Method readSamples

src/samples/samples.h:19–39

    vector<wstring> _samples;

    void readSamples(const string& file = "") {
        string path = file;
        if (path.empty()) path = LaTeX::getResRootPath() + "/SAMPLES.tex";
        string line = "";
        string sample = "";
        std::ifstream f(path);
        if (f.is_open()) {
            while (getline(f, line)) {
                if (!line.empty() &&
                    !isSpace(line) &&
                    std::all_of(line.begin(), line.end(), [](char c) { return c == '%'; })) {
                    add(sample);
                    sample = "";
                } else {
                    if (!line.empty() && !isSpace(line)) sample += line + "\n";
                }
            }
            f.close();
        }
        add(sample);
    }

    void add(const string& str) {
        if (str.empty()) return;