add cpp tag expressions

CHANGELOG.md

@@ -6,6 +6,8 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
 ## [Unreleased]
+### Added
+- [CPP] Add a cpp implementation ([#241](https://github.com/cucumber/tag-expressions/pull/241))
 
 ## [8.1.0] - 2025-11-26
 ### Added

cpp/.gitignore

@@ -0,0 +1 @@
+build

cpp/CMakeLists.txt

@@ -0,0 +1,81 @@
+cmake_minimum_required(VERSION 3.15)
+project(Cucumber-Tag-Expressions VERSION 8.1.0 LANGUAGES CXX)
+
+# Set C++ standard
+set(CMAKE_CXX_STANDARD 17)
+set(CMAKE_CXX_STANDARD_REQUIRED ON)
+set(CMAKE_CXX_EXTENSIONS OFF)
+
+###
+#
+# Options
+#
+###
+option(
+    CUCUMBER_TAG_EXPRESSIONS_BUILD_TESTS
+    "Enable build of the tests"
+    ${CUCUMBER_TAG_EXPRESSIONS_BUILD_TESTS}
+)
+
+option(
+    CUCUMBER_TAG_EXPRESSIONS_ENABLE_COVERAGE
+    "Enable compiler flags for code coverage measurements"
+    ${CUCUMBER_TAG_EXPRESSIONS_ENABLE_COVERAGE}
+)
+
+###
+#
+# Targets
+#
+###
+add_subdirectory(src)
+add_subdirectory(example)
+add_subdirectory(tests)
+
+###
+#
+# Installation support
+#
+###
+install(TARGETS cucumber-tag-expressions
+    EXPORT cucumber-tag-expressions-targets
+    LIBRARY DESTINATION lib
+    ARCHIVE DESTINATION lib
+    RUNTIME DESTINATION bin
+    INCLUDES DESTINATION include
+)
+
+install(DIRECTORY include/
+    DESTINATION include
+)
+
+install(EXPORT cucumber-tag-expressions-targets
+    FILE cucumber-tag-expressions-targets.cmake
+    NAMESPACE cucumber::
+    DESTINATION lib/cmake/cucumber-tag-expressions
+)
+
+###
+#
+# Package configuration
+#
+###
+include(CMakePackageConfigHelpers)
+write_basic_package_version_file(
+    "${CMAKE_CURRENT_BINARY_DIR}/cucumber-tag-expressions-config-version.cmake"
+    VERSION ${PROJECT_VERSION}
+    COMPATIBILITY AnyNewerVersion
+)
+
+configure_file(
+    "${CMAKE_CURRENT_SOURCE_DIR}/cmake/cucumber-tag-expressions-config.cmake.in"
+    "${CMAKE_CURRENT_BINARY_DIR}/cucumber-tag-expressions-config.cmake"
+    @ONLY
+)
+
+install(FILES
+    "${CMAKE_CURRENT_BINARY_DIR}/cucumber-tag-expressions-config.cmake"
+    "${CMAKE_CURRENT_BINARY_DIR}/cucumber-tag-expressions-config-version.cmake"
+    DESTINATION lib/cmake/cucumber-tag-expressions
+)
+