🚀 go-pugleaf

Something similar in Javascript (therefore cross-platform):

var docRef=activeDocument;
var minLength=prompt("Deselect Paths shorter than:",5);
for(i=docRef.selection.length-1;i>=0;i--){
	var currItem=docRef.selection[i];
	//alert(currPath.length>minLength);
	if(currItem.typename!="PathItem"||currItem.length>minLength){

			currItem.selected=false;
		redraw();
	}
}

The script assumes you already have a selection. It then DEselects whatever selected items are not PathItems or have a path length of greater than the minimum specified by the user (in points).

This is a first-off rough. It can be easily altered or elaborated.

JET