C++: storing CSV in contianer

I have a std::string开发者_JS百科 that contains comma separated values, i need to store those values in some suitable container e.g. array, vector or some other container. Is there any built in function through which i could do this? Or i need to write custom code for this?

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If you're willing and able to use the Boost libraries, Boost Tokenizer would work really well for this task.

That would look like:

std::string str = "some,comma,separated,words";
typedef boost::tokenizer<boost::char_separator<char> > tokenizer;
boost::char_separator<char> sep(",");
tokenizer tokens(str, sep);
std::vector<std::string> vec(tokens.begin(), tokens.end());

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You basically need to tokenize the string using , as the delimiter. This earlier Stackoverflow thread shall help you with it.

Here is another relevant post.

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I don't think there is any available in the standard library. I would approach like -

1. Tokenize the string based on , delimeter using strtok.
2. Convert it to integer using atoi function.
3. push_back the value to the vector.

If you are comfortable with boost library, check this thread.

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Using AXE parser generator you can easily parse your csv string, e.g.

std::string input = "aaa,bbb,ccc,ddd";
std::vector<std::string> v; // your strings get here
auto value = *(r_any() - ',') >> r_push_back(v); // rule for single value
auto csv = *(value & ',') & value & r_end(); // rule for csv string
csv(input.begin(), input.end());

Disclaimer: I didn't test the code above, it might have some superficial errors.