What is the korn typset option -t (tag) used for?

Question

I was reading about the Korn typeset command and discovered the -t option adds a tag, but I can't figure out what it's used for. Does anyone have an example?

-t Tags the name. Tags are user definable and have no special meaning to the shell.

Answer 1

I also wondered this, and discovered it is useless, you can run

typeset +t

to return all the 'tagged' variables, if you wanted to..

http://www.shelldorado.com/search/search-swish.cgi

here they use it to define a set of allowed variables.