mirror of
https://github.com/matrix-construct/construct
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161 lines
4.6 KiB
C++
161 lines
4.6 KiB
C++
// Matrix Construct
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//
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// Copyright (C) Matrix Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2018 Jason Volk <jason@zemos.net>
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice is present in all copies. The
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// full license for this software is available in the LICENSE file.
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#ifndef HAVE_IRCD_SPIRIT_H
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#define HAVE_IRCD_SPIRIT_H
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/// This file is not part of the IRCd standard include list (stdinc.h) because
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/// it involves extremely expensive boost headers for creating formal spirit
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/// grammars. Include this in a definition file which defines such grammars.
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///
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/// Note that directly sharing elements of a grammar between two compilation
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/// units can be achieved with forward declarations in `ircd/grammar.h`.
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// ircd.h is included here so that it can be compiled into this header. Then
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// this becomes the single leading precompiled header.
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#include <ircd/ircd.h>
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#pragma GCC visibility push(hidden)
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#include <boost/fusion/include/at.hpp>
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#include <boost/spirit/include/qi.hpp>
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#include <boost/spirit/include/karma.hpp>
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#include <boost/spirit/include/phoenix.hpp>
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#include <boost/fusion/include/std_pair.hpp>
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#include <boost/fusion/adapted/std_pair.hpp>
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#include <boost/fusion/adapted/std_tuple.hpp>
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#pragma GCC visibility pop
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namespace ircd::spirit
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{
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template<class parent_error> struct expectation_failure;
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extern thread_local char rulebuf[64]; // parse.cc
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}
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namespace ircd {
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namespace spirit
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__attribute__((visibility("hidden")))
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{
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namespace spirit = boost::spirit;
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namespace ascii = spirit::ascii;
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namespace karma = spirit::karma;
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namespace qi = spirit::qi;
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namespace phx = boost::phoenix;
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using spirit::unused_type;
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using qi::locals;
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using qi::_a;
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using qi::_r1_type;
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using qi::raw;
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using qi::omit;
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using qi::matches;
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using qi::hold;
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using qi::eoi;
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using qi::eps;
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using qi::attr;
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using qi::attr_cast;
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using qi::repeat;
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using qi::lit;
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using qi::char_;
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using qi::byte_;
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using qi::string;
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using qi::short_;
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using qi::ushort_;
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using qi::word;
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using qi::big_word;
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using qi::little_word;
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using qi::int_;
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using qi::uint_;
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using qi::dword;
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using qi::big_dword;
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using qi::little_dword;
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using qi::long_;
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using qi::ulong_;
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using qi::qword;
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using qi::big_qword;
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using qi::little_qword;
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using qi::float_;
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using qi::bin_float;
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using qi::big_bin_float;
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using qi::little_bin_float;
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using qi::double_;
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using qi::bin_double;
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using qi::big_bin_double;
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using qi::little_bin_double;
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using karma::lit;
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using karma::char_;
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using karma::long_;
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using karma::double_;
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using karma::bool_;
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using karma::eps;
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using karma::attr_cast;
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using karma::maxwidth;
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using karma::buffer;
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using _val_type = phx::actor<spirit::attribute<0>>;
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using _r0_type = phx::actor<spirit::attribute<0>>;
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using _r1_type = phx::actor<spirit::attribute<1>>;
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using _r2_type = phx::actor<spirit::attribute<2>>;
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using _r3_type = phx::actor<spirit::attribute<3>>;
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}}
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namespace ircd::spirit::local
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{
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using qi::_1;
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using qi::_2;
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using qi::_3;
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}
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template<class parent_error>
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struct ircd::spirit::expectation_failure
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:parent_error
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{
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template<class it = const char *>
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expectation_failure(const qi::expectation_failure<it> &e,
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const ssize_t &show_max = 64);
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template<class it = const char *>
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expectation_failure(const qi::expectation_failure<it> &e,
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const it &start,
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const ssize_t &show_max = 64);
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};
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template<class parent>
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template<class it>
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ircd::spirit::expectation_failure<parent>::expectation_failure(const qi::expectation_failure<it> &e,
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const ssize_t &show_max)
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:parent
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{
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"Expected %s. You input %zd invalid characters :%s",
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ircd::string(rulebuf, e.what_),
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std::distance(e.first, e.last),
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string_view{e.first, e.first + std::min(std::distance(e.first, e.last), show_max)}
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}
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{}
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template<class parent>
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template<class it>
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ircd::spirit::expectation_failure<parent>::expectation_failure(const qi::expectation_failure<it> &e,
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const it &start,
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const ssize_t &show_max)
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:parent
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{
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"Expected %s. You input %zd invalid characters somewhere between position %zd and %zd: %s",
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ircd::string(rulebuf, e.what_),
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std::distance(e.first, e.last),
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std::distance(start, e.first),
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std::distance(start, e.last),
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string_view{e.first, e.first + std::min(std::distance(e.first, e.last), show_max)}
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}
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{}
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#endif // HAVE_IRCD_SPIRIT_H
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