diff -rupN -x .git autoclone/meshlab_repo-src/CMakeLists.txt meshlab_repo_patch/CMakeLists.txt
--- autoclone/meshlab_repo-src/CMakeLists.txt	2024-12-06 18:01:10.831623800 -0800
+++ meshlab_repo_patch/CMakeLists.txt	2024-12-06 18:15:09.647799500 -0800
@@ -16,4 +16,6 @@ option(MESHLAB_USE_DEFAULT_BUILD_AND_INS
 
 option(MESHLAB_IS_NIGHTLY_VERSION "Nightly version of meshlab will be used instead of ML_VERSION" OFF)
 
-add_subdirectory(src)
\ No newline at end of file
+# Disable meshlab project to avoid breaking assimp build (for converting VMRL (.wrl/.x3dv) files to
+# .xml format, just need to compile two source files)
+#add_subdirectory(src)
diff -rupN -x .git autoclone/meshlab_repo-src/src/meshlabplugins/io_x3d/vrml/Parser.cpp meshlab_repo_patch/src/meshlabplugins/io_x3d/vrml/Parser.cpp
--- autoclone/meshlab_repo-src/src/meshlabplugins/io_x3d/vrml/Parser.cpp	2024-12-06 18:01:12.268963700 -0800
+++ meshlab_repo_patch/src/meshlabplugins/io_x3d/vrml/Parser.cpp	2024-12-06 14:19:26.138842300 -0800
@@ -32,11 +32,11 @@
 
 *****************************************************************************/
 
+#include <vector>
 #include <wchar.h>
 #include "Parser.h"
 #include "Scanner.h"
 
-
 namespace VrmlTranslator {
 
 
@@ -95,9 +95,11 @@ bool Parser::WeakSeparator(int n, int sy
 }
 
 void Parser::VrmlTranslator() {
-		QDomElement root = doc->createElement("X3D");
-		QDomElement scene = doc->createElement("Scene");
-		root.appendChild(scene);
+//		QDomElement root = doc->createElement("X3D");
+        pugi::xml_node root = doc->append_child("X3D");
+//		QDomElement scene = doc->createElement("Scene");
+//		root.appendChild(scene);
+        pugi::xml_node scene = root.append_child("Scene");
 		InitX3dNode();
 		if (la->kind == 7) {
 			HeaderStatement();
@@ -108,7 +110,7 @@ void Parser::VrmlTranslator() {
 		ComponentStatements();
 		MetaStatements();
 		Statements(scene);
-		doc->appendChild(root);
+//		doc->appendChild(root);
 }
 
 void Parser::HeaderStatement() {
@@ -147,7 +149,7 @@ void Parser::MetaStatements() {
 		}
 }
 
-void Parser::Statements(QDomElement& parent) {
+void Parser::Statements(pugi::xml_node& parent) {
 		while (StartOf(1)) {
 			Statement(parent);
 		}
@@ -173,16 +175,16 @@ void Parser::ComponentSupportLevel() {
 }
 
 void Parser::ExportStatement() {
-		QString str;
+		std::string str;
 		Expect(14);
 		NodeNameId(str);
 		Expect(15);
 		ExportedNodeNameId();
 }
 
-void Parser::NodeNameId(QString& str) {
+void Parser::NodeNameId(std::string& str) {
 		Expect(1);
-		str = QString(coco_string_create_char(t->val));
+		str = std::string(coco_string_create_char(t->val));
 }
 
 void Parser::ExportedNodeNameId() {
@@ -190,7 +192,7 @@ void Parser::ExportedNodeNameId() {
 }
 
 void Parser::ImportStatement() {
-		QString str;
+		std::string str;
 		Expect(16);
 		InlineNodeNameId();
 		Expect(17);
@@ -217,7 +219,7 @@ void Parser::Metavalue() {
 		Expect(4);
 }
 
-void Parser::Statement(QDomElement& parent) {
+void Parser::Statement(pugi::xml_node& parent) {
 		if (StartOf(2)) {
 			NodeStatement(parent);
 		} else if (la->kind == 16) {
@@ -231,8 +233,8 @@ void Parser::Statement(QDomElement& pare
 		} else SynErr(87);
 }
 
-void Parser::NodeStatement(QDomElement& parent) {
-		QString tagName, attrValue;
+void Parser::NodeStatement(pugi::xml_node& parent) {
+		std::string tagName, attrValue;
 		if (la->kind == 1 || la->kind == 38) {
 			Node(parent, tagName, "");
 		} else if (la->kind == 19) {
@@ -242,17 +244,19 @@ void Parser::NodeStatement(QDomElement&
 		} else if (la->kind == 20) {
 			Get();
 			NodeNameId(attrValue);
-			std::map<QString, QString>::const_iterator iter = defNode.find(attrValue);
+			std::map<std::string, std::string>::const_iterator iter = defNode.find(attrValue);
 			if(iter != defNode.end())
 			{
-			  QDomElement node = doc->createElement(iter->second);
-			  node.setAttribute("USE", attrValue);
-			  parent.appendChild(node);
+//			  QDomElement node = doc->createElement(iter->second);
+              pugi::xml_node node = parent.append_child((iter->second).c_str());
+//			  node.setAttribute("USE", attrValue);
+              node.append_attribute("USE") = attrValue.c_str();
+//			  parent.appendChild(node);
 			}
 		} else SynErr(88);
 }
 
-void Parser::ProtoStatement(QDomElement& parent) {
+void Parser::ProtoStatement(pugi::xml_node& parent) {
 		if (la->kind == 21) {
 			Proto(parent);
 		} else if (la->kind == 34) {
@@ -261,7 +265,7 @@ void Parser::ProtoStatement(QDomElement&
 }
 
 void Parser::RouteStatement() {
-		QString str;
+		std::string str;
 		Expect(35);
 		NodeNameId(str);
 		Expect(17);
@@ -272,22 +276,27 @@ void Parser::RouteStatement() {
 		InputOnlyId(str);
 }
 
