function incrementFilename(name) {
    if (!name) {
        return '';
    }

    var matches = /^((.*) \()(-?[0-9]+)(\)(\.[a-zA-Z_0-9]+)?)$/ig.exec(name);

    if (matches && matches.length === 6) {
        // The file name already has an incremented number in the name (e.g. 'file (1).png' or 'file (1)')
        return matches[1] + (parseInt(matches[3]) + 1) + matches[4];
    }

    matches = /^(.*)(\.[a-zA-Z_0-9]+)$/ig.exec(name);

    if (matches && matches.length === 3) {
        // The file name has not yet an increment, but has an extension (e.g. 'file.png')
        return matches[1] + ' (1)' + matches[2];
    }

    // The name has no increment and no extension
    return name + ' (1)';
}