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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
43 lines
1.4 KiB
C++
43 lines
1.4 KiB
C++
/*=============================================================================
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Copyright (c) 2001-2015 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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#include "test.hpp"
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#include <boost/spirit/x4/rule.hpp>
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#include <boost/spirit/x4/char/char_class.hpp>
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#include <boost/spirit/x4/char/char.hpp>
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#include <boost/spirit/x4/directive/lexeme.hpp>
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#include <boost/spirit/x4/operator/plus.hpp>
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TEST_CASE("lexeme")
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{
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using x4::standard::space;
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using x4::standard::digit;
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using x4::lexeme;
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using x4::rule;
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BOOST_SPIRIT_X4_ASSERT_CONSTEXPR_CTORS(lexeme['x']);
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CHECK(parse(" 1 2 3 4 5", +digit, space));
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CHECK(!parse(" 1 2 3 4 5", lexeme[+digit], space));
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CHECK(parse(" 12345", lexeme[+digit], space));
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CHECK(parse(" 12345 ", lexeme[+digit], space));
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// lexeme collapsing
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CHECK(!parse(" 1 2 3 4 5", lexeme[lexeme[+digit]], space));
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CHECK(parse(" 12345", lexeme[lexeme[+digit]], space));
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CHECK(parse(" 12345 ", lexeme[lexeme[+digit]], space));
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{
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constexpr auto r = +digit;
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constexpr auto rr = lexeme[r];
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CHECK(!parse(" 1 2 3 4 5", rr, space));
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CHECK(parse(" 12345", rr, space));
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}
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}
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