/// <summary>
/// Execute it in the given document with current position at the given node.
/// </summary>
/// <param name="dom">Document</param>
/// <param name="cursor">Nodes we're currently at</param>
/// <param name="stack">Execution stack</param>
/// <returns>New current nodes</returns>
public ICursor Exec(XNode dom, ICursor cursor, IStack stack)
{
var doc = new XmlDocumentOf(dom).Value();
var pi = new XProcessingInstruction(this.target.Raw(), this.data.Raw());
// if cursor list is empty
if (new LengthOf(cursor).Value() == 0)
{
doc.Root.AddBeforeSelf(pi);
}
else
{
foreach (var node in cursor)
{
(node as XContainer).Add(pi);
}
}
return(cursor);
}
/// <summary>
/// Execute it in the given document with current position at the given node.
/// </summary>
/// <param name="dom">Document</param>
/// <param name="cursor">Nodes we're currently at</param>
/// <param name="stack">Execution stack</param>
/// <returns>New current nodes</returns>
public ICursor Exec(XNode dom, ICursor cursor, IStack stack)
{
var doc = new XmlDocumentOf(dom).Value();
var val = this.value.Raw();
foreach (var node in cursor)
{
var ctn = node as XContainer;
new FailPrecise(
new FailNull(ctn),
new ImpossibleModificationException("Cannot add CData to a node which is not of type XContainer")
).Go();
var cdata = new XCData(val);
(node as XContainer).Add(cdata);
}
return(cursor);
}
/// <summary>
/// Execute it in the given document with current position at the given node.
/// </summary>
/// <param name="dom">Document</param>
/// <param name="cursor">Nodes we're currently at</param>
/// <param name="stack">Execution stack</param>
/// <returns>New current nodes</returns>
public ICursor Exec(XNode dom, ICursor cursor, IStack stack)
{
var targets = new List <XNode>();
var label = name.Raw().ToLower();
foreach (var node in cursor)
{
var ctn = node as XContainer;
new FailPrecise(
new FailNull(ctn),
new ImpossibleModificationException("")
).Go();
var kids = ctn.Elements();
XNode target = null;
foreach (var kid in ctn.Elements())
{
if (kid.Name.LocalName.ToLower() == label)
{
target = kid;
break;
}
}
if (target == null)
{
XDocument doc = new XmlDocumentOf(dom).Value();
target = new XElement(this.name.Raw());
ctn.Add(target);
}
targets.Add(target);
}
return(new DomCursor(targets));
}
