Re: dash bug: double-quoted "\" breaks glob protection for next char

[Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>]

On Mon, Apr 02, 2018 at 03:48:46PM +0200, Denys Vlasenko wrote:
>
> Another probably buggy case:
> 
> cat <<EOF
> -\t-\\-\"-\'-\`-\--\z-\*-\?-
> `echo  '-\t-\\-\"-\x-\`-\--\z-\*-\?-'`
> $(echo '-\t-\\-\"-\x-\`-\--\z-\*-\?-')
> EOF
> 
> 
> # bash heredoc_backslash.test
> -\t-\-\"-\'-`-\--\z-\*-\?-
> -\t-\-\"-\x-`-\--\z-\*-\?-
> -\t-\\-\"-\x-\`-\--\z-\*-\?-
> 
> # dash heredoc_backslash.test
> -\t-\-\"-\'-`-\--\z-\*-\?-
> -    -\-"-\x-`-\--\z-\*-\?-
> -    -\-\"-\x-\`-\--\z-\*-\?-
> 
> (Second and third line have \t expanded to tab. Mail-mangled to spaces, likely)
> 
> Apart from \t, note that in second heredoc line there is a difference in how
> `echo  '\"'` was handled: bash prints \", dash prints ".

FWIW ksh93 does the same thing.

Cheers,
-- 
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
--
To unsubscribe from this list: send the line "unsubscribe dash" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html