do
+  !x <- a
+  y <- b
+  return (f x y)
+{-# INLINE liftM2' #-}
+
+-- | @many' p@ applies the action @p@ /zero/ or more times. Returns a
+-- list of the returned values of @p@. The value returned by @p@ is
+-- forced to WHNF.
+--
+-- >  word  = many' letter
+many' :: (MonadPlus m) => m a -> m [a]
+many' p = many_p
+  where many_p = some_p `mplus` return []
+        some_p = liftM2' (:) p many_p
+{-# INLINE many' #-}
+
+-- | @many1 p@ applies the action @p@ /one/ or more times. Returns a
+-- list of the returned values of @p@.
+--
+-- >  word  = many1 letter
+many1 :: Alternative f => f a -> f [a]
+many1 p = liftA2 (:) p (many p)
+{-# INLINE many1 #-}
+
+-- | @many1' p@ applies the action @p@ /one/ or more times. Returns a
+-- list of the returned values of @p@. The value returned by @p@ is
+-- forced to WHNF.
+--
+-- >  word  = many1' letter
+many1' :: (MonadPlus m) => m a -> m [a]
+many1' p = liftM2' (:) p (many' p)
+{-# INLINE many1' #-}
+
+-- | @sepBy p sep@ applies /zero/ or more occurrences of @p@, separated
+-- by @sep@. Returns a list of the values returned by @p@.
+--
+-- > commaSep p  = p `sepBy` (symbol ",")
+sepBy :: Alternative f => f a -> f s -> f [a]
+sepBy p s = liftA2 (:) p ((s *> sepBy1 p s) <|> pure []) <|> pure []
+#if __GLASGOW_HASKELL__ >= 700
+{-# SPECIALIZE sepBy :: Parser ByteString a -> Parser ByteString s
+                     -> Parser ByteString [a] #-}
+#endif
+
+-- | @sepBy' p sep@ applies /zero/ or more occurrences of @p@, separated
+-- by @sep@. Returns a list of the values returned by @p@. The value
+-- returned by @p@ is forced to WHNF.
+--
+-- > commaSep p  = p `sepBy'` (symbol ",")
+sepBy' :: (MonadPlus m) => m a -> m s -> m [a]
+sepBy' p s = scan `mplus` return []
+  where scan = liftM2' (:) p ((s >> sepBy1' p s) `mplus` return [])
+#if __GLASGOW_HASKELL__ >= 700
+{-# SPECIALIZE sepBy' :: Parser ByteString a -> Parser ByteString s
+                      -> Parser ByteString [a] #-}
+#endif
+
+-- | @sepBy1 p sep@ applies /one/ or more occurrences of @p@, separated
+-- by @sep@. Returns a list of the values returned by @p@.
+--
+-- > commaSep p  = p `sepBy1` (symbol ",")
+sepBy1 :: Alternative f => f a -> f s -> f [a]
+sepBy1 p s = scan
+    where scan = liftA2 (:) p ((s *> scan) <|> pure [])
+#if __GLASGOW_HASKELL__ >= 700
+{-# SPECIALIZE sepBy1 :: Parser ByteString a -> Parser ByteString s
+                      -> Parser ByteString [a] #-}
+#endif
+
+-- | @sepBy1' p sep@ applies /one/ or more occurrences of @p@, separated
+-- by @sep@. Returns a list of the values returned by @p@. The value
+-- returned by @p@ is forced to WHNF.
+--
+-- > commaSep p  = p `sepBy1'` (symbol ",")
+sepBy1' :: (MonadPlus m) => m a -> m s -> m [a]
+sepBy1' p s = scan
+    where scan = liftM2' (:) p ((s >> scan) `mplus` return [])
+#if __GLASGOW_HASKELL__ >= 700
+{-# SPECIALIZE sepBy1' :: Parser ByteString a -> Parser ByteString s
+                       -> Parser ByteString [a] #-}
+#endif
+
+-- | @manyTill p end@ applies action @p@ /zero/ or more times until
+-- action @end@ succeeds, and returns the list of values returned by
+-- @p@.  This can be used to scan comments:
+--
+-- >  simpleComment   = string "<!--" *> manyTill anyChar (try (string "-->"))
+--
+-- Note the overlapping parsers @anyChar@ and @string \"<!--\"@, and
+-- therefore the use of the 'try' combinator.
