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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 <boost/regex.hpp>
- #include <string>
- 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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