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Merge pull request #1918 from josephcsible/getsuspiciousregexwildcard

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Clean up and optimize getSuspiciousRegexWildcard
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Vidar Holen 2020-04-12 15:32:00 -07:00 • committed by GitHub
commit 75863a887e
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1 changed files with 5 additions and 11 deletions
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12
src/ShellCheck/Checks/Commands.hs
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@ -283,15 +283,9 @@ checkGrepRe = CommandCheck (Basename "grep") check where
candidates =
sampleWords ++ map (\(x:r) -> toUpper x : r) sampleWords
getSuspiciousRegexWildcard str =
if not $ str `matches` contra
then do
match <- matchRegex suspicious str
str <- match !!! 0
str !!! 0
else
fail "looks good"
where
getSuspiciousRegexWildcard str = case matchRegex suspicious str of
Just [[c]] | not (str `matches` contra) -> Just c
_ -> fail "looks good"
suspicious = mkRegex "([A-Za-z1-9])\\*"
contra = mkRegex "[^a-zA-Z1-9]\\*|[][^$+\\\\]"