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Fixed warning about \n in echo -n -e '\n'

This commit is contained in:
Vidar Holen 2014-04-05 12:49:24 -07:00
parent 8bd4365cdb
commit c3cc5f649f
1 changed files with 4 additions and 1 deletions
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5
ShellCheck/Analytics.hs
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@ -1577,11 +1577,14 @@ prop_checkUnusedEchoEscapes1 = verify checkUnusedEchoEscapes "echo 'foo\\nbar\\n
prop_checkUnusedEchoEscapes2 = verifyNot checkUnusedEchoEscapes "echo -e 'foi\\nbar'"
prop_checkUnusedEchoEscapes3 = verify checkUnusedEchoEscapes "echo \"n:\\t42\""
prop_checkUnusedEchoEscapes4 = verifyNot checkUnusedEchoEscapes "echo lol"
prop_checkUnusedEchoEscapes5 = verifyNot checkUnusedEchoEscapes "echo -n -e '\n'"
checkUnusedEchoEscapes _ = checkCommand "echo" (const f)
where
isDashE = mkRegex "^-.*e"
hasEscapes = mkRegex "\\\\[rnt]"
f (arg:_) | (concat $ deadSimple arg) `matches` isDashE = return ()
f args | (concat $ concatMap deadSimple allButLast) `matches` isDashE =
return ()
where allButLast = reverse . drop 1 . reverse $ args
f args = mapM_ checkEscapes args
checkEscapes (T_NormalWord _ args) =