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Don't consider ${!os*} reference of 'os'

This commit is contained in:
Vidar Holen 2015-08-22 13:55:17 -07:00
parent ae4aea4530
commit 10276c878d
1 changed files with 12 additions and 1 deletions
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13
ShellCheck/Analytics.hs
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@ -2248,8 +2248,10 @@ prop_getBracedReference7 = getBracedReference "!foo#?" == "foo"
prop_getBracedReference8 = getBracedReference "foo-bar" == "foo"
prop_getBracedReference9 = getBracedReference "foo:-bar" == "foo"
prop_getBracedReference10= getBracedReference "foo: -1" == "foo"
prop_getBracedReference11= getBracedReference "!os*" == ""
prop_getBracedReference12= getBracedReference "!os?bar**" == ""
getBracedReference s = fromMaybe s $
takeName noPrefix `mplus` getSpecial noPrefix `mplus` getSpecial s
nameExpansion s `mplus` takeName noPrefix `mplus` getSpecial noPrefix `mplus` getSpecial s
where
noPrefix = dropPrefix s
dropPrefix (c:rest) = if c `elem` "!#" then rest else c:rest
@ -2262,6 +2264,14 @@ getBracedReference s = fromMaybe s $
if c `elem` "*@#?-$!" then return [c] else fail "not special"
getSpecial _ = fail "empty"
nameExpansion ('!':rest) = do -- e.g. ${!foo*bar*}
let suffix = dropWhile isVariableChar rest
guard $ suffix /= rest -- e.g. ${!@}
first <- suffix !!! 0
guard $ first `elem` "*?"
return ""
nameExpansion _ = Nothing
getIndexReferences s = fromMaybe [] $ do
match <- matchRegex re s
index <- match !!! 0
@ -2656,6 +2666,7 @@ prop_checkUnassignedReferences18= verifyNotTree checkUnassignedReferences "FOOBA
prop_checkUnassignedReferences19= verifyNotTree checkUnassignedReferences "readonly foo=bar; echo $foo"
prop_checkUnassignedReferences20= verifyNotTree checkUnassignedReferences "printf -v foo bar; echo $foo"
prop_checkUnassignedReferences21= verifyTree checkUnassignedReferences "echo ${#foo}"
prop_checkUnassignedReferences22= verifyNotTree checkUnassignedReferences "echo ${!os*}"
checkUnassignedReferences params t = warnings
where
(readMap, writeMap) = execState (mapM tally $ variableFlow params) (Map.empty, Map.empty)