spirit/test/qi/utree1.cpp

198 lines
6.8 KiB
C++

// Copyright (c) 2001-2011 Hartmut Kaiser
// Copyright (c) 2001-2011 Joel de Guzman
// Copyright (c) 2010 Bryce Lelbach
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#include <boost/config/warning_disable.hpp>
#include <boost/detail/lightweight_test.hpp>
#include <boost/mpl/print.hpp>
#include <boost/spirit/include/qi.hpp>
#include <boost/spirit/include/support_utree.hpp>
#include <sstream>
#include "test.hpp"
inline bool check(boost::spirit::utree const& val, std::string expected)
{
std::stringstream s;
s << val;
if (s.str() == expected + " ")
return true;
std::cerr << "got result: " << s.str()
<< ", expected: " << expected << std::endl;
return false;
}
int main()
{
using spirit_test::test_attr;
using boost::spirit::utree;
using boost::spirit::utree_type;
using boost::spirit::utf8_string_range_type;
using boost::spirit::utf8_symbol_type;
using boost::spirit::utf8_string_type;
using boost::spirit::qi::real_parser;
using boost::spirit::qi::strict_real_policies;
using boost::spirit::qi::digit;
using boost::spirit::qi::char_;
using boost::spirit::qi::string;
using boost::spirit::qi::int_;
using boost::spirit::qi::double_;
using boost::spirit::qi::space;
using boost::spirit::qi::space_type;
using boost::spirit::qi::rule;
using boost::spirit::qi::as;
using boost::spirit::qi::lexeme;
// primitive data types
{
utree ut;
BOOST_TEST(test_attr("x", char_, ut) &&
ut.which() == utree_type::string_type && check(ut, "\"x\""));
ut.clear();
BOOST_TEST(test_attr("123", int_, ut) &&
ut.which() == utree_type::int_type && check(ut, "123"));
ut.clear();
BOOST_TEST(test_attr("123.45", double_, ut) &&
ut.which() == utree_type::double_type && check(ut, "123.45"));
ut.clear();
rule<char const*, utf8_string_type()> r1 = lexeme[*char_];
BOOST_TEST(test_attr("foo", r1, ut) &&
ut.which() == utree_type::string_type && check(ut, "\"foo\""));
ut.clear();
rule<char const*, utf8_symbol_type()> r2 = lexeme[*char_];
BOOST_TEST(test_attr("xyz", r2, ut) &&
ut.which() == utree_type::symbol_type && check(ut, "xyz"));
}
// single character parsers
{
utree ut;
// this rule returns a utree string
rule<char const*, utree()> r1 = char_("abc");
// this rule forces a utree list to be returned
rule<char const*, utree::list_type()> r2 = char_("abc");
BOOST_TEST(test_attr("a", r1, ut) &&
ut.which() == utree_type::string_type && check(ut, "\"a\""));
ut.clear();
BOOST_TEST(test_attr("a", r2, ut) &&
ut.which() == utree_type::list_type && check(ut, "( \"a\" )"));
}
// sequences
{
using boost::spirit::qi::as_string;
utree ut;
BOOST_TEST(test_attr("xy", char_ >> char_, ut) &&
ut.which() == utree_type::list_type && check(ut, "( \"x\" \"y\" )"));
ut.clear();
BOOST_TEST(test_attr("123 456", int_ >> int_, ut, space) &&
ut.which() == utree_type::list_type && check(ut, "( 123 456 )"));
ut.clear();
BOOST_TEST(test_attr("1.23 4.56", double_ >> double_, ut, space) &&
