Function processResultSetTag

maptemplate.c:980–1080

** Function to process a [resultset ...] tag. */

** Function to process a [resultset ...] tag.
*/
static int processResultSetTag(mapservObj *mapserv, char **line, FILE *stream) 
{
  char lineBuffer[MS_BUFFER_LENGTH];
  int foundTagEnd;

  char *preTag, *postTag; /* text before and after the tag */

  char *tag, *tagStart;
  hashTableObj *tagArgs=NULL;

  char *layerName=NULL;
  char *nodata=NULL;

  int layerIndex=-1;
  layerObj *lp;

  if(!*line) {
    msSetError(MS_WEBERR, "Invalid line pointer.", "processResultSetTag()");
    return(MS_FAILURE);
  }

  tagStart = findTag(*line, "resultset");
  if(!tagStart) return(MS_SUCCESS); /* OK, just return; */

  while (tagStart) {  
    /* initialize the tag arguments */
    layerName = NULL;


    /* check for any tag arguments */
    if(getTagArgs("resultset", tagStart, &tagArgs) != MS_SUCCESS) return(MS_FAILURE);
    if(tagArgs) {
      layerName = msLookupHashTable(tagArgs, "layer");
      nodata = msLookupHashTable(tagArgs, "nodata");
    }

    if(!layerName) {
      msSetError(MS_WEBERR, "[resultset] tag missing required 'layer' argument.", "processResultSetTag()");
      return(MS_FAILURE);
    }

    layerIndex = msGetLayerIndex(mapserv->map, layerName);
    if(layerIndex>=mapserv->map->numlayers || layerIndex<0) {
      msSetError(MS_MISCERR, "Layer named '%s' does not exist.", "processResultSetTag()", layerName);
      return MS_FAILURE;
    }
    lp = GET_LAYER(mapserv->map, layerIndex);

    if(strstr(*line, "[/resultset]") == NULL) { /* read ahead */
      if(!stream) {
        msSetError(MS_WEBERR, "Invalid file pointer.", "processResultSetTag()");
        return(MS_FAILURE);
      }

      foundTagEnd = MS_FALSE;
      while(!foundTagEnd) {
        if(fgets(lineBuffer, MS_BUFFER_LENGTH, stream) != NULL) {
          *line = msStringConcatenate(*line, lineBuffer);