From 949b0b2e417cbc5e7be18bb5bf0bbca1a8956a1f Mon Sep 17 00:00:00 2001
From: Sam Truzjan <pxqr.sta@gmail.com>
Date: Fri, 27 Sep 2013 01:24:44 +0400
Subject: Use type synonym for base32hex encoded data

---
 src/Data/ByteString/Base32/Hex.hs | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/Data/ByteString/Base32/Hex.hs b/src/Data/ByteString/Base32/Hex.hs
index 762d471..f68ad31 100644
--- a/src/Data/ByteString/Base32/Hex.hs
+++ b/src/Data/ByteString/Base32/Hex.hs
@@ -14,7 +14,8 @@
 --
 {-# LANGUAGE BangPatterns #-}
 module Data.ByteString.Base32.Hex
-       ( encode
+       ( Base32Hex
+       , encode
        , decode
        , decodeLenient
        ) where
@@ -24,6 +25,8 @@ import Data.ByteString.Base32.Internal
 import Data.List as L
 
 
+type Base32Hex = ByteString
+
 encW5 :: Word5 -> Word8
 encW5 !x
   |  x <= 9   = 48 {- c2w '0' -}      + x
@@ -33,7 +36,7 @@ encTable :: EncTable
 encTable = BS.pack $ L.map encW5 [0..31]
 
 -- | Encode a bytestring into base32hex form.
-encode :: ByteString -> ByteString
+encode :: ByteString -> Base32Hex
 encode = unpack5 encTable
 
 decW5 :: Word8 -> Word5
@@ -50,7 +53,7 @@ decTable :: DecTable
 decTable = BS.pack $ L.map decW5 [minBound .. maxBound]
 
 -- | Decode a base32hex encoded bytestring.
-decode :: ByteString -> ByteString
+decode :: Base32Hex -> ByteString
 decode = pack5 decTable
 
 decodeLenient :: ByteString -> ByteString
-- 
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