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Validate International Securities Identification Number: Difference between revisions
Validate International Securities Identification Number (view source)
Revision as of 16:51, 22 January 2018
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/* will print: T F F F T T T */</lang>
=={{header|C++}}==
<lang cpp>
#include <string>
#include <regex>
#include <algorithm>
#include <numeric>
#include <sstream>
bool CheckFormat(const std::string& isin)
{
std::regex isinRegEpx(R"([A-Z]{2}[A-Z0-9]{9}[0-9])");
std::smatch match;
return std::regex_match(isin, match, isinRegEpx);
}
std::string CodeISIN(const std::string& isin)
{
std::string coded;
int offset = 'A' - 10;
for (auto ch : isin)
{
if (ch >= 'A' && ch <= 'Z')
{
std::stringstream ss;
ss << static_cast<int>(ch) - offset;
coded += ss.str();
}
else
{
coded.push_back(ch);
}
}
return std::move(coded);
}
bool CkeckISIN(const std::string& isin)
{
if (!CheckFormat(isin))
return false;
std::string coded = CodeISIN(isin);
// from http://rosettacode.org/wiki/Luhn_test_of_credit_card_numbers#C.2B.2B11
return luhn(coded);
}
#include <iomanip>
#include <iostream>
int main()
{
std::string isins[] = { "US0378331005", "US0373831005", "U50378331005",
"US03378331005", "AU0000XVGZA3", "AU0000VXGZA3",
"FR0000988040" };
for (const auto& isin : isins)
{
std::cout << isin << std::boolalpha << " - " << CkeckISIN(isin) <<std::endl;
}
return 0;
}
</lang>
=={{header|Caché ObjectScript}}==
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