visitPrescript method
Implementation
@override
String visitPrescript(PrescriptNode node) {
final base = visit(node.base);
final preSub = node.preSubscript != null
? visit(node.preSubscript!)
: "<none/>";
final preSup = node.preSuperscript != null
? visit(node.preSuperscript!)
: "<none/>";
return "<mmultiscripts>$base<none/><none/><mprescripts/>$preSub$preSup</mmultiscripts>";
}