Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with
or
.
Download ZIP
Fetching contributors…

Cannot retrieve contributors at this time

57 lines (48 sloc) 1.761 kB
-- This script processes the following source file:
--
-- http://unicode.org/Public/UNIDATA/SpecialCasing.txt
module SpecialCasing
(
SpecialCasing(..)
, Case(..)
, parseSC
, mapSC
) where
import Arsec
data SpecialCasing = SC { scComments :: [Comment], scCasing :: [Case] }
deriving (Show)
data Case = Case {
code :: Char
, lower :: [Char]
, title :: [Char]
, upper :: [Char]
, conditions :: String
, name :: String
} deriving (Eq, Ord, Show)
entries :: Parser SpecialCasing
entries = SC <$> many comment <*> many (entry <* many comment)
where
entry = Case <$> unichar <* semi
<*> unichars
<*> unichars
<*> unichars
<*> manyTill anyToken (string "# ")
<*> manyTill anyToken (char '\n')
parseSC :: FilePath -> IO (Either ParseError SpecialCasing)
parseSC name = parse entries name <$> readFile name
mapSC :: String -> (Case -> String) -> (Char -> Char) -> SpecialCasing
-> [String]
mapSC which access twiddle (SC _ ms) =
typ ++ (map nice . filter p $ ms) ++ [last]
where
typ = [which ++ "Mapping :: forall s. Char -> s -> Step (CC s) Char"
,"{-# NOINLINE " ++ which ++ "Mapping #-}"]
last = which ++ "Mapping c s = Yield (to" ++ ucFirst which ++ " c) (CC s '\\0' '\\0')"
nice c = "-- " ++ name c ++ "\n" ++
which ++ "Mapping " ++ showC (code c) ++ " s = Yield " ++ x ++ " (CC s " ++ y ++ " " ++ z ++ ")"
where [x,y,z] = (map showC . take 3) (access c ++ repeat '\0')
p c = [k] /= a && a /= [twiddle k] && null (conditions c)
where a = access c
k = code c
ucFirst (c:cs) = toUpper c : cs
ucFirst [] = []
Jump to Line
Something went wrong with that request. Please try again.