- Install stack: http://docs.haskellstack.org/en/stable/README/.
- Make executable:
chmod u+x extract.hs. - Run:
./extract.hs run somefile.srt.
Last active
April 30, 2016 02:07
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A parser for some random Drone format
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| 1 | |
| 00:00:01,000 --> 00:00:02,000 | |
| HOME(110.9043,-2.7954) 2016.04.17 09:59:08 | |
| GPS(110.9038,-2.7953,19) BAROMETER:500.0 | |
| ISO:100 Shutter:60 EV: Fnum:F2.8 | |
| 2 | |
| 00:00:02,000 --> 00:00:03,000 | |
| HOME(110.9043,-2.7954) 2016.04.17 09:59:09 | |
| GPS(110.9038,-2.7953,19) BAROMETER:500.0 | |
| ISO:100 Shutter:60 EV: Fnum:F2.8 | |
| 3 | |
| 00:00:03,000 --> 00:00:04,000 | |
| HOME(110.9043,-2.7954) 2016.04.17 09:59:10 | |
| GPS(110.9038,-2.7953,19) BAROMETER:499.9 | |
| ISO:100 Shutter:60 EV: Fnum:F2.8 | |
| 4 | |
| 00:00:04,000 --> 00:00:05,000 | |
| HOME(110.9043,-2.7954) 2016.04.17 09:59:11 | |
| GPS(110.9038,-2.7953,19) BAROMETER:499.9 | |
| ISO:100 Shutter:60 EV: Fnum:F2.8 | |
| 5 | |
| 00:00:05,000 --> 00:00:06,000 | |
| HOME(110.9043,-2.7954) 2016.04.17 09:59:12 | |
| GPS(110.9038,-2.7953,19) BAROMETER:499.9 | |
| ISO:100 Shutter:60 EV: Fnum:F2.8 | |
| 6 | |
| 00:00:06,000 --> 00:00:07,000 | |
| HOME(110.9043,-2.7954) 2016.04.17 09:59:13 | |
| GPS(110.9038,-2.7953,19) BAROMETER:499.9 | |
| ISO:100 Shutter:60 EV: Fnum:F2.8 | |
| 7 | |
| 00:00:07,000 --> 00:00:08,000 | |
| HOME(110.9043,-2.7954) 2016.04.17 09:59:14 | |
| GPS(110.9038,-2.7953,19) BAROMETER:499.9 | |
| ISO:100 Shutter:60 EV: Fnum:F2.8 | |
| 8 | |
| 00:00:08,000 --> 00:00:09,000 | |
| HOME(110.9043,-2.7954) 2016.04.17 09:59:15 | |
| GPS(110.9038,-2.7953,19) BAROMETER:499.9 | |
| ISO:100 Shutter:60 EV: Fnum:F2.8 | |
| 9 | |
| 00:00:09,000 --> 00:00:10,000 | |
| HOME(110.9043,-2.7954) 2016.04.17 09:59:16 | |
| GPS(110.9038,-2.7953,19) BAROMETER:499.9 | |
| ISO:100 Shutter:60 EV: Fnum:F2.8 | |
| 10 | |
| 00:00:10,000 --> 00:00:11,000 | |
| HOME(110.9043,-2.7954) 2016.04.17 09:59:17 | |
| GPS(110.9038,-2.7953,19) BAROMETER:499.9 | |
| ISO:100 Shutter:60 EV: Fnum:F2.8 | |
| 11 | |
| 00:00:11,000 --> 00:00:12,000 | |
| HOME(110.9043,-2.7954) 2016.04.17 09:59:18 | |
| GPS(110.9038,-2.7953,19) BAROMETER:499.9 | |
| ISO:100 Shutter:60 EV: Fnum:F2.8 | |
| 12 | |
| 00:00:12,000 --> 00:00:13,000 | |
| HOME(110.9043,-2.7954) 2016.04.17 09:59:19 | |
| GPS(110.9038,-2.7953,19) BAROMETER:500.0 | |
| ISO:100 Shutter:60 EV: Fnum:F2.8 | |
| 13 | |
| 00:00:13,000 --> 00:00:14,000 | |
| HOME(110.9043,-2.7954) 2016.04.17 09:59:20 | |
| GPS(110.9038,-2.7953,19) BAROMETER:500.0 | |
