Re: Win-style undo?

[Robert Holmgren holmgren@xxxxxxxx]

** Reply to note from xywrite@xxxxxxxx Fri, 11 Jun 1999 21:27:41 -0400
 
> And don't shoot me, but is there such a thing as
> a Win-style undo command available for Xy4 Dos?

Yes, and it's a genuine, unlimited undo, which however works a little differently
than, say, the MSWord undo. With most orthodox "undo"s, you step back through
previous incarnations of your work one-by-one, in LIFO manner -- most recent
first, then the next-previous one, then the one before that, etc. With this
undo, you simply CAll directly the version you want -- all versions are
preserved on disk, intact. It's called SAVEBAK, by Carl Distefano, and it's part
of XYWWWEB.U2. Command "HELP SAVEBAK" to learn more. To code it on a
SAve key, which would SAve the current version and then proceed to make a backup of
it (for later UNDOing), you'd say something like this:

nn=NOBXs,a,Q2BXw,a,i,t,Q2JM2,.,s,a,v,e,b,a,k,Q2

Combine this with the RuboutDelete Manager, RDMgr, which preserves every block
deletion you've made since time immemorial up to an aggregate limit you set
(default=20Mb of deletions), and you have two complementary methods of retrieving
things you threw away, both the big picture and the little scraps of text. See
further "HELP RDMGR". The nice thing is that the resulting archive files
(or UNDOs and deletions) are readily SEarchable, with XyWWWeb's enhanced SEarch
command, which is far more flexible than the factory SEarch, because you can SEarch
multiple files, and then open them right at the spot where you locate sought text
(instead of at TopOfFile, as in the factory version). Not only that, but if you
decide to resume or continue SEarching, you don't re-issue the command ab initio,
and plow through the same 50 files that you weren't interested in the first time
around; instead, you **resume searching where you left off**, with the next file
that you haven't yet viewed! And it is as fast, or faster, than the factory
version. Not too shabby.


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Robert Holmgren
holmgren@xxxxxxxx
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