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authorbringert <unknown>2004-12-08 13:21:40 +0000
committerbringert <unknown>2004-12-08 13:21:40 +0000
commitecd059454756f32c6a4b2375101abb140163901d (patch)
treec6df64647946936747cc6f92549919df66ebcc3c /src/GF/Source/LexGF.x
parentb5ab17ca73ee8f8c8ecc544759bf8ef10d1b6a73 (diff)
Generated GF and GFC lexers with BNFC with string sharing support.
Diffstat (limited to 'src/GF/Source/LexGF.x')
-rw-r--r--src/GF/Source/LexGF.x31
1 files changed, 17 insertions, 14 deletions
diff --git a/src/GF/Source/LexGF.x b/src/GF/Source/LexGF.x
index e249f1705..72431c578 100644
--- a/src/GF/Source/LexGF.x
+++ b/src/GF/Source/LexGF.x
@@ -1,10 +1,10 @@
-- -*- haskell -*-
-- This Alex file was machine-generated by the BNF converter
--- Lines with -- H have been hacked for greater performance
{
module LexGF where
-import SharedString -- H
+
import ErrM
+import SharedString
}
@@ -23,27 +23,30 @@ $u = [\0-\255] -- universal: any character
"{-" ([$u # \-] | \- [$u # \}])* ("-")+ "}" ;
$white+ ;
-@rsyms { tok (\p s -> PT p (TS $ shareString s)) } -- H
-\' ($u # \')* \' { tok (\p s -> PT p (eitherResIdent (T_LString . shareString) s)) } -- H
+@rsyms { tok (\p s -> PT p (TS $ share s)) }
+\' ($u # \')* \' { tok (\p s -> PT p (eitherResIdent (T_LString . share) s)) }
-$l $i* { tok (\p s -> PT p (eitherResIdent (TV . shareString) s)) } -- H
-\" ([$u # [\" \\ \n]] | (\\ (\" | \\ | \' | n | t)))* \"{ tok (\p s -> PT p (TL $ shareString $ unescapeInitTail s)) } -- H
+$l $i* { tok (\p s -> PT p (eitherResIdent (TV . share) s)) }
+\" ([$u # [\" \\ \n]] | (\\ (\" | \\ | \' | n | t)))* \"{ tok (\p s -> PT p (TL $ share $ unescapeInitTail s)) }
-$d+ { tok (\p s -> PT p (TI s)) }
+$d+ { tok (\p s -> PT p (TI $ share s)) }
{
tok f p s = f p s
+share :: String -> String
+share = shareString
+
data Tok =
- TS !String -- reserved words -- H
- | TL !String -- string literals -- H
- | TI String -- integer literals
- | TV !String -- identifiers -- H
- | TD String -- double precision float literals
- | TC String -- character literals
- | T_LString !String -- H
+ TS !String -- reserved words
+ | TL !String -- string literals
+ | TI !String -- integer literals
+ | TV !String -- identifiers
+ | TD !String -- double precision float literals
+ | TC !String -- character literals
+ | T_LString !String
deriving (Eq,Show,Ord)