Thanks for the detailed demo.. it's very helpful for me to getting familiar with Leo scripting.
Edward K. Ream <[email protected]> 于2020年2月26日周三 上午3:12写道： > On Tue, Feb 25, 2020 at 12:42 PM Xu Wang <[email protected]> wrote: > >> Dear Leo Developer, >> >> If I know the GNX of one node, how shall I clone it to the position under >> current node(as a child of current position)? >> > > Good question. > > gnx's belong to vnodes, not positions. Your question is equivalent to > asking, given a vnodes, how do I create the desired clone. > > Most of the time it will be easier to use positions rather than vnodes. > For example, here is tested code that, given a *position, *moves a clone > of that position to the last node of c.p: > > # Get the position of a node whose headline is 'Target Node' > child_p = g.findNodeAnywhere(c, 'Target Node') > assert child_p > # Clone the node. > clone = child_p.clone() > # Move the node > p = c.p > n = p.numberOfChildren() > clone.moveToNthChildOf(p, n) > # Make all children visible and redraw. > p.expand() > c.redraw() > > If all you have is a gnx, then you can search for any position whose vnode > has that gnx. Here is tested code. > > child_p = None > for p in c.all_positions(): > if p.gnx == 'ekr.20200225134818.1': # The gnx of my target node. > child_p = p > break > assert child_p > clone = child_p.clone() > > And then you can proceed as before: > > p = c.p # Don't use the p in the search loop! > n = p.numberOfChildren() > clone.moveToNthChildOf(p, n) > p.expand() > c.redraw() > > HTH. > > Edward > > P.S. If performance is a big consideration, you might be able to use one > of Leo's dictionaries that associates vnodes with gnx's. But I'll leave > that complication for (much) later :-) > > EKR > > -- > You received this message because you are subscribed to the Google Groups > "leo-editor" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/leo-editor/5a1e06e9-7fa1-4102-b810-dfe0aa01a1d4%40googlegroups.com > <https://groups.google.com/d/msgid/leo-editor/5a1e06e9-7fa1-4102-b810-dfe0aa01a1d4%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- You received this message because you are subscribed to the Google Groups "leo-editor" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/leo-editor/CAEpKVv83t0pdYR7qn%2BwM%2BYmg_drfoGTYJ%3DVXQwUe4M9ic_%3Dd7g%40mail.gmail.com.
