Imoproved

Author: snandasena

CMakeLists.txt

@@ -4,12 +4,11 @@ project(design_patterns)
 set(CMAKE_CXX_STANDARD 17)
 FIND_PACKAGE(Boost 1.67.0 REQUIRED)
 
-set(CMAKE_CXX_FLAGS "-fsanitize=address -ggdb3 -Wall -Wextra")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fsanitize=address -ggdb3 -Wall -Wextra")
+
 add_definitions(-std=c++17)
 add_definitions(-DCMAKE_BUILD_TYPE=Debug)
 
-set(CXX_FLAGS "-fsanitize=address -ggdb3 -Wall -Wextra")
-
 add_subdirectory(Udemy)
 
 # creational

Udemy/builder/CMakeLists.txt

@@ -2,4 +2,5 @@ project(builder)
 
 #add_executable(motivation src/motivation_demo.cpp)
 #add_executable(motivation_v1 src/motivation_improved_v1.cpp)
-add_executable(fluent_builder src/fluent_builder.cpp)
+#add_executable(fluent_builder src/fluent_builder.cpp)
+add_executable(groovy_style_builder src/groovy_style_builder.cpp)

Udemy/builder/src/groovy_style_builder.cpp

@@ -0,0 +1,85 @@
+//
+// Created by sajith on 6/10/22.
+//
+
+
+#include <iostream>
+#include <sstream>
+#include <vector>
+#include <memory>
+
+using namespace std;
+
+
+struct Tag
+{
+    string name;
+    string text;
+    vector<Tag> children;
+    vector<pair<string, string >> attributes;
+
+    friend ostream &operator<<(ostream &out, const Tag &tag)
+    {
+        out << "<" << tag.name;
+
+        for (const auto &[first, second]: tag.attributes)
+        {
+            out << " " << first << "=\"" << second << "\"";
+        }
+
+        if (tag.children.empty() && tag.text.empty())
+        {
+            out << "/>" << endl;
+        }
+        else
+        {
+            out << ">" << endl;
+            if (!tag.text.empty())
+            {
+                out << tag.text << endl;
+            }
+
+            for (const auto &child: tag.children)
+            {
+                out << child;
+            }
+            out << "</" << tag.name << ">" << endl;
+        }
+        return out;
+    }
+
+protected:
+
+public:
+
+    Tag(const string &n, const string &t) : name{n}, text{text} {}
+
+    Tag(const string &n, const vector<Tag> &c) : name{n}, children(c) {}
+};
+
+struct P : Tag
+{
+    P(const string &text) : Tag{"p", text} {}
+
+    P(initializer_list<Tag> children) : Tag{"p", children} {}
+};
+
+struct IMG : Tag
+{
+    explicit IMG(const string &url) : Tag{"img", ""}
+    {
+        attributes.emplace_back(make_pair("src", url));
+    }
+};
+
+int main()
+{
+    cout <<
+         P{
+                 IMG{"http.example.com/image.png"}
+         }
+         << endl;
+
+    return 0;
+}
+