src/esi/Parser.cc

   1 /*
   2  * DEBUG: section 86    ESI processing
   3  * AUTHOR: Robert Collins
   4  *
   5  * SQUID Web Proxy Cache          http://www.squid-cache.org/
   6  * ----------------------------------------------------------
   7  *
   8  *  Squid is the result of efforts by numerous individuals from
   9  *  the Internet community; see the CONTRIBUTORS file for full
  10  *  details.   Many organizations have provided support for Squid's
  11  *  development; see the SPONSORS file for full details.  Squid is
  12  *  Copyrighted (C) 2001 by the Regents of the University of
  13  *  California; see the COPYRIGHT file for full details.  Squid
  14  *  incorporates software developed and/or copyrighted by other
  15  *  sources; see the CREDITS file for full details.
  16  *
  17  *  This program is free software; you can redistribute it and/or modify
  18  *  it under the terms of the GNU General Public License as published by
  19  *  the Free Software Foundation; either version 2 of the License, or
  20  *  (at your option) any later version.
  21  *
  22  *  This program is distributed in the hope that it will be useful,
  23  ;  but WITHOUT ANY WARRANTY; without even the implied warranty of
  24  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25  *  GNU General Public License for more details.
  26  *
  27  *  You should have received a copy of the GNU General Public License
  28  *  along with this program; if not, write to the Free Software
  29  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
  30  *
  31  */
  32
  33 #include "squid.h"
  34 #include "esi/Parser.h"
  35 #include "fatal.h"
  36
  37 char *ESIParser::Type = NULL;
  38 ESIParser::Register *ESIParser::Parsers = NULL;
  39 ESIParser::Register *ESIParser::Parser = NULL;
  40
  41 ESIParser::Pointer
  42 ESIParser::NewParser(ESIParserClient *aClient)
  43 {
  44     if (Parser == NULL) {
  45         Parser = Parsers;
  46
  47         while (Parser != NULL && strcasecmp(Parser->name, Type) != 0)
  48             Parser = Parser->next;
  49
  50         if (Parser == NULL)
  51             fatal ("Unknown ESI Parser type");
  52     }
  53
  54     return (Parser->newParser)(aClient);
  55 }
  56
  57 ESIParser::Register::Register(const char *_name, ESIParser::Pointer (*_newParser)(ESIParserClient *aClient)) : name(_name), newParser(_newParser)
  58 {
  59     this->next = ESIParser::Parsers;
  60     ESIParser::Parsers = this;
  61 }
  62
  63 ESIParser::Register::~Register()
  64 {
  65     // TODO: support random-order deregistration
  66     assert(ESIParser::Parsers == this);
  67     ESIParser::Parsers = next;
  68 }