diff options
Diffstat (limited to 'src/GF/Infra/PrintClass.hs')
| -rw-r--r-- | src/GF/Infra/PrintClass.hs | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/src/GF/Infra/PrintClass.hs b/src/GF/Infra/PrintClass.hs deleted file mode 100644 index 5e94984a6..000000000 --- a/src/GF/Infra/PrintClass.hs +++ /dev/null @@ -1,51 +0,0 @@ -module GF.Infra.PrintClass where - -import Data.List (intersperse) - -class Print a where - prt :: a -> String - prtList :: [a] -> String - prtList as = "[" ++ prtSep "," as ++ "]" - -prtSep :: Print a => String -> [a] -> String -prtSep sep = concat . intersperse sep . map prt - -prtBefore :: Print a => String -> [a] -> String -prtBefore before = prtBeforeAfter before "" - -prtAfter :: Print a => String -> [a] -> String -prtAfter after = prtBeforeAfter "" after - -prtBeforeAfter :: Print a => String -> String -> [a] -> String -prtBeforeAfter before after as = concat [ before ++ prt a ++ after | a <- as ] - -prtPairList :: (Print a, Print b) => String -> String -> [(a,b)] -> String -prtPairList comma sep xys = prtSep sep [ prt x ++ comma ++ prt y | (x,y) <- xys ] -prIO :: Print a => a -> IO () -prIO = putStr . prt - -instance Print a => Print [a] where - prt = prtList - -instance (Print a, Print b) => Print (a, b) where - prt (a, b) = "(" ++ prt a ++ "," ++ prt b ++ ")" - -instance (Print a, Print b, Print c) => Print (a, b, c) where - prt (a, b, c) = "(" ++ prt a ++ "," ++ prt b ++ "," ++ prt c ++ ")" - -instance (Print a, Print b, Print c, Print d) => Print (a, b, c, d) where - prt (a, b, c, d) = "(" ++ prt a ++ "," ++ prt b ++ "," ++ prt c ++ "," ++ prt d ++ ")" - -instance Print Char where - prt = return - prtList = id - -instance Print Int where - prt = show - -instance Print Integer where - prt = show - -instance Print a => Print (Maybe a) where - prt (Just a) = prt a - prt Nothing = "Nothing" |
