Validate vcpkg features

Author: cursey

src/cmake_generator.cpp

@@ -614,6 +614,11 @@ void generate_cmake(const char *path, const parser::Project *parent_project) {
             if (!vcpkg_valid_identifier(package.name)) {
                 throw std::runtime_error("Invalid vcpkg package name '" + package.name + "'");
             }
+            for (const auto &feature : package.features) {
+				if (!vcpkg_valid_identifier(feature)) {
+					throw std::runtime_error("Invalid vcpkg package feature '" + feature + "'");
+				}
+            }
             if (package.features.empty()) {
                 ofs << "    \"" << package.name << '\"';
             } else {