/*
 * DEBUG: section 86    ESI processing
 * AUTHOR: Robert Collins
 *
 * SQUID Web Proxy Cache          http://www.squid-cache.org/
 * ----------------------------------------------------------
 *
 *  Squid is the result of efforts by numerous individuals from
 *  the Internet community; see the CONTRIBUTORS file for full
 *  details.   Many organizations have provided support for Squid's
 *  development; see the SPONSORS file for full details.  Squid is
 *  Copyrighted (C) 2001 by the Regents of the University of
 *  California; see the COPYRIGHT file for full details.  Squid
 *  incorporates software developed and/or copyrighted by other
 *  sources; see the CREDITS file for full details.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
 *
 */

#include "squid.h"
#include "esi/Parser.h"
#include "fatal.h"

char *ESIParser::Type = NULL;
ESIParser::Register *ESIParser::Parsers = NULL;
ESIParser::Register *ESIParser::Parser = NULL;

ESIParser::Pointer
ESIParser::NewParser(ESIParserClient *aClient)
{
    if (Parser == NULL) {
        Parser = Parsers;

        while (Parser != NULL && strcasecmp(Parser->name, Type) != 0)
            Parser = Parser->next;

        if (Parser == NULL)
            fatal ("Unknown ESI Parser type");
    }

    return (Parser->newParser)(aClient);
}

ESIParser::Register::Register(const char *_name, ESIParser::Pointer (*_newParser)(ESIParserClient *aClient)) : name(_name), newParser(_newParser)
{
    this->next = ESIParser::Parsers;
    ESIParser::Parsers = this;
}

ESIParser::Register::~Register()
{
    // TODO: support random-order deregistration
    assert(ESIParser::Parsers == this);
    ESIParser::Parsers = next;
}