-void Parser::Node(QDomElement& parent, QString& tagName, const QString defValue) {
-		bool flag = false; QDomElement node;
+void Parser::Node(pugi::xml_node& parent, std::string& tagName, const std::string defValue) {
+		bool flag = false; pugi::xml_node node;
 		if (la->kind == 1) {
 			NodeTypeId(tagName);
-			std::set<QString>::const_iterator iter = proto.find(tagName);
+			std::set<std::string>::const_iterator iter = proto.find(tagName);
 			if (iter != proto.end())
 			{
-			  node = doc->createElement("ProtoInstance");
-			  node.setAttribute("name", tagName);
+//			  node = doc->createElement("ProtoInstance");
+              node = parent.append_child("ProtoInstance");
+//			  node.setAttribute("name", tagName);
+              node.append_attribute("name") = tagName.c_str();
 			  flag = true;
 			}
-			else
-			  node = doc->createElement(tagName);
+			else {
+//			  node = doc->createElement(tagName);
+              node = parent.append_child(tagName.c_str());
+            }
 			if (defValue != "")
 			{
-			  node.setAttribute("DEF", defValue);
+//			  node.setAttribute("DEF", defValue);
+              node.append_attribute("DEF") = defValue.c_str();
 			  defNode[defValue] = tagName;
 			}
 			Expect(24);
@@ -298,13 +307,14 @@ void Parser::Node(QDomElement& parent, Q
 			Expect(24);
 			ScriptBody();
 			Expect(25);
-			node = doc->createElement("Script");
+//			node = doc->createElement("Script");
+            node = parent.append_child("Script");
 		} else SynErr(90);
-		parent.appendChild(node);
+//		parent.appendChild(node);
 }
 
-void Parser::RootNodeStatement(QDomElement& parent) {
-		QString tagName, attrValue;
+void Parser::RootNodeStatement(pugi::xml_node& parent) {
+		std::string tagName, attrValue;
 		if (la->kind == 1 || la->kind == 38) {
 			Node(parent, tagName, "");
 		} else if (la->kind == 19) {
@@ -314,70 +324,82 @@ void Parser::RootNodeStatement(QDomEleme
 		} else SynErr(91);
 }
 
-void Parser::Proto(QDomElement& parent) {
-		QString name; QDomElement node;
+void Parser::Proto(pugi::xml_node& parent) {
+//        QString name; QDomElement node;
+		std::string name; pugi::xml_node node;
 		Expect(21);
 		NodeTypeId(name);
-		node = doc->createElement("ProtoDeclare");
-		node.setAttribute("name", name);
+//		node = doc->createElement("ProtoDeclare");
+        node = parent.append_child("ProtoDeclare");
+//		node.setAttribute("name", name);
+        node.append_attribute("name") = name.c_str();
 		proto.insert(name);
 		Expect(22);
-		QDomElement interf = doc->createElement("ProtoInterface");
+//		QDomElement interf = doc->createElement("ProtoInterface");
+        pugi::xml_node interf = node.append_child("ProtoInterface");
 		InterfaceDeclarations(interf);
-		node.appendChild(interf);
+//		node.appendChild(interf);
 		Expect(23);
 		Expect(24);
-		QDomElement body = doc->createElement("ProtoBody");
+//		QDomElement body = doc->createElement("ProtoBody");
+        pugi::xml_node body = node.append_child("ProtoBody");
 		ProtoBody(body);
-		node.appendChild(body);
+//		node.appendChild(body);
 		Expect(25);
-		parent.appendChild(node);
+//		parent.appendChild(node);
 }
 
-void Parser::Externproto(QDomElement& parent) {
-		QString name, url;
-		QDomElement node = doc->createElement("ExternProtoDeclare");
+void Parser::Externproto(pugi::xml_node& parent) {
+//        QString name, url;
+		std::string name, url;
+//		QDomElement node = doc->createElement("ExternProtoDeclare");
+        pugi::xml_node node = doc->append_child("ExternProtoDeclare");
 		Expect(34);
 		NodeTypeId(name);
 		Expect(22);
 		ExternInterfaceDeclarations(node);
 		Expect(23);
 		URLList(url);
-		std::set<QString>::const_iterator iter = x3dNode.find(name);
+		std::set<std::string>::const_iterator iter = x3dNode.find(name);
 		if (iter == x3dNode.end())
 		{
-		  node.setAttribute("name", name);
-		  node.setAttribute("url", url);
-		  parent.appendChild(node);
+//		  node.setAttribute("name", name);
+          node.append_attribute("name") = name.c_str();
+//		  node.setAttribute("url", url);
+          node.append_attribute("url") = url.c_str();
+//		  parent.appendChild(node);
+          parent.append_copy(node);
 		  proto.insert(name);
 		}
+        doc->remove_child(node);
 }
 
-void Parser::ProtoStatements(QDomElement& parent) {
+void Parser::ProtoStatements(pugi::xml_node& parent) {
 		while (la->kind == 21 || la->kind == 34) {
 			ProtoStatement(parent);
 		}
 }
 
-void Parser::NodeTypeId(QString& str) {
+void Parser::NodeTypeId(std::string& str) {
 		Expect(1);
-		str = QString(coco_string_create_char(t->val));
+		str = std::string(coco_string_create_char(t->val));
 }
 
-void Parser::InterfaceDeclarations(QDomElement& parent) {
+void Parser::InterfaceDeclarations(pugi::xml_node& parent) {
 		while (StartOf(3)) {
 			InterfaceDeclaration(parent);
 		}
 }
 
-void Parser::ProtoBody(QDomElement& parent) {
+void Parser::ProtoBody(pugi::xml_node& parent) {
 		ProtoStatements(parent);
 		RootNodeStatement(parent);
 		Statements(parent);
 }
 
-void Parser::InterfaceDeclaration(QDomElement& parent) {
-		QString name, type, val; QDomElement node;
+void Parser::InterfaceDeclaration(pugi::xml_node& parent) {
+//        QString name, type, val; QDomElement node;
+		std::string name, type, val; pugi::xml_node node;
 		if (StartOf(4)) {
 			RestrictedInterfaceDeclaration(parent);
 		} else if (la->kind == 32 || la->kind == 33) {
@@ -388,18 +410,23 @@ void Parser::InterfaceDeclaration(QDomEl
 			}
 			FieldType(type);
 			FieldId(name);
+            node = parent.append_child("field");
 			FieldValue(node, "value", false);
-			node = doc->createElement("field");
-			node.setAttribute("name", name);
-			node.setAttribute("type", type);
-			node.setAttribute("accessType", "inputOutput");
-			parent.appendChild(node);
+//			node = doc->createElement("field");
+//			node.setAttribute("name", name);
+            node.append_attribute("name") = name.c_str();
+//			node.setAttribute("type", type);
+            node.append_attribute("type") = type.c_str();
+//			node.setAttribute("accessType", "inputOutput");
+            node.append_attribute("accessType") = "inputOutput";
+//			parent.appendChild(node);
 		} else SynErr(92);
 }
 
