ssp: add package (#2640)

packages/s/ssp/xmake.lua

@@ -0,0 +1,27 @@
+package("ssp")
+    set_kind("library", {headeronly = true})
+    set_homepage("https://github.com/red0124/ssp")
+    set_description("C++ CSV parser")
+    set_license("MIT")
+
+    add_urls("https://github.com/red0124/ssp/archive/refs/tags/$(version).tar.gz",
+             "https://github.com/red0124/ssp.git")
+
+    add_versions("v1.6.1", "4cdf75959b0a5fabd0b3e6ec1bad41d7c3f298d5b7f822d6e12b7e4d7dfcdd34")
+
+    add_deps("cmake", "fast_float")
+
+    on_install(function (package)
+        import("package.tools.cmake").install(package, configs)
+        os.tryrm(package:installdir("include", "fast_float"))
+    end)
+
+    on_test(function (package)
+        assert(package:check_cxxsnippets({test = [[
+            #include <ss/converter.hpp>
+            void test() {
+                auto converter = ss::converter{};
+                auto val = converter.convert<int>("5");
+            }
+        ]]}, {configs = {languages = "c++17"}}))
+    end)