+manyTill :: Alternative f => f a -> f b -> f [a]
+manyTill p end = scan
+    where scan = (end *> pure []) <|> liftA2 (:) p scan
+#if __GLASGOW_HASKELL__ >= 700
+{-# SPECIALIZE manyTill :: Parser ByteString a -> Parser ByteString b
+                        -> Parser ByteString [a] #-}
+#endif
+
+-- | @manyTill' p end@ applies action @p@ /zero/ or more times until
+-- action @end@ succeeds, and returns the list of values returned by
+-- @p@.  This can be used to scan comments:
+--
+-- >  simpleComment   = string "<!--" *> manyTill' anyChar (try (string "-->"))
+--
+-- Note the overlapping parsers @anyChar@ and @string \"<!--\"@, and
+-- therefore the use of the 'try' combinator. The value returned by @p@
+-- is forced to WHNF.
+manyTill' :: (MonadPlus m) => m a -> m b -> m [a]
+manyTill' p end = scan
+    where scan = (end >> return []) `mplus` liftM2' (:) p scan
+#if __GLASGOW_HASKELL__ >= 700
+{-# SPECIALIZE manyTill' :: Parser ByteString a -> Parser ByteString b
+                         -> Parser ByteString [a] #-}
+#endif
+
+-- | Skip zero or more instances of an action.
+skipMany :: Alternative f => f a -> f ()
+skipMany p = scan
+    where scan = (p *> scan) <|> pure ()
+#if __GLASGOW_HASKELL__ >= 700
+{-# SPECIALIZE skipMany :: Parser ByteString a -> Parser ByteString () #-}
+#endif
+
+-- | Skip one or more instances of an action.
+skipMany1 :: Alternative f => f a -> f ()
+skipMany1 p = p *> skipMany p
+#if __GLASGOW_HASKELL__ >= 700
+{-# SPECIALIZE skipMany1 :: Parser ByteString a -> Parser ByteString () #-}
+#endif
+
+-- | Apply the given action repeatedly, returning every result.
+count :: Monad m => Int -> m a -> m [a]
+count n p = sequence (replicate n p)
+{-# INLINE count #-}
+
+-- | Combine two alternatives.
+eitherP :: (Alternative f) => f a -> f b -> f (Either a b)
+eitherP a b = (Left <$> a) <|> (Right <$> b)
+{-# INLINE eitherP #-}
diff --git a/haddock-library/vendor/attoparsec-0.10.4.0/Data/Attoparsec/Internal.hs b/haddock-library/vendor/attoparsec-0.10.4.0/Data/Attoparsec/Internal.hs
new file mode 100644
index 00000000..0572d682
--- /dev/null
+++ b/haddock-library/vendor/attoparsec-0.10.4.0/Data/Attoparsec/Internal.hs
@@ -0,0 +1,31 @@
+-- |
+-- Module      :  Data.Attoparsec.Internal
+-- Copyright   :  Bryan O'Sullivan 2012
+-- License     :  BSD3
+--
+-- Maintainer  :  bos@serpentine.com
+-- Stability   :  experimental
+-- Portability :  unknown
+--
+-- Simple, efficient parser combinators, loosely based on the Parsec
+-- library.
+
+module Data.Attoparsec.Internal
+    (
+      compareResults
+    ) where
+
+import Data.Attoparsec.Internal.Types (IResult(..))
+
+-- | Compare two 'IResult' values for equality.
+--
+-- If both 'IResult's are 'Partial', the result will be 'Nothing', as
+-- they are incomplete and hence their equality cannot be known.
+-- (This is why there is no 'Eq' instance for 'IResult'.)
+compareResults :: (Eq t, Eq r) => IResult t r -> IResult t r -> Maybe Bool
+compareResults (Fail i0 ctxs0 msg0) (Fail i1 ctxs1 msg1) =
+    Just (i0 == i1 && ctxs0 == ctxs1 && msg0 == msg1)
+compareResults (Done i0 r0) (Done i1 r1) =
+    Just (i0 == i1 && r0 == r1)
+compareResults (Partial _) (Partial _) = Nothing
+compareResults _ _ = Just False
diff --git a/haddock-library/vendor/attoparsec-0.10.4.0/Data/Attoparsec/Internal/Types.hs b/haddock-library/vendor/attoparsec-0.10.4.0/Data/Attoparsec/Internal/Types.hs
new file mode 100644
index 00000000..e47e5c9e
--- /dev/null
+++ b/haddock-library/vendor/attoparsec-0.10.4.0/Data/Attoparsec/Internal/Types.hs
@@ -0,0 +1,227 @@
+{-# LANGUAGE BangPatterns, CPP, GeneralizedNewtypeDeriving, OverloadedStrings,
+    Rank2Types, RecordWildCards #-}
+-- |
+-- Module      :  Data.Attoparsec.Internal.Types
+-- Copyright   :  Bryan O'Sullivan 2007-2011
+-- License     :  BSD3
+--
+-- Maintainer  :  bos@serpentine.com
+-- Stability   :  experimental
+-- Portability :  unknown
+--
+-- Simple, efficient parser combinators, loosely based on the Parsec
+-- library.