-void Parser::RestrictedInterfaceDeclaration(QDomElement& parent) {
-		QString name; QString type; QString val;
-		QDomElement node = doc->createElement("field");
+void Parser::RestrictedInterfaceDeclaration(pugi::xml_node& parent) {
+		std::string name; std::string type; std::string val;
+//		QDomElement node = doc->createElement("field");
+        pugi::xml_node node = parent.append_child("field");
 		if (la->kind == 26 || la->kind == 27) {
 			if (la->kind == 26) {
 				Get();
@@ -408,7 +435,8 @@ void Parser::RestrictedInterfaceDeclarat
 			}
 			FieldType(type);
 			InputOnlyId(name);
-			node.setAttribute("accessType", "inputOnly");
+//			node.setAttribute("accessType", "inputOnly");
+            node.append_attribute("accessType") = "inputOnly";
 		} else if (la->kind == 28 || la->kind == 29) {
 			if (la->kind == 28) {
 				Get();
@@ -417,7 +445,8 @@ void Parser::RestrictedInterfaceDeclarat
 			}
 			FieldType(type);
 			OutputOnlyId(name);
-			node.setAttribute("accessType", "outputOnly");
+//			node.setAttribute("accessType", "outputOnly");
+            node.append_attribute("accessType") = "outputOnly";
 		} else if (la->kind == 30 || la->kind == 31) {
 			if (la->kind == 30) {
 				Get();
@@ -427,14 +456,17 @@ void Parser::RestrictedInterfaceDeclarat
 			FieldType(type);
 			InitializeOnlyId(name);
 			FieldValue(node, "value", false);
-			node.setAttribute("accessType", "initializeOnly");
+//			node.setAttribute("accessType", "initializeOnly");
+            node.append_attribute("accessType") = "initializeOnly";
 		} else SynErr(93);
-		node.setAttribute("name", name);
-		node.setAttribute("type", type);
-		parent.appendChild(node);
+//		node.setAttribute("name", name);
+        node.append_attribute("name") = name.c_str();
+//		node.setAttribute("type", type);
+        node.append_attribute("type") = type.c_str();
+//		parent.appendChild(node);
 }
 
-void Parser::FieldType(QString& str) {
+void Parser::FieldType(std::string& str) {
 		switch (la->kind) {
 		case 40: {
 			Get();
@@ -606,25 +638,25 @@ void Parser::FieldType(QString& str) {
 		}
 		default: SynErr(94); break;
 		}
-		str = QString(coco_string_create_char(t->val));
+		str = std::string(coco_string_create_char(t->val));
 }
 
-void Parser::InputOnlyId(QString& str) {
+void Parser::InputOnlyId(std::string& str) {
 		Expect(1);
-		str = QString(coco_string_create_char(t->val));
+		str = std::string(coco_string_create_char(t->val));
 }
 
-void Parser::OutputOnlyId(QString& str) {
+void Parser::OutputOnlyId(std::string& str) {
 		Expect(1);
-		str = QString(coco_string_create_char(t->val));
+		str = std::string(coco_string_create_char(t->val));
 }
 
-void Parser::InitializeOnlyId(QString& str) {
+void Parser::InitializeOnlyId(std::string& str) {
 		Expect(1);
-		str = QString(coco_string_create_char(t->val));
+		str = std::string(coco_string_create_char(t->val));
 }
 
-void Parser::FieldValue(QDomElement& parent, QString fieldName, bool flag) {
+void Parser::FieldValue(pugi::xml_node& parent, std::string fieldName, bool flag) {
 		if (StartOf(5)) {
 			SingleValue(parent, fieldName, flag);
 		} else if (la->kind == 22) {
@@ -632,21 +664,21 @@ void Parser::FieldValue(QDomElement& par
 		} else SynErr(95);
 }
 
-void Parser::FieldId(QString& str) {
+void Parser::FieldId(std::string& str) {
 		Expect(1);
-		str = QString(coco_string_create_char(t->val));
+		str = std::string(coco_string_create_char(t->val));
 }
 
-void Parser::ExternInterfaceDeclarations(QDomElement& parent) {
+void Parser::ExternInterfaceDeclarations(pugi::xml_node& parent) {
 		while (StartOf(3)) {
 			ExternInterfaceDeclaration(parent);
 		}
 }
 
-void Parser::URLList(QString& url) {
+void Parser::URLList(std::string& url) {
 		if (la->kind == 4) {
 			Get();
-			url = QString(coco_string_create_char(t->val));
+			url = std::string(coco_string_create_char(t->val));
 		} else if (la->kind == 22) {
 			Get();
 			while (la->kind == 4) {
@@ -660,9 +692,10 @@ void Parser::URLList(QString& url) {
 		} else SynErr(96);
 }
 