| ISO:100 Shutter:60 EV: Fnum:F2.8 | |
| 14 | |
| 00:00:14,000 --> 00:00:15,000 | |
| HOME(110.9043,-2.7954) 2016.04.17 09:59:21 | |
| GPS(110.9038,-2.7953,19) BAROMETER:500.0 | |
| ISO:100 Shutter:60 EV: Fnum:F2.8 | |
| 15 | |
| 00:00:15,000 --> 00:00:16,000 | |
| HOME(110.9043,-2.7954) 2016.04.17 09:59:22 | |
| GPS(110.9038,-2.7953,19) BAROMETER:500.0 | |
| ISO:100 Shutter:60 EV: Fnum:F2.8 | |
| 16 | |
| 00:00:16,000 --> 00:00:17,000 | |
| HOME(110.9043,-2.7954) 2016.04.17 09:59:23 | |
| GPS(110.9038,-2.7953,19) BAROMETER:500.0 | |
| ISO:100 Shutter:60 EV: Fnum:F2.8 | |
| 17 | |
| 00:00:17,000 --> 00:00:18,000 | |
| HOME(110.9043,-2.7954) 2016.04.17 09:59:24 | |
| GPS(110.9038,-2.7953,19) BAROMETER:500.0 | |
| ISO:100 Shutter:60 EV: Fnum:F2.8 | |
| 18 | |
| 00:00:18,000 --> 00:00:19,000 | |
| HOME(110.9043,-2.7954) 2016.04.17 09:59:25 | |
| GPS(110.9038,-2.7953,19) BAROMETER:500.0 | |
| ISO:100 Shutter:60 EV: Fnum:F2.8 | |
| 19 | |
| 00:00:19,000 --> 00:00:20,000 | |
| HOME(110.9043,-2.7954) 2016.04.17 09:59:26 | |
| GPS(110.9038,-2.7953,19) BAROMETER:500.0 | |
| ISO:100 Shutter:60 EV: Fnum:F2.8 |
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| #!/usr/bin/env stack | |
| -- stack --install-ghc runghc --package megaparsec | |
| {-# LANGUAGE OverloadedStrings #-} | |
| module Main (main) where | |
| import Data.Monoid ((<>)) | |
| import Data.Text (Text, pack, intercalate) | |
| import qualified Data.Text.IO as TIO (readFile, putStrLn) | |
| import Text.Megaparsec | |
| import Text.Megaparsec.Text | |
| import Text.Megaparsec.Lexer (float, integer, signed) | |
| import System.Environment | |
| import Text.Printf | |
| data Timestamp = Timestamp Integer Integer Integer Integer deriving (Show) | |
| data Coordinate = Coordinate String String deriving (Show) | |
| data DateTime = DateTime | |
| { _dtYear :: Integer | |
| , _dtMonth :: Integer | |
| , _dtDay :: Integer | |
| , _dtHour :: Integer | |
| , _dtMinute :: Integer | |
| , _dtSecond :: Integer | |
| } deriving (Show) | |
| data LogEntry = LogEntry | |
| { _leID :: Integer | |
| , _leStartTime :: Timestamp | |
| , _leEndTime :: Timestamp | |
| , _leHomeCoordinate :: Coordinate | |
| , _leDate :: DateTime | |
| , _leGPSCoordinate :: Coordinate | |
| , _leBarometer :: Double | |
| , _leISO :: Integer | |
| , _leShutter :: Integer | |
| , _leFnum :: Double | |
| } deriving (Show) | |
| coordinate :: Parser Coordinate | |
| coordinate = do | |
| (choice $ string <$> ["HOME", "GPS"]) >> char '(' | |
| let coord = manyTill (digitChar <|> char ',' <|> char '-' <|> char '.') | |
| first <- coord (char ',') | |
| second <- coord (char ')') | |
