Improved error type with position annotation

[cc1516.git] / src / parse.icl

diff --git a/src/parse.icl b/src/parse.icl
index bc93239..5fc8f8c 100644 (file)
--- a/src/parse.icl
+++ b/src/parse.icl
@@ -173,7 +173,7 @@ trans1 :: TokenValue a -> Parser Token a
 trans1 t r = trans2 t $ const r
 
 satTok :: TokenValue -> Parser Token Token
-satTok t = satisfy ((===) t)
+satTok t = top >>= \tok=:(pos, tv) -> if (t === tok) (return tok) (fail <?> ("Token", pos))
 
 parseSepList :: TokenValue (Parser Token a) -> Parser Token [a]
 parseSepList sep p =