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| author | Denys Vlasenko <vda.linux@googlemail.com> | 2017-07-29 19:57:28 +0200 |
|---|---|---|
| committer | Denys Vlasenko <vda.linux@googlemail.com> | 2017-07-29 19:57:28 +0200 |
| commit | a732898fdd9748b966da228ee8bbbc148c3c10c9 (patch) | |
| tree | 6a77b07cc830a0bec815b27927a4af85846d1666 /shell/ash_test/ash-heredoc | |
| parent | 170f93ef1bc49a9e4c68f85f5245416767c1916f (diff) | |
| download | busybox-a732898fdd9748b966da228ee8bbbc148c3c10c9.tar.gz | |
ash: [PARSER] Removed noexpand/length check on eofmark
Upstream comment:
Date: Sun, 11 Nov 2007 14:21:23 +0800
[PARSER] Removed noexpand/length check on eofmark
On Tue, Oct 30, 2007 at 04:23:35AM +0000, Oleg Verych wrote:
>
> } 8<<""
> ======================
Actually this (the empty delim) only works with dash by accident.
I've tried bash and pdksh and they both terminate on the first
empty line which is what you would expect rather than EOF. The
real Korn shell does something completely different.
I've fixed this in dash to conform to bash/pdksh.
> In [0] it's stated, that delimiter isn't evaluated (expanded), only
> quoiting must be checked. That if() seems to be completely bogus.
OK I agree. The reason it was there is because the parser would
have already replaced the dollar sign by an internal representation.
I've fixed it properly with this patch.
Test case:
cat <<- $a
OK
$a
cat <<- ""
OK
echo OK
Old result:
dash: Syntax error: Illegal eof marker for << redirection
OK
echo OK
New result:
OK
OK
OK
function old new delta
parsefname 227 152 -75
readtoken1 2819 2651 -168
------------------------------------------------------------------------------
(add/remove: 0/0 grow/shrink: 0/2 up/down: 0/-243) Total: -243 bytes
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'shell/ash_test/ash-heredoc')
| -rw-r--r-- | shell/ash_test/ash-heredoc/heredoc_empty.right | 3 | ||||
| -rwxr-xr-x | shell/ash_test/ash-heredoc/heredoc_empty.tests | 8 |
2 files changed, 11 insertions, 0 deletions
diff --git a/shell/ash_test/ash-heredoc/heredoc_empty.right b/shell/ash_test/ash-heredoc/heredoc_empty.right new file mode 100644 index 000000000..0eabe3671 --- /dev/null +++ b/shell/ash_test/ash-heredoc/heredoc_empty.right @@ -0,0 +1,3 @@ +OK +OK +OK diff --git a/shell/ash_test/ash-heredoc/heredoc_empty.tests b/shell/ash_test/ash-heredoc/heredoc_empty.tests new file mode 100755 index 000000000..3629bc6d1 --- /dev/null +++ b/shell/ash_test/ash-heredoc/heredoc_empty.tests @@ -0,0 +1,8 @@ +unset a +cat <<- $a + OK +$a +cat <<- "" + OK + +echo OK |