func: static void flat_print_key_prefix(WriterContext *wctx)
  
  {
  
      FlatContext *flat = wctx->priv;
  
      const struct section *parent_section = wctx->section[wctx->level-1];
  
  
  
      printf("%s", flat->section_header[wctx->level].str);
  
  
  
      if (parent_section->flags & SECTION_FLAG_IS_ARRAY) {
  
          int n = parent_section->id == SECTION_ID_PACKETS_AND_FRAMES ?
  
              wctx->nb_section_packet_frame : wctx->nb_item[wctx->level-1];
  
          printf("%d%s", n, flat->sep_str);
  
      }
  
  }
  