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__int128_t is a non-standard compliant extension in GCC and Clang, but this is not supported by other compilers like MSVC.

Hi and kudos for the awesome library!

Is there a way to do this:

std::string checkTemporary = R"(
(temporary x1)
x1 = 1
(temporary x2)
x2 = 2
(temporary y3)
y3 = 3

(permanent x1)
(permanent x2)

)";


TEST_CASE("Temporary", "[tao]")
{
    tao::json::events::to_value taovalue_consumer;
    auto cnfg = tao::config::from_string(checkTemporary, "test");
    tao::json::events::from_value(taovalue_consumer, cnfg);

    tao::json::nlohmann::to_value<::nlohmann::json> nlohmann_consumer;
    tao::json::events::from_string(nlohmann_consumer, tao::json::to_string(taovalue_consumer.value));

    CHECK(nlohmann_consumer.value.contains("x1"));
    CHECK(nlohmann_consumer.value.contains("x2"));
    CHECK(!nlohmann_consumer.value.contains("y3"));
}

but with something like (permanent x*)?
The use case is that all temporaries with a certain prefix are possible presets. We want to construct a config json with a specific preset for our application by including all the temporaries in one file, and muxing between them when resolving the json without each and every preset appearing in the resolved json - and that's easy; but also to query the list of available temporaries (preset names) by including them in another file and making those with a certain prefix permanent when resolving.

Also, what is the right way to convert to nlohmann::json without going through std::string? Couldn't find it.

Thanks!
Guy.

First of all, kudos for the awesome library!

I'm wondering if there is a way to use an environment variable result within the include token.
Something like this:
foo = (env "config_path") (include "(foo)/presets.base")
Note: this leads to a parsing error in the include token...
Or there is another way to get this done?