rosapps/packmgr/lib/options.cpp

   1 ////////////////////////////////////////////////////////
   2 //
   3 // options.cpp
   4 //
   5 // Settting and Loading Options
   6 //
   7 //
   8 // Maarten Bosma, 09.01.2004
   9 // maarten.paul@bosma.de
  10 //
  11 ////////////////////////////////////////////////////////////////////
  12
  13 #include "package.hpp"
  14 #include "log.h"
  15 #include "expat.h"
  16
  17
  18 int PML_XmlDownload (pTree tree, const char* url, void* usrdata,
  19                                                  XML_StartElementHandler start, XML_EndElementHandler end, XML_CharacterDataHandler text) ;
  20
  21
  22 // expat callback for start of a "node" tag
  23 void opt_start (void* usrdata, const char* tag, const char** arg)
  24 {
  25         TREE* tree = (TREE*)usrdata;
  26
  27         if (!strcmp(tag, "source"))
  28         {
  29                 tree->sources.push_back((char*)NULL);
  30                 tree->field = &tree->sources.back();
  31         }
  32 }
  33
  34 // expat callback for end of a "node" tag
  35 void opt_end (void* usrdata, const char* tag)
  36 {
  37         TREE* tree = (TREE*)usrdata;
  38
  39         tree->field = NULL;
  40 }
  41
  42 // expat callback for end of a "node" tag
  43 void opt_text (void* usrdata, const char* data, int len)
  44 {
  45         TREE* tree = (TREE*)usrdata;
  46
  47         if(!tree->field)
  48                 return;
  49
  50         *tree->field = new char[len+1];
  51         strncpy(*tree->field, data, len);
  52         (*tree->field)[len] = '\0';
  53 }
  54
  55
  56 int CreateOptions (TREE* tree)
  57 {
  58 //      string source;
  59
  60 //      ifstream file ("help.txt", ios_base::in);
  61         Log("* Creating options,xml");
  62
  63         return ERR_OK;
  64 }
  65
  66 int LoadOptions (TREE* tree)
  67 {
  68         int error;
  69
  70         error = PML_XmlDownload(tree, "file://options.xml", (void*)tree, opt_start, opt_end, opt_text);
  71         if(!error)
  72                 return ERR_OK;
  73
  74         CreateOptions(tree);
  75         return PML_XmlDownload(tree, "file://options.xml", (void*)tree, opt_start, opt_end, opt_text);
  76 }