1 /*============================================================================= 2 Copyright (c) 2001-2014 Joel de Guzman 3 4 Distributed under the Boost Software License, Version 1.0. (See accompanying 5 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) 6 =============================================================================*/ 7 #if !defined(BOOST_SPIRIT_X3_CALC9_ERROR_HANDLER_HPP) 8 #define BOOST_SPIRIT_X3_CALC9_ERROR_HANDLER_HPP 9 10 #include <boost/spirit/home/x3.hpp> 11 #include <boost/spirit/home/x3/support/utility/error_reporting.hpp> 12 #include <boost/spirit/home/x3/support/ast/position_tagged.hpp> 13 #include "expression.hpp" 14 #include "statement.hpp" 15 16 namespace client { namespace parser 17 { 18 namespace x3 = boost::spirit::x3; 19 20 //////////////////////////////////////////////////////////////////////////// 21 // Our error handler 22 //////////////////////////////////////////////////////////////////////////// 23 template <typename Iterator> 24 using error_handler = x3::error_handler<Iterator>; 25 26 // tag used to get our error handler from the context 27 using error_handler_tag = x3::error_handler_tag; 28 29 struct error_handler_base 30 { 31 template <typename Iterator, typename Exception, typename Context> on_errorclient::parser::error_handler_base32 x3::error_handler_result on_error( 33 Iterator& first, Iterator const& last 34 , Exception const& x, Context const& context) 35 { 36 std::string message = "Error! Expecting: " + x.which() + " here:"; 37 auto& error_handler = x3::get<error_handler_tag>(context).get(); 38 error_handler(x.where(), message); 39 return x3::error_handler_result::fail; 40 } 41 }; 42 }} 43 44 #endif 45