Add version, expand example

Author: karnkaul

CMakeLists.txt

@@ -12,7 +12,7 @@ if("${CMAKE_BUILD_TYPE}" STREQUAL "")
 endif()
 
 # build version
-set(build_version 0.2.0)
+set(build_version 0.3.0)
 
 # project parameters
 set(project_name forest)
@@ -63,6 +63,9 @@ target_include_directories(${PROJECT_NAME} INTERFACE
   "$<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}/include>"
   "$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>"
 )
+source_group(TREE "${CMAKE_CURRENT_SOURCE_DIR}" FILES include/forest/forest.hpp)
+
+configure_file(cmake/forest_version.hpp.in "${CMAKE_CURRENT_BINARY_DIR}/include/forest/forest_version.hpp" @ONLY)
 
 # examples
 if(FOREST_BUILD_EXAMPLE)

cmake/forest_version.hpp.in

@@ -0,0 +1,5 @@
+#include <string_view>
+
+namespace forest {
+inline constexpr std::string_view version_v = "@PROJECT_VERSION@";
+}

example/CMakeLists.txt

@@ -1,7 +1,16 @@
-add_executable(forest-example)
-target_link_libraries(forest-example PRIVATE forest::forest)
-target_sources(forest-example PRIVATE forest-example.cpp)
+cmake_minimum_required(VERSION 3.17 FATAL_ERROR)
+
+project(forest-example)
+
+if(NOT TARGET forest)
+  find_package(forest REQUIRED CONFIG)
+endif()
+
+add_executable(${PROJECT_NAME})
+target_link_libraries(${PROJECT_NAME} PRIVATE forest::forest)
+target_sources(${PROJECT_NAME} PRIVATE forest-example.cpp)
+source_group(TREE "${CMAKE_CURRENT_SOURCE_DIR}" FILES forest-example.cpp)
 
 if(CMAKE_CXX_COMPILER_ID MATCHES "^Clang$" OR CMAKE_CXX_COMPILER_ID MATCHES "^GNU$")
-  target_compile_options(forest-example PRIVATE -Wall -Wextra -Wpedantic)
+  target_compile_options(${PROJECT_NAME} PRIVATE -Wall -Wextra -Wpedantic)
 endif()

example/forest-example.cpp

@@ -5,5 +5,8 @@ constexpr auto foo = forest::literal<64>("<rgb=500><b><i>hello</b></i></rgb> wor
 
 int main() {
 	std::cout << foo << '\n';
-	forest::print("<invert>forest</invert>\n");
+	auto str = std::string("<invert>forest</invert> <dim>v");
+	str += forest::version_v;
+	str += "</dim>\n";
+	forest::print(str);
 }

include/forest/forest.hpp

@@ -6,6 +6,10 @@
 #include <iterator>
 #include <string>
 
+#if __has_include(<forest/forest_version.hpp>)
+#include <forest/forest_version.hpp>
+#endif
+
 namespace forest {
 ///
 /// \brief Interpolate escape sequences through text and write characters to out