System.AbstractFilePath.Internal

Documentation

toAbstractFilePathUtf :: MonadThrow m => String -> m AbstractFilePath

Convert a String.

On windows this encodes as UTF16, which is a pretty good guess. On unix this encodes as UTF8, which is a good guess.

Throws a EncodingException if encoding fails.

toAbstractFilePathEnc

Arguments

:: TextEncoding

unix text encoding

-> TextEncoding

windows text encoding

-> String

-> Either EncodingException AbstractFilePath

Like toAbstractFilePathUtf, except allows to provide encodings.

toAbstractFilePathFS :: String -> IO AbstractFilePath

Like toAbstractFilePathUtf, except on unix this uses the current filesystem locale for encoding instead of always UTF8.

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).

Throws EncodingException if decoding fails.

fromAbstractFilePathUtf :: MonadThrow m => AbstractFilePath -> m String

Partial unicode friendly decoding.

On windows this decodes as UTF16-LE (which is the expected filename encoding). On unix this decodes as UTF8 (which is a good guess). Note that filenames on unix are encoding agnostic char arrays.

Throws a EncodingException if decoding fails.

Note that filenames of different encodings may have the same String representation, although they're not the same byte-wise.

fromAbstractFilePathEnc

Arguments

:: TextEncoding

unix text encoding

-> TextEncoding

windows text encoding

-> AbstractFilePath

-> Either EncodingException String

Like fromAbstractFilePathUtf, except on unix this uses the provided TextEncoding for decoding.

fromAbstractFilePathFS :: AbstractFilePath -> IO String

Like fromAbstractFilePathUtf, except on unix this uses the current locale for decoding instead of always UTF8. On windows, uses UTF-16LE.

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).

Throws EncodingException if decoding fails.

bytesToAFP :: MonadThrow m => ByteString -> m AbstractFilePath

Constructs an AbstractFilePath 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).

mkAbstractFilePath :: ByteString -> Q Exp

afp :: QuasiQuoter

QuasiQuote an AbstractFilePath. This accepts Unicode characters and encodes as UTF-8 on unix and UTF-16 on windows. Runs filepathIsValid on the input.

unpackAFP :: AbstractFilePath -> [OsChar]

Unpack an AbstractFilePath to a list of OsChar.

packAFP :: [OsChar] -> AbstractFilePath

Pack a list of OsChar to an AbstractFilePath.

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