Safe Haskell | None |
---|---|
Language | Haskell2010 |
Synopsis
- encodeUtf :: MonadThrow m => FilePath -> m OsPath
- unsafeEncodeUtf :: HasCallStack => String -> OsString
- encodeWith :: TextEncoding -> TextEncoding -> FilePath -> Either EncodingException OsPath
- encodeFS :: FilePath -> IO OsPath
- decodeUtf :: MonadThrow m => OsPath -> m FilePath
- decodeWith :: TextEncoding -> TextEncoding -> OsPath -> Either EncodingException FilePath
- decodeFS :: OsPath -> IO FilePath
- fromBytes :: MonadThrow m => ByteString -> m OsPath
- osp :: QuasiQuoter
- unpack :: OsPath -> [OsChar]
- pack :: [OsChar] -> OsPath
Documentation
encodeUtf :: MonadThrow m => FilePath -> m OsPath Source #
Partial unicode friendly encoding.
On windows this encodes as UTF16-LE (strictly), which is a pretty good guess. On unix this encodes as UTF8 (strictly), which is a good guess.
Throws an EncodingException
if encoding fails. If the input does not
contain surrogate chars, you can use unsafeEncodeUtf
.
unsafeEncodeUtf :: HasCallStack => String -> OsString Source #
Unsafe unicode friendly encoding.
Like encodeUtf
, except it crashes when the input contains
surrogate chars. For sanitized input, this can be useful.
:: TextEncoding | unix text encoding |
-> TextEncoding | windows text encoding (wide char) |
-> FilePath | |
-> Either EncodingException OsPath |
Encode a FilePath
with the specified encoding.
Note: on windows, we expect a "wide char" encoding (e.g. UCS-2 or UTF-16). Anything
that works with Word16
boundaries. Picking an incompatible encoding may crash
filepath operations.
encodeFS :: FilePath -> IO OsPath Source #
Like encodeUtf
, except this mimics the behavior of the base library when doing filesystem
operations, which is:
- on unix, uses shady PEP 383 style encoding (based on the current locale, but PEP 383 only works properly on UTF-8 encodings, so good luck)
- on windows does permissive UTF-16 encoding, where coding errors generate Chars in the surrogate range
Looking up the locale requires IO. If you're not worried about calls
to setFileSystemEncoding
, then unsafePerformIO
may be feasible (make sure
to deeply evaluate the result to catch exceptions).
decodeUtf :: MonadThrow m => OsPath -> m FilePath Source #
Partial unicode friendly decoding.
On windows this decodes as UTF16-LE (strictly), which is a pretty good guess. On unix this decodes as UTF8 (strictly), which is a good guess.
Throws a EncodingException
if decoding fails.
:: TextEncoding | unix text encoding |
-> TextEncoding | windows text encoding |
-> OsPath | |
-> Either EncodingException FilePath |
Decode an OsPath
with the specified encoding.
decodeFS :: OsPath -> IO FilePath Source #
Like decodeUtf
, except this mimics the behavior of the base library when doing filesystem
operations, which is:
- on unix, uses shady PEP 383 style encoding (based on the current locale, but PEP 383 only works properly on UTF-8 encodings, so good luck)
- on windows does permissive UTF-16 encoding, where coding errors generate Chars in the surrogate range
Looking up the locale requires IO. If you're not worried about calls
to setFileSystemEncoding
, then unsafePerformIO
may be feasible (make sure
to deeply evaluate the result to catch exceptions).
fromBytes :: MonadThrow m => ByteString -> m OsPath Source #
Constructs an OsPath
from a ByteString.
On windows, this ensures valid UCS-2LE, on unix it is passed unchanged/unchecked.
Throws EncodingException
on invalid UCS-2LE on windows (although unlikely).
osp :: QuasiQuoter Source #