Implement docpp::version() function, which returns the library version.

CMakeLists.txt

@@ -7,6 +7,12 @@ project(docpp VERSION 0.0.1
     LANGUAGES CXX
 )
 
+option(GENERATE_PKGBUILD "Generate PKGBUILD" OFF)
+option(GENERATE_EBUILD "Generate ebuild" OFF)
+option(BUILD_TARBALL "Build tarball" OFF)
+
+add_compile_definitions(DOCPP_VERSION="${PROJECT_VERSION}")
+
 include(GNUInstallDirs)
 include(CMakePackageConfigHelpers)
 

include/docpp.hpp

@@ -13,6 +13,7 @@
 #include <exception>
 #include <utility>
 #include <type_traits>
+#include <tuple>
 
 /**
  * @brief A namespace to represent HTML elements and documents
@@ -1684,4 +1685,10 @@ namespace docpp {
                 bool operator!=(const Stylesheet& stylesheet) const;
         };
     } // namespace CSS
+
+    /**
+     * @brief Get the version of the library
+     * @return std::tuple<int, int, int> The version of the library
+     */
+    std::tuple<int, int, int> version();
 } // namespace docpp

src/docpp.cpp

@@ -1302,3 +1302,25 @@ std::string docpp::CSS::Stylesheet::get(const Formatting formatting, const int t
 
     return std::move(ret);
 }
+
+std::tuple<int, int, int> docpp::version() {
+#ifdef DOCPP_VERSION
+    std::string version{DOCPP_VERSION};
+
+    if (version.find('.') != std::string::npos) {
+        std::string major = version.substr(0, version.find('.'));
+        version = version.substr(version.find('.') + 1);
+
+        if (version.find('.') != std::string::npos) {
+            std::string minor = version.substr(0, version.find('.'));
+            version = version.substr(version.find('.') + 1);
+
+            if (version.find('.') != std::string::npos) {
+                std::string patch = version.substr(0, version.find('.'));
+                return {std::stoi(major), std::stoi(minor), std::stoi(patch)};
+            }
+        }
+    }
+#endif
+    return {};
+}

tests/test.cpp

@@ -2015,6 +2015,14 @@ inline namespace General {
         REQUIRE(docpp::CSS::Element::npos == -1);
         REQUIRE(docpp::CSS::Stylesheet::npos == -1);
     }
+
+    void test_version() {
+        std::tuple<int, int, int> version = docpp::version();
+
+        REQUIRE(std::get<0>(version) >= 0);
+        REQUIRE(std::get<1>(version) >= 0);
+        REQUIRE(std::get<2>(version) >= 0);
+    }
 }
 
 /**
@@ -2023,6 +2031,7 @@ inline namespace General {
 SCENARIO("Test general", "[GENERAL]") {
     General::test_exceptions();
     General::test_npos_values();
+    General::test_version();
 }
 
 /**