private static void ConvertElementContentToEntities(XmlDocument xmlDocument, EntityMapDictionary entityTranslate, XmlElement element)
{
if (element.HasAttributes)
{
foreach (XmlAttribute attribute in element.Attributes)
{
if (attribute.Value.Length > 0)
{
ConvertTextNodesToEnties(xmlDocument, entityTranslate, attribute);
}
}
}
if (element.IsEmpty)
{
return;
}
ConvertTextNodesToEnties(xmlDocument, entityTranslate, element);
for (XmlNode currentNode = element.FirstChild; currentNode != null; currentNode = currentNode.NextSibling)
{
if (currentNode is XmlElement)
{
ConvertElementContentToEntities(xmlDocument, entityTranslate, (XmlElement)currentNode);
}
}
}
private static void ConvertTextNodesToEnties(XmlDocument xmlDocument, EntityMapDictionary entityTranslate, XmlNode parentNode)
{
for (XmlNode currentNode = parentNode.FirstChild; currentNode != null; currentNode = currentNode.NextSibling)
{
if (currentNode is XmlText)
{
string text = currentNode.InnerText;
for (int i = 0; i < text.Length; i++)
{
char c = text[i];
if (entityTranslate.ContainsKey(c))
{
if (i > 0)
{
if (i == text.Length - 1)
{
XmlNode nextNode = parentNode.InsertAfter(xmlDocument.CreateEntityReference(entityTranslate[c]), currentNode);
currentNode.InnerText = text = currentNode.InnerText.Substring(0, i);
XmlNode node = currentNode;
if (ReferenceEquals(currentNode = currentNode.NextSibling, nextNode))
{
break;
}
currentNode = node;
}
else
{
parentNode.InsertBefore(xmlDocument.CreateTextNode(text.Substring(0, i)), currentNode);
parentNode.InsertBefore(xmlDocument.CreateEntityReference(entityTranslate[c]), currentNode);
currentNode.InnerText = text = currentNode.InnerText.Substring(i + 1);
}
i = -1;
}
else if (text.Length == 1)
{
XmlNode nextNode = xmlDocument.CreateEntityReference(entityTranslate[c]);
parentNode.ReplaceChild(nextNode, currentNode);
currentNode = nextNode;
break;
}
else
{
parentNode.InsertBefore(xmlDocument.CreateEntityReference(entityTranslate[c]), currentNode);
currentNode.InnerText = text = currentNode.InnerText.Substring(1);
i--;
}
}
}
}
}
}