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{-# LANGUAGE CPP #-}
{-# LANGUAGE TemplateHaskellQuotes #-}
{-# LANGUAGE ViewPatterns #-}
#undef WINDOWS
#define POSIX
#define IS_WINDOWS False
#define FILEPATH_NAME PosixPath
#define OSSTRING_NAME PosixString
#define WORD_NAME PosixChar
#include "Common.hs"
-- | QuasiQuote a 'PosixPath'. This accepts Unicode characters
-- and encodes as UTF-8. Runs 'isValid' on the input.
pstr :: QuasiQuoter
pstr =
QuasiQuoter
{ quoteExp = \s -> do
ps <- either (fail . show) pure $ encodeWith (mkUTF8 ErrorOnCodingFailure) s
when (not $ isValid ps) $ fail ("filepath not valid: " ++ show ps)
lift ps
, quotePat = \s -> do
osp' <- either (fail . show) pure . encodeWith (mkUTF8 ErrorOnCodingFailure) $ s
when (not $ isValid osp') $ fail ("filepath not valid: " ++ show osp')
[p|((==) osp' -> True)|]
, quoteType = \_ ->
fail "illegal QuasiQuote (allowed as expression or pattern only, used as a type)"
, quoteDec = \_ ->
fail "illegal QuasiQuote (allowed as expression or pattern only, used as a declaration)"
}
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