brian at milby7.com
Fri May 21 10:25:29 EDT 2021
For text, the method will depend on the size of the text. In general, implement an undo stack and a redo stack. For single line fields it could simply be a list for each. After each change, add entry to undo list and clear redo list. When doing undo, move entries to redo list allowing forward/backward movement between changes.
For longer text, an array based stack could be used. Either store the full text or use the diff library - method will depend on size of text.
Sent from my iPhone
> On May 21, 2021, at 9:28 AM, Klaus major-k via use-livecode <use-livecode at lists.runrev.com> wrote:
> Hi Mike,
>> Am 21.05.2021 um 15:23 schrieb Mike Kerner via use-livecode <use-livecode at lists.runrev.com>:
>> I _think_ that there might also be an undo manager built into levure, if
>> you are interested.
> oh, OK, sounds great, will take a look!
> Thank you!
> Klaus Major
> klaus at major-k.de
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