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しーぷらぷらの練習した。任意の区切り文字で文字列を分割してvectorに入れる。

#include <iostream>
#include <string>
#include <vector>
using namespace std;

vector<string> split(string str, string delims){
  vector<string> result;
  int begin = -1;
  int end = str.find_first_of(delims);
  while(end != str.npos){
    result.push_back(str.substr(begin+1, end-begin-1));
    begin = end;
    end = str.find_first_of(delims, begin+1);
  }
  result.push_back(str.substr(begin+1));
  return result;
}

void test(string str, string delims){
  cout << "string: \"" << str << "\"" << endl;
  cout << "delims: \"" << delims << "\"" << endl;
  cout << "result: ";

  vector<string> v = split(str, delims);
  for(int i = 0; i < v.size(); i++){
    cout << "\"" << v[i] << "\" ";
  }
  cout << "\n--------" << endl;
}

int main()
{
  test("a b c d e", " ");
  test("a,b,c,d,e", ",");
  test("a b,c d,e", " ,");
  test("a|b,c&d(e", "|,&(");
  test("abcde", " ");
  return 0;
}

出力

string: "a b c d e"
delims: " "
result: "a" "b" "c" "d" "e" 
--------
string: "a,b,c,d,e"
delims: ","
result: "a" "b" "c" "d" "e" 
--------
string: "a b,c d,e"
delims: " ,"
result: "a" "b" "c" "d" "e" 
--------
string: "a|b,c&d(e"
delims: "|,&("
result: "a" "b" "c" "d" "e" 
--------
string: "abcde"
delims: " "
result: "abcde" 
--------