ClimbHome: Change misleading Seed assignment to nil value
This was "Seed = ClimbHome", but ClimbHome was a nil value.
This code still worked as the engine interpreted the nil value as empty string.
But it can be very misleading.
This changeset makes the Seed assignment more explicit by assigning the empty string directly.
The compability has been tested.
{-# LANGUAGE OverloadedStrings #-}
module Confuse where
import Numeric
import Data.Char
import Control.Monad
import qualified Data.ByteString as B
import qualified Data.ByteString.UTF8 as UTF8
import qualified Data.Map as Map
hx :: [Char] -> String
hx cs = let ch = (chr . fst . last . readHex $ cs) in
case ch of
'\'' -> "''"
'\\' -> "\\\\"
c -> c : []
conv :: String -> B.ByteString
conv s = B.concat ["('", UTF8.fromString i, "', '", UTF8.fromString r, "')"]
where
i :: String
i = hx s
r :: String
r = concatMap hx . words . takeWhile ((/=) ';') . tail $ dropWhile ((/=) '\t') s
convRules :: (B.ByteString, [B.ByteString]) -> B.ByteString
convRules (a, b) = B.concat ["<reset>", u a, "</reset>\n<s>", B.concat $ map u b, "</s>"]
where
u a = B.concat ["\\","u",a]
toPair :: String -> (B.ByteString, [B.ByteString])
toPair s = (UTF8.fromString $ takeWhile isHexDigit s, map UTF8.fromString . words . takeWhile ((/=) ';') . tail $ dropWhile ((/=) '\t') s)
main = do
ll <- liftM (filter (isHexDigit . head) . filter (not . null) . lines) $ readFile "confusables.txt"
B.writeFile "rules.txt" . B.intercalate "\n" . map convRules . Map.toList . Map.fromList . filter notTooLong . filter fits16bit . map toPair $ ll
where
notTooLong = (>) 6 . length . snd
fits16bit (a, b) = let f = (>) 5 . B.length in all f $ a:b