insert sub string to another string

Question

I have the next strings:

string str1 = "1,123456,name1,4";
string str2;

I want to insert to str2, the string of str1 (from the 9th letter till the , ).

so str2 should be: name1

if str1 = "2,234567,namenamename,5" , so str2 will be: namenamename (again: from the 9th letter till the , ).

I don't want to use strtok .

any help appreciated!

Answer 1

You could use std::string::find() in combination with std::string::substr() :

std::string::size_type pos = 9;
std::string str1 = "1,123456,name1,4";
std::string::size_type commaPos = str1.find(',', pos);
if (commaPos == std::string::npos)
{
    commaPos = str1.length();
}

std::string str2 = str1.substr(pos, commaPos - pos);

Here is a live example .