arrays - Parsing strings in C++ by multiple delimiters -

i have string object like:

string test = " [3, 4, 8, 10, 10]\n[12]\n[12, 10,\n 20] " 

and trying parse 3 separate arrays equaling [3, 4, 8, 10, 10], [12], , [12,10, 20]. have parsed comma separated integers array before how go parsing one. unfortunately data have can have newlines mid array otherwise use "getline" function(when reading file string) , ignore brackets.

it seems need first each array own string delimited brackets, , parse each of comma delimination array of integers. work?

if so, how split string brackets unknown number of other strings?

you can use streams , std::getline() std::getline() takes delimiter parameter:

int main() {     std::string test = "[3, 4, 8, 10, 10]\n[12]\n[12, 10,\n 20]";      // make data stream (could std::ifstream)     std::istringstream iss(test);      // working vars     std::string skip, item;      // between square braces     // skip opening '[' getline item closing ']'     while(std::getline(std::getline(iss, skip, '['), item, ']'))     {         // item = "3, 4, 8, 10, 10"          // store numbers in vector (not array)         std::vector<int> v;          // convert item stream         std::istringstream iss(item);          // separated commas         while(std::getline(iss, item, ','))             v.push_back(std::stoi(item));          // display results         std::cout << "list:" << '\n';         for(auto i: v)             std::cout << "\t" << << '\n';     } } 

output:

list:     3     4     8     10     10 list:     12 list:     12     10     20