JS: UEStudio - Imitate SciTE's Ctrl-D behaviour

// This script will imitate SciTE's Ctrl-D behaviour
// That is, dublicate the line or dublicate the selection
// FichteFoll, 26.02.2012


// wrap into an anonymous function
(function() {
    // aliases
    var ue = UltraEdit;
    var doc = ue.activeDocument;
    //~ var out = ue.outputWindow;

    if (!doc.isSel()) {
        // just dublicate the current line if there is no selection
        doc.dupeLine();
        out.write(doc.selection);
    }
    else {
        var sel = doc.selection, pos = [doc.currentLineNum, doc.currentColumnNum];
        doc.gotoLine(pos[0], pos[1]); // will go to the start of the selection, i.e. first selected char
        doc.write(sel);
        // select the previously selected text again
        doc.gotoLineSelect(pos[0], pos[1]);
    }
    return 1;
})();