-void Parser::ExternInterfaceDeclaration(QDomElement& parent) {
-		QString type, name;
-		QDomElement node = doc->createElement("field");
+void Parser::ExternInterfaceDeclaration(pugi::xml_node& parent) {
+		std::string type, name;
+//		QDomElement node = doc->createElement("field");
+        pugi::xml_node node = parent.append_child("field");
 		if (la->kind == 26 || la->kind == 27) {
 			if (la->kind == 26) {
 				Get();
@@ -671,7 +704,8 @@ void Parser::ExternInterfaceDeclaration(
 			}
 			FieldType(type);
 			InputOnlyId(name);
-			node.setAttribute("accessType", "inputOnly");
+//			node.setAttribute("accessType", "inputOnly");
+            node.append_attribute("accessType") = "inputOnly";
 		} else if (la->kind == 28 || la->kind == 29) {
 			if (la->kind == 28) {
 				Get();
@@ -680,7 +714,8 @@ void Parser::ExternInterfaceDeclaration(
 			}
 			FieldType(type);
 			OutputOnlyId(name);
-			node.setAttribute("accessType", "outputOnly");
+//			node.setAttribute("accessType", "outputOnly");
+            node.append_attribute("accessType") = "outputOnly";
 		} else if (la->kind == 30 || la->kind == 31) {
 			if (la->kind == 30) {
 				Get();
@@ -689,7 +724,8 @@ void Parser::ExternInterfaceDeclaration(
 			}
 			FieldType(type);
 			InitializeOnlyId(name);
-			node.setAttribute("accessType", "initializeOnly");
+//			node.setAttribute("accessType", "initializeOnly");
+            node.append_attribute("accessType") = "initializeOnly";
 		} else if (la->kind == 32 || la->kind == 33) {
 			if (la->kind == 32) {
 				Get();
@@ -698,14 +734,17 @@ void Parser::ExternInterfaceDeclaration(
 			}
 			FieldType(type);
 			FieldId(name);
-			node.setAttribute("accessType", "inputOutput");
+//			node.setAttribute("accessType", "inputOutput");
+            node.append_attribute("accessType") = "inputOutput";
 		} else SynErr(97);
-		node.setAttribute("name" , name);
-		node.setAttribute("type", type);
-		parent.appendChild(node);
+//		node.setAttribute("name" , name);
+        node.append_attribute("name") = name.c_str();
+//		node.setAttribute("type", type);
+        node.append_attribute("type") = type.c_str();
+//		parent.appendChild(node);
 }
 
-void Parser::NodeBody(QDomElement& parent, bool flag) {
+void Parser::NodeBody(pugi::xml_node& parent, bool flag) {
 		while (StartOf(6)) {
 			NodeBodyElement(parent, flag);
 		}
@@ -717,24 +756,29 @@ void Parser::ScriptBody() {
 		}
 }
 
-void Parser::NodeBodyElement(QDomElement& parent, bool flag) {
-		QString idName, idProto; QDomElement node;
+void Parser::NodeBodyElement(pugi::xml_node& parent, bool flag) {
+//        QString idName, idProto; QDomElement node;
+		std::string idName, idProto; pugi::xml_node node;
 		if (la->kind == 1) {
 			Get();
-			idName = QString(coco_string_create_char(t->val));
+			idName = std::string(coco_string_create_char(t->val));
 			if (StartOf(8)) {
 				FieldValue(parent, idName, flag);
 			} else if (la->kind == 39) {
 				Get();
 				Expect(1);
-				idProto = QString(coco_string_create_char(t->val));
-				node = doc->createElement("IS");
-				QDomElement connect = doc->createElement("connect");
-				connect.setAttribute("nodeField", idName);
-				connect.setAttribute("protoField", idProto);
-				node.appendChild(connect);
-				parent.appendChild(node);
-				
+				idProto = std::string(coco_string_create_char(t->val));
+//				node = doc->createElement("IS");
+                node = parent.append_child("IS");
+//				QDomElement connect = doc->createElement("connect");
+                pugi::xml_node connect = node.append_child("connect");
+//				connect.setAttribute("nodeField", idName);
+                connect.append_attribute("nodeField") = idName.c_str();
+//				connect.setAttribute("protoField", idProto);
+                connect.append_attribute("protoField") = idProto.c_str();
+//				node.appendChild(connect);
+//				parent.appendChild(node);
+
 			} else SynErr(98);
 		} else if (la->kind == 35) {
 			RouteStatement();
@@ -744,7 +788,7 @@ void Parser::NodeBodyElement(QDomElement
 }
 
 void Parser::ScriptBodyElement() {
-		QString str; QDomElement elem;
+		std::string str; pugi::xml_node elem;
 		if (StartOf(6)) {
 			NodeBodyElement(elem, false);
 		} else if (la->kind == 26 || la->kind == 27) {
@@ -798,17 +842,21 @@ void Parser::ScriptBodyElement() {
 		} else SynErr(101);
 }
 
-void Parser::InputOutputId(QString& str) {
+void Parser::InputOutputId(std::string& str) {
 		Expect(1);
-		str = QString(coco_string_create_char(t->val));
+		str = std::string(coco_string_create_char(t->val));
 }
 
-void Parser::SingleValue(QDomElement& parent, QString fieldName, bool flag) {
-		QString value; QDomElement tmpParent = doc->createElement("tmp");
+void Parser::SingleValue(pugi::xml_node& parent, std::string fieldName, bool flag) {
+//        QString value; QDomElement tmpParent = doc->createElement("tmp");
+		std::string value; pugi::xml_node tmpParent = doc->append_child("tmpParent");
 		if (StartOf(9)) {
 			if (la->kind == 4) {
 				Get();
-				value.append(coco_string_create_char(t->val)); value.remove("\"");
+				value.append(coco_string_create_char(t->val)); //value.remove("\"");
+                // TODO: modify quotation removal; below violates const-correctness:
+                //   error: cannot convert ‘std::__cxx11::basic_string<char>::iterator’ to ‘const char*’
+//                value.erase(std::remove(value.begin(), value.end(), '"'), value.end());
 			} else if (la->kind == 2 || la->kind == 3) {
 				if (la->kind == 2) {
 					Get();
@@ -839,29 +887,41 @@ void Parser::SingleValue(QDomElement& pa
 			}
 			if (flag)
 			{
-			  QDomElement node = doc->createElement("fieldValue");
-			  node.setAttribute("name", fieldName);
-			  node.setAttribute("value", value);
-			  parent.appendChild(node);
-			}
-			else
-			  parent.setAttribute(fieldName, value);
+//			  QDomElement node = doc->createElement("fieldValue");
+              pugi::xml_node node = parent.append_child("fieldValue");
+//			  node.setAttribute("name", fieldName);
+              node.append_attribute("name") = fieldName.c_str();
+//			  node.setAttribute("value", value);
+              node.append_attribute("value") = value.c_str();
+//			  parent.appendChild(node);
+			}
+			else {
+//			  parent.setAttribute(fieldName, value);
+              parent.append_attribute(fieldName.c_str()) = value.c_str();
+            }
 		} else if (StartOf(2)) {
 			NodeStatement(tmpParent);
 			if (flag)
 			{
-			  QDomElement tmp = doc->createElement("fieldValue");
-			  tmp.setAttribute("name", fieldName);
-			  tmp.appendChild(tmpParent.firstChildElement());
-			  parent.appendChild(tmp);
-			}
-			else
-			  parent.appendChild(tmpParent.firstChildElement());
+//			  QDomElement tmp = doc->createElement("fieldValue");
+              pugi::xml_node tmp = parent.append_child("fieldValue");
+//			  tmp.setAttribute("name", fieldName);
+              tmp.append_attribute("name") = fieldName.c_str();
+//			  tmp.appendChild(tmpParent.firstChildElement());
+              tmp.insert_child_before(pugi::node_element, tmpParent.first_child());
+//			  parent.appendChild(tmp);
+			}
+			else {
+//              parent.appendChild(tmpParent.firstChildElement());
+              parent.append_copy(tmpParent.first_child());
+            }
 		} else SynErr(102);
+        doc->remove_child(tmpParent);
 }
 
