How can I render the content without errors?

[afengsoft]

I want to render HTML in a way that, even if an error occurs, the output still contains as much HTML content as possible. Any unrecognized parts should be output as-is.

If a key is missing or does not exist in the JSON data, {{key}} should output an empty string instead of throwing an error. Otherwise, the error tolerance would be too poor. For example:

nlohmann::json data;
data["name"] = "world";

auto result = inja::render(R"(Guest List:
 ##for guest in guests
    {{ loop.index1 }}: {{ guest }}
 ##endfor )", data);`

I expect the result to be "Guest List:" instead of throwing an exception or stopping execution. The rendering should recognize as much as possible, and any unrecognized parts should be output as-is.