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| author | Denys Vlasenko | 2017-07-26 00:30:02 +0200 |
|---|---|---|
| committer | Denys Vlasenko | 2017-07-26 00:30:02 +0200 |
| commit | b0648b0e7874e8551df64708532346a049ab7f2c (patch) | |
| tree | c70d819fe4a2ccae0fe4573d3a2f8fc038af9f04 /shell/ash_test/ash-vars | |
| parent | 2093ad296f8a4528ad0e106b52074871a2bf070e (diff) | |
| download | busybox-b0648b0e7874e8551df64708532346a049ab7f2c.zip busybox-b0648b0e7874e8551df64708532346a049ab7f2c.tar.gz | |
shell: remove ${#+} tests, it is not a valid construct
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
Diffstat (limited to 'shell/ash_test/ash-vars')
| -rw-r--r-- | shell/ash_test/ash-vars/param_expand_alt.right | 2 | ||||
| -rwxr-xr-x | shell/ash_test/ash-vars/param_expand_alt.tests | 9 |
2 files changed, 8 insertions, 3 deletions
diff --git a/shell/ash_test/ash-vars/param_expand_alt.right b/shell/ash_test/ash-vars/param_expand_alt.right index c733c14..1303f80 100644 --- a/shell/ash_test/ash-vars/param_expand_alt.right +++ b/shell/ash_test/ash-vars/param_expand_alt.right @@ -1,6 +1,6 @@ SHELL: line 1: syntax error: bad substitution SHELL: line 1: syntax error: bad substitution -_0_ __ +__ _z_ _z_ _ _ _ _ _ _aaaa _ _ _word _word diff --git a/shell/ash_test/ash-vars/param_expand_alt.tests b/shell/ash_test/ash-vars/param_expand_alt.tests index d804524..23e9a26 100755 --- a/shell/ash_test/ash-vars/param_expand_alt.tests +++ b/shell/ash_test/ash-vars/param_expand_alt.tests @@ -6,8 +6,13 @@ # now some funky ones. # ${V+word} "if V unset, then substitute nothing, else substitute word" # ${V:+word} "if V unset or '', then substitute nothing, else substitute word" -# bash doesn't accept ${#+}. ash prints 0 (not $#): "len of $+" -echo _${#+}_ _${#:+}_ +# +# ${#:+} is a :+ op on $#, but ${#+} (and any other ${#c}) is "length of $c", +# not + op on $#. +# bash and dash do not accept ${#+}. it's possible for some shell to skip +# the check that c is valid and interpret ${#+} as "len of $+". Not testing it. +# echo _${#+}_ +echo _${#:+}_ # Forms with non-empty word work as expected in both ash and bash. echo _${#+z}_ _${#:+z}_ |