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-rw-r--r--src/GF/Devel/Grammar/PatternMatch.hs4
1 files changed, 4 insertions, 0 deletions
diff --git a/src/GF/Devel/Grammar/PatternMatch.hs b/src/GF/Devel/Grammar/PatternMatch.hs
index 076aaa25a..ec64d7802 100644
--- a/src/GF/Devel/Grammar/PatternMatch.hs
+++ b/src/GF/Devel/Grammar/PatternMatch.hs
@@ -114,6 +114,10 @@ tryMatch (p,t) = do
[1..n]) t' | n <- [0 .. length s]
] >>
return []
+
+ (PChar, ([],K [_], [])) -> return []
+ (PChars cs, ([],K [c], [])) | elem c cs -> return []
+
_ -> prtBad "no match in case expr for" t
eqStrIdent = (==) ----