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2 Commits
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30fbce3a2d
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3c8e497fa2
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@@ -1,6 +1,6 @@
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{
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"name": "purescript-csv-stream",
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"version": "v1.0.2",
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"version": "v1.0.3",
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"dependencies": {
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"csv-parse": "^5.5.5",
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"csv-stringify": "^6.4.6"
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@@ -1,7 +1,7 @@
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package:
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name: node-stream-pipes
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publish:
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version: '1.0.2'
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version: '1.0.3'
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license: 'GPL-3.0-or-later'
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location:
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githubOwner: 'cakekindel'
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@@ -1,24 +0,0 @@
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module Control.Monad.Cleanup where
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import Prelude
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import Control.Monad.Error.Class (class MonadError, liftEither, try)
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import Control.Monad.State (StateT, modify_, runStateT)
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import Data.Tuple.Nested ((/\))
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type CleanupT m = StateT (m Unit) m
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finally :: forall m. Monad m => (m Unit) -> CleanupT m Unit
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finally m = modify_ (_ *> m)
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runCleanup :: forall m a. Monad m => CleanupT m a -> m a
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runCleanup m = do
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a /\ final <- runStateT m (pure unit)
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final
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pure a
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runCleanupE :: forall e m a. MonadError e m => CleanupT m a -> m a
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runCleanupE m = do
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ea /\ final <- runStateT (try m) (pure unit)
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final
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liftEither ea
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@@ -3,7 +3,7 @@ module Pipes.Node.Stream where
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import Prelude
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import Control.Monad.Error.Class (throwError)
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import Control.Monad.Rec.Class (whileJust)
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import Control.Monad.Rec.Class (Step(..), tailRecM, whileJust)
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import Control.Monad.ST.Class (liftST)
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import Control.Monad.ST.Ref as STRef
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import Control.Monad.Trans.Class (lift)
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@@ -28,6 +28,8 @@ fromReadable r =
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let
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cleanup rmErrorListener = do
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liftEffect rmErrorListener
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pure $ Done unit
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go {error, cancel} = do
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liftAff $ delay $ wrap 0.0
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err <- liftEffect $ liftST $ STRef.read error
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@@ -35,12 +37,12 @@ fromReadable r =
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res <- liftEffect $ O.read r
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case res of
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O.ReadJust a -> yield (Just a) *> go {error, cancel}
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O.ReadWouldBlock -> lift (O.awaitReadableOrClosed r) *> go {error, cancel}
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O.ReadJust a -> yield (Just a) $> Loop {error, cancel}
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O.ReadWouldBlock -> lift (O.awaitReadableOrClosed r) $> Loop {error, cancel}
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O.ReadClosed -> yield Nothing *> cleanup cancel
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in do
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e <- liftEffect $ O.withErrorST r
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go e
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tailRecM go e
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-- | Convert a `Writable` stream to a `Pipe`.
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-- |
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@@ -52,6 +54,8 @@ fromWritable w =
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cleanup rmErrorListener = do
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liftEffect rmErrorListener
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liftEffect $ O.end w
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pure $ Done unit
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go {error, cancel} = do
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liftAff $ delay $ wrap 0.0
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err <- liftEffect $ liftST $ STRef.read error
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@@ -63,12 +67,14 @@ fromWritable w =
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Just a -> do
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res <- liftEffect $ O.write w a
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case res of
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O.WriteOk -> go {error, cancel}
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O.WriteWouldBlock -> liftAff (O.awaitWritableOrClosed w) *> go {error, cancel}
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O.WriteClosed -> pure unit
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O.WriteOk -> pure $ Loop {error, cancel}
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O.WriteWouldBlock -> do
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liftAff (O.awaitWritableOrClosed w)
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pure $ Loop {error, cancel}
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O.WriteClosed -> cleanup cancel
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in do
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r <- liftEffect $ O.withErrorST w
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go r
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tailRecM go r
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-- | Convert a `Transform` stream to a `Pipe`.
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-- |
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@@ -81,6 +87,7 @@ fromTransform t =
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liftEffect $ O.end t
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liftEffect $ removeErrorListener
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fromReadable t
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pure $ Done unit
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yieldFromReadableHalf = do
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res <- liftEffect (O.read t)
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case res of
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@@ -99,12 +106,14 @@ fromTransform t =
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res <- liftEffect $ O.write t a'
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yieldFromReadableHalf
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case res of
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O.WriteOk -> go {error, cancel}
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O.WriteWouldBlock -> lift (O.awaitWritableOrClosed t) *> go {error, cancel}
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O.WriteClosed -> cleanup cancel
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O.WriteOk -> pure $ Loop {error, cancel}
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O.WriteWouldBlock -> do
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lift (O.awaitWritableOrClosed t)
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pure $ Loop {error, cancel}
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in do
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r <- liftEffect $ O.withErrorST t
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go r
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tailRecM go r
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-- | Given a `Producer` of values, wrap them in `Just`.
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-- |
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