Almost a good point, considering…
$ x=(a 'b c')
$ IFS=,
$ a="${x[*]}"; print -r -- "<$a>"
<a,b c>
$ a="${x[@]}"; print -r -- "<$a>"
<a b c>
$ a=${x[*]}; print -r -- "<$a>"
<a,b c>
$ a=${x[@]}; print -r -- "<$a>"
<a b c>
$ a="${u:-"${x[*]}"}"; print -r -- "<$a>"
<a,b c>
$ a="${u:-"${x[@]}"}"; print -r -- "<$a>"
<a b c>
Oh the other hand, according to POSIX, using “$@” (contrary to “$*”) in
double-quotes in scalar context is unspecified unless part of “word” in
“${foo:-word}”… I guess mksh and zsh just equal it to $* there, whereas
AT&T ksh93 and GNU bash don’t.
As for the mailing list… writing to postmaster@, but if your mail
provider is either on the blacklist (Yahoo, OVH, …) or too stupid for
SMTP (Hotmail, Googlemail, …) I guess you’re somewhat out of luck. (I
didn’t see any connection to postmaster@ in my logs (from Dec 20, 16:00,
onwards, I don’t retain older logs), nor in my greylisting, if that’s a
consolation.) You can try another eMail service or read at https://www
.mail-archive.com/[email protected]/ or so…
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https://bugs.launchpad.net/bugs/1857195
Title:
here string behaviour different in mksh and ksh93
Status in mksh:
New
Bug description:
consider
IFS=$'\n'
x=(a "b c")
cat <<< ${x[*]}
cat <<< "${x[*]}"
cat <<< ${x[@]}
cat <<< "${x[@]}"
executing this in mksh (or zsh, incidentally) yields the output
a
b c
a
b c
a
b c
a
b c
(i.e. identical output, always inserting first IFS char between
elements, for all variants of accessing all elements of the array)
while ksh93 (or bash, for that matter) yields
a
b c
a
b c
a b c
a b c
(i.e. `*' behaves different from `@' but double quoting is
ineffectual).
I am not sure whether this is a bug (either in ksh93 or mksh) but wanted to
report this inconsistency and to ask for clarification. what I _would_ have
expected to start with is, that
the above "here string" commands would yield the same output as
print ${x[*]}
print "${x[*]}"
print ${x[@]}
print "${x[@]}"
which is neither true for ksh93 nor for mksh. is this all good and
well and I am only overlooking something obvious?
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