| pure $ Coordinate first second | |
| timestamp :: Parser Timestamp | |
| timestamp = do | |
| hour <- integer | |
| char ':' | |
| minute <- integer | |
| char ':' | |
| second <- integer | |
| char ',' | |
| fraction <- integer | |
| pure $ Timestamp hour minute second fraction | |
| datetime :: Parser DateTime | |
| datetime = do | |
| year <- integer | |
| char '.' | |
| month <- integer | |
| char '.' | |
| day <- integer | |
| space | |
| hour <- integer | |
| char ':' | |
| minute <- integer | |
| char ':' | |
| second <- integer | |
| pure $ DateTime year month day hour minute second | |
| entry :: Parser LogEntry | |
| entry = do | |
| id <- integer | |
| eol | |
| startTime <- timestamp | |
| string " --> " | |
| endTime <- timestamp | |
| eol | |
| homeCoords <- coordinate | |
| space | |
| dt <- datetime | |
| eol | |
| gpsCoords <- coordinate | |
| string " BAROMETER:" | |
| barometer <- float | |
| eol | |
| string "ISO:" | |
| iso <- integer | |
| string " Shutter:" | |
| shutter <- integer | |
| string " EV: Fnum:F" | |
| fnum <- signed space float | |
| space | |
| pure $ LogEntry | |
| id startTime endTime homeCoords dt gpsCoords barometer iso shutter fnum | |
| entries :: Parser [LogEntry] | |
| entries = many entry | |
| tshow :: (Show a) => a -> Text | |
| tshow = pack . show | |
| rt :: Integer -> Text | |
| rt = pack . printf "%02d" | |
| renderCoordinate :: Coordinate -> Text | |
| renderCoordinate (Coordinate x y) = (pack x) <> "," <> (pack y) | |
| renderTimestamp :: Timestamp -> Text | |
| renderTimestamp (Timestamp h m s d) | |
| = rt h <> ":" <> rt m <> ":" <> rt s <> "," <> tshow d | |
| renderDateTime :: DateTime -> Text | |
| renderDateTime (DateTime y mo d h mi s) | |
| = rt mo <> "/" <> rt d <> "/" <> tshow y <> " " | |
| <> rt h <> ":" <> rt mi <> ":" <> rt s | |
| renderEntry :: LogEntry -> Text | |
| renderEntry x = intercalate "," $ map (\y -> "\"" <> y x <> "\"") | |
| [ tshow . _leID | |
| , renderTimestamp . _leStartTime | |
| , renderTimestamp . _leEndTime | |
| , renderCoordinate . _leHomeCoordinate | |
| , renderDateTime . _leDate | |
| , renderCoordinate . _leGPSCoordinate | |
| , tshow . _leBarometer | |
| , tshow . _leISO | |
| , tshow . _leShutter | |
| , tshow . _leFnum | |
| ] | |
| main :: IO () | |
| main = do | |
| args <- getArgs | |
| case args of | |
| [] -> putStrLn "Usage: extract <filename>" | |
| file:_ -> do | |
| result <- (runParser entries file <$> TIO.readFile file) | |
| case result of | |
| Right result' -> do | |
| putStrLn ("id,start_time,end_time,home,date,gps,barometer,iso," | |
| <> "shutter,fnum") | |
