I see that in t+, ksh93 emits a warning when an empty string is used as an
index of an associative array:
warning: adding empty subscript
It appears that there is no way to disable this. I found it surprising, since
I'm used to any string being usable (without complaint) as an index in an
associative array, as in previous ksh93, awk, and such. It would be nice if
there were at least a way to disable the warning - working around this would
require quite a bit of work on my library of ksh93 programs.
Also in t+, there are problems with discipline functions:
$ ksh -c 'function x.get { print "Subscript: ${.sh.subscript}"; }; : ${x[1]};
print Done'
Done
$ ksh -c 'typeset -A x; function x.get { print "Subscript: ${.sh.subscript}";
}; : ${x[1]}; print Done'
Memory fault
The above is the behavior of the ksh in the package available for Ubuntu 9.10,
"Version JM 93t+ 2009-05-01"
John
--
John DuBois [email protected] KC6QKZ/AE
I wish to God these calculations had been executed by steam. - Charles Babbage
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