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don't fail when matching an empty pattern, as in "not:"

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Simon Michael 2009-05-16 21:19:38 +00:00
parent 8eb31bc5e3
commit ef39cced4a
1 changed files with 1 additions and 1 deletions
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Ledger/AccountName.hs
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@ -145,4 +145,4 @@ isnegativepat pat = negateprefix `isPrefixOf` pat
abspat pat = if isnegativepat pat then drop (length negateprefix) pat else pat
positivepats = filter (not . isnegativepat)
negativepats = filter isnegativepat
matchregex pat str = containsRegex (mkRegexWithOpts pat True False) str
matchregex pat str = null pat || containsRegex (mkRegexWithOpts pat True False) str