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80 lines
2.1 KiB
C++
80 lines
2.1 KiB
C++
/*
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*
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* Copyright (c) 1998-2002
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* John Maddock
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*
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* Use, modification and distribution are subject to the
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* Boost Software License, Version 1.0. (See accompanying file
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* LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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*
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*/
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/*
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* LOCATION: see http://www.boost.org for most recent version.
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* FILE credit_card_example.cpp
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* VERSION see <boost/version.hpp>
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* DESCRIPTION: Credit card number formatting code.
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*/
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#if (defined(__cpp_lib_modules) || (defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 193833135))) && !defined(TEST_HEADERS)
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import std;
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#elif defined(MSVC_EXPERIMENTAL_STD_MODULE) && !defined(TEST_HEADERS)
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import std.core;
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#else
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#include <string>
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#include <iostream>
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#endif
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#ifdef TEST_HEADERS
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#include <boost/regex.hpp>
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#else
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import boost.regex;
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#endif
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bool validate_card_format(const std::string& s)
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{
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static const boost::regex e("(\\d{4}[- ]){3}\\d{4}");
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return boost::regex_match(s, e);
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}
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const boost::regex e("\\A(\\d{3,4})[- ]?(\\d{4})[- ]?(\\d{4})[- ]?(\\d{4})\\z");
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const std::string machine_format("\\1\\2\\3\\4");
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const std::string human_format("\\1-\\2-\\3-\\4");
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std::string machine_readable_card_number(const std::string& s)
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{
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return boost::regex_replace(s, e, machine_format, boost::match_default | boost::format_sed);
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}
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std::string human_readable_card_number(const std::string& s)
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{
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return boost::regex_replace(s, e, human_format, boost::match_default | boost::format_sed);
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}
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int main()
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{
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using namespace std;
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string s[4] = { "0000111122223333", "0000 1111 2222 3333",
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"0000-1111-2222-3333", "000-1111-2222-3333", };
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int i;
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for(i = 0; i < 4; ++i)
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{
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cout << "validate_card_format(\"" << s[i] << "\") returned " << validate_card_format(s[i]) << endl;
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}
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for(i = 0; i < 4; ++i)
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{
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cout << "machine_readable_card_number(\"" << s[i] << "\") returned " << machine_readable_card_number(s[i]) << endl;
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}
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for(i = 0; i < 4; ++i)
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{
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cout << "human_readable_card_number(\"" << s[i] << "\") returned " << human_readable_card_number(s[i]) << endl;
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}
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return 0;
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}
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