Use OPTIONS rather than OPTIONS_GHC for pragmas

[ghc-hetmet.git] / compiler / utils / Pretty.lhs

diff --git a/compiler/utils/Pretty.lhs b/compiler/utils/Pretty.lhs
index f611d7a..b873ac7 100644 (file)
--- a/compiler/utils/Pretty.lhs
+++ b/compiler/utils/Pretty.lhs
@@ -87,7 +87,7 @@ Relative to John's original paper, there are the following new features:
     It is Really Useful in practice.
 
 2.  There is a paragraph-fill combinator, fsep, that's much like sep,
-    only it keeps fitting things on one line until itc can't fit any more.
+    only it keeps fitting things on one line until it can't fit any more.
 
 3.  Some random useful extra combinators are provided.  
         <+> puts its arguments beside each other with a space between them,
@@ -152,6 +152,13 @@ Relative to John's original paper, there are the following new features:
 
 
 \begin{code}
+{-# OPTIONS -w #-}
+-- The above warning supression flag is a temporary kludge.
+-- While working on this module you are encouraged to remove it and fix
+-- any warnings in the module. See
+--     http://hackage.haskell.org/trac/ghc/wiki/CodingStyle#Warnings
+-- for details
+
 module Pretty (
         Doc,            -- Abstract
         Mode(..), TextDetails(..),
@@ -162,7 +169,7 @@ module Pretty (
         int, integer, float, double, rational,
         parens, brackets, braces, quotes, doubleQuotes,
         semi, comma, colon, space, equals,
-        lparen, rparen, lbrack, rbrack, lbrace, rbrace,
+        lparen, rparen, lbrack, rbrack, lbrace, rbrace, cparen,
 
         (<>), (<+>), hcat, hsep, 
         ($$), ($+$), vcat, 
@@ -446,7 +453,7 @@ int      n = text (show n)
 integer  n = text (show n)
 float    n = text (show n)
 double   n = text (show n)
-rational n = text (show (fromRat n))
+rational n = text (show (fromRat n :: Double))
 --rational n = text (show (fromRationalX n)) -- _showRational 30 n)
 
 quotes p        = char '`' <> p <> char '\''
@@ -455,6 +462,8 @@ parens p        = char '(' <> p <> char ')'
 brackets p      = char '[' <> p <> char ']'
 braces p        = char '{' <> p <> char '}'
 
+cparen True  = parens
+cparen False = id
 
 hcat = foldr (<>)  empty
 hsep = foldr (<+>) empty