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Alexander Afanasyev77f6ae12018-06-14 17:54:17 -04001/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2/*
3 * Copyright (c) 2013-2018 Regents of the University of California.
4 *
5 * This file is part of ndn-cxx library (NDN C++ library with eXperimental eXtensions).
6 *
7 * ndn-cxx library is free software: you can redistribute it and/or modify it under the
8 * terms of the GNU Lesser General Public License as published by the Free Software
9 * Foundation, either version 3 of the License, or (at your option) any later version.
10 *
11 * ndn-cxx library is distributed in the hope that it will be useful, but WITHOUT ANY
12 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
13 * PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.
14 *
15 * You should have received copies of the GNU General Public License and GNU Lesser
16 * General Public License along with ndn-cxx, e.g., in COPYING.md file. If not, see
17 * <http://www.gnu.org/licenses/>.
18 *
19 * See AUTHORS.md for complete list of ndn-cxx authors and contributors.
20 */
21
22#ifndef NAC_TESTS_BLOCK_LITERAL_HPP
23#define NAC_TESTS_BLOCK_LITERAL_HPP
24
25#include <ndn-cxx/encoding/block.hpp>
26#include <ndn-cxx/encoding/buffer-stream.hpp>
27#include <ndn-cxx/security/transform.hpp>
28
29namespace ndn {
30namespace nac {
31namespace tests {
32
33/** \brief Construct a \c Block from hexadecimal \p input.
34 * \param input a string containing hexadecimal bytes and comments.
35 * 0-9 and upper-case A-F are input; all other characters are comments.
36 * \param len length of \p input.
37 * \throw security::transform::Error input has odd number of hexadecimal digits.
38 * \throw tlv::Error input cannot be parsed into valid \c Block.
39 *
40 * Example
41 * \code
42 * Block nameBlock = "0706 080141 080142"_block;
43 * Block nackBlock = "FD032005 reason(no-route)=FD03210196"_block;
44 * \endcode
45 */
46inline Block
47operator "" _block(const char* input, std::size_t len)
48{
49 namespace t = ndn::security::transform;
50 t::StepSource ss;
51 OBufferStream os;
52 ss >> t::hexDecode() >> t::streamSink(os);
53
54 for (const char* end = input + len; input != end; ++input) {
55 if (std::strchr("0123456789ABCDEF", *input) != nullptr) {
56 ss.write(reinterpret_cast<const uint8_t*>(input), 1);
57 }
58 }
59 ss.end();
60
61 return Block(os.buf());
62}
63
64} // namespace tests
65} // namespace nac
66} // namespace ndn
67
68#endif // NAC_TESTS_BLOCK_LITERAL_HPP