I tend to fall back on scanf when I have to parse simple text files. - Simple string parsing with C++

char line[SOME_SIZE];
while (fgets(line, SOME_SIZE, file)) {
    int x, y, z;
    if (3 == sscanf(line, "foo: [%d %d %d]", &x, &y, &z)) {
        continue;
    }
    float w;
    if (1 == sscanf(line, "baz: %f", &w)) {
        continue;
    }
}

see also:

• Parsing Command Line Arguments in C++?
  • argparse - A simple header only command line argument parser
  • Argengine - simple CLI argument parser ( lib). The basic principle is that for each option a lambda callback is added.
• toml++ - TOML (.ini) config parser and serializer for c++
• json.hpp - Json for modern c++ - single-header
• mini-yaml - Single header YAML 1.0 C++11 serializer/deserializer.