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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-05 18:33:23 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-05 18:33:23 +0000 |
commit | 1d5cace9db9aef76f26b2d7ba54bbb76443b00b2 (patch) | |
tree | 314a15dd1aa103da13bdc83ba1d2105a290bc5ba /tests/array23.sub | |
parent | Initial commit. (diff) | |
download | bash-1d5cace9db9aef76f26b2d7ba54bbb76443b00b2.tar.xz bash-1d5cace9db9aef76f26b2d7ba54bbb76443b00b2.zip |
Adding upstream version 5.0.upstream/5.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | tests/array23.sub | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/tests/array23.sub b/tests/array23.sub new file mode 100644 index 0000000..bd64fe1 --- /dev/null +++ b/tests/array23.sub @@ -0,0 +1,28 @@ +# this captures how bash and ksh93 expand indexed array subscripts in +# various contexts. if changes are ever made, or an option added to do +# this differently, the diffs will show up here + +typeset -a array + +index='$( echo >&2 foo )' # Literal shell code should never be evaluated unless an 'eval' is involved. + +echo ${array[ $index ]} # [] expands $index, results in a literal that [] does not re-evaluate. +echo $(( $index )) # (( )) expands $index, results in a literal that (( )) does not re-evaluate. +echo $(( array[ $index ] )) # (( )) expands $index, results in a literal that [] DOES re-evaluate. + +(( array[ $index ] )) + +typeset -a a + +: $(( a[$index]=5 )) + +#shopt -s assoc_expand_once +echo $((1+a[$index])) +echo $((1+a[\$index])) +echo "1+${a[$index]}" + +# intermediate problems discovered while bash-5.0 was in testing +a=0 +echo $(( a[a[0]] )) +echo ${a[a[a[0]]]} +echo $(( a[a[a[0]]] )) |