Parsing key/value pairs from a string in C++

Question

I\'m working in C++11, no Boost. I have a function that takes as input a std::string that contains a series of key-value pairs, delimited with semicolons, and returns an object

Answer 1

Do you care about performance or readability? If readability is good enough, then pick your favorite version of split from this question and away we go:

std::map tag_map;

for (const std::string& tag : split(input, ';')) {
    auto key_val = split(input, '=');
    tag_map.insert(std::make_pair(key_val[0], key_val[1]));
}


S s{std::stoi(tag_map["top"]),
    std::stoi(tag_map["bottom"]),
    tag_map["name"]};