From e9e80fc389365e24d4300d7d5390c7d833a96c50 Mon Sep 17 00:00:00 2001
From: aarne <aarne@cs.chalmers.se>
Date: Wed, 25 Jun 2008 16:54:35 +0000
Subject: changed names of resource-1.3; added a note on homepage on release

---
 src/PGF/CId.hs | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 src/PGF/CId.hs

(limited to 'src/PGF/CId.hs')

diff --git a/src/PGF/CId.hs b/src/PGF/CId.hs
new file mode 100644
index 000000000..161529308
--- /dev/null
+++ b/src/PGF/CId.hs
@@ -0,0 +1,18 @@
+module PGF.CId (CId(..), wildCId, mkCId, prCId) where
+
+import Data.ByteString.Char8 as BS
+
+-- | An abstract data type that represents
+-- function identifier in PGF.
+newtype CId = CId BS.ByteString deriving (Eq,Ord,Show)
+
+wildCId :: CId
+wildCId = CId (BS.singleton '_')
+
+-- | Creates a new identifier from 'String'
+mkCId :: String -> CId
+mkCId s = CId (BS.pack s)
+
+-- | Renders the identifier as 'String'
+prCId :: CId -> String
+prCId (CId x) = BS.unpack x
-- 
cgit v1.2.3