Re: [PD] Store some lists with undo function?

Hi John,

For sure, I thought you might be doing that but hope it helps in some way.

You could try appending an additional index to each entry i.e. Index/Time/Note/Vel. Then keep a track of the highest index number and use [route] to siphon of the most recent message when undo is applied.

Cheers, Joe

On 22 May 2013 13:07, JF saintidle@yahoo.com wrote:

Hi Joe,

That's brilliant thanks for going to the trouble!

But not exactly what I'm after as it doesn't account for entries with more than one atom. I'm looking to store something like...

Time/Note/Vel 103 c3 127, 267 d3 120, 300 c3 0, 503 d3 0, ...

I see that I could probably use your idea but chop off the last 3 entries rather than the last 1 entry, but I was hoping to create a generic abstraction that could understand the comma delimiter. Something that I could have mixed length lists in.

Although it has given me ideas so thanks for that!

Cheers, John.

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*From:* Joe White white.joe4@gmail.com *To:* JF saintidle@yahoo.com *Cc:* pd list pd-list@iem.at *Sent:* Wednesday, 22 May 2013, 12:22 *Subject:* Re: [PD] Store some lists with undo function?

Hi John,

If you don't need comma separated lists (although I have a feeling you might for time-stamped message) then you can do it this way with [u_collect] instead.

Cheers, Joe

On 21 May 2013 20:38, JF saintidle@yahoo.com wrote:

I'm experimenting with a message sequencer that will play back time tagged lists.

So far I've looked at [qlist] [textfile] and rjlib's [u_cocollect].

Are there any relatively simple approaches to 'undo'-ing the last list written to any of these

objects?

I'm a little stumped on it to be honest other than complicated writing to buffers and

attempting to prune the last list somehow.

Thanks, John.

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