Change pragma order to stop GHC 6.4 getting confused

[ghc-hetmet.git] / compiler / parser / Lexer.x

diff --git a/compiler/parser/Lexer.x b/compiler/parser/Lexer.x
index e891cae..525d50b 100644 (file)
--- a/compiler/parser/Lexer.x
+++ b/compiler/parser/Lexer.x
@@ -31,6 +31,8 @@
 -- Note that Alex itself generates code with with some unused bindings and
 -- without type signatures, so removing the flag might not be possible.
 
+{-# OPTIONS_GHC -funbox-strict-fields #-}
+
 module Lexer (
    Token(..), lexer, pragState, mkPState, PState(..),
    P(..), ParseResult(..), getSrcLoc, 
@@ -60,15 +62,11 @@ import Data.Char    ( chr, ord, isSpace )
 import Data.Ratio
 import Debug.Trace
 
-#if __GLASGOW_HASKELL__ >= 605
-import Data.Char       ( GeneralCategory(..), generalCategory, isPrint, isUpper )
-#else
-import Compat.Unicode  ( GeneralCategory(..), generalCategory, isPrint, isUpper )
-#endif
+import Unicode ( GeneralCategory(..), generalCategory, isPrint, isUpper )
 }
 
 $unispace    = \x05 -- Trick Alex into handling Unicode. See alexGetChar.
-$whitechar   = [\ \n\r\f\v\xa0 $unispace]
+$whitechar   = [\ \n\r\f\v $unispace]
 $white_no_nl = $whitechar # \n
 $tab         = \t
 
@@ -78,16 +76,16 @@ $decdigit  = $ascdigit -- for now, should really be $digit (ToDo)
 $digit     = [$ascdigit $unidigit]
 
 $special   = [\(\)\,\;\[\]\`\{\}]
-$ascsymbol = [\!\#\$\%\&\*\+\.\/\<\=\>\?\@\\\^\|\-\~ \xa1-\xbf \xd7 \xf7]
+$ascsymbol = [\!\#\$\%\&\*\+\.\/\<\=\>\?\@\\\^\|\-\~]
 $unisymbol = \x04 -- Trick Alex into handling Unicode. See alexGetChar.
 $symbol    = [$ascsymbol $unisymbol] # [$special \_\:\"\']
 
 $unilarge  = \x01 -- Trick Alex into handling Unicode. See alexGetChar.
-$asclarge  = [A-Z \xc0-\xd6 \xd8-\xde]
+$asclarge  = [A-Z]
 $large     = [$asclarge $unilarge]
 
 $unismall  = \x02 -- Trick Alex into handling Unicode. See alexGetChar.
-$ascsmall  = [a-z \xdf-\xf6 \xf8-\xff]
+$ascsmall  = [a-z]
 $small     = [$ascsmall $unismall \_]
 
 $unigraphic = \x06 -- Trick Alex into handling Unicode. See alexGetChar.
@@ -504,8 +502,8 @@ data Token
   | ITvocurly
   | ITvccurly
   | ITobrack
-  | ITopabrack                 -- [:, for parallel arrays with -fparr
-  | ITcpabrack                 -- :], for parallel arrays with -fparr
+  | ITopabrack                 -- [:, for parallel arrays with -XParr
+  | ITcpabrack                 -- :], for parallel arrays with -XParr
   | ITcbrack
   | IToparen
   | ITcparen
@@ -1218,7 +1216,7 @@ lex_char c inp = do
       c | isAny c -> do setInput inp; return c
       _other -> lit_error
 
-isAny c | c > '\xff' = isPrint c
+isAny c | c > '\x7f' = isPrint c
        | otherwise  = is_any c
 
 lex_escape :: P Char
@@ -1242,7 +1240,7 @@ lex_escape = do
 
        'x'   -> readNum is_hexdigit 16 hexDigit
        'o'   -> readNum is_octdigit  8 octDecDigit
-       x | is_digit x -> readNum2 is_digit 10 octDecDigit (octDecDigit x)
+       x | is_decdigit x -> readNum2 is_decdigit 10 octDecDigit (octDecDigit x)
 
        c1 ->  do
           i <- getInput
@@ -1486,7 +1484,7 @@ alexGetChar (AI loc ofs s)
 
        adj_c 
          | c <= '\x06' = non_graphic
-         | c <= '\xff' = c
+         | c <= '\x7f' = c
           -- Alex doesn't handle Unicode, so when Unicode
           -- character is encoutered we output these values
           -- with the actual character value hidden in the state.
@@ -1496,7 +1494,7 @@ alexGetChar (AI loc ofs s)
                  LowercaseLetter       -> lower
                  TitlecaseLetter       -> upper
                  ModifierLetter        -> other_graphic
-                 OtherLetter           -> other_graphic
+                 OtherLetter           -> lower -- see #1103
                  NonSpacingMark        -> other_graphic
                  SpacingCombiningMark  -> other_graphic
                  EnclosingMark         -> other_graphic
@@ -1550,7 +1548,7 @@ getLexState :: P Int
 getLexState = P $ \s@PState{ lex_state=ls:_ } -> POk s ls
 
 -- for reasons of efficiency, flags indicating language extensions (eg,
--- -fglasgow-exts or -fparr) are represented by a bitmap stored in an unboxed
+-- -fglasgow-exts or -XParr) are represented by a bitmap stored in an unboxed
 -- integer
 
 genericsBit, ffiBit, parrBit :: Int
@@ -1597,14 +1595,12 @@ qqEnabled        flags = testBit flags qqBit
 
 -- PState for parsing options pragmas
 --
-pragState :: StringBuffer -> SrcLoc -> PState
-pragState buf loc  = 
+pragState :: DynFlags -> StringBuffer -> SrcLoc -> PState
+pragState dynflags buf loc =
   PState {
-      buffer         = buf,
+      buffer        = buf,
       messages      = emptyMessages,
-      -- XXX defaultDynFlags is not right, but we don't have a real
-      -- dflags handy
-      dflags        = defaultDynFlags,
+      dflags        = dynflags,
       last_loc      = mkSrcSpan loc loc,
       last_offs     = 0,
       last_len      = 0,