internal static XElement[] SplitText(Text t, int index)
{
if (index < t.startIndex || index > t.EndIndex)
throw new ArgumentOutOfRangeException("index");
XElement splitLeft = null, splitRight = null;
if (t.Xml.Name.LocalName == "t" || t.Xml.Name.LocalName == "delText")
{
// The origional text element, now containing only the text before the index point.
splitLeft = new XElement(t.Xml.Name, t.Xml.Attributes(), t.Xml.Value.Substring(0, index - t.startIndex));
if (splitLeft.Value.Length == 0)
splitLeft = null;
else
PreserveSpace(splitLeft);
// The origional text element, now containing only the text after the index point.
splitRight = new XElement(t.Xml.Name, t.Xml.Attributes(), t.Xml.Value.Substring(index - t.startIndex, t.Xml.Value.Length - (index - t.startIndex)));
if (splitRight.Value.Length == 0)
splitRight = null;
else
PreserveSpace(splitRight);
}
else
{
if (index == t.EndIndex)
splitLeft = t.Xml;
else
splitRight = t.Xml;
}
return
(
new XElement[]
{
splitLeft,
splitRight
}
);
}
internal void GetFirstTextEffectedByEditRecursive(XElement Xml, int index, ref int count, ref Text theOne, EditType type = EditType.ins)
{
count += HelperFunctions.GetSize(Xml);
if (count > 0 && ((type == EditType.del && count > index) || (type == EditType.ins && count >= index)))
{
theOne = new Text(Document, Xml, count - HelperFunctions.GetSize(Xml));
return;
}
if (Xml.HasElements)
foreach (XElement e in Xml.Elements())
if (theOne == null)
GetFirstTextEffectedByEditRecursive(e, index, ref count, ref theOne);
}