code. compile. run. debug. share.
Source Code
Language
#include <iostream>
#include <string>
#include <format>
#include <vector>
std::string my_format(const std::string_view &fmt, const std::vector<std::string>& list) {
std::string result;
std::string::size_type start = 0, pos, end;
std::vector<std::string>::size_type idx = 0;
while ((pos = fmt.find('{', start)) != std::string::npos) {
if (pos > start) result += fmt.substr(start, pos-start);
if ((end = fmt.find('}', pos+1)) == std::string::npos) break;
++end;
result += std::vformat(fmt.substr(pos, end-pos), std::make_format_args(list.at(idx++)));
start = end;
}
if (start < fmt.size()) result += fmt.substr(start);
return result;
}
int main()
{
std::cout << my_format("{} {} my name is {}", {"Hello", "World", "Dess"});
return 0;
}
Compiling Program...
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