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make fromparse utility show the parse error

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Simon Michael 2008-12-08 17:15:02 +00:00
parent 59c9dde458
commit da70e00e3b
1 changed files with 1 additions and 1 deletions
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2
Ledger/Utils.hs
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@ -208,7 +208,7 @@ parsewith :: Parser a -> String -> Either ParseError a
parsewith p ts = parse p "" ts
fromparse :: Either ParseError a -> a
fromparse = either (\_ -> error "parse error") id
fromparse = either (\e -> error $ "ledger parse error at "++(show e)) id
nonspace :: GenParser Char st Char
nonspace = satisfy (not . isSpace)