libcruft-util/uri.cpp.rl

/*
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 *
 * Copyright 2015 Danny Robson <danny@nerdcruft.net>
 */

#include "uri.hpp"

#include <algorithm>
#include <iostream>

// We generate some really old style C code via ragel here, so we have to
// disable some noisy warnings (doubly so given -Werror)
#pragma GCC diagnostic ignored "-Wold-style-cast"

using cruft::uri;


///////////////////////////////////////////////////////////////////////////////
%%{
    machine impl;

    action trace { if (0) std::cerr << *p; }
    action success {__success = true; }
    action failure {__success = false; }

    action scheme_begin { m_views[SCHEME] = { p, p }; }
    action scheme_end   { m_views[SCHEME] = { m_views[SCHEME].begin (), p }; }

    action hier_begin { m_views[HIERARCHICAL] = { p, p }; }
    action hier_end   { m_views[HIERARCHICAL] = { m_views[HIERARCHICAL].begin (), p }; }

    action user_begin { m_views[USER] = { p, p }; }
    action user_end   { m_views[USER] = { m_views[USER].begin (), p }; }

    action host_begin { m_views[HOST] = { p, p }; }
    action host_end   { m_views[HOST] = { m_views[HOST].begin (), p }; }

    action port_begin { m_views[PORT] = { p, p }; }
    action port_end   { m_views[PORT] = { m_views[PORT].begin (), p }; }

    action authority_begin { m_views[AUTHORITY] = { p, p}; }
    action authority_end   { m_views[AUTHORITY] = { m_views[AUTHORITY].begin (), p }; }

    action path_begin { m_views[PATH] = { p, p}; }
    action path_end   { m_views[PATH] = { m_views[PATH].begin (), p }; }

    action query_begin { m_views[QUERY] = { p, p}; }
    action query_end   { m_views[QUERY] = { m_views[QUERY].begin (), p }; }


    action fragment_begin { m_views[FRAGMENT] = { p, p}; }
    action fragment_end   { m_views[FRAGMENT] = { m_views[FRAGMENT].begin (), p }; }

    action uri_begin {}
    action uri_end {}

    include rfc3986 'rfc3986.rl';

    impl := URI >uri_begin %uri_end
    %success
    $!failure
    $trace;

    write data;
}%%


///////////////////////////////////////////////////////////////////////////////
cruft::uri::uri (std::string &&_value):
    m_views {
        nullptr,
        nullptr,
        nullptr,
        nullptr,
        nullptr,
        nullptr,
        nullptr,
        nullptr,
        nullptr
    },
    m_value (std::move (_value))
{
    const char *p   = m_value.data ();
    const char *pe  = m_value.data () + m_value.size ();
    const char *eof = pe;

    bool __success = false;

    int cs;

    %%write init;
    %%write exec;

    if (!__success)
        throw parse_error ("invalid uri");
}