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Warn about arithmetic base conversation in sh (fixes #1547)

This commit is contained in:
Vidar Holen 2019-04-29 18:02:44 -07:00
parent 6ccf9d6af1
commit e2e65e1350
1 changed files with 6 additions and 0 deletions
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6
src/ShellCheck/Checks/ShellSupport.hs
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@ -172,6 +172,8 @@ prop_checkBashisms88 = verifyNot checkBashisms "#!/bin/sh\nset -- wget -o foo 'h
prop_checkBashisms89 = verifyNot checkBashisms "#!/bin/sh\nopts=$-\nset -\"$opts\""
prop_checkBashisms90 = verifyNot checkBashisms "#!/bin/sh\nset -o \"$opt\""
prop_checkBashisms91 = verify checkBashisms "#!/bin/sh\nwait -n"
prop_checkBashisms92 = verify checkBashisms "#!/bin/sh\necho $((16#FF))"
prop_checkBashisms93 = verify checkBashisms "#!/bin/sh\necho $(( 10#$(date +%m) ))"
checkBashisms = ForShell [Sh, Dash] $ \t -> do
params <- ask
kludge params t
@ -385,6 +387,10 @@ checkBashisms = ForShell [Sh, Dash] $ \t -> do
bashism t@(T_SourceCommand id src _) =
let name = fromMaybe "" $ getCommandName src
in when (name == "source") $ warnMsg id "'source' in place of '.' is"
bashism (TA_Expansion _ (T_Literal id str : _)) | str `matches` radix =
when (str `matches` radix) $ warnMsg id "arithmetic base conversion is"
where
radix = mkRegex "^[0-9]+#"
bashism _ = return ()
varChars="_0-9a-zA-Z"