chore: Add course material

397/SolutionEx71Bonus/PrintVisitor.cpp

@@ -0,0 +1,24 @@
+#include "PrintVisitor.h"
+#include "CompanyEntry.h"
+#include "GroupEntry.h"
+#include "PersonEntry.h"
+#include <iostream>
+
+void PrintVisitor::visit(const PersonEntry &pe) {
+    std::cout << indent << "Person:  " << pe.getName() << ' ' << pe.getPhone() << '\n';
+}
+
+void PrintVisitor::visit(const CompanyEntry &ce) {
+    std::cout << indent << "Company: " << ce.getName() << " <" << ce.getCategory() << "> " << ce.getPhone() << '\n';
+}
+
+void PrintVisitor::visit(const GroupEntry &ge) {
+    std::cout << indent << "Group: " << ge.getName() << '\n';
+
+    indent += "  ";
+}
+
+void PrintVisitor::unVisit(const GroupEntry &) {
+    // Get rid of the extra indent we added
+    indent = indent.substr(indent.length() - 2, 2);
+}