xml_parser.cpp

00001 /* 
00002 * <xml_parser.cpp>
00003 * Copyright (C) DOLPHIN Project-Team, INRIA Futurs, 2006-2007
00004 * (C) OPAC Team, LIFL, 2002-2007
00005 *
00006 * Sebastien Cahon, Alexandru-Adrian Tantar
00007 *
00008 * This software is governed by the CeCILL license under French law and
00009 * abiding by the rules of distribution of free software.  You can  use,
00010 * modify and/ or redistribute the software under the terms of the CeCILL
00011 * license as circulated by CEA, CNRS and INRIA at the following URL
00012 * "http://www.cecill.info".
00013 *
00014 * As a counterpart to the access to the source code and  rights to copy,
00015 * modify and redistribute granted by the license, users are provided only
00016 * with a limited warranty  and the software's author,  the holder of the
00017 * economic rights,  and the successive licensors  have only  limited liability.
00018 *
00019 * In this respect, the user's attention is drawn to the risks associated
00020 * with loading,  using,  modifying and/or developing or reproducing the
00021 * software by the user in light of its specific status of free software,
00022 * that may mean  that it is complicated to manipulate,  and  that  also
00023 * therefore means  that it is reserved for developers  and  experienced
00024 * professionals having in-depth computer knowledge. Users are therefore
00025 * encouraged to load and test the software's suitability as regards their
00026 * requirements in conditions enabling the security of their systems and/or
00027 * data to be ensured and,  more generally, to use and operate it in the
00028 * same conditions as regards security.
00029 * The fact that you are presently reading this means that you have had
00030 * knowledge of the CeCILL license and that you accept its terms.
00031 *
00032 * ParadisEO WebSite : http://paradiseo.gforge.inria.fr
00033 * Contact: paradiseo-help@lists.gforge.inria.fr
00034 *
00035 */
00036 
00037 #include <libxml/xmlreader.h>
00038 
00039 #include "xml_parser.h"
00040 
00041 static xmlTextReaderPtr reader;
00042 
00043 void openXMLDocument (const char * __filename) {
00044   
00045   reader = xmlNewTextReaderFilename (__filename);
00046   
00047   if (! reader) {
00048     
00049     fprintf (stderr, "unable to open '%s'.\n", __filename);
00050     exit (1);
00051   }
00052 }
00053 
00054 void closeXMLDocument () {
00055 
00056   xmlFreeTextReader (reader);
00057 }
00058 
00059 std :: string getAttributeValue (const std :: string & __attr) {
00060   
00061   xmlChar * value = xmlTextReaderGetAttribute (reader, (const xmlChar *) __attr.c_str ());
00062   
00063   std :: string str ((const char *) value);
00064   
00065   xmlFree (value);
00066   
00067   return str;
00068 }
00069 
00070 static bool isSep (const xmlChar * __text) {
00071   
00072   for (unsigned i = 0; i < strlen ((char *) __text); i ++)
00073     if (__text [i] != ' ' && __text [i] != '\t' && __text [i] != '\n')
00074       return false;
00075   return true;
00076 }
00077 
00078 std :: string getNextNode () {
00079   
00080   xmlChar * name, * value;
00081 
00082   do {
00083     xmlTextReaderRead (reader);
00084     name = xmlTextReaderName (reader);
00085     value = xmlTextReaderValue (reader);
00086     //    printf ("value = %s\n", value);
00087   } while (! strcmp ((char *) name, "#text") && isSep (value));
00088 
00089   std :: string str;
00090 
00091   if (strcmp ((char *) name, "#text"))
00092     str.assign ((char *) name);
00093   else
00094     str.assign ((char *) value);
00095   
00096   if (name)
00097     xmlFree (name);
00098   if (value)
00099     xmlFree (value);
00100     
00101   return str;
00102 }
00103 

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