parser_names.ipp

C++的一个好库。。。现在很流行

/*=============================================================================
    Copyright (c) 2001-2003 Joel de Guzman
    Copyright (c) 2002-2003 Hartmut Kaiser
    http://spirit.sourceforge.net/

    Use, modification and distribution is subject to 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)
=============================================================================*/
#if !defined(BOOST_SPIRIT_PARSER_NAMES_IPP)
#define BOOST_SPIRIT_PARSER_NAMES_IPP

#if defined(BOOST_SPIRIT_DEBUG)

#include <string>
#include <iostream>
#include <map>

#include <boost/config.hpp>
#ifdef BOOST_NO_STRINGSTREAM
#include <strstream>
#define BOOST_SPIRIT_SSTREAM std::strstream
std::string BOOST_SPIRIT_GETSTRING(std::strstream& ss)
{
    ss << ends;
    std::string rval = ss.str();
    ss.freeze(false);
    return rval;
}
#else
#include <sstream>
#define BOOST_SPIRIT_GETSTRING(ss) ss.str()
#define BOOST_SPIRIT_SSTREAM std::stringstream
#endif

namespace boost { namespace spirit {

///////////////////////////////////////////////////////////////////////////////
//  from actions.hpp
    template <typename ParserT, typename ActionT>
    inline std::string
    parser_name(action<ParserT, ActionT> const& p)
    {
        return std::string("action")
            + std::string("[")
            + parser_name(p.subject())
            + std::string("]");
    }

///////////////////////////////////////////////////////////////////////////////
//  from directives.hpp
    template <typename ParserT>
    inline std::string
    parser_name(contiguous<ParserT> const& p)
    {
        return std::string("contiguous")
            + std::string("[")
            + parser_name(p.subject())
            + std::string("]");
    }

    template <typename ParserT>
    inline std::string
    parser_name(inhibit_case<ParserT> const& p)
    {
        return std::string("inhibit_case")
            + std::string("[")
            + parser_name(p.subject())
            + std::string("]");
    }

    template <typename A, typename B>
    inline std::string
    parser_name(longest_alternative<A, B> const& p)
    {
        return std::string("longest_alternative")
            + std::string("[")
            + parser_name(p.left()) + std::string(", ") + parser_name(p.right())
            + std::string("]");
    }

    template <typename A, typename B>
    inline std::string
    parser_name(shortest_alternative<A, B> const& p)
    {
        return std::string("shortest_alternative")
            + std::string("[")
            + parser_name(p.left()) + std::string(", ") + parser_name(p.right())
            + std::string("]");
    }

///////////////////////////////////////////////////////////////////////////////
//  from numerics.hpp
    template <typename T, int Radix, unsigned MinDigits, int MaxDigits>
    inline std::string
    parser_name(uint_parser<T, Radix, MinDigits, MaxDigits> const& p)
    {
        BOOST_SPIRIT_SSTREAM stream;
        stream << Radix << ", " << MinDigits << ", " << MaxDigits;
        return std::string("uint_parser<")
            + BOOST_SPIRIT_GETSTRING(stream)
            + std::string(">");
    }

    template <typename T, int Radix, unsigned MinDigits, int MaxDigits>
    inline std::string
    parser_name(int_parser<T, Radix, MinDigits, MaxDigits> const& p)
    {
        BOOST_SPIRIT_SSTREAM stream;
        stream << Radix << ", " << MinDigits << ", " << MaxDigits;
        return std::string("int_parser<")
            + BOOST_SPIRIT_GETSTRING(stream)
            + std::string(">");
    }

    template <typename T, typename RealPoliciesT>
    inline std::string
    parser_name(real_parser<T, RealPoliciesT> const& p)
    {
        return std::string("real_parser");
    }

///////////////////////////////////////////////////////////////////////////////
//  from operators.hpp
    template <typename A, typename B>
    inline std::string
    parser_name(sequence<A, B> const& p)
    {
        return std::string("sequence")
            + std::string("[")
            + parser_name(p.left()) + std::string(", ") + parser_name(p.right())
            + std::string("]");
    }

    template <typename A, typename B>
    inline std::string
    parser_name(sequential_or<A, B> const& p)
    {
        return std::string("sequential_or")
            + std::string("[")
            + parser_name(p.left()) + std::string(", ") + parser_name(p.right())
            + std::string("]");
    }

    template <typename A, typename B>
    inline std::string
    parser_name(alternative<A, B> const& p)
    {
        return std::string("alternative")
            + std::string("[")
            + parser_name(p.left()) + std::string(", ") + parser_name(p.right())
            + std::string("]");
    }

    template <typename A, typename B>
    inline std::string
    parser_name(intersection<A, B> const& p)
    {
        return std::string("intersection")
            + std::string("[")
            + parser_name(p.left()) + std::string(", ") + parser_name(p.right())
            + std::string("]");
    }

    template <typename A, typename B>
    inline std::string
    parser_name(difference<A, B> const& p)
    {
        return std::string("difference")
            + std::string("[")
            + parser_name(p.left()) + std::string(", ") + parser_name(p.right())
            + std::string("]");
    }

    template <typename A, typename B>
    inline std::string
    parser_name(exclusive_or<A, B> const& p)
    {
        return std::string("exclusive_or")
            + std::string("[")
            + parser_name(p.left()) + std::string(", ") + parser_name(p.right())
            + std::string("]");
    }

    template <typename S>
    inline std::string
    parser_name(optional<S> const& p)
    {
        return std::string("optional")
            + std::string("[")
            + parser_name(p.subject())
            + std::string("]");
    }

    template <typename S>
    inline std::string
    parser_name(kleene_star<S> const& p)
    {
        return std::string("kleene_star")
            + std::string("[")
            + parser_name(p.subject())
            + std::string("]");
    }

    template <typename S>
    inline std::string
    parser_name(positive<S> const& p)
    {
        return std::string("positive")
            + std::string("[")
            + parser_name(p.subject())
            + std::string("]");
    }

///////////////////////////////////////////////////////////////////////////////
//  from parser.hpp
    template <typename DerivedT>
    inline std::string
    parser_name(parser<DerivedT> const& p)
    {
        return std::string("parser");
    }

///////////////////////////////////////////////////////////////////////////////
//  from primitives.hpp
    template <typename DerivedT>
    inline std::string
    parser_name(char_parser<DerivedT> const &p)
    {
        return std::string("char_parser");
    }

    template <typename CharT>
    inline std::string
    parser_name(chlit<CharT> const &p)
    {
        return std::string("chlit(\'")
            + std::string(1, p.ch)
            + std::string("\')");
    }

    template <typename CharT>
    inline std::string
    parser_name(range<CharT> const &p)
    {
        return std::string("range(")
            + std::string(1, p.first) + std::string(", ") + std::string(1, p.last)
            + std::string(")");
    }

    template <typename IteratorT>
    inline std::string
    parser_name(chseq<IteratorT> const &p)
    {
        return std::string("chseq(\"")
            + std::string(p.first, p.last)
            + std::string("\")");
    }

    template <typename IteratorT>
    inline std::string
    parser_name(strlit<IteratorT> const &p)
    {
        return std::string("strlit(\"")
            + std::string(p.seq.first, p.seq.last)
            + std::string("\")");
    }

    inline std::string
    parser_name(nothing_parser const&)
    {
        return std::string("nothing");
    }

    inline std::string
    parser_name(epsilon_parser const&)