Re: unset var [was Re: Problem and solution: Patch for new "stats" command]

[Hans-Bernhard B. <HBB...@t-...>]

Ethan Merritt wrote:

> Hmm.  But it isn't  "set var foo",  it's "var = foo".
> So "unset" is misleading.

But we _do_ "show var foo", so "{set|unset} var foo" would match the 
usual relation between show/set/unset rather more nicely than a new 
command of its own.

> But there is a possible "gotcha".  If you undefine a function that is
> called by another previously-defined function, bad things could happen.

None of those would be worse than the bad things already happening by

*) never defining a variable used by some function in the first place
*) never defining a function used by anther function in the first place
*) undefining a variable that was referenced by some function
*) never defining a variable used to set the value of another variable
*) never defining a function called to set the value of a variable