On 1/30/13 1:03 AM, Dan Douglas wrote:
> Hi everyone, and welcome to another edition of IBOTD (IFS-bug-of-the-day),
> featuring everyone's favorite Bourne shell kludge: word-splitting!
>
> On today's episode - inconsistencies within assignments that depend upon
> quoting. Though I can't take credit for discovering this -- it was pointed
> out
> to me by some guys on IRC after demonstrating some other stuff.
>
> And a quick test:
>
> function expassign {
> typeset -a a
> a=("$@")
> typeset var asn
>
> while IFS= read -r asn; do
> IFS=: command eval "$asn"
> printf '%-14s... %s\n' "$asn" "$var"
> done <<\EOF
> var=${a[*]}
> var="${a[*]}"
> var=$*
> var="$*"
> var=${a[@]}
> var="${a[@]}"
> var=$@
> var="$@"
> EOF
> }
>
> ${ZSH_VERSION+:} false && emulate ksh
> expassign one:::two three:::four
Thanks for the test case. I had to fix the expansions of ${a[@]} and
${a[*]}, and those fixes will be in the next release.
Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU c...@case.edu http://cnswww.cns.cwru.edu/~chet/
