Method output

source/matplot/backend/gnuplot.cpp:116–150

#endif

    bool gnuplot::output(const std::string &filename) {
        if (filename.empty()) {
            output_ = filename;
            terminal_ = default_terminal_type();
            return true;
        }

        // look at the extension
#ifndef CXX_NO_FILESYSTEM
        namespace fs = std::filesystem;
        fs::path p{filename};
        std::string ext = p.extension().string();
#else
        std::string ext = filename.substr(filename.find_last_of('.'));
#endif

        // check terminal for that extension
        SV_CONSTEXPR auto exts = extension_terminal();
        auto it = std::find_if(exts.begin(), exts.end(),
                               [&](const auto &e) { return e.first == ext; });

        // if there is a terminal
        if (it != exts.end()) {
            // terminal name is the file format
            output(filename, std::string(it->second));
            return true;
        } else {
            // set file format to dumb
            std::cerr << "No gnuplot terminal for " << ext << " files"
                      << std::endl;
            std::cerr << "Setting terminal to \"dumb\"" << std::endl;
            output(filename, "dumb");
            return false;
        }
    }

    bool gnuplot::output(const std::string &filename,
                         const std::string &format) {