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| author | Herbert Xu <herbert@gondor.apana.org.au> | 2019-05-27 13:39:37 +0800 |
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| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2020-01-20 17:52:07 +0800 |
| commit | 7710a926b321879b84bf349b865b1dd4c52083f8 (patch) | |
| tree | 224c3b41059e522904758d705110de777e19c611 /src/mail.c | |
| parent | expand: Fix trailing newlines processing in backquote expanding (diff) | |
| download | dash-7710a926b321879b84bf349b865b1dd4c52083f8.tar.gz dash-7710a926b321879b84bf349b865b1dd4c52083f8.zip | |
parser: Only accept single-digit parameter expansion outside of braces
On Thu, Apr 25, 2019 at 01:39:52AM +0000, Michael Orlitzky wrote: > The POSIX spec says, > > The parameter name or symbol can be enclosed in braces, which are > optional except for positional parameters with more than one digit or > when parameter is a name and is followed by a character that could be > interpreted as part of the name. > > However, dash seems to diverge from that behavior when we get to $10: > > $ cat test.sh > echo $10 > > $ dash ./test.sh one two three four five six seven eight nine ten > ten > > $ bash ./test.sh one two three four five six seven eight nine ten > one0 This patch should fix the problem. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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