Safe Haskell	None
Language	Haskell2010

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.

encodeWith Source

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:

1. 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)
2. 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.

decodeWith Source

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:

1. 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)
2. 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

QuasiQuote an OsPath. This accepts Unicode characters and encodes as UTF-8 on unix and UTF-16LE on windows. Runs isValid on the input. If used as a pattern, requires turning on the ViewPatterns extension.

unpack :: OsPath -> [OsChar] Source

Unpack an OsPath to a list of OsChar.

pack :: [OsChar] -> OsPath Source

Pack a list of OsChar to an OsPath.

Note that using this in conjunction with unsafeFromChar to convert from [Char] to OsPath is probably not what you want, because it will truncate unicode code points.