+
+module Data.Attoparsec.Internal.Types
+    (
+      Parser(..)
+    , Failure
+    , Success
+    , IResult(..)
+    , Input(..)
+    , Added(..)
+    , More(..)
+    , addS
+    , (<>)
+    ) where
+
+import Control.Applicative (Alternative(..), Applicative(..), (<$>))
+import Control.DeepSeq (NFData(rnf))
+import Control.Monad (MonadPlus(..))
+import Data.Monoid (Monoid(..))
+import Prelude hiding (getChar, take, takeWhile)
+
+-- | The result of a parse.  This is parameterised over the type @t@
+-- of string that was processed.
+--
+-- This type is an instance of 'Functor', where 'fmap' transforms the
+-- value in a 'Done' result.
+data IResult t r = Fail t [String] String
+                 -- ^ The parse failed.  The 't' parameter is the
+                 -- input that had not yet been consumed when the
+                 -- failure occurred.  The @[@'String'@]@ is a list of
+                 -- contexts in which the error occurred.  The
+                 -- 'String' is the message describing the error, if
+                 -- any.
+                 | Partial (t -> IResult t r)
+                 -- ^ Supply this continuation with more input so that
+                 -- the parser can resume.  To indicate that no more
+                 -- input is available, use an empty string.
+                 | Done t r
+                 -- ^ The parse succeeded.  The 't' parameter is the
+                 -- input that had not yet been consumed (if any) when
+                 -- the parse succeeded.
+
+instance (Show t, Show r) => Show (IResult t r) where
+    show (Fail t stk msg) =
+        "Fail " ++ show t ++ " " ++ show stk ++ " " ++ show msg
+    show (Partial _)      = "Partial _"
+    show (Done t r)       = "Done " ++ show t ++ " " ++ show r
+
+instance (NFData t, NFData r) => NFData (IResult t r) where
+    rnf (Fail t stk msg) = rnf t `seq` rnf stk `seq` rnf msg
+    rnf (Partial _)  = ()
+    rnf (Done t r)   = rnf t `seq` rnf r
+    {-# INLINE rnf #-}
+
+fmapR :: (a -> b) -> IResult t a -> IResult t b
+fmapR _ (Fail t stk msg) = Fail t stk msg
+fmapR f (Partial k)       = Partial (fmapR f . k)
+fmapR f (Done t r)       = Done t (f r)
+
+instance Functor (IResult t) where
+    fmap = fmapR
+    {-# INLINE fmap #-}
+
+newtype Input t = I {unI :: t} deriving (Monoid)
+newtype Added t = A {unA :: t} deriving (Monoid)
+
+-- | The core parser type.  This is parameterised over the type @t@ of
+-- string being processed.
+--
+-- This type is an instance of the following classes:
+--
+-- * 'Monad', where 'fail' throws an exception (i.e. fails) with an
+--   error message.
+--
+-- * 'Functor' and 'Applicative', which follow the usual definitions.
+--
+-- * 'MonadPlus', where 'mzero' fails (with no error message) and
+--   'mplus' executes the right-hand parser if the left-hand one
+--   fails.  When the parser on the right executes, the input is reset
+--   to the same state as the parser on the left started with. (In
+--   other words, Attoparsec is a backtracking parser that supports
+--   arbitrary lookahead.)
+--
+-- * 'Alternative', which follows 'MonadPlus'.
+newtype Parser t a = Parser {
+      runParser :: forall r. Input t -> Added t -> More
+                -> Failure t   r
+                -> Success t a r
+                -> IResult t r
+    }
+
+type Failure t   r = Input t -> Added t -> More -> [String] -> String
+                   -> IResult t r
+type Success t a r = Input t -> Added t -> More -> a -> IResult t r
+
+-- | Have we read all available input?
