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/*
*
* Copyright (c) 1998-2002
* John Maddock
*
* Use, modification and distribution are subject to the
* Boost Software License, Version 1.0. (See accompanying file
* LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
*
*/
/*
* LOCATION: see http://www.boost.org for most recent version.
* FILE credit_card_example.cpp
* VERSION see <boost/version.hpp>
* DESCRIPTION: Credit card number formatting code.
*/
#include <string>
#include <boost/regex.hpp>
bool validate_card_format(const std::string& s)
{
static const boost::regex e("(\\d{4}[- ]){3}\\d{4}");
return boost::regex_match(s, e);
}
const boost::regex e("\\A(\\d{3,4})[- ]?(\\d{4})[- ]?(\\d{4})[- ]?(\\d{4})\\z");
const std::string machine_format("\\1\\2\\3\\4");
const std::string human_format("\\1-\\2-\\3-\\4");
std::string machine_readable_card_number(const std::string& s)
{
return boost::regex_replace(s, e, machine_format, boost::match_default | boost::format_sed);
}
std::string human_readable_card_number(const std::string& s)
{
return boost::regex_replace(s, e, human_format, boost::match_default | boost::format_sed);
}
#include <iostream>
using namespace std;
int main()
{
string s[4] = { "0000111122223333", "0000 1111 2222 3333",
"0000-1111-2222-3333", "000-1111-2222-3333", };
int i;
for(i = 0; i < 4; ++i)
{
cout << "validate_card_format(\"" << s[i] << "\") returned " << validate_card_format(s[i]) << endl;
}
for(i = 0; i < 4; ++i)
{
cout << "machine_readable_card_number(\"" << s[i] << "\") returned " << machine_readable_card_number(s[i]) << endl;
}
for(i = 0; i < 4; ++i)
{
cout << "human_readable_card_number(\"" << s[i] << "\") returned " << human_readable_card_number(s[i]) << endl;
}
return 0;
}
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