ircisupportparser.cpp

//------------------------------------------------------------------------------
// ircisupportparser.cpp
//------------------------------------------------------------------------------
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
// 02110-1301  USA
//
//------------------------------------------------------------------------------
// Copyright (C) 2014 "Zalewa" <zalewapl@gmail.com>
//------------------------------------------------------------------------------
#include "ircisupportparser.h"

#include "irc/entities/ircuserprefix.h"
#include <QByteArray>
#include <QRegularExpression>
#include <QStringList>

DClass<IRCISupportParser>
{
public:
        class State
        {
        public:
                IRCUserPrefix userPrefixes;

                State()
                {
                        userPrefixes = IRCUserPrefix::mkDefault();
                }
        };

        QStringList iSupportParams;
        State state;
};

DPointered(IRCISupportParser)

IRCISupportParser::IRCISupportParser()
{
}

IRCISupportParser::~IRCISupportParser()
{
}

void IRCISupportParser::appendLine(const QString &line)
{
        for (const QString &element : line.split(" "))
        {
                if (element == ":are")
                {
                        // Start of ":are supported by this server".
                        // We don't need this.
                        break;
                }
                d->iSupportParams << element;
        }
}

QString IRCISupportParser::findValue(const QString &key)
{
        for (const QString &element : d->iSupportParams)
        {
                if (element.startsWith(key))
                        return element.mid(key.length());
        }
        return QString();
}

void IRCISupportParser::parse()
{
        d->state = PrivData<IRCISupportParser>::State();
        parsePrefix();
}

void IRCISupportParser::parsePrefix()
{
        QString value = findValue("PREFIX=");
        if (value.isNull())
                return;
        QRegularExpression regex(R"(\((\S+)\)(\S+)$)", QRegularExpression::InvertedGreedinessOption);
        auto match = regex.match(value);
        if (!match.hasMatch())
                return;
        QByteArray modes = match.captured(1).toUtf8();
        QByteArray prefixes = match.captured(2).toUtf8();
        if (modes.size() != prefixes.size())
                return;
        IRCUserPrefix userPrefixes;
        for (int i = 0; i < modes.size(); ++i)
                userPrefixes.assignPrefix(modes[i], prefixes[i]);
        d->state.userPrefixes = userPrefixes;
}

const IRCUserPrefix &IRCISupportParser::userPrefixes() const
{
        return d->state.userPrefixes;
}