+data More = Complete | Incomplete
+            deriving (Eq, Show)
+
+instance Monoid More where
+    mappend c@Complete _ = c
+    mappend _ m          = m
+    mempty               = Incomplete
+
+addS :: (Monoid t) =>
+        Input t -> Added t -> More
+     -> Input t -> Added t -> More
+     -> (Input t -> Added t -> More -> r) -> r
+addS i0 a0 m0 _i1 a1 m1 f =
+    let !i = i0 <> I (unA a1)
+        a  = a0 <> a1
+        !m = m0 <> m1
+    in f i a m
+{-# INLINE addS #-}
+
+bindP :: Parser t a -> (a -> Parser t b) -> Parser t b
+bindP m g =
+    Parser $ \i0 a0 m0 kf ks -> runParser m i0 a0 m0 kf $
+                                \i1 a1 m1 a -> runParser (g a) i1 a1 m1 kf ks
+{-# INLINE bindP #-}
+
+returnP :: a -> Parser t a
+returnP a = Parser (\i0 a0 m0 _kf ks -> ks i0 a0 m0 a)
+{-# INLINE returnP #-}
+
+instance Monad (Parser t) where
+    return = returnP
+    (>>=)  = bindP
+    fail   = failDesc
+
+noAdds :: (Monoid t) =>
+          Input t -> Added t -> More
+       -> (Input t -> Added t -> More -> r) -> r
+noAdds i0 _a0 m0 f = f i0 mempty m0
+{-# INLINE noAdds #-}
+
+plus :: (Monoid t) => Parser t a -> Parser t a -> Parser t a
+plus a b = Parser $ \i0 a0 m0 kf ks ->
+           let kf' i1 a1 m1 _ _ = addS i0 a0 m0 i1 a1 m1 $
+                                  \ i2 a2 m2 -> runParser b i2 a2 m2 kf ks
+               ks' i1 a1 m1 = ks i1 (a0 <> a1) m1
+           in  noAdds i0 a0 m0 $ \i2 a2 m2 -> runParser a i2 a2 m2 kf' ks'
+{-# INLINE plus #-}
+
+instance (Monoid t) => MonadPlus (Parser t) where
+    mzero = failDesc "mzero"
+    {-# INLINE mzero #-}
+    mplus = plus
+
+fmapP :: (a -> b) -> Parser t a -> Parser t b
+fmapP p m = Parser $ \i0 a0 m0 f k ->
+            runParser m i0 a0 m0 f $ \i1 a1 s1 a -> k i1 a1 s1 (p a)
+{-# INLINE fmapP #-}
+
+instance Functor (Parser t) where
+    fmap = fmapP
+    {-# INLINE fmap #-}
+
+apP :: Parser t (a -> b) -> Parser t a -> Parser t b
+apP d e = do
+  b <- d
+  a <- e
+  return (b a)
+{-# INLINE apP #-}
+
+instance Applicative (Parser t) where
+    pure   = returnP
+    {-# INLINE pure #-}
+    (<*>)  = apP
+    {-# INLINE (<*>) #-}
+
+#if MIN_VERSION_base(4,2,0)
+    -- These definitions are equal to the defaults, but this
+    -- way the optimizer doesn't have to work so hard to figure
+    -- that out.
+    (*>)   = (>>)
+    {-# INLINE (*>) #-}
+    x <* y = x >>= \a -> y >> return a
+    {-# INLINE (<*) #-}
+#endif
+
+instance (Monoid t) => Monoid (Parser t a) where
+    mempty  = failDesc "mempty"
+    {-# INLINE mempty #-}
+    mappend = plus
+    {-# INLINE mappend #-}
+
+instance (Monoid t) => Alternative (Parser t) where
+    empty = failDesc "empty"
+    {-# INLINE empty #-}
+
+    (<|>) = plus
+    {-# INLINE (<|>) #-}
+
+#if MIN_VERSION_base(4,2,0)
+    many v = many_v
+        where many_v = some_v <|> pure []
+              some_v = (:) <$> v <*> many_v
+    {-# INLINE many #-}
+
+    some v = some_v
+      where
+        many_v = some_v <|> pure []
+        some_v = (:) <$> v <*> many_v
+    {-# INLINE some #-}
+#endif
+
+failDesc :: String -> Parser t a
+failDesc err = Parser (\i0 a0 m0 kf _ks -> kf i0 a0 m0 [] msg)
+    where msg = "Failed reading: " ++ err
+{-# INLINE failDesc #-}
+
+(<>) :: (Monoid m) => m -> m -> m
+(<>) = mappend
+{-# INLINE (<>) #-}
diff --git a/haddock-library/vendor/attoparsec-0.10.4.0/Data/Attoparsec/Number.hs b/haddock-library/vendor/attoparsec-0.10.4.0/Data/Attoparsec/Number.hs
new file mode 100644
index 00000000..bf175f4b
--- /dev/null
+++ b/haddock-library/vendor/attoparsec-0.10.4.0/Data/Attoparsec/Number.hs
@@ -0,0 +1,127 @@
+{-# LANGUAGE DeriveDataTypeable #-}
+-- |
+-- Module      :  Data.Attoparsec.Number
+-- Copyright   :  Bryan O'Sullivan 2011
+-- License     :  BSD3
+--
+-- Maintainer  :  bos@serpentine.com
+-- Stability   :  experimental
+-- Portability :  unknown
+--
+-- A simple number type, useful for parsing both exact and inexact
+-- quantities without losing much precision.
