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-- Create pandoc.1 man page from README
import Text.Pandoc
import Data.ByteString.UTF8 (toString, fromString)
import Data.Char (toUpper)
import qualified Data.ByteString as B
import Control.Monad
import System.FilePath
import System.Environment (getArgs)
import Text.Pandoc.Shared (normalize)
import System.Directory (getModificationTime)
import System.IO.Error (isDoesNotExistError)
import System.Time (ClockTime(..))
import Data.Maybe (catMaybes)
main = do
rmContents <- liftM toString $ B.readFile "README"
let (Pandoc meta blocks) = readMarkdown defaultParserState rmContents
let manBlocks = removeSect [Str "Wrappers"]
$ removeSect [Str "Pandoc's",Space,Str "markdown"] blocks
let syntaxBlocks = extractSect [Str "Pandoc's",Space,Str "markdown"] blocks
args <- getArgs
let verbose = "--verbose" `elem` args
makeManPage verbose ("man" </> "man1" </> "pandoc.1")
meta manBlocks
makeManPage verbose ("man" </> "man5" </> "pandoc_markdown.5")
meta syntaxBlocks
let markdown2pdfpage = "man" </> "man1" </> "markdown2pdf.1"
modDeps <- modifiedDependencies markdown2pdfpage [markdown2pdfpage <.> "md"]
unless (null modDeps) $ do
mpdfContents <- liftM toString $ B.readFile $ markdown2pdfpage <.> "md"
templ <- liftM toString $ B.readFile $ "templates" </> "default.man"
let doc = readMarkdown defaultParserState{ stateStandalone = True }
mpdfContents
writeManPage markdown2pdfpage templ doc
when verbose $
putStrLn $ "Created " ++ markdown2pdfpage
makeManPage :: Bool -> FilePath -> Meta -> [Block] -> IO ()
makeManPage verbose page meta blocks = do
let templ = page <.> "template"
modDeps <- modifiedDependencies page ["README", templ]
unless (null modDeps) $ do
manTemplate <- liftM toString $ B.readFile templ
writeManPage page manTemplate (Pandoc meta blocks)
when verbose $
putStrLn $ "Created " ++ page
writeManPage :: FilePath -> String -> Pandoc -> IO ()
writeManPage page templ doc = do
let opts = defaultWriterOptions{ writerStandalone = True
, writerTemplate = templ }
let manPage = writeMan opts $
bottomUp (concatMap removeLinks) $
bottomUp capitalizeHeaders doc
B.writeFile page $ fromString manPage
-- | Returns a list of 'dependencies' that have been modified after 'file'.
modifiedDependencies :: FilePath -> [FilePath] -> IO [FilePath]
modifiedDependencies file dependencies = do
fileModTime <- catch (getModificationTime file) $
\e -> if isDoesNotExistError e
then return (TOD 0 0) -- the minimum ClockTime
else ioError e
depModTimes <- mapM getModificationTime dependencies
let modified = zipWith (\dep time -> if time > fileModTime then Just dep else Nothing) dependencies depModTimes
return $ catMaybes modified
removeLinks :: Inline -> [Inline]
removeLinks (Link l _) = l
removeLinks x = [x]
capitalizeHeaders :: Block -> Block
capitalizeHeaders (Header 1 xs) = Header 1 $ 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) | normalize x == normalize ils =
dropWhile (not . isHeader1) xs
removeSect ils (x:xs) = x : removeSect ils xs
removeSect _ [] = []
extractSect :: [Inline] -> [Block] -> [Block]
extractSect ils (Header 1 z:xs) | normalize z == normalize ils =
bottomUp promoteHeader $ takeWhile (not . isHeader1) xs
where promoteHeader (Header n x) = Header (n-1) x
promoteHeader x = x
extractSect ils (x:xs) = extractSect ils xs
extractSect _ [] = []
isHeader1 :: Block -> Bool
isHeader1 (Header 1 _) = True
isHeader1 _ = False
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