libdap++ Updated for version 3.8.2

AISDatabaseParser.h

Go to the documentation of this file.
00001 
00002 // -*- mode: c++; c-basic-offset:4 -*-
00003 
00004 // This file is part of libdap, A C++ implementation of the OPeNDAP Data
00005 // Access Protocol.
00006 
00007 // Copyright (c) 2003 OPeNDAP, Inc.
00008 // Author: James Gallagher <jgallagher@opendap.org>
00009 //
00010 // This library is free software; you can redistribute it and/or
00011 // modify it under the terms of the GNU Lesser General Public
00012 // License as published by the Free Software Foundation; either
00013 // version 2.1 of the License, or (at your option) any later version.
00014 //
00015 // This library is distributed in the hope that it will be useful,
00016 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00018 // Lesser General Public License for more details.
00019 //
00020 // You should have received a copy of the GNU Lesser General Public
00021 // License along with this library; if not, write to the Free Software
00022 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00023 //
00024 // You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
00025 
00026 #ifndef ais_database_parser_h
00027 #define ais_database_parser_h
00028 
00029 #include <string>
00030 
00031 #include <libxml/parserInternals.h>
00032 
00033 #ifndef _internal_err_h
00034 #include "InternalErr.h"
00035 #endif
00036 
00037 #ifndef ais_exceptions_h
00038 #include "AISExceptions.h"
00039 #endif
00040 
00041 #ifndef ais_resources_h
00042 #include "AISResources.h"
00043 #endif
00044 
00045 namespace libdap
00046 {
00047 
00069 class AISDatabaseParser
00070 {
00071 private:
00074     enum ParseState {
00075         PARSER_START,
00076         PARSER_FINISH,
00077         AIS,
00078         ENTRY,
00079         PRIMARY,
00080         ANCILLARY,
00081         PARSER_UNKNOWN,
00082         PARSER_ERROR
00083     };
00084 
00099     struct AISParserState
00100     {
00101         ParseState state; // current state
00102         ParseState prev_state; // previous state
00103         int unknown_depth; // handle recursive unknown tags
00104 
00105         string error_msg; // Error message(s), if any.
00106 
00107         xmlParserCtxtPtr ctxt; // used for error msg line numbers
00108         AISResources *ais;  // dump info here
00109 
00110         string primary;  // current entry's primary URL/Regexp
00111         bool regexp;  // True if primary is a regexp
00112 
00113         ResourceVector rv; // add ancillary entries to rv
00114     };
00115 
00116 public:
00117     void intern(const string &database, AISResources *ais);
00118 
00119     static void aisStartDocument(AISParserState *state);
00120     static void aisEndDocument(AISParserState *state);
00121     static void aisStartElement(AISParserState *state, const char *name,
00122                                 const char **attrs);
00123     static void aisEndElement(AISParserState *state, const char *name);
00124     static xmlEntityPtr aisGetEntity(AISParserState *state,
00125                                      const xmlChar *name);
00126     static void aisWarning(AISParserState *state, const char *msg, ...);
00127     static void aisError(AISParserState *state, const char *msg, ...);
00128     static void aisFatalError(AISParserState *state, const char *msg, ...);
00129 };
00130 
00131 } // namespace libdap
00132 
00133 #endif // ais_database_parser_h