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// Copyright (c) 2001-2011 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/config/warning_disable.hpp>
#include <boost/spirit/include/lex_lexertl.hpp>
namespace lex = boost::spirit::lex;
typedef lex::lexertl::token<std::string::iterator> token_type;
typedef lex::lexertl::actor_lexer<token_type> lexer_type;
///////////////////////////////////////////////////////////////////////////////
static bool found_identifier_flag = false;
///////////////////////////////////////////////////////////////////////////////
void found_identifier_sa0()
{
found_identifier_flag = true;
}
template <typename Lexer>
struct lexer_sa0 : lex::lexer<Lexer>
{
lexer_sa0()
{
identifier = "[a-zA-Z][_a-zA-Z0-9]*";
this->self += identifier [&found_identifier_sa0];
}
lex::token_def<> identifier;
};
///////////////////////////////////////////////////////////////////////////////
static std::string found_identifier_str;
void found_identifier_sa2(std::string::iterator& start
, std::string::iterator& end)
{
found_identifier_flag = true;
found_identifier_str = std::string(start, end);
}
template <typename Lexer>
struct lexer_sa2 : lex::lexer<Lexer>
{
lexer_sa2()
{
identifier = "[a-zA-Z][_a-zA-Z0-9]*";
this->self += identifier [&found_identifier_sa2];
}
lex::token_def<> identifier;
};
///////////////////////////////////////////////////////////////////////////////
void found_identifier_sa3_normal(std::string::iterator& start
, std::string::iterator& end, BOOST_SCOPED_ENUM(lex::pass_flags)& pass)
{
BOOST_TEST(pass == lex::pass_flags::pass_normal);
found_identifier_flag = true;
found_identifier_str = std::string(start, end);
}
template <typename Lexer>
struct lexer_sa3_normal : lex::lexer<Lexer>
{
lexer_sa3_normal()
{
identifier = "[a-zA-Z][_a-zA-Z0-9]*";
this->self += identifier [&found_identifier_sa3_normal];
}
lex::token_def<> identifier;
};
void found_identifier_sa3_fail(std::string::iterator&, std::string::iterator&
, BOOST_SCOPED_ENUM(lex::pass_flags)& pass)
{
pass = lex::pass_flags::pass_fail;
}
template <typename Lexer>
struct lexer_sa3_fail : lex::lexer<Lexer>
{
lexer_sa3_fail()
{
identifier = "[a-zA-Z][_a-zA-Z0-9]*";
this->self += identifier [&found_identifier_sa3_fail];
}
lex::token_def<> identifier;
};
void found_identifier_sa3_ignore(std::string::iterator&, std::string::iterator&
, BOOST_SCOPED_ENUM(lex::pass_flags)& pass)
{
pass = lex::pass_flags::pass_ignore;
}
template <typename Lexer>
struct lexer_sa3_ignore : lex::lexer<Lexer>
{
lexer_sa3_ignore()
{
identifier = "[a-zA-Z][_a-zA-Z0-9]*";
this->self += identifier [&found_identifier_sa3_ignore];
}
lex::token_def<> identifier;
};
///////////////////////////////////////////////////////////////////////////////
static std::size_t found_identifier_id = 0;
void found_identifier_sa4(std::string::iterator& start
, std::string::iterator& end, BOOST_SCOPED_ENUM(lex::pass_flags)& pass
, std::size_t id)
{
BOOST_TEST(pass == lex::pass_flags::pass_normal);
found_identifier_flag = true;
found_identifier_str = std::string(start, end);
found_identifier_id = id;
}
template <typename Lexer>
struct lexer_sa4 : lex::lexer<Lexer>
{
lexer_sa4()
{
identifier = "[a-zA-Z][_a-zA-Z0-9]*";
this->self += identifier [&found_identifier_sa4];
}
lex::token_def<> identifier;
};
void found_identifier_sa4_id(std::string::iterator& start
, std::string::iterator& end, BOOST_SCOPED_ENUM(lex::pass_flags)& pass
, std::size_t& id)
{
BOOST_TEST(pass == lex::pass_flags::pass_normal);
found_identifier_flag = true;
found_identifier_str = std::string(start, end);
found_identifier_id = id;
id = 1;
}
template <typename Lexer>
struct lexer_sa4_id : lex::lexer<Lexer>
{
lexer_sa4_id()
{
identifier = "[a-zA-Z][_a-zA-Z0-9]*";
this->self += identifier [&found_identifier_sa4_id];
}
lex::token_def<> identifier;
};
static std::size_t found_identifier_id2 = 0;
bool identifier_token(token_type const& t)
{
