src/FDM/JSBSim/input_output/FGXMLParse.cpp

   1 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
   2
   3  Header:       FGXMLParse.cpp
   4  Author:       Jon Berndt
   5  Date started: 08/20/2004
   6  Purpose:      Config file read-in class and XML parser
   7  Called by:    Various
   8
   9  ------------- Copyright (C) 2001  Jon S. Berndt (jon@jsbsim.org) -------------
  10
  11  This program is free software; you can redistribute it and/or modify it under
  12  the terms of the GNU Lesser General Public License as published by the Free Software
  13  Foundation; either version 2 of the License, or (at your option) any later
  14  version.
  15
  16  This program is distributed in the hope that it will be useful, but WITHOUT
  17  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
  18  FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
  19  details.
  20
  21  You should have received a copy of the GNU Lesser General Public License along with
  22  this program; if not, write to the Free Software Foundation, Inc., 59 Temple
  23  Place - Suite 330, Boston, MA  02111-1307, USA.
  24
  25  Further information about the GNU Lesser General Public License can also be found on
  26  the world wide web at http://www.gnu.org.
  27
  28 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  29 INCLUDES
  30 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
  31
  32 #include "FGXMLParse.h"
  33 #include "FGXMLElement.h"
  34 #include <string>
  35 #include <iostream>
  36 #include <cstdlib>
  37 #include "input_output/string_utilities.h"
  38
  39 using namespace std;
  40
  41 namespace JSBSim {
  42
  43 static const char *IdSrc = "$Id: FGXMLParse.cpp,v 1.11 2010/09/28 02:54:03 jberndt Exp $";
  44 static const char *IdHdr = ID_XMLPARSE;
  45
  46 /*%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  47 CLASS IMPLEMENTATION
  48 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%*/
  49
  50 #include "FGXMLParse.h"
  51
  52 using namespace std;
  53
  54 FGXMLParse::FGXMLParse(void)
  55 {
  56   first_element_read = false;
  57   current_element = document = 0L;
  58 }
  59
  60 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  61
  62 FGXMLParse::~FGXMLParse(void)
  63 {
  64   delete document;
  65 }
  66
  67 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  68
  69 void FGXMLParse::startXML(void)
  70 {
  71 }
  72
  73 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  74
  75 void FGXMLParse::reset(void)
  76 {
  77   delete document;
  78   first_element_read = false;
  79   current_element = document = 0L;
  80 }
  81
  82 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  83
  84 void FGXMLParse::endXML(void)
  85 {
  86   // At this point, document should equal current_element ?
  87 }
  88
  89 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  90
  91 void FGXMLParse::startElement (const char * name, const XMLAttributes &atts)
  92 {
  93   string Name(name);
  94   Element *temp_element;
  95
  96   working_string.erase();
  97
  98   if (!first_element_read) {
  99     document = new Element(Name);
 100     current_element = document;
 101     first_element_read = true;
 102   } else {
 103     temp_element = new Element(Name);
 104     temp_element->SetParent(current_element);
 105     current_element->AddChildElement(temp_element);
 106     current_element = temp_element;
 107   }
 108
 109   if (current_element == 0L) {
 110     cerr << "No current element read (no top-level element in XML file?)" << endl;
 111     exit (-1);
 112   }
 113
 114   for (int i=0; i<atts.size();i++) {
 115     current_element->AddAttribute(atts.getName(i), atts.getValue(i));
 116   }
 117 }
 118
 119 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 120
 121 void FGXMLParse::endElement (const char * name)
 122 {
 123   if (!working_string.empty()) {
 124     vector <string> work_strings = split(working_string, '\n');
 125     for (unsigned int i=0; i<work_strings.size(); i++) current_element->AddData(work_strings[i]);
 126   }
 127
 128   current_element = current_element->GetParent();
 129 }
 130
 131 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 132
 133 void FGXMLParse::data (const char * s, int length)
 134 {
 135   working_string += string(s, length);
 136 }
 137
 138 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 139
 140 void FGXMLParse::pi (const char * target, const char * data)
 141 {
 142 }
 143
 144 //%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 145
 146 void FGXMLParse::warning (const char * message, int line, int column)
 147 {
 148   cerr << "Warning: " << message << " line: " << line << " column: " << column << endl;
 149 }
 150
 151 } // end namespace JSBSim