Keep history, diff, etc.

[mightyiam]

How would you keep a history of changes in a minidom?

• Make minidom manipulations (appendChild, etc.)
• Register current minidom as a point in history (a history array of diffs?)
• Revert to the last point in history (thus able to revert back to any point in history) (apply last diff?)

[mightyiam]

Do you think that minidoms can be successfully cloned using https://github.com/imbcmdth/UltraDeepClone , for example?

[mightyiam]

It seems that minidoms can be successfully cloned using ultradeepclone.

I'm looking for a diff/patch solution that can handle the circular references in minidom objects.

All of these go into infinite recursion:

• https://github.com/Gozala/diffpatcher
• Diff/patching minidoms eugeneware/changeset#3 (comment)
• Patch behavior when dealing with references benjamine/jsondiffpatch#34 (comment)

flitbit/diff#24 doesn't go into infinite recursion but I didn't quite get my head around it, yet.

[flitbit]

Saw the comment "didn't quite get my head around it", so: see flitbit/diff lines 102-104. A stack is passed along during descent and consulted at every point in a path in order to detect/avoid circular reference problems such as an infinite loop.

[mightyiam]

Thank you @flitbit .

[kriskowal]

The stack approach is sloppy. Should use a Map or some such. See: https://github.com/kriskowal/pop-clone

If this discussion does not require any action, please close. cc @Stuk.