found_identifier_id2 = t.id();
return true;
}
///////////////////////////////////////////////////////////////////////////////
struct found_identifier_sa5
{
template <typename Context>
void operator()(std::string::iterator& /*start*/
, std::string::iterator& /*end*/, BOOST_SCOPED_ENUM(lex::pass_flags)& pass
, std::size_t& /*id*/, Context& ctx)
{
BOOST_TEST(pass == lex::pass_flags::pass_normal);
found_identifier_flag = true;
found_identifier_str = std::string(ctx.get_value().begin(), ctx.get_value().end());
}
};
template <typename Lexer>
struct lexer_sa5 : lex::lexer<Lexer>
{
lexer_sa5()
{
identifier = "[a-zA-Z][_a-zA-Z0-9]*";
this->self += identifier [found_identifier_sa5()];
}
lex::token_def<> identifier;
};
///////////////////////////////////////////////////////////////////////////////
int main()
{
std::string identifier ("id_1234");
std::string::iterator first = identifier.begin();
std::string::iterator last = identifier.end();
// test semantic action taking no arguments
found_identifier_flag = false;
{
lexer_sa0<lexer_type> sa0;
BOOST_TEST(lex::tokenize(first, last, sa0));
BOOST_TEST(first == last);
BOOST_TEST(found_identifier_flag);
}
// test semantic action taking two arguments (iterator pair for matched
// sequence)
found_identifier_flag = false;
found_identifier_str.clear();
first = identifier.begin();
{
lexer_sa2<lexer_type> sa2;
BOOST_TEST(lex::tokenize(first, last, sa2));
BOOST_TEST(first == last);
BOOST_TEST(found_identifier_flag);
BOOST_TEST(found_identifier_str == identifier);
}
// test semantic action taking three arguments (iterator pair for matched
// sequence and pass_flags) - pass_flags::pass_normal
found_identifier_flag = false;
found_identifier_str.clear();
first = identifier.begin();
{
lexer_sa3_normal<lexer_type> sa3;
BOOST_TEST(lex::tokenize(first, last, sa3));
BOOST_TEST(first == last);
BOOST_TEST(found_identifier_flag);
BOOST_TEST(found_identifier_str == identifier);
}
// test semantic action taking three arguments (iterator pair for matched
// sequence and pass_flags) - pass_flags::pass_fail
first = identifier.begin();
{
lexer_sa3_fail<lexer_type> sa3;
BOOST_TEST(!lex::tokenize(first, last, sa3));
BOOST_TEST(first != last);
}
// test semantic action taking three arguments (iterator pair for matched
// sequence and pass_flags) - pass_flags::pass_ignore
first = identifier.begin();
{
lexer_sa3_ignore<lexer_type> sa3;
BOOST_TEST(lex::tokenize(first, last, sa3));
BOOST_TEST(first == last);
}
// test semantic action taking four arguments (iterator pair for matched
// sequence and pass_flags, and token id)
found_identifier_flag = false;
found_identifier_str.clear();
first = identifier.begin();
found_identifier_id = 0;
{
lexer_sa4<lexer_type> sa4;
BOOST_TEST(lex::tokenize(first, last, sa4));
BOOST_TEST(first == last);
BOOST_TEST(found_identifier_flag);
BOOST_TEST(found_identifier_str == identifier);
BOOST_TEST(found_identifier_id == lex::min_token_id);
}
found_identifier_flag = false;
found_identifier_str.clear();
first = identifier.begin();
found_identifier_id = 0;
found_identifier_id2 = 0;
{
lexer_sa4_id<lexer_type> sa4;
BOOST_TEST(lex::tokenize(first, last, sa4, identifier_token));
BOOST_TEST(first == last);
BOOST_TEST(found_identifier_flag);
BOOST_TEST(found_identifier_str == identifier);
BOOST_TEST(found_identifier_id == lex::min_token_id);
BOOST_TEST(found_identifier_id2 == 1);
}
// test semantic action taking four arguments (iterator pair for matched
// sequence and pass_flags, token id, and context)
found_identifier_flag = false;
found_identifier_str.clear();
first = identifier.begin();
found_identifier_id = 0;
found_identifier_id2 = 0;
{
lexer_sa5<lexer_type> sa5;
BOOST_TEST(lex::tokenize(first, last, sa5));
BOOST_TEST(first == last);
BOOST_TEST(found_identifier_flag);
BOOST_TEST(found_identifier_str == identifier);
}
return boost::report_errors();
}
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