-- Unlit phase
runPhase (Unlit sf) _stop dflags _basename _suff input_fn get_output_fn maybe_loc
- = do let unlit_flags = getOpts dflags opt_L
- -- The -h option passes the file name for unlit to put in a #line directive
+ = do
output_fn <- get_output_fn dflags (Cpp sf) maybe_loc
- SysTools.runUnlit dflags
- (map SysTools.Option unlit_flags ++
- [ SysTools.Option "-h"
- , SysTools.Option input_fn
- , SysTools.FileOption "" input_fn
- , SysTools.FileOption "" output_fn
- ])
+ let unlit_flags = getOpts dflags opt_L
+ flags = map SysTools.Option unlit_flags ++
+ [ -- The -h option passes the file name for unlit to
+ -- put in a #line directive
+ SysTools.Option "-h"
+ -- cpp interprets \b etc as escape sequences,
+ -- so we use / for filenames in pragmas
+ , SysTools.Option $ reslash Forwards $ normalise input_fn
+ , SysTools.FileOption "" input_fn
+ , SysTools.FileOption "" output_fn
+ ]
+
+ SysTools.runUnlit dflags flags
return (Cpp sf, dflags, maybe_loc, output_fn)
splitLongestPrefix,
escapeSpaces,
parseSearchPath,
+ Direction(..), reslash,
) where
-- XXX This define is a bit of a hack, and should be done more nicely
#else
searchPathSeparator = ':'
#endif
+
+data Direction = Forwards | Backwards
+
+reslash :: Direction -> FilePath -> FilePath
+reslash d = f
+ where f ('/' : xs) = slash : f xs
+ f ('\\' : xs) = slash : f xs
+ f (x : xs) = x : f xs
+ f "" = ""
+ slash = case d of
+ Forwards -> '/'
+ Backwards -> '\\'
\end{code}
+