private void appendLine(Document doc, Element parent, BxLine line, Object... hints) {
Element node = doc.createElement("Line");
appendPropertyIfNotNull(doc, node, "LineID", line.getId());
appendBounds(doc, node, "LineCorners", line.getBounds(), hints);
appendPropertyIfNotNull(doc, node, "LineNext", line.getNextId());
appendProperty(doc, node, "LineNumChars", "");
for (BxWord word : line.getWords()) {
appendWord(doc, node, word, hints);
}
parent.appendChild(node);
}