| mapM_ (TIO.putStrLn . renderEntry) result' | |
| Left err -> print err |
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| id | start_time | end_time | home | date | gps | barometer | iso | shutter | fnum | |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 00:00:01,0 | 00:00:02,0 | 110.9043,-2.7954 | 04/17/2016 09:59:08 | 110.9038,-2.7953,19 | 500.0 | 100 | 60 | 2.8 | |
| 2 | 00:00:02,0 | 00:00:03,0 | 110.9043,-2.7954 | 04/17/2016 09:59:09 | 110.9038,-2.7953,19 | 500.0 | 100 | 60 | 2.8 | |
| 3 | 00:00:03,0 | 00:00:04,0 | 110.9043,-2.7954 | 04/17/2016 09:59:10 | 110.9038,-2.7953,19 | 499.9 | 100 | 60 | 2.8 | |
| 4 | 00:00:04,0 | 00:00:05,0 | 110.9043,-2.7954 | 04/17/2016 09:59:11 | 110.9038,-2.7953,19 | 499.9 | 100 | 60 | 2.8 | |
| 5 | 00:00:05,0 | 00:00:06,0 | 110.9043,-2.7954 | 04/17/2016 09:59:12 | 110.9038,-2.7953,19 | 499.9 | 100 | 60 | 2.8 | |
| 6 | 00:00:06,0 | 00:00:07,0 | 110.9043,-2.7954 | 04/17/2016 09:59:13 | 110.9038,-2.7953,19 | 499.9 | 100 | 60 | 2.8 | |
| 7 | 00:00:07,0 | 00:00:08,0 | 110.9043,-2.7954 | 04/17/2016 09:59:14 | 110.9038,-2.7953,19 | 499.9 | 100 | 60 | 2.8 | |
| 8 | 00:00:08,0 | 00:00:09,0 | 110.9043,-2.7954 | 04/17/2016 09:59:15 | 110.9038,-2.7953,19 | 499.9 | 100 | 60 | 2.8 | |
| 9 | 00:00:09,0 | 00:00:10,0 | 110.9043,-2.7954 | 04/17/2016 09:59:16 | 110.9038,-2.7953,19 | 499.9 | 100 | 60 | 2.8 | |
| 10 | 00:00:10,0 | 00:00:11,0 | 110.9043,-2.7954 | 04/17/2016 09:59:17 | 110.9038,-2.7953,19 | 499.9 | 100 | 60 | 2.8 | |
| 11 | 00:00:11,0 | 00:00:12,0 | 110.9043,-2.7954 | 04/17/2016 09:59:18 | 110.9038,-2.7953,19 | 499.9 | 100 | 60 | 2.8 | |
| 12 | 00:00:12,0 | 00:00:13,0 | 110.9043,-2.7954 | 04/17/2016 09:59:19 | 110.9038,-2.7953,19 | 500.0 | 100 | 60 | 2.8 | |
| 13 | 00:00:13,0 | 00:00:14,0 | 110.9043,-2.7954 | 04/17/2016 09:59:20 | 110.9038,-2.7953,19 | 500.0 | 100 | 60 | 2.8 | |
| 14 | 00:00:14,0 | 00:00:15,0 | 110.9043,-2.7954 | 04/17/2016 09:59:21 | 110.9038,-2.7953,19 | 500.0 | 100 | 60 | 2.8 | |
| 15 | 00:00:15,0 | 00:00:16,0 | 110.9043,-2.7954 | 04/17/2016 09:59:22 | 110.9038,-2.7953,19 | 500.0 | 100 | 60 | 2.8 | |
| 16 | 00:00:16,0 | 00:00:17,0 | 110.9043,-2.7954 | 04/17/2016 09:59:23 | 110.9038,-2.7953,19 | 500.0 | 100 | 60 | 2.8 | |
| 17 | 00:00:17,0 | 00:00:18,0 | 110.9043,-2.7954 | 04/17/2016 09:59:24 | 110.9038,-2.7953,19 | 500.0 | 100 | 60 | 2.8 | |
| 18 | 00:00:18,0 | 00:00:19,0 | 110.9043,-2.7954 | 04/17/2016 09:59:25 | 110.9038,-2.7953,19 | 500.0 | 100 | 60 | 2.8 | |
| 19 | 00:00:19,0 | 00:00:20,0 | 110.9043,-2.7954 | 04/17/2016 09:59:26 | 110.9038,-2.7953,19 | 500.0 | 100 | 60 | 2.8 |
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