-void Parser::MultiValue(QDomElement& parent, QString fieldName, bool flag) {
-		QString value; QDomElement tmpParent = doc->createElement("tmp");
+void Parser::MultiValue(pugi::xml_node& parent, std::string fieldName, bool flag) {
+//        QString value; QDomElement tmpParent = doc->createElement("tmp");
+		std::string value; pugi::xml_node tmpParent = doc->append_child("tmpParent");
 		Expect(22);
 		if (StartOf(10)) {
 			if (la->kind == 2 || la->kind == 3) {
@@ -873,14 +933,19 @@ void Parser::MultiValue(QDomElement& par
 			}
 			if (flag)
 			{
-			  QDomElement tmp = doc->createElement("fieldValue");
-			  tmp.setAttribute("name", fieldName);
-			  tmp.setAttribute("value", value);
-			  parent.appendChild(tmp);
-			}
-			else
-			  parent.setAttribute(fieldName, value);
-			
+//			  QDomElement tmp = doc->createElement("fieldValue");
+              pugi::xml_node tmp = parent.append_child("fieldValue");
+//			  tmp.setAttribute("name", fieldName);
+              tmp.append_attribute("name") = fieldName.c_str();
+//			  tmp.setAttribute("value", value);
+              tmp.append_attribute("value") = value.c_str();
+//			  parent.appendChild(tmp);
+			}
+			else {
+//              parent.setAttribute(fieldName, value);
+              parent.append_attribute(fieldName.c_str()) = value.c_str();
+            }
+
 		} else if (StartOf(11)) {
 			while (StartOf(2)) {
 				NodeStatement(tmpParent);
@@ -888,28 +953,41 @@ void Parser::MultiValue(QDomElement& par
 					Get();
 				}
 			}
-			QDomElement child;
-			QDomNodeList list = tmpParent.childNodes();
-			QDomElement field = doc->createElement("field");
-			field.setAttribute("name", fieldName);
-			int i = 0;
+//			QDomElement child;
+            pugi::xml_node child;
+//			QDomNodeList list = tmpParent.childNodes();
+            std::vector<pugi::xml_node> list;
+            for (auto item : tmpParent.children()) {
+                list.push_back(item);
+            }
+//			QDomElement field = doc->createElement("field");
+            pugi::xml_node field = parent.append_child("field");
+//			field.setAttribute("name", fieldName);
+            field.append_attribute("name") = fieldName.c_str();
+			unsigned int i = 0;
 			while(i < list.size())
 			{
-			  child = list.at(i).toElement();
-			  if (flag)
-			    field.appendChild(child.cloneNode());
-			  else
-			    parent.appendChild(child.cloneNode());
+			  child = list.at(i);//.toElement();
+			  if (flag) {
+//                field.appendChild(child.cloneNode());
+                  field.append_copy(child);
+              } else {
+//                parent.appendChild(child.cloneNode());
+                  parent.append_copy(child);
+              }
 			  i++;
 			}
-			if (flag)
-			  parent.appendChild(field);
-			
+			if (flag) {
+//              parent.appendChild(field);
+            } else {
+                parent.remove_child(field);
+            }
 		} else SynErr(103);
 		Expect(23);
+        doc->remove_child(tmpParent);
 }
 
-void Parser::MultiNumber(QString& value) {
+void Parser::MultiNumber(std::string& value) {
 		if (la->kind == 2) {
 			Get();
 		} else if (la->kind == 3) {
@@ -932,7 +1010,7 @@ void Parser::MultiNumber(QString& value)
 		}
 }
 
-void Parser::MultiString(QString& value) {
+void Parser::MultiString(std::string& value) {
 		Expect(4);
 		value.append(coco_string_create_char(t->val));
 		if (la->kind == 37) {
@@ -947,7 +1025,7 @@ void Parser::MultiString(QString& value)
 		}
 }
 
-void Parser::MultiBool(QString& value) {
+void Parser::MultiBool(std::string& value) {
 		if (la->kind == 82) {
 			Get();
 		} else if (la->kind == 84) {
@@ -1173,7 +1251,7 @@ void Errors::Warning(const wchar_t *s) {
 }
 
 void Errors::Exception(const wchar_t* s) {
-	wprintf(L"%ls", s); 
+	wprintf(L"%ls", s);
 	exit(1);
 }
 */
diff -rupN -x .git autoclone/meshlab_repo-src/src/meshlabplugins/io_x3d/vrml/Parser.h meshlab_repo_patch/src/meshlabplugins/io_x3d/vrml/Parser.h
--- autoclone/meshlab_repo-src/src/meshlabplugins/io_x3d/vrml/Parser.h	2024-12-06 18:01:12.268963700 -0800
+++ meshlab_repo_patch/src/meshlabplugins/io_x3d/vrml/Parser.h	2024-12-06 18:48:17.891284300 -0800
@@ -35,9 +35,10 @@
 #if !defined(VRML_PARSER_H__)
 #define VRML_PARSER_H__
 
-#include <QtXml>
+#include "contrib/pugixml/src/pugixml.hpp"
+#include <map>
 #include <set>
-
+#include <string>
 
 #include "Scanner.h"
 
@@ -48,7 +49,7 @@ class Errors {
 public:
 	int count;			// number of errors detected
 	wchar_t* stringError;
-	
+
 	Errors();
 	~Errors();
 	void SynErr(int line, int col, int n);
@@ -90,14 +91,15 @@ public:
 	Token *t;			// last recognized token
 	Token *la;			// lookahead token
 
