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// Copyright (c) 2001-2010 Hartmut Kaiser
//
// 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/detail/lightweight_test.hpp>
#include <boost/spirit/include/lex_lexertl.hpp>
#include <string>
#include "test.hpp"
///////////////////////////////////////////////////////////////////////////////
// a simple lexer class
template <typename Lexer>
struct lexertl_test
: boost::spirit::lex::lexer<Lexer>
{
typedef boost::spirit::lex::token_def<std::string> token_def;
static std::size_t const CCOMMENT = 1;
static std::size_t const CPPCOMMENT = 2;
lexertl_test()
: c_comment("\\/\\*[^*]*\\*+([^/*][^*]*\\*+)*\\/", CCOMMENT)
, cpp_comment("\\/\\/[^\\n\\r]*(\\n|\\r|\\r\\n)", CPPCOMMENT)
{
this->self = c_comment;
this->self += cpp_comment;
}
token_def c_comment, cpp_comment;
};
template <typename Lexer>
struct wlexertl_test
: boost::spirit::lex::lexer<Lexer>
{
typedef boost::spirit::lex::token_def<std::basic_string<wchar_t>, wchar_t>
token_def;
static std::size_t const CCOMMENT = 1;
static std::size_t const CPPCOMMENT = 2;
wlexertl_test()
: c_comment(L"\\/\\*[^*]*\\*+([^/*][^*]*\\*+)*\\/", CCOMMENT)
, cpp_comment(L"\\/\\/[^\\n\\r]*(\\n|\\r|\\r\\n)", CPPCOMMENT)
{
this->self = c_comment;
this->self += cpp_comment;
}
token_def c_comment, cpp_comment;
};
///////////////////////////////////////////////////////////////////////////////
int main()
{
using namespace boost::spirit;
using namespace spirit_test;
// the following test aims at the low level lexer_ and token_ objects,
// normally not visible/used by the user
{
// initialize lexer
typedef std::string::iterator base_iterator_type;
typedef lex::lexertl::token<base_iterator_type> token_type;
typedef lex::lexertl::lexer<token_type> lexer_type;
typedef lexertl_test<lexer_type> lexer_def;
// test lexer for two different input strings
lexer_def lex;
BOOST_TEST(test (lex, "/* this is a comment */", lexer_def::CCOMMENT));
BOOST_TEST(test (lex, "// this is a comment as well\n", lexer_def::CPPCOMMENT));
}
{
// initialize lexer
typedef std::basic_string<wchar_t>::iterator base_iterator_type;
typedef lex::lexertl::token<base_iterator_type> token_type;
typedef lex::lexertl::lexer<token_type> lexer_type;
typedef wlexertl_test<lexer_type> lexer_def;
// test lexer for two different input strings
lexer_def lex;
BOOST_TEST(test (lex, L"/* this is a comment */", lexer_def::CCOMMENT));
BOOST_TEST(test (lex, L"// this is a comment as well\n", lexer_def::CPPCOMMENT));
}
return boost::report_errors();
}