1/*=============================================================================
2 Copyright (c) 2001-2017 Joel de Guzman
3 Copyright (c) 2017 think-cell GmbH
4
5 Distributed under the Boost Software License, Version 1.0. (See accompanying
6 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
7=============================================================================*/
8#include <boost/spirit/home/x3.hpp>
9
10#include <boost/core/lightweight_test.hpp>
11#include <boost/range/adaptor/transformed.hpp>
12
13#include <iostream>
14#include <string>
15#include <functional>
16
17int main()
18{
19 using boost::adaptors::transform;
20 using boost::spirit::x3::raw;
21 using boost::spirit::x3::eps;
22 using boost::spirit::x3::eoi;
23 using boost::spirit::x3::upper;
24 using boost::spirit::x3::repeat;
25 using boost::spirit::x3::parse;
26
27 std::string input = "abcde";
28 std::function<char(char)> func = [](char c) {
29 return c < 'a' || 'z' < c ? c : static_cast<char>(c - 'a' + 'A');
30 };
31 auto const rng = transform(rng&: input, fn: func);
32
33 {
34 std::string str;
35 BOOST_TEST((parse(boost::begin(rng), boost::end(rng), +upper >> eoi, str)));
36 BOOST_TEST(("ABCDE"==str));
37 }
38
39 {
40 boost::iterator_range<decltype(boost::begin(r: rng))> str;
41 BOOST_TEST((parse(boost::begin(rng), boost::end(rng), raw[+upper >> eoi], str)));
42 BOOST_TEST((boost::equal(std::string("ABCDE"), str)));
43 }
44
45 {
46 BOOST_TEST((parse(boost::begin(rng), boost::end(rng), (repeat(6)[upper] | repeat(5)[upper]) >> eoi)));
47 }
48
49 return boost::report_errors();
50}
51

source code of boost/libs/spirit/test/x3/iterator_check.cpp