[QiaoJiao]

Is it possible to select random line and set cursor here in the selection?

I can do it for the whole file:

var lines_total = document.GetLines();
var line_random = Math.floor((Math.random()*lines_total)+1);
document.selection.SetActivePoint(eePosLogical, 1, line_random);

But I can’t wrap my mind how to do this for selection, if it possible at all.

[Yutaka Emura]

Do you want to select only one random line from the whole document? Then you can append this line:

document.selection.EndOfLine(true,eeLineLogical);

[QiaoJiao]

I want to set cursor to a random line from selected lines. So if I select 3 lines, run script, it would set cursor to one of them randomly.

My code above works for whole file, I wonder is it possible to do this for selected lines.

Main problem is getting line number for selected lines, after that it is the same as in the previouse code.

[LTT]

Something like this?

yTop = document.selection.GetTopPointY(eePosLogical);
yBottom = document.selection.GetBottomPointY(eePosLogical);
var line_random = Math.floor((Math.random()*(yBottom – yTop + 1)) + yTop);
document.selection.SetActivePoint(eePosLogical, 1, line_random);

[QiaoJiao]

Yes, execty this. GetTopPointY is the magic I was looking for. Thanks a lot.

“–” in code is messed up with formating, should be “-“.

[QiaoJiao]

My final super script: jump to random line in the file, if more than 1 line selected, jump to a random line from them.
The quirky thing here is to remove last “\n”, otherwise next line will also be included which we don’t want.

var text = document.selection.Text;
var last_char = text.slice(-1);
if ( last_char === "\n" )
	text = text.slice(0, -1);

if ( text.indexOf("\n") === -1 ) {
	var lines_total = document.GetLines();
	var line_random = Math.floor((Math.random()*lines_total)+1);
}
else {
	var yTop = document.selection.GetTopPointY(eePosLogical);
	var yBottom = document.selection.GetBottomPointY(eePosLogical);
	if ( last_char === "\n" )
		yBottom = yBottom - 1;
	var line_random = Math.floor((Math.random()*(yBottom - yTop + 1)) + yTop);
}
document.selection.SetActivePoint(eePosLogical, 1, line_random);

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