in reply to Using perl to teach programming

Why only 32 levels of undo, especially if you're using an array as a stack? Zero, one, or infinite levels of undo is probably the best way to go. Check out the "command" design pattern for ideas. You could also easily add redo.

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Re: Re: Using perl to teach programming
by Falkkin (Chaplain) on Jan 31, 2001 at 04:36 UTC
    I intended for the levels of undo to be configurable. Upon further thought, I think I'll make the default be 256 levels.

    Thanks for the suggestion on redo... I'll definitely want to implement that.

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In Section Cool Uses for Perl