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{-# 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
|