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* Migrate to Catch2 * Enable colors in Catch2 * CI: Cache Catch2 * Remove unused variable * Supply compiler flags to `Catch2WithMain` * CI: Fix Catch2 cache * Fix styling
98 lines
2.5 KiB
C++
98 lines
2.5 KiB
C++
/*=============================================================================
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Copyright (c) 2013 Carl Barron
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Copyright (c) 2015 Joel de Guzman
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Copyright (c) 2025 Nana Sakisaka
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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#define BOOST_SPIRIT_X4_DEBUG
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#define BOOST_SPIRIT_X4_UNICODE
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#include "test.hpp"
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#include <boost/spirit/x4/symbols.hpp>
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#include <boost/spirit/x4/char_encoding/unicode.hpp>
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#include <boost/spirit/x4/operator/optional.hpp>
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#include <boost/spirit/x4/operator/sequence.hpp>
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#include <boost/fusion/include/at.hpp>
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#include <boost/fusion/include/vector.hpp>
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#include <boost/fusion/include/adapt_struct.hpp>
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#include <optional>
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#include <numeric>
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struct roman
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{
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std::optional<int> a;
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std::optional<int> b;
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std::optional<int> c;
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};
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BOOST_FUSION_ADAPT_STRUCT(roman,
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a, b, c
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)
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namespace {
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int eval(roman const & c)
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{
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return c.a.value_or(0) + c.b.value_or(0) + c.c.value_or(0);
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}
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} // anonymous
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TEST_CASE("symbols3")
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{
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using x4::shared_symbols;
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{
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// construction from initializer-list
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shared_symbols<int> const ones = {
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{"I", 1}, {"II", 2}, {"III", 3}, {"IV", 4},
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{"V", 5}, {"VI", 6}, {"VII", 7}, {"VIII", 8},
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{"IX", 9}
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};
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shared_symbols<int> const tens = {
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{"X", 10}, {"XX", 20}, {"XXX", 30}, {"XL", 40},
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{"L", 50}, {"LX", 60}, {"LXX", 70}, {"LXXX", 80},
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{"XC", 90}
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};
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shared_symbols<int> const hundreds {
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{"C", 100}, {"CC", 200}, {"CCC", 300}, {"CD", 400},
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{"D", 500}, {"DC", 600}, {"DCC", 700}, {"DCCC", 800},
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{"CM", 900}
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};
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auto number = -hundreds >> -tens >> -ones;
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roman r;
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REQUIRE(parse("CDXLII", number, r));
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CHECK(eval(r) == 442);
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}
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{
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// construction from initializer-list without attribute
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shared_symbols<> foo = {"a1", "a2", "a3"};
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CHECK(parse("a3", foo));
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}
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{
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// assignment from initializer-list
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shared_symbols<> foo;
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foo = {"a1", "a2", "a3"};
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CHECK(parse("a3", foo));
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}
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{
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// unicode | construction from initializer-list
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x4::shared_symbols_parser<x4::char_encoding::unicode, int> foo = {{U"a1", 1}, {U"a2", 2}, {U"a3", 3}};
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int r = 0;
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REQUIRE(parse(U"a3", foo, r));
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CHECK(r == 3);
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}
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}
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