filepath-1.4.99.2: Library for manipulating FilePaths in a cross platform way.
Safe HaskellNone
LanguageHaskell2010

System.OsPath.Internal

Synopsis

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 a EncodingException if encoding fails.

encodeWith Source #

Arguments

:: TextEncoding

unix text encoding

-> TextEncoding

windows text encoding

-> FilePath 
-> Either EncodingException OsPath 

Encode a FilePath with the specified encoding.

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 #

Arguments

:: 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:

  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.

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.