Jinja2CppMedium

A version of jinja2cpp for inclusion in gd-webview.

Requirements

linux

axel -a -n6 https://archives.boost.io/release/1.74.0/source/boost_1_74_0.tar.gz

tar -xzf boost_1_74_0.tar.gz
rm boost_1_74_0.tar.gz
cd boost_1_74_0

./bootstrap.sh
sudo ./b2 --with-atomic --with-system --with-filesystem variant=release link=static runtime-link=static cflags=-fPIC cxxflags=-fPIC install -a --prefix=/usr/local/boost/

windows

Download the installer boost_1_74_0-msvc-14.2-64.exe

it installs into C:\local\boost_1_74_0

Improvements

• A more straightforward CMakeLists.txt
• Removed git submodules, vendor instead
• Removed support for the nlohmann/json library (only support RapidJSON)
• Removed support for the Conan build system (only support CMake)
• Removed test suite and CI/CD definition(s)
• Added support for ccache (compilation cache)
• Removed documentation

Installation

install into /usr/local/jinja/:

cmake -Bbuild -DCMAKE_INSTALL_PREFIX=/usr/local/jinja/ .
make -Cbuild -j4
sudo make -Cbuild install

Usage

#include <iostream>
#include <string>

#include "jinja2cpp/template.h"

using namespace jinja2;

int main(void) {
    std::string source = R"(
        {% if TrueVal %}
        Hello from Jinja template!
        {% endif %}
    )";

    Template tpl;
    tpl.Load(source);
    ValuesMap params = {
        {"TrueVal", true},
        {"FalseVal", true},
    };
    std::string result = tpl.RenderAsString(params).value();
    std::cout << result << std::endl;
    return 0;
}

RapidJSON:

#include <iostream>
#include <string>

#include "jinja2cpp/template.h"
#include <jinja2cpp/binding/rapid_json.h>

using namespace jinja2;

int main(void) {
    const char *json = R"(
    {
        "message": "Hello World from Parser!",
        "big_int": 100500100500100,
        "bool_true": true
    }
    )";

    rapidjson::Document doc;
    doc.Parse(json);

    std::string source = R"(
        {{ json.message }}
    )";

    Template tpl;
    tpl.Load(source);

    ValuesMap params = {
        {"json", Reflect(doc)},
    };

    std::string result = tpl.RenderAsString(params).value();
    std::cout << result << std::endl;
    return 0;
}

TODO

remove throw everywhere, so we can compile MacOS scons with disable_exceptions=no removed.

License

MPL 2.0