ut.which() == utree_type::list_type && check(ut, "( 1.23 4.56 )"));
ut.clear();
BOOST_TEST(test_attr("1.2ab", double_ >> *char_, ut) &&
ut.which() == utree_type::list_type && check(ut, "( 1.2 \"a\" \"b\" )"));
ut.clear();
BOOST_TEST(test_attr("ab1.2", *~digit >> double_, ut) &&
ut.which() == utree_type::list_type && check(ut, "( \"a\" \"b\" 1.2 )"));
// forces a utree list
rule<char const*, utree::list_type()> r1 = double_;
ut.clear();
BOOST_TEST(test_attr("1.2ab", r1 >> *char_, ut) &&
ut.which() == utree_type::list_type && check(ut, "( ( 1.2 ) \"a\" \"b\" )"));
ut.clear();
BOOST_TEST(test_attr("ab1.2", *~digit >> r1, ut) &&
ut.which() == utree_type::list_type && check(ut, "( \"a\" \"b\" ( 1.2 ) )"));
ut.clear();
// implicitly a utree list, because of sequence attribute rules
rule<char const*, utree()> r2 = int_ >> char_("!") >> double_;
BOOST_TEST(test_attr("17!3.14", r2, ut) &&
ut.which() == utree_type::list_type && check(ut, "( 17 \"!\" 3.14 )"));
ut.clear();
rule<char const*, utree()> r3 = double_ >> as_string[string("foo")] >> int_;
BOOST_TEST(test_attr("0.5foo5", r3, ut) &&
ut.which() == utree_type::list_type && check(ut, "( 0.5 \"foo\" 5 )"));
}
{
utree ut;
rule<char const*, utree()> r1 = char_;
rule<char const*, utree::list_type()> r2 = double_;
rule<char const*, utree::list_type()> r3 = char_;
BOOST_TEST(test_attr("a25.5b", r1 >> r2 >> r3, ut));
BOOST_TEST(ut.which() == utree_type::list_type);
BOOST_TEST(check(ut, "( \"a\" ( 25.5 ) ( \"b\" ) )"));
ut.clear();
BOOST_TEST(test_attr("a25.5b", r3 >> r2 >> r1, ut));
BOOST_TEST(ut.which() == utree_type::list_type);
BOOST_TEST(check(ut, "( ( \"a\" ) ( 25.5 ) \"b\" )"));
ut.clear();
BOOST_TEST(test_attr("a25.5b", char_ >> r2 >> r3, ut));
BOOST_TEST(ut.which() == utree_type::list_type);
BOOST_TEST(check(ut, "( \"a\" ( 25.5 ) ( \"b\" ) )"));
ut.clear();
BOOST_TEST(test_attr("a25.5b", r3 >> r2 >> char_, ut));
BOOST_TEST(ut.which() == utree_type::list_type);
BOOST_TEST(check(ut, "( ( \"a\" ) ( 25.5 ) \"b\" )"));
ut.clear();
#if defined(BOOST_CLANG)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Woverloaded-shift-op-parentheses"
#endif
BOOST_TEST(test_attr("a25.5b", r1 > r2 >> r3, ut));
BOOST_TEST(ut.which() == utree_type::list_type);
BOOST_TEST(check(ut, "( \"a\" ( 25.5 ) ( \"b\" ) )"));
ut.clear();
BOOST_TEST(test_attr("a25.5b", r3 >> r2 > r1, ut));
BOOST_TEST(ut.which() == utree_type::list_type);
BOOST_TEST(check(ut, "( ( \"a\" ) ( 25.5 ) \"b\" )"));
ut.clear();
BOOST_TEST(test_attr("a25.5b", char_ > r2 >> r3, ut));
BOOST_TEST(ut.which() == utree_type::list_type);
BOOST_TEST(check(ut, "( \"a\" ( 25.5 ) ( \"b\" ) )"));
ut.clear();
BOOST_TEST(test_attr("a25.5b", r3 >> r2 > char_, ut));
BOOST_TEST(ut.which() == utree_type::list_type);
BOOST_TEST(check(ut, "( ( \"a\" ) ( 25.5 ) \"b\" )"));
#if defined(BOOST_CLANG)
#pragma clang diagnostic pop
#endif
}
return boost::report_errors();
}