-QDomDocument *doc;
-	
-	std::map<QString, QString> defNode;
-	
-	std::set<QString> proto;
-	
-	std::set<QString> x3dNode;
-	
+    pugi::xml_document doc_;
+    pugi::xml_document *doc = &doc_; // IrrXMLReader* createIrrXMLReader(const char* filename);
+
+    std::map<std::string, std::string> defNode;
+
+	std::set<std::string> proto;
+
+	std::set<std::string> x3dNode;
+
 	void InitX3dNode()
 	{
 	  x3dNode.insert("Arc2D"); x3dNode.insert("ArcClose2D"); x3dNode.insert("BallJoint");
@@ -116,7 +118,7 @@ QDomDocument *doc;
 	  x3dNode.insert("EspduTransform"); x3dNode.insert("ExplosionEmitter");
 	  x3dNode.insert("FillProperties"); x3dNode.insert("FloatVertexAttribute");
 	  x3dNode.insert("FogCoordinate"); x3dNode.insert(" GeneratedCubeMapTexture");
-	  x3dNode.insert("GeoCoordinate"); x3dNode.insert("GeoElevationGrid"); x3dNode.insert("GeoLocation"); 
+	  x3dNode.insert("GeoCoordinate"); x3dNode.insert("GeoElevationGrid"); x3dNode.insert("GeoLocation");
 	  x3dNode.insert("GeoLOD"); x3dNode.insert("GeoMetadata"); x3dNode.insert("GeoOrigin");
 	  x3dNode.insert("GeoPositionInterpolator"); x3dNode.insert("GeoProximitySensor");
 	  x3dNode.insert("GeoTouchSensor"); x3dNode.insert("GeoViewpoint");	x3dNode.insert("GravityPhysicsModel");
@@ -128,7 +130,7 @@ QDomDocument *doc;
 	  x3dNode.insert("Layer"); x3dNode.insert("LayerSet"); x3dNode.insert("Layout");
 	  x3dNode.insert("LayoutGroup"); x3dNode.insert("LayoutLayer"); x3dNode.insert("LinePicker");
 	  x3dNode.insert("LineProperties"); x3dNode.insert("LineSet"); x3dNode.insert("LoadSensor");
-	  x3dNode.insert("LocalFog"); x3dNode.insert("Material"); x3dNode.insert("Matrix3VertexAttribute"); 
+	  x3dNode.insert("LocalFog"); x3dNode.insert("Material"); x3dNode.insert("Matrix3VertexAttribute");
 	  x3dNode.insert("Matrix4VertexAttribute"); x3dNode.insert("MetadataDouble");
 	  x3dNode.insert("MetadataFloat"); x3dNode.insert("MetadataInteger"); x3dNode.insert("MetadataSet");
 	  x3dNode.insert("MetadataString"); x3dNode.insert("MotorJoint"); x3dNode.insert("MultiTexture");
@@ -162,7 +164,7 @@ QDomDocument *doc;
 	  x3dNode.insert(" Viewpoint"); x3dNode.insert("ViewpointGroup"); x3dNode.insert("VolumeEmitter");
 	  x3dNode.insert("VolumePicker"); x3dNode.insert("WindPhysicsModel"); x3dNode.insert("Cylinder"); x3dNode.insert("Sphere");
 	}
-	
+
 
 
 	Parser(Scanner *scanner);
@@ -174,52 +176,52 @@ QDomDocument *doc;
 	void ProfileStatement();
 	void ComponentStatements();
 	void MetaStatements();
-	void Statements(QDomElement& parent);
+	void Statements(pugi::xml_node& parent);
 	void ProfileNameId();
 	void ComponentStatement();
 	void ComponentNameId();
 	void ComponentSupportLevel();
 	void ExportStatement();
-	void NodeNameId(QString& str);
+	void NodeNameId(std::string& str);
 	void ExportedNodeNameId();
 	void ImportStatement();
 	void InlineNodeNameId();
 	void MetaStatement();
 	void Metakey();
 	void Metavalue();
-	void Statement(QDomElement& parent);
-	void NodeStatement(QDomElement& parent);
-	void ProtoStatement(QDomElement& parent);
+	void Statement(pugi::xml_node& parent);
+	void NodeStatement(pugi::xml_node& parent);
+	void ProtoStatement(pugi::xml_node& parent);
 	void RouteStatement();
-	void Node(QDomElement& parent, QString& tagName, const QString defValue);
-	void RootNodeStatement(QDomElement& parent);
-	void Proto(QDomElement& parent);
-	void Externproto(QDomElement& parent);
-	void ProtoStatements(QDomElement& parent);
-	void NodeTypeId(QString& str);
-	void InterfaceDeclarations(QDomElement& parent);
-	void ProtoBody(QDomElement& parent);
-	void InterfaceDeclaration(QDomElement& parent);
-	void RestrictedInterfaceDeclaration(QDomElement& parent);
-	void FieldType(QString& str);
-	void InputOnlyId(QString& str);
-	void OutputOnlyId(QString& str);
-	void InitializeOnlyId(QString& str);
-	void FieldValue(QDomElement& parent, QString fieldName, bool flag);
-	void FieldId(QString& str);
-	void ExternInterfaceDeclarations(QDomElement& parent);
-	void URLList(QString& url);
-	void ExternInterfaceDeclaration(QDomElement& parent);
-	void NodeBody(QDomElement& parent, bool flag);
+	void Node(pugi::xml_node& parent, std::string& tagName, const std::string defValue);
+	void RootNodeStatement(pugi::xml_node& parent);
+	void Proto(pugi::xml_node& parent);
+	void Externproto(pugi::xml_node& parent);
+	void ProtoStatements(pugi::xml_node& parent);
+	void NodeTypeId(std::string& str);
+	void InterfaceDeclarations(pugi::xml_node& parent);
+	void ProtoBody(pugi::xml_node& parent);
+	void InterfaceDeclaration(pugi::xml_node& parent);
+	void RestrictedInterfaceDeclaration(pugi::xml_node& parent);
+	void FieldType(std::string& str);
+	void InputOnlyId(std::string& str);
+	void OutputOnlyId(std::string& str);
+	void InitializeOnlyId(std::string& str);
+	void FieldValue(pugi::xml_node& parent, std::string fieldName, bool flag);
+	void FieldId(std::string& str);
+	void ExternInterfaceDeclarations(pugi::xml_node& parent);
+	void URLList(std::string& url);
+	void ExternInterfaceDeclaration(pugi::xml_node& parent);
+	void NodeBody(pugi::xml_node& parent, bool flag);
 	void ScriptBody();
-	void NodeBodyElement(QDomElement& parent, bool flag);
+	void NodeBodyElement(pugi::xml_node& parent, bool flag);
 	void ScriptBodyElement();
-	void InputOutputId(QString& str);
-	void SingleValue(QDomElement& parent, QString fieldName, bool flag);
-	void MultiValue(QDomElement& parent, QString fieldName, bool flag);
-	void MultiNumber(QString& value);
-	void MultiString(QString& value);
-	void MultiBool(QString& value);
+	void InputOutputId(std::string& str);
+	void SingleValue(pugi::xml_node& parent, std::string fieldName, bool flag);
+	void MultiValue(pugi::xml_node& parent, std::string fieldName, bool flag);
+	void MultiNumber(std::string& value);
+	void MultiString(std::string& value);
+	void MultiBool(std::string& value);
 
