Re-index before calling “his i”

Hi,

Is there any method to re-index history? I wanna do this to make history
index always start from 1 to the MAX history value.

Calling "his i" or "his @" to show input history.

For example, if set history=20, after reaching the max history items, input
new item will edge out the oldest history item, so the history index will be
:

# input history
2...
3...
...
21...

Calling histdel() will also make the index uncontinuous.

Is there anyway to re-index the history before calling "his i" ?
BTW, how to index from newest to oldest history?

Thanks,

Hangtian



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