regexSearch, C++ (clang)

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#include <iostream>
#include <string>
#include <vector>
#include <sstream>
#include <regex>
#include <utility>
using namespace std;

int main() 
{
    auto xml_str = R"(< thing TYPE="array" UNITS="meters">1.0,1.3,1.2,1.7,1.4,1.9< /thing>)"s;
    auto r       = regex(R"(>(\d.*\d)<)"s);
    auto m       = smatch{};
    auto vec     = vector<pair<double, double>>{};

// Determine if there is a match
    auto beg = cbegin(xml_str);
    while (regex_search(beg, cend(xml_str), m, r)) {
        // Create a string that holds the 1st capture group
        auto str = string(m[1].first, m[1].second);
        auto ss = stringstream{str};
        auto token1 = ""s;
        auto token2 = ""s;
        auto d1 = double{};
        auto d2 = double{};
        // Parse
        while (getline(ss, token1, ',')) {
            getline(ss, token2, ',');
            d1 = stod(token1);
            d2 = stod(token2);
            vec.emplace_back(make_pair(d1, d2));
        }
        // Set new start position for next search
        beg = m[0].second;
    }

// Print vector content
    auto count = 1;
    for (const auto& i : vec) {
        if (count == 3) {
            cout << "(" << i.first << ", " << i.second << ")\n";
            count = 1;
        } 
        else {
            cout << "(" << i.first << ", " << i.second << "), ";
            count++;
        }
    }
}

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Compilation time: 2.52 sec, absolute running time: 0.14 sec, cpu time: 0 sec, memory peak: 3 Mb, absolute service time: 2,67 sec