add string-view-lite v1.7.0 (#1424)

packages/s/string-view-lite/xmake.lua

@@ -0,0 +1,41 @@
+package("string-view-lite")
+
+    set_kind("library", {headeronly = true})
+    set_homepage("https://github.com/martinmoene/string-view-lite")
+    set_description("string_view lite - A C++17-like string_view for C++98, C++11 and later in a single-file header-only library")
+    set_license("BSL-1.0")
+
+    add_urls("https://github.com/martinmoene/string-view-lite/archive/refs/tags/$(version).tar.gz",
+             "https://github.com/martinmoene/string-view-lite.git")
+    add_versions("v1.7.0", "265eaec08c4555259b46f5b03004dbc0f7206384edfac1cd5a837efaa642e01c")
+
+    add_deps("cmake")
+    on_install(function (package)
+        local configs = {
+            "-DSTRING_VIEW_LITE_OPT_BUILD_TESTS=OFF",
+            "-DSTRING_VIEW_LITE_OPT_BUILD_EXAMPLES=OFF",
+        }
+
+        import("package.tools.cmake").install(package, configs)
+    end)
+
+    on_test(function(package)
+        assert(package:check_cxxsnippets({
+            test = [[
+                #include <iostream>
+                #include <nonstd/string_view.hpp>
+
+                using namespace nonstd::literals;
+                using namespace nonstd;
+
+                void write(string_view sv) { std::cout << sv; }
+
+                void test() {
+                    write("hello");
+                    write(std::string(", "));
+                    write("world!"_sv);   // nonstd::string_view
+                }
+            ]]
+        }, {configs = {languages = "c++11"}}))
+    end)
+