tree ba0dc60e76629ab37a243b7b57efcb0ed297a6e3
parent fd45f364a8387f7193f2b9be5d316ffb4361a5da
author Herbert Xu <herbert@gondor.apana.org.au> 1300182113 +0800
committer Herbert Xu <herbert@gondor.apana.org.au> 1300182113 +0800

[PARSER] Fix clobbering of checkkwd

On Sun, Nov 07, 2010 at 02:21:21AM +0000, Jonathan Nieder wrote:
>
> Just ran into some strange behavior:
>
> $ cat test.sh
> #!/bin/sh
> echo hello >greeting
> cat <<EOF &&
> $(cat greeting)
> EOF
> {
> 	echo $?
> 	cat greeting
> } >/dev/null
>
>
> $ sh test.sh
> hello
> test.sh: 7: {: not found
> 127
> hello
> test.sh: 10: Syntax error: "}" unexpected
>
> bash, mksh, pdksh, and ksh93 all print hello as expected.  The problem
> is reproducible with all versions of dash in the git repo.

This is caused by the clobbering of checkkwd due to readtoken
recursion while parsing a here document.

This patch fixes it by saving the original value of checkkwd.

Reported-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>