I think the issue is in u.redoGroup (leo/core/LeoPyRef.leo#Code-->Core
classes-->@file leoUndo.py-->class Undoer-->u.redo helpers-->u.redoGroup)
The line:
bunch = u.beads[*u.bead*]; count = 0
Should be:
bunch = u.beads[*u.bead+1*]; count = 0
That line is in both u.undoGroup and u.redoGroup. For undoGroup u.bead is
valid, but for redo it should be operating with u.bead+1.
Brian
On Sun, Aug 18, 2019 at 5:18 PM Brian Theado <brian.the...@gmail.com> wrote:
> Hmm, it didn't work for me. Using your code and following the same steps
> as my original email, I get the same error message.
>
> After that if I start from step #4 (the ctrl-b step) again, then the undo
> and the redo work. But then if I start again at step #4, I get the original
> error message again.
>
> Could you confirm it is working for you even starting from scratch?
>
> On Sun, Aug 18, 2019 at 9:32 AM Edward K. Ream <edream...@gmail.com>
> wrote:
>
>>
>>
>> On Sun, Aug 18, 2019 at 8:28 AM Edward K. Ream <edream...@gmail.com>
>> wrote:
>>
>>>
>>> On Sun, Aug 18, 2019 at 8:24 AM Edward K. Ream <edream...@gmail.com>
>>> wrote:
>>>
>>> At least one problem is that p changes after:
>>>
>>> child = parent.insertAsNthChild(0)
>>>
>>
>> This works:
>>
>> groupType = 'insert child twice'
>> undoType = 'insert first child twice'; u = c.undoer
>> # Start group.
>> parent = p.parent()
>> u.beforeChangeGroup(parent, groupType)
>> # 1
>> undoData = u.beforeInsertNode(parent)
>> child = parent.insertAsNthChild(0)
>> u.afterInsertNode(child, undoType, undoData)
>> # 2
>> undoData = u.beforeInsertNode(parent)
>> child = parent.insertAsNthChild(0)
>> u.afterInsertNode(child, undoType, undoData)
>> # End group.
>> u.afterChangeGroup(parent, groupType)
>> c.redraw(child)
>>
>> This fails if p.parent() does not exist, but that's another matter.
>>
>> Also note the two different undo types. That's probably not necessary,
>> but it's better style.
>>
>> Edward
>>
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