void Xml::insertTopLevelNodeBefore(const Xml::node_iterator& beforeThis,
Xml::Node insertThis) {
const char* method = "Xml::insertTopLevelNodeBefore()";
// Check that the supplied Node is OK.
SimTK_ERRCHK_ALWAYS(insertThis.isValid(), method,
"The supplied Node handle was empty.");
SimTK_ERRCHK_ALWAYS(insertThis.isOrphan(), method,
"The Node was not an orphan so can't be inserted.");
SimTK_ERRCHK1_ALWAYS(Comment::isA(insertThis) || Unknown::isA(insertThis),
method, "The Node had NodeType %s, but only Comment and Unknown nodes"
" can be inserted at the topmost document level.",
insertThis.getNodeTypeAsString().c_str());
// If no iterator, add the Node to the end and we're done.
if (beforeThis == node_end()) {
updImpl().m_tixml.LinkEndChild(insertThis.updTiNodePtr());
return;
}
// There is an iterator, make sure it's a top-level one.
SimTK_ERRCHK_ALWAYS(beforeThis->isTopLevelNode(), method,
"The node_iterator did not refer to a top-level Node.");
updImpl().m_tixml.LinkBeforeChild(beforeThis->updTiNodePtr(),
insertThis.updTiNodePtr());
}
/*static*/ bool Xml::Text::isA(const Xml::Node& node)
{ if (!node.isValid()) return false;
return node.getTiNode().ToText() != 0; }
/*static*/ bool Xml::Unknown::isA(const Xml::Node& node)
{ if (!node.isValid()) return false;
return node.getTiNode().ToUnknown() != 0; }