{-# LANGUAGE OverloadedStrings #-}
{-# OPTIONS_HADDOCK show-extensions #-}

-- |
-- Module      :  Yi.Keymap.Vim.Ex.Commands.Shell
-- License     :  GPL-2
-- Maintainer  :  yi-devel@googlegroups.com
-- Stability   :  experimental
-- Portability :  portable

module Yi.Keymap.Vim.Ex.Commands.Shell (parse) where

import           Control.Monad                    (void)
import qualified Data.Text                        as T (pack)
import qualified Data.Attoparsec.Text             as P (char,many1,satisfy)
import           Yi.Command                       (interactiveRun)
import           Yi.Keymap                        (Action (YiA))
import           Yi.Keymap.Vim.Common             (EventString)
import qualified Yi.Keymap.Vim.Ex.Commands.Common as Common (commandArgs, impureExCommand, parse)
import           Yi.Keymap.Vim.Ex.Types           (ExCommand (cmdAction, cmdShow))

parse :: EventString -> Maybe ExCommand
parse :: EventString -> Maybe ExCommand
parse = Parser ExCommand -> EventString -> Maybe ExCommand
Common.parse (Parser ExCommand -> EventString -> Maybe ExCommand)
-> Parser ExCommand -> EventString -> Maybe ExCommand
forall a b. (a -> b) -> a -> b
$ do
    Parser Text Char -> Parser Text ()
forall (f :: * -> *) a. Functor f => f a -> f ()
void (Parser Text Char -> Parser Text ())
-> Parser Text Char -> Parser Text ()
forall a b. (a -> b) -> a -> b
$ Char -> Parser Text Char
P.char Char
'!'
    Text
cmd <- String -> Text
T.pack (String -> Text) -> Parser Text String -> Parser Text Text
forall (f :: * -> *) a b. Functor f => (a -> b) -> f a -> f b
<$> Parser Text Char -> Parser Text String
forall (f :: * -> *) a. Alternative f => f a -> f [a]
P.many1 ((Char -> Bool) -> Parser Text Char
P.satisfy  (Char -> Char -> Bool
forall a. Eq a => a -> a -> Bool
/=Char
' '))
    [Text]
args <- Parser [Text]
Common.commandArgs
    ExCommand -> Parser ExCommand
forall a. a -> Parser Text a
forall (m :: * -> *) a. Monad m => a -> m a
return (ExCommand -> Parser ExCommand) -> ExCommand -> Parser ExCommand
forall a b. (a -> b) -> a -> b
$ ExCommand
Common.impureExCommand {
        cmdShow = "!"
      , cmdAction = YiA $ interactiveRun cmd args (const $ return ())
      }