 	void Parse();
 
diff -rupN -x .git autoclone/meshlab_repo-src/src/meshlabplugins/io_x3d/vrml/Scanner.cpp meshlab_repo_patch/src/meshlabplugins/io_x3d/vrml/Scanner.cpp
--- autoclone/meshlab_repo-src/src/meshlabplugins/io_x3d/vrml/Scanner.cpp	2024-12-06 18:01:12.268963700 -0800
+++ meshlab_repo_patch/src/meshlabplugins/io_x3d/vrml/Scanner.cpp	2024-12-06 14:21:47.920443100 -0800
@@ -39,7 +39,7 @@
 
 wchar_t* coco_string_create(const wchar_t* value) {
 	wchar_t* data;
-	int len = 0;
+	size_t len = 0;
 	if (value) { len = wcslen(value); }
 	data = new wchar_t[len + 1];
 	wcsncpy(data, value, len);
@@ -63,7 +63,7 @@ wchar_t* coco_string_create_upper(const
 	if (!data) { return NULL; }
 
 	int dataLen = 0;
-	if (data) { dataLen = wcslen(data); }
+	if (data) { dataLen = static_cast<int>(wcslen(data)); }
 
 	wchar_t *newData = new wchar_t[dataLen + 1];
 
@@ -80,7 +80,7 @@ wchar_t* coco_string_create_upper(const
 
 wchar_t* coco_string_create_lower(const wchar_t* data) {
 	if (!data) { return NULL; }
-	int dataLen = wcslen(data);
+	int dataLen = static_cast<int>(wcslen(data));
 	return coco_string_create_lower(data, 0, dataLen);
 }
 
@@ -102,11 +102,11 @@ wchar_t* coco_string_create_lower(const
 
 wchar_t* coco_string_create_append(const wchar_t* data1, const wchar_t* data2) {
 	wchar_t* data;
-	int data1Len = 0;
-	int data2Len = 0;
+    size_t data1Len = 0;
+    size_t data2Len = 0;
 
 	if (data1) { data1Len = wcslen(data1); }
-	if (data2) {data2Len = wcslen(data2); }
+	if (data2) { data2Len = wcslen(data2); }
 
 	data = new wchar_t[data1Len + data2Len + 1];
 
@@ -133,13 +133,13 @@ void coco_string_delete(wchar_t* &data)
 }
 
 int coco_string_length(const wchar_t* data) {
-	if (data) { return wcslen(data); }
+	if (data) { return static_cast<int>(wcslen(data)); }
 	return 0;
 }
 
 bool coco_string_endswith(const wchar_t* data, const wchar_t *end) {
-	int dataLen = wcslen(data);
-	int endLen = wcslen(end);
+	size_t dataLen = wcslen(data);
+    size_t endLen = wcslen(end);
 	return (endLen <= dataLen) && (wcscmp(data + dataLen - endLen, end) == 0);
 }
 
@@ -186,8 +186,8 @@ int coco_string_hash(const wchar_t *data
 // string handling, ascii character
 
 wchar_t* coco_string_create(const char* value) {
-	int len = 0;
-	if (value) { len = strlen(value); }
+    int len = 0;
+	if (value) { len = static_cast<int>(strlen(value)); }
 	wchar_t* data = new wchar_t[len + 1];
 	for (int i = 0; i < len; ++i) { data[i] = (wchar_t) value[i]; }
 	data[len] = 0;
@@ -240,7 +240,7 @@ Buffer::Buffer(FILE* s, bool isUserStrea
 		fileLen = bufLen = bufStart = 0;
 	}
 	bufCapacity = (bufLen>0) ? bufLen : MIN_BUFFER_LENGTH;
-	buf = new unsigned char[bufCapacity];	
+	buf = new unsigned char[bufCapacity];
 	if (fileLen > 0) SetPos(0);          // setup  buffer to position 0 (start)
 	else bufPos = 0; // index 0 is already after the file, thus Pos = 0 is invalid
 	if (bufLen == fileLen && CanSeek()) Close();
@@ -270,7 +270,7 @@ Buffer::Buffer(const unsigned char* buf,
 }
 
 Buffer::~Buffer() {
-	Close(); 
+	Close();
 	if (buf != NULL) {
 		delete [] buf;
 		buf = NULL;
@@ -306,12 +306,12 @@ int Buffer::Peek() {
 
 wchar_t* Buffer::GetString(int beg, int end) {
 	int len = end - beg;
-	wchar_t *buf = new wchar_t[len];
+	wchar_t *retBuf = new wchar_t[len];
 	int oldPos = GetPos();
 	SetPos(beg);
-	for (int i = 0; i < len; ++i) buf[i] = (wchar_t) Read();
+	for (int i = 0; i < len; ++i) retBuf[i] = (wchar_t) Read();
 	SetPos(oldPos);
-	return buf;
+	return retBuf;
 }
 
 int Buffer::GetPos() {
@@ -329,16 +329,16 @@ void Buffer::SetPos(int value) {
 
 	if ((value < 0) || (value > fileLen)) {
 		char msg[50];
-		sprintf(msg, "Buffer out of bounds access, position: %d", value);
+		snprintf(msg, 50, "Buffer out of bounds access, position: %d", value);
 		throw msg;
-		
+
 	}
 
