module Yi.Keymap.Vim.Ex.Commands.Delete (parse) where
import Control.Applicative (Alternative ((<|>)))
import Control.Monad (void)
import qualified Data.Attoparsec.Text as P (string, try, match)
import Data.Maybe (fromMaybe)
import Data.Text ()
import Data.Semigroup ((<>))
import Lens.Micro.Platform
import Yi.Buffer hiding (Delete)
import Yi.Keymap (Action (BufferA))
import Yi.Keymap.Vim.Common (EventString)
import qualified Yi.Keymap.Vim.Ex.Commands.Common as Common (parse, pureExCommand, parseRange)
import Yi.Keymap.Vim.Ex.Types (ExCommand (cmdAction, cmdShow))
parse :: EventString -> Maybe ExCommand
parse = Common.parse $ do
(rangeText, rangeB) <- over _2 (fromMaybe currentLineRegionB)
<$> P.match Common.parseRange
void $ P.try ( P.string "delete") <|> P.string "d"
return $ Common.pureExCommand {
cmdShow = rangeText <> "delete"
, cmdAction = BufferA $ deleteRegionB =<< rangeB
}
where currentLineRegionB = flip convertRegionToStyleB LineWise =<< regionOfB Line