Free Hero Mesh

  if(i=sqlite3_str_length(str)) {
    sqlite3_result_blob(cxt,sqlite3_str_finish(str),i,sqlite3_free);
  } else {
    sqlite3_free(sqlite3_str_finish(str));
    sqlite3_result_zeroblob(cxt,0);
  }
}

static void fn_best_move_list(sqlite3_context*cxt,int argc,sqlite3_value**argv) {
  if(best_list) sqlite3_result_blob(cxt,best_list,strlen(best_list),SQLITE_TRANSIENT);
}

static void fn_best_score(sqlite3_context*cxt,int argc,sqlite3_value**argv) {
  if(best_list && best_score!=NO_SCORE) sqlite3_result_int64(cxt,best_score);
}

static void fn_byte(sqlite3_context*cxt,int argc,sqlite3_value**argv) {
  Uint8*s=malloc(argc+1);
  int i;
  if(!s) {
    sqlite3_result_error_nomem(cxt);
    return;

  .xConnect=vt1_levels_connect,
  .xOpen=vt1_levels_open,
);

void init_sql_functions(sqlite3_int64*ptr0,sqlite3_int64*ptr1) {
  sqlite3_create_function(userdb,"BASENAME",0,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_basename,0,0);
  sqlite3_create_function(userdb,"BCAT",-1,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_bcat,0,0);
  sqlite3_create_function(userdb,"BEST_MOVE_LIST",0,SQLITE_UTF8,0,fn_best_move_list,0,0);
  sqlite3_create_function(userdb,"BEST_SCORE",0,SQLITE_UTF8,0,fn_best_score,0,0);
  sqlite3_create_function(userdb,"BYTE",-1,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_byte,0,0);
  sqlite3_create_function(userdb,"CL",1,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_cl,0,0);
  sqlite3_create_function(userdb,"CLASS_DATA",2,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_class_data,0,0);
  sqlite3_create_function(userdb,"CVALUE",1,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_cvalue,0,0);
  sqlite3_create_function(userdb,"HASH",2,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_hash,0,0);
  sqlite3_create_function(userdb,"HEROMESH_ESCAPE",1,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_heromesh_escape,0,0);
  sqlite3_create_function(userdb,"HEROMESH_TYPE",1,SQLITE_UTF8|SQLITE_DETERMINISTIC,0,fn_heromesh_type,0,0);