{-# LINE 1 "src/Text/Sundown/Markdown/Foreign.hsc" #-}
{-# Language ForeignFunctionInterface #-}
{-# LINE 2 "src/Text/Sundown/Markdown/Foreign.hsc" #-}

module Text.Sundown.Markdown.Foreign
       ( Callbacks
       , Extensions (..)
       , c_sd_markdown_new
       , c_sd_markdown_render
       , c_sd_markdown_free
       ) where

import Foreign
import Foreign.C.String
import Foreign.C.Types
import Text.Sundown.Buffer.Foreign
import Text.Sundown.Flag


{-# LINE 18 "src/Text/Sundown/Markdown/Foreign.hsc" #-}

-- | A set of switches to enable or disable markdown features.
data Extensions = Extensions
  { extNoIntraEmphasis :: Bool
    -- ^ Turn off underscores insode a word does designating emphasis.
  , extTables :: Bool
  , extFencedCode :: Bool
    -- ^ Turns on a non-indentation form of code-blocks, by blocking off a
    --   regionwith ~ or \`.
  , extAutolink :: Bool
    -- ^ Turn things that look like URLs and email addresses into links
  , extStrikethrough :: Bool
    -- ^ Surround text with `~` to designate it as struck through
  , extSpaceHeaders :: Bool
  , extSuperscript :: Bool
  , extLaxSpacing :: Bool
    -- ^ Allow blocks inside of paragraphs, instead requireing tags to be on
    --   separate lines
  }

instance Flag Extensions where
  flagIndexes exts = [ (1, extNoIntraEmphasis exts)
{-# LINE 40 "src/Text/Sundown/Markdown/Foreign.hsc" #-}
                     , (2, extTables exts)
{-# LINE 41 "src/Text/Sundown/Markdown/Foreign.hsc" #-}
                     , (4, extFencedCode exts)
{-# LINE 42 "src/Text/Sundown/Markdown/Foreign.hsc" #-}
                     , (8, extAutolink exts)
{-# LINE 43 "src/Text/Sundown/Markdown/Foreign.hsc" #-}
                     , (16, extStrikethrough exts)
{-# LINE 44 "src/Text/Sundown/Markdown/Foreign.hsc" #-}
                     , (64, extSpaceHeaders exts)
{-# LINE 45 "src/Text/Sundown/Markdown/Foreign.hsc" #-}
                     , (128, extSuperscript exts)
{-# LINE 46 "src/Text/Sundown/Markdown/Foreign.hsc" #-}
                     , (256, extLaxSpacing exts)
{-# LINE 47 "src/Text/Sundown/Markdown/Foreign.hsc" #-}
                     ]


data Callbacks

instance Storable Callbacks where
  sizeOf _ = ((104))
{-# LINE 54 "src/Text/Sundown/Markdown/Foreign.hsc" #-}
  alignment _ = alignment (undefined :: Ptr ())
  peek _ = error "Callbacks.peek is not implemented"
  poke _ _ = error "Callbacks.poke is not implemented"

data Markdown

instance Storable Markdown where
  sizeOf _ = error "Markdown.sizeOf is not implemented"
  alignment _ = alignment (undefined :: Ptr ())
  peek _ = error "Markdown.peek is not implemented"
  poke _ = error "Markdown.poke is not implemented"

c_sd_markdown_new :: Extensions -> CSize -> Ptr Callbacks -> Ptr () -> IO (Ptr Markdown)
c_sd_markdown_new extensions max_nesting callbacks opaque =
  c_sd_markdown_new' (toCUInt extensions) max_nesting callbacks opaque
foreign import ccall "markdown.h sd_markdown_new"
  c_sd_markdown_new' :: CUInt -> CSize -> Ptr Callbacks -> Ptr () -> IO (Ptr Markdown)

foreign import ccall "markdown.h sd_markdown_render"
  c_sd_markdown_render :: Ptr Buffer -> CString -> CSize -> Ptr Markdown -> IO ()

foreign import ccall "markdown.h sd_markdown_free"
  c_sd_markdown_free :: Ptr Markdown -> IO ()