+module Data.Attoparsec.Number
+    (
+      Number(..)
+    ) where
+
+import Control.DeepSeq (NFData(rnf))
+import Data.Data (Data)
+import Data.Function (on)
+import Data.Typeable (Typeable)
+
+-- | A numeric type that can represent integers accurately, and
+-- floating point numbers to the precision of a 'Double'.
+data Number = I !Integer
+            | D {-# UNPACK #-} !Double
+              deriving (Typeable, Data)
+
+instance Show Number where
+    show (I a) = show a
+    show (D a) = show a
+
+instance NFData Number where
+    rnf (I _) = ()
+    rnf (D _) = ()
+    {-# INLINE rnf #-}
+
+binop :: (Integer -> Integer -> a) -> (Double -> Double -> a)
+      -> Number -> Number -> a
+binop _ d (D a) (D b) = d a b
+binop i _ (I a) (I b) = i a b
+binop _ d (D a) (I b) = d a (fromIntegral b)
+binop _ d (I a) (D b) = d (fromIntegral a) b
+{-# INLINE binop #-}
+
+instance Eq Number where
+    (==) = binop (==) (==)
+    {-# INLINE (==) #-}
+
+    (/=) = binop (/=) (/=)
+    {-# INLINE (/=) #-}
+
+instance Ord Number where
+    (<) = binop (<) (<)
+    {-# INLINE (<) #-}
+
+    (<=) = binop (<=) (<=)
+    {-# INLINE (<=) #-}
+
+    (>) = binop (>) (>)
+    {-# INLINE (>) #-}
+
+    (>=) = binop (>=) (>=)
+    {-# INLINE (>=) #-}
+
+    compare = binop compare compare
+    {-# INLINE compare #-}
+
+instance Num Number where
+    (+) = binop (((I$!).) . (+)) (((D$!).) . (+))
+    {-# INLINE (+) #-}
+
+    (-) = binop (((I$!).) . (-)) (((D$!).) . (-))
+    {-# INLINE (-) #-}
+
+    (*) = binop (((I$!).) . (*)) (((D$!).) . (*))
+    {-# INLINE (*) #-}
+
+    abs (I a) = I $! abs a
+    abs (D a) = D $! abs a
+    {-# INLINE abs #-}
+
+    negate (I a) = I $! negate a
+    negate (D a) = D $! negate a
+    {-# INLINE negate #-}
+
+    signum (I a) = I $! signum a
+    signum (D a) = D $! signum a
+    {-# INLINE signum #-}
+
+    fromInteger = (I$!) . fromInteger
+    {-# INLINE fromInteger #-}
+
+instance Real Number where
+    toRational (I a) = fromIntegral a
+    toRational (D a) = toRational a
+    {-# INLINE toRational #-}
+
+instance Fractional Number where
+    fromRational = (D$!) . fromRational
+    {-# INLINE fromRational #-}
+
+    (/) = binop (((D$!).) . (/) `on` fromIntegral)
+                (((D$!).) . (/))
+    {-# INLINE (/) #-}
+
+    recip (I a) = D $! recip (fromIntegral a)
+    recip (D a) = D $! recip a
+    {-# INLINE recip #-}
+
+instance RealFrac Number where
+    properFraction (I a) = (fromIntegral a,0)
+    properFraction (D a) = case properFraction a of
+                             (i,d) -> (i,D d)
+    {-# INLINE properFraction #-}
+    truncate (I a) = fromIntegral a
+    truncate (D a) = truncate a
+    {-# INLINE truncate #-}
+    round (I a) = fromIntegral a
+    round (D a) = round a
+    {-# INLINE round #-}
+    ceiling (I a) = fromIntegral a
+    ceiling (D a) = ceiling a
+    {-# INLINE ceiling #-}
+    floor (I a) = fromIntegral a
+    floor (D a) = floor a
+    {-# INLINE floor #-}