ChaiScript/langkit/langkit_parser.hpp
2009-05-26 22:39:55 +00:00

29 lines
918 B
C++

// This file is distributed under the BSD License.
// See LICENSE.TXT for details.
#ifndef LANGKIT_PARSER_HPP_
#define LANGKIT_PARSER_HPP_
#include <boost/function.hpp>
#include "langkit_lexer.hpp"
typedef std::vector<Token>::iterator Token_Iterator;
struct Rule {
int identifier;
boost::function<std::pair<Token_Iterator, Token>(Token_Iterator iter, Token_Iterator end)> rule;
std::pair<Token_Iterator, Token> operator()(Token_Iterator iter, Token_Iterator end);
Rule() : identifier(-1) {}
Rule(int id) : identifier(id) {}
};
std::pair<Token_Iterator, Token> String_Rule(Token_Iterator iter, Token_Iterator end, const std::string &val);
std::pair<Token_Iterator, Token> Type_Rule(Token_Iterator iter, Token_Iterator end, const int val);
std::pair<Token_Iterator, Token> Or_Rule(Token_Iterator iter, Token_Iterator end, const Rule &lhs, const Rule &rhs);
#endif /* LANGKIT_PARSER_HPP_ */