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avoid using MonadFail in ParseDuration

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There's no instance for Either String, so that makes it not as useful as
it could be, so instead just return an Either String.
This commit is contained in:
Joey Hess 2020-08-15 15:53:35 -04:00
parent ad64079b44
commit 4c58433c48
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7 changed files with 13 additions and 15 deletions
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4
Command/Expire.hs
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@ -103,8 +103,8 @@ parseExpire ps = do
return (Just r, parsetime now t)
parsetime _ "never" = Nothing
parsetime now s = case parseDuration s of
Nothing -> giveup $ "bad expire time: " ++ s
Just d -> Just (now - durationToPOSIXTime d)
Right d -> Just (now - durationToPOSIXTime d)
Left e -> giveup $ "bad expire time: " ++ e
parseActivity :: MonadFail m => String -> m Activity
parseActivity s = case readish s of