 	if ((value >= bufStart) && (value < (bufStart + bufLen))) { // already in buffer
 		bufPos = value - bufStart;
 	} else if (stream != NULL) { // must be swapped in
 		fseek(stream, value, SEEK_SET);
-		bufLen = fread(buf, sizeof(unsigned char), bufCapacity, stream);
+		bufLen = static_cast<int>(fread(buf, sizeof(unsigned char), bufCapacity, stream));
 		bufStart = value; bufPos = 0;
 	} else {
 		bufPos = fileLen - bufStart; // make Pos return fileLen
@@ -362,7 +362,7 @@ int Buffer::ReadNextStreamChunk() {
 		buf = newBuf;
 		free = bufLen;
 	}
-	int read = fread(buf + bufLen, sizeof(unsigned char), free, stream);
+    int read = static_cast<int>(fread(buf + bufLen, sizeof(unsigned char), free, stream));
 	if (read > 0) {
 		fileLen = bufLen = (bufLen + read);
 		return read;
@@ -416,7 +416,7 @@ Scanner::Scanner(const wchar_t* fileName
 	char *chFileName = coco_string_create_char(fileName);
 	if ((stream = fopen(chFileName, "rb")) == NULL) {
 		char msg[50];
-		sprintf(msg, "Can not open file: %s", chFileName);
+		snprintf(msg, 50, "Can not open file: %s", chFileName);
 		coco_string_delete(chFileName);
 		throw msg;
 	}
@@ -554,7 +554,7 @@ void Scanner::Init() {
 	heapEnd = (void**) (((char*) heap) + HEAP_BLOCK_SIZE);
 	*heapEnd = 0;
 	heapTop = heap;
-	if (sizeof(Token) > HEAP_BLOCK_SIZE) {
+	if constexpr (sizeof(Token) > HEAP_BLOCK_SIZE) {
 		throw "Too small HEAP_BLOCK_SIZE";
 	}
 
@@ -637,18 +637,18 @@ void Scanner::CreateHeapBlock() {
 }
 
 Token* Scanner::CreateToken() {
-	Token *t;
+	Token *tkn;
 	if (((char*) heapTop + (int) sizeof(Token)) >= (char*) heapEnd) {
 		CreateHeapBlock();
 	}
-	t = (Token*) heapTop;
+	tkn = (Token*) heapTop;
 	heapTop = (void*) ((char*) heapTop + sizeof(Token));
-	t->val = NULL;
-	t->next = NULL;
-	return t;
+	tkn->val = NULL;
+	tkn->next = NULL;
+	return tkn;
 }
 
-void Scanner::AppendVal(Token *t) {
+void Scanner::AppendVal(Token *tkn) {
 	int reqMem = (tlen + 1) * sizeof(wchar_t);
 	if (((char*) heapTop + reqMem) >= (char*) heapEnd) {
 		if (reqMem > HEAP_BLOCK_SIZE) {
@@ -656,11 +656,11 @@ void Scanner::AppendVal(Token *t) {
 		}
 		CreateHeapBlock();
 	}
-	t->val = (wchar_t*) heapTop;
+	tkn->val = (wchar_t*) heapTop;
 	heapTop = (void*) ((char*) heapTop + reqMem);
 
-	wcsncpy(t->val, tval, tlen);
-	t->val[tlen] = L'\0';
+	wcsncpy(tkn->val, tval, tlen);
+	tkn->val[tlen] = L'\0';
 }
 
 Token* Scanner::NextToken() {
diff -rupN -x .git autoclone/meshlab_repo-src/src/meshlabplugins/io_x3d/vrml/Scanner.h meshlab_repo_patch/src/meshlabplugins/io_x3d/vrml/Scanner.h
--- autoclone/meshlab_repo-src/src/meshlabplugins/io_x3d/vrml/Scanner.h	2024-12-06 18:01:12.268963700 -0800
+++ meshlab_repo_patch/src/meshlabplugins/io_x3d/vrml/Scanner.h	2024-12-06 14:21:59.453748300 -0800
@@ -52,9 +52,9 @@
 //#define coco_swprintf _snwprintf
 //#elif defined __GNUC__
 //#define coco_swprintf swprintf
-//#else 
+//#else
 //#error unknown compiler!
-//#endif 
+//#endif
 
 #ifdef WIN32
   #ifndef __MINGW32__
@@ -62,7 +62,7 @@
       #define coco_swprintf swprintf_s
     #elif _MSC_VER >= 1300
        #define coco_swprintf _snwprintf
-    #else 
+    #else
        #error unknown compiler!
     #endif
    #else
@@ -106,7 +106,7 @@ void  coco_string_delete(char* &data);
 namespace VrmlTranslator {
 
 
-class Token  
+class Token
 {
 public:
 	int kind;     // token kind
@@ -135,10 +135,10 @@ private:
 	int bufPos;         // current position in buffer
 	FILE* stream;       // input stream (seekable)
 	bool isUserStream;  // was the stream opened by the user?
-	
+
 	int ReadNextStreamChunk();
 	bool CanSeek();     // true if stream can seek otherwise false
-	
+
 public:
 	static const int EoF = COCO_WCHAR_MAX + 1;
 
@@ -146,7 +146,7 @@ public:
 	Buffer(const unsigned char* buf, int len);
 	Buffer(Buffer *b);
 	virtual ~Buffer();
-	
+
 	virtual void Close();
 	virtual int Read();
 	virtual int Peek();
@@ -256,7 +256,7 @@ private:
 	int eofSym;
 	int noSym;
 	int maxT;
-	int charSetSize;
+//	int charSetSize; // unused
 	StartStates start;
 	KeywordMap keywords;
 
@@ -277,7 +277,7 @@ private:
 
 	void CreateHeapBlock();
 	Token* CreateToken();
-	void AppendVal(Token *t);
+	void AppendVal(Token *tkn);
 
 	void Init();
 	void NextCh();
@@ -288,7 +288,7 @@ private:
 
 public:
 	Buffer *buffer;   // scanner buffer
-	
+
 	Scanner(const unsigned char* buf, int len);
 	Scanner(const wchar_t* fileName);
 	Scanner(FILE* s);