intiial commit

1 files changed, 32 insertions, 0 deletions

diff --git a/Data/ByteStringBuilder.hs b/Data/ByteStringBuilder.hs
new file mode 100644
index 0000000..859d710
--- /dev/null
+++ b/Data/ByteStringBuilder.hs
@@ -0,0 +1,32 @@
+module Data.ByteStringBuilder where
+
+import Data.ByteString.Lazy as BSL
+import Data.ByteString.Lazy.Char8 as BSLC
+import Data.Word
+
+data ByteStringBuilder a = ByteStringBuilder ByteString a
+type Builder = ByteStringBuilder ()
+
+put :: ByteString -> Builder 
+put = flip ByteStringBuilder ()
+
+putS :: String -> Builder
+putS = put . BSLC.pack
+
+putSLn :: String -> Builder
+putSLn str = putS str >> putC '\n'
+
+putC :: Char -> Builder
+putC = put . BSLC.singleton
+
+putB :: Word8 -> Builder
+putB = put . BSL.singleton
+
+runBuilder :: Builder -> ByteString
+runBuilder (ByteStringBuilder bs _) = bs
+
+instance Monad ByteStringBuilder where
+    ByteStringBuilder a _ >> ByteStringBuilder b c = ByteStringBuilder (a `append` b) c
+    a@(ByteStringBuilder _ b) >>= func = a >> func b
+    return = ByteStringBuilder BSL.empty
+    fail = error