/// <summary>The outermost call is special.</summary>
/// <remarks>
/// The outermost call is special. The names almost certainly differ. The
/// qualifiers (and hence options) will differ for an alias to the x-default
/// item of a langAlt array.
/// </remarks>
/// <param name="aliasNode">the alias node</param>
/// <param name="baseNode">the base node of the alias</param>
/// <param name="outerCall">marks the outer call of the recursion</param>
/// <exception cref="iText.Kernel.XMP.XMPException">Forwards XMP errors</exception>
private static void CompareAliasedSubtrees(XMPNode aliasNode, XMPNode baseNode, bool
outerCall)
{
if (!aliasNode.GetValue().Equals(baseNode.GetValue()) ||
aliasNode.GetChildrenLength() != baseNode.GetChildrenLength())
{
throw new XMPException("Mismatch between alias and base nodes", XMPError.BADXMP);
}
if (!outerCall &&
(!aliasNode.GetName().Equals(baseNode.GetName()) || !aliasNode.GetOptions().Equals(baseNode.GetOptions()) ||
aliasNode.GetQualifierLength() != baseNode.GetQualifierLength()))
{
throw new XMPException("Mismatch between alias and base nodes", XMPError.BADXMP);
}
for (IEnumerator an = aliasNode.IterateChildren(), bn = baseNode.IterateChildren();
an.MoveNext() && bn.MoveNext();)
{
XMPNode aliasChild = (XMPNode)an.Current;
XMPNode baseChild = (XMPNode)bn.Current;
CompareAliasedSubtrees(aliasChild, baseChild, false);
}
for (IEnumerator an = aliasNode.IterateQualifier(), bn = baseNode.IterateQualifier();
an.MoveNext() && bn.MoveNext();)
{
XMPNode aliasQual = (XMPNode)an.Current;
XMPNode baseQual = (XMPNode)bn.Current;
CompareAliasedSubtrees(aliasQual, baseQual, false);
}
}
