2017-05-17 15:07:26 +0100, Stephane Chazelas:
[...]
> OK, so that would confirm it's a conformance bug in ksh88. ksh93
> would probably have another one in:
>
> ~$ a=a::b: ksh93 -c 'IFS=:; printf "<%s>\n" $a""'
> <a>
> <>
> <b>
> <> ### OK
> ~$ a=a::b: ksh93 -c 'IFS=:; printf "<%s>\n" $a${a+""}'
> <a>
> <>
> <b>
>
> ### NOK
[...]And mksh in: $ a=a: b=:b mksh -c 'IFS=:; printf "<%s>\n" $a$b' <a> <> <> <b> -- Stephane
