busybox/shell/ash_test/ash-misc
Ron Yorston 0e056f7e9e ash: remove parsebackquote flag
Commit 503a0b8 from git://git.kernel.org/pub/scm/utils/dash/dash.git
by Herbert Xu says:

  >The parsebackquote flag is only used in a test where it always has the
  >value zero.  So we can remove it altogether.

The first statement is incorrect:  parsebackquote is non-zero when
backquotes (as opposed to $(...)) are used for command substitution.
It is possible for the test to be executed with parsebackquote != 0 in
that case.

The test is question checks whether quotes have been closed, raising
the error "unterminated quoted string" if they haven't.  There seems
to be no good reason to allow unclosed quotes within backquotes.  Bash,
hush and dash (after commit 503a0b8) all treat the following as an error:

   XX=`"pwd`

whereas BusyBox ash doesn't.  It just ignores the unclosed quote and
executes pwd.

So, parsebackquote should be removed but not for the reason stated.

function                                             old     new   delta
parsebackquote                                         1       -      -1
readtoken1                                          3222    3182     -40
------------------------------------------------------------------------------
(add/remove: 0/1 grow/shrink: 0/1 up/down: 0/-41)             Total: -41 bytes

Signed-off-by: Ron Yorston <rmy@frippery.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2015-07-13 03:50:27 +02:00
..
echo_write_error.right echo: do not retry on write errors 2011-02-07 02:03:51 +01:00
echo_write_error.tests echo: do not retry on write errors 2011-02-07 02:03:51 +01:00
last_amp.right
last_amp.tests
local1.right ash: make "locak VAR" unset VAR (bash does that) 2014-03-16 18:41:11 +01:00
local1.tests ash: make "locak VAR" unset VAR (bash does that) 2014-03-16 18:41:11 +01:00
nulltick1.right fix bug 1087. Fix by Leonid (lly.dev AT gmail.com) 2010-02-21 01:26:42 +01:00
nulltick1.tests fix bug 1087. Fix by Leonid (lly.dev AT gmail.com) 2010-02-21 01:26:42 +01:00
shift1.right
shift1.tests
source1.right
source1.tests
source2.right ash: add two testcases for (not yet fixed) ash bugs 2010-05-17 02:56:18 +02:00
source2.tests ash: fix ". empty_file" exitcode. +5 bytes 2010-05-17 17:10:46 +02:00
tickquote1.right ash: remove parsebackquote flag 2015-07-13 03:50:27 +02:00
tickquote1.tests ash: remove parsebackquote flag 2015-07-13 03:50:27 +02:00