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|
{-# LANGUAGE OverloadedStrings #-}
module Main where
import Text.Emoji.Types
import Text.Emoji.DataFiles.EmojiTest
import Control.Applicative ((<|>))
import Control.Exception
import Control.Monad (join)
import Data.Attoparsec.Text (parse, feed, IResult (..))
import Data.Maybe (fromJust)
import qualified Data.Text as T
import qualified Data.Text.Encoding as T
import qualified Data.Text.IO as T
import Data.Ratio
import Data.Word
import Numeric (showHex, fromRat, showFFloat)
import Conduit
import qualified Data.XML.Types as XT
import qualified Text.XML.Stream.Parse as XML
import qualified Text.XML.Stream.Render as XML
import qualified Options.Applicative as O
import System.Environment
import System.Exit
import System.Directory (doesFileExist)
import System.FilePath ((</>))
import System.IO
flattenFilter :: EmojiTestEntry -> [EmojiTestEntry]
flattenFilter x@(Entry _ _ _ _) = [x]
flattenFilter (Group _ _ gs) = concatMap flattenFilter gs
flattenFilter (Comment _) = []
data PosterException
= ParseError String
deriving Show
instance Exception PosterException where
displayException (ParseError e) = "Parse Error: " ++ e
parseEmojiTest :: MonadThrow m => ConduitT T.Text EmojiTestEntry m ()
parseEmojiTest = do
parseResult <- (flip feed) T.empty <$> -- send end of input
foldlC updateParser (Partial (parse emojiTestFile))
case parseResult of
Partial _ -> throwM $ ParseError "Not enough input"
Fail _ _ m -> throwM $ ParseError m
Done _ r -> yieldMany r
where updateParser r t =
case r of
Partial _ -> feed r t
_ -> r
svgPath :: Config -> EmojiTestEntry -> FilePath
svgPath cfg (Entry codes _ _ _) = cfgSvgPath cfg </> filename
where filename = prefix ++ codes_string ++ ".svg"
(prefix, con) = case cfgFontType cfg of
Twemoji -> ("", '-')
Noto -> ("emoji_u", '_')
codes_string = tail . foldr (\f acc -> con:(f acc)) "" $
map showHex codes
svgPath _ _ = error "svgPath should receive only entries"
badElement :: XT.Name -> Bool
badElement n = XT.nameLocalName n == "image"
filterXMLEvent :: XT.Event -> Bool
filterXMLEvent ev =
case ev of
XT.EventBeginDocument -> False
XT.EventEndDocument -> False
XT.EventBeginDoctype _ _ -> False
XT.EventEndDoctype -> False
XT.EventInstruction _ -> False
XT.EventComment _ -> False
-- no image inclusions (only 4 times in noto or something)
XT.EventBeginElement n _ -> not (badElement n)
XT.EventEndElement n -> not (badElement n)
_ -> True
data SVGState
= SVGState
{ svgEmojiWidth :: Rational -- ^ width in cm
, svgEmojiHeight :: Rational -- ^ height in cm
, svgXEmojiCount :: Integer
, svgXIndex :: Integer
, svgYIndex :: Integer
}
advance :: SVGState -> SVGState
advance st =
if svgXEmojiCount st == svgXIndex st + 1
then st { svgXIndex = 0
, svgYIndex = svgYIndex st + 1 }
else st { svgXIndex = svgXIndex st + 1 }
type XMLAttrs = [(XT.Name, [XT.Content])]
setAttribute :: XT.Name -> XT.Content -> XMLAttrs -> XMLAttrs
setAttribute n c [] = [(n, [c])]
setAttribute n c ((name,content):xs) =
if name == n
then (n, [c]) : xs
else (name, content) : setAttribute n c xs
ratC :: Rational -> XT.Content
ratC r = XT.ContentText .
(<> "cm") . T.pack $ (showFFloat (Just 2) . fromRat) r ""
svgPosition :: SVGState -> XT.Event -> XT.Event
svgPosition st ev =
case ev of
XT.EventBeginElement n attrs ->
let w = svgEmojiWidth st
h = svgEmojiHeight st
x = w * fromIntegral (svgXIndex st)
y = h * fromIntegral (svgYIndex st)
in if XT.nameLocalName n == "svg"
then XT.EventBeginElement n
$ setAttribute "width" (ratC w)
. setAttribute "height" (ratC h)
. setAttribute "x" (ratC x)
. setAttribute "y" (ratC y)
$ attrs
else ev
_ -> ev
concatXMLEvs :: Monad m => Config -> ConduitT [XT.Event] XT.Event m ()
concatXMLEvs cfg =
let a0Width = 841 % 10
a0Height = 1189 % 10
emojiPerRow = cfgEmojiPerRow cfg
emojiSide = a0Width / fromIntegral emojiPerRow
initialState = SVGState
{ svgEmojiWidth = emojiSide
, svgEmojiHeight = emojiSide
, svgXEmojiCount = emojiPerRow
, svgXIndex = 0
, svgYIndex = 0
}
addSVG :: [XT.Event] -> SVGState -> (SVGState, [XT.Event])
addSVG els st = (advance st, map (svgPosition st) els)
in do
yield XT.EventBeginDocument
yield $ XT.EventBeginElement "{http://www.w3.org/2000/svg}svg"
[ ("width", [ ratC a0Width ])
, ("height", [ ratC a0Height ]) ]
concatMapAccumC addSVG initialState
yield $ XT.EventEndElement "{http://www.w3.org/2000/svg}svg"
yield XT.EventEndDocument
buildSVG :: Config -> IO ()
buildSVG cfg = withSourceFile (cfgEmojiTest cfg) $ \source -> do
runConduit
$ source
.| decodeUtf8C
.| parseEmojiTest
.| concatMapC flattenFilter
.| mapC (svgPath cfg)
.| filterMC doesFileExist
.| mapMC (\f -> withSourceFile f $ \xml -> runConduit $ xml
.| XML.detectUtf
.| XML.parseText XML.def
.| filterC filterXMLEvent
.| sinkList)
.| concatXMLEvs cfg
.| XML.renderBytes XML.def
.| stdoutC
data FontType = Twemoji | Noto
data Config
= Config
{ cfgSvgPath :: FilePath
, cfgEmojiTest :: FilePath
, cfgEmojiPerRow :: Integer
, cfgFontType :: FontType
}
config :: O.Parser Config
config = Config
<$> O.strOption
(O.long "svg-path"
<> O.metavar "PATH"
<> O.help "Directory containing the font's svgs")
<*> O.strOption
(O.long "emoji-test"
<> O.metavar "PATH"
<> O.help "Path to emoji-test.txt")
<*> O.option O.auto
(O.long "per-row"
<> O.metavar "INT"
<> O.value 100
<> O.help "how many emojis per row")
<*> (O.flag' Twemoji (O.long "twemoji" <> O.help "SVGs are from twemoji") <|>
O.flag' Noto (O.long "noto" <> O.help "SVGs are from noto-emoji"))
main :: IO ()
main = O.execParser opts >>= buildSVG
where opts = O.info config O.fullDesc
|
