source: trunk/gsdl/src/colservr/expat_document.cpp@ 9189

#include <string.h>
#include <expat.h>

#include "expat_document.h"

#if defined(GSDL_USE_OBJECTSPACE)
#  include <ospace\std\iostream>
#elif defined(GSDL_USE_IOS_H)
#  include <iostream.h>
#else
#  include <iostream>
using namespace std;
#endif

#include "text_t.h"
#include "fileutil.h"
#include "expat_resultset.h"

struct resultpack {
  text_t text;
  text_t current_section;
};

text_t current_text;
text_t section_num;
text_t section_level;

bool store_text = false;


static void XMLCALL 
startElement(void *userData, const char *name, const char **attributes)
{
  text_t element_name = (char*)name;
  if (element_name == section_level) {
    text_t id_att = (char *)get_attribute(attributes,"gs2:id");
    if (id_att == section_num) {
      store_text = true;
    }
    
  }
}

static void XMLCALL
endElement(void *userData, const char *name)
{
  text_t element_name = (char*)name;
  if (element_name == section_level) {
    if (store_text == true) {
      // we have finished now, can we quit this??
      store_text = false;
    }
  }
  
}

static void XMLCALL
characterData(void *userData, const char * text, int len) {
  if  (store_text) {
    current_text.appendcarr(text, len);
  }
}
int expat_document(const text_t &filename, const text_t &sec_level, const text_t &sec_num, text_t & doc_content){

  current_text.clear();
  text_t current_section;
  resultpack rpack = { doc_content, current_section };
  
  section_num = sec_num;
  section_level = sec_level;
  text_t doc_text;
  read_file(filename, doc_text);

  
  char * c_doc_text = doc_text.getcstr();
  XML_Parser parser = XML_ParserCreate(NULL);
  
  XML_SetUserData(parser, &rpack);
  XML_SetElementHandler(parser, startElement, endElement);
  XML_SetCharacterDataHandler(parser, characterData);
  int return_status = 0;
  const int parse_status 
    = XML_Parse(parser, c_doc_text, strlen(c_doc_text), XML_TRUE);

  if (parse_status == XML_STATUS_ERROR) {
    fprintf(stderr,
        "%s at line %d\n",
        XML_ErrorString(XML_GetErrorCode(parser)),
        XML_GetCurrentLineNumber(parser));
    return_status = 1;
  }
  
  XML_ParserFree(parser);
  free(c_doc_text);
  doc_content.clear();
  doc_content.append(current_text);
  return return_status;
}