3 files changed, 118 insertions, 6 deletions
diff --git a/src/Text/Pandoc/Data.hsb b/src/Text/Pandoc/Data.hsb
index 28e7f5112..cd8836a0b 100644
--- a/src/Text/Pandoc/Data.hsb
+++ b/src/Text/Pandoc/Data.hsb
@@ -5,3 +5,6 @@ import qualified Data.ByteString as B
 
 dataFiles :: [(FilePath, B.ByteString)]
 dataFiles = %blobs "data"
+
+readmeFile :: B.ByteString
+readmeFile = %blob "README"
diff --git a/src/Text/Pandoc/ManPages.hs b/src/Text/Pandoc/ManPages.hs
new file mode 100644
index 000000000..cc5f162f8
--- /dev/null
+++ b/src/Text/Pandoc/ManPages.hs
@@ -0,0 +1,101 @@
+{-# LANGUAGE CPP #-}
+{-
+Copyright (C) 2013-2015 John MacFarlane <jgm@berkeley.edu>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+-}
+
+{- |
+   Module      : Text.Pandoc.ManPages
+   Copyright   : Copyright (C) 2013-2015 John MacFarlane
+   License     : GNU GPL, version 2 or above
+
+   Maintainer  : John MacFarlane <jgm@berkeley.edu>
+   Stability   : alpha
+   Portability : portable
+
+Functions to build pandoc's man pages (pandoc.1 and pandoc_markdown.5)
+from pandoc's README.
+-}
+module Text.Pandoc.ManPages (
+  manPandoc1,
+  manPandocMarkdown5
+  ) where
+import Text.Pandoc
+import Text.Pandoc.Error (handleError)
+import Data.Char (toUpper)
+import System.FilePath
+import Text.Pandoc.Shared (normalize, readDataFileUTF8)
+
+manPandoc1 :: IO String
+manPandoc1 = do
+    readme <- readDataFileUTF8 Nothing "README"
+    let (Pandoc meta blocks) = normalize $ handleError
+                                         $ readMarkdown def readme
+    let manBlocks = removeSect [Str "Wrappers"]
+                  $ removeSect [Str "Pandoc's",Space,Str "markdown"] blocks
+    makeManPage "pandoc.1" meta manBlocks
+
+manPandocMarkdown5 :: IO String
+manPandocMarkdown5 = do
+    readme <- readDataFileUTF8 Nothing "README"
+    let (Pandoc meta blocks) = normalize $ handleError
+                                         $ readMarkdown def readme
+    let syntaxBlocks = extractSect [Str "Pandoc's",Space,Str "markdown"] blocks
+    makeManPage "pandoc_markdown.5" meta syntaxBlocks
+
+makeManPage :: String -> Meta -> [Block] -> IO String
+makeManPage page meta blocks = do
+  let templ = page <.> "template"
+  manTemplate <- readDataFileUTF8 Nothing templ
+  return $ writeManPage manTemplate (Pandoc meta blocks)
+
+writeManPage :: String -> Pandoc -> String
+writeManPage templ doc =
+  writeMan def{ writerStandalone = True
+              , writerTemplate = templ
+              , writerVariables = [("version", pandocVersion)] } $
+                    bottomUp (concatMap removeLinks) $
+                    bottomUp  capitalizeHeaders doc
+
+removeLinks :: Inline -> [Inline]
+removeLinks (Link l _) = l
+removeLinks x = [x]
+
+capitalizeHeaders :: Block -> Block
+capitalizeHeaders (Header 1 attr xs) = Header 1 attr $ bottomUp capitalize xs
+capitalizeHeaders x = x
+
+capitalize :: Inline -> Inline
+capitalize (Str xs) = Str $ map toUpper xs
+capitalize x = x
+
+removeSect :: [Inline] -> [Block] -> [Block]
+removeSect ils (Header 1 _ x:xs) | x == ils =
+  dropWhile (not . isHeader1) xs
+removeSect ils (x:xs) = x : removeSect ils xs
+removeSect _ [] = []
+
+extractSect :: [Inline] -> [Block] -> [Block]
+extractSect ils (Header 1 _ z:xs) | z == ils =
+  bottomUp promoteHeader $ takeWhile (not . isHeader1) xs
+    where promoteHeader (Header n attr x) = Header (n-1) attr x
+          promoteHeader x            = x
+extractSect ils (_:xs) = extractSect ils xs
+extractSect _ [] = []
+
+isHeader1 :: Block -> Bool
+isHeader1 (Header 1 _ _ ) = True
+isHeader1 _               = False
diff --git a/src/Text/Pandoc/Shared.hs b/src/Text/Pandoc/Shared.hs
index 362db2fed..2090e1734 100644
--- a/src/Text/Pandoc/Shared.hs
+++ b/src/Text/Pandoc/Shared.hs
@@ -132,7 +132,7 @@ import qualified Data.Text as T (toUpper, pack, unpack)
 import Data.ByteString.Lazy (toChunks)
 
 #ifdef EMBED_DATA_FILES
-import Text.Pandoc.Data (dataFiles)
+import Text.Pandoc.Data (dataFiles, readmeFile)
 #else
 import Paths_pandoc (getDataFileName)
 #endif
@@ -743,6 +743,12 @@ inDirectory path action = E.bracket
                              (const $ setCurrentDirectory path >> action)
 
 readDefaultDataFile :: FilePath -> IO BS.ByteString
+readDefaultDataFile "README" =
+#ifdef EMBED_DATA_FILES
+  return readmeFile
+#else
+  getDataFileName "README" >>= checkExistence >>= BS.readFile
+#endif
 readDefaultDataFile fname =
 #ifdef EMBED_DATA_FILES
   case lookup (makeCanonical fname) dataFiles of
@@ -755,13 +761,15 @@ readDefaultDataFile fname =
         go as     x    = x : as
 #else
   getDataFileName ("data" </> fname) >>= checkExistence >>= BS.readFile
-   where checkExistence fn = do
-           exists <- doesFileExist fn
-           if exists
-              then return fn
-              else err 97 ("Could not find data file " ++ fname)
 #endif
 
+checkExistence :: FilePath -> IO FilePath
+checkExistence fn = do
+  exists <- doesFileExist fn
+  if exists
+     then return fn
+     else err 97 ("Could not find data file " ++ fn)
+
 -- | Read file from specified user data directory or, if not found there, from
 -- Cabal data directory.
 readDataFile :: Maybe FilePath -> FilePath -> IO BS.ByteString