}
      break;
    }
    case MODE_ScanExp:
    case MODE_Explain: {
      static const int aExplainWidth[] = {4,       13, 4, 4, 4, 13, 2, 13};
      static const int aExplainMap[] =   {0,       1,  2, 3, 4, 5,  6, 7 };
      static const int aScanExpWidth[] = {4, 6, 6, 13, 4, 4, 4, 13, 2, 13};
      static const int aScanExpWidth[] = {4, 15, 6, 13, 4, 4, 4, 13, 2, 13};
      static const int aScanExpMap[] =   {0, 9, 8, 1,  2, 3, 4, 5,  6, 7 };

      const int *aWidth = aExplainWidth;
      const int *aMap = aExplainMap;
      int nWidth = ArraySize(aExplainWidth);
      int iIndent = 1;

#ifndef SQLITE_ENABLE_STMT_SCANSTATUS
  UNUSED_PARAMETER(db);
  UNUSED_PARAMETER(pArg);
#else
  if( pArg->scanstatsOn==3 ){
    const char *zSql =
      "  SELECT addr, opcode, p1, p2, p3, p4, p5, comment, nexec,"
      "   format('% 6s (%.2f%%)',"
      "      CASE WHEN ncycle<100_000 THEN ncycle || ' '"
      "         WHEN ncycle<100_000_000 THEN (ncycle/1_000) || 'K'"
      "         WHEN ncycle<100_000_000_000 THEN (ncycle/1_000_000) || 'M'"
      "         ELSE (ncycle/1000_000_000) || 'G' END,"
      "   round(ncycle*100.0 / (sum(ncycle) OVER ()), 2)||'%' AS cycles"
      "       ncycle*100.0/(sum(ncycle) OVER ())"
      "   )  AS cycles"
      "   FROM bytecode(?)";

    int rc = SQLITE_OK;
    sqlite3_stmt *pStmt = 0;
    rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0);
    if( rc==SQLITE_OK ){
      sqlite3_stmt *pSave = pArg->pStmt;

  return home_dir;
}

/*
** On non-Windows platforms, look for $XDG_CONFIG_HOME.
** If ${XDG_CONFIG_HOME}/sqlite3/sqliterc is found, return
** the path to it, else return 0. The result is cached for
** subsequent calls.
** the path to it.  If there is no $(XDG_CONFIG_HOME) then
** look for $(HOME)/.config/sqlite3/sqliterc and if found
** return that.  If none of these are found, return 0.
**
** The string returned is obtained from sqlite3_malloc() and
** should be freed by the caller.
*/
static const char *find_xdg_config(void){
static char *find_xdg_config(void){
#if defined(_WIN32) || defined(WIN32) || defined(_WIN32_WCE) \
     || defined(__RTP__) || defined(_WRS_KERNEL)
  return 0;
#else
  static int alreadyTried = 0;
  static char *zConfig = 0;
  char *zConfig = 0;
  const char *zXdgHome;

  if( alreadyTried!=0 ){
    return zConfig;
  }
  alreadyTried = 1;
  zXdgHome = getenv("XDG_CONFIG_HOME");
  if( zXdgHome==0 ){
    const char *zHome = getenv("HOME");
    return 0;
  }
  zConfig = sqlite3_mprintf("%s/sqlite3/sqliterc", zXdgHome);
    if( zHome==0 ) return 0;
    zConfig = sqlite3_mprintf("%s/.config/sqlite3/sqliterc", zHome);
  }else{
    zConfig = sqlite3_mprintf("%s/sqlite3/sqliterc", zXdgHome);
  }
  shell_check_oom(zConfig);
  if( access(zConfig,0)!=0 ){
    sqlite3_free(zConfig);
    zConfig = 0;
  }
  return zConfig;
#endif

  char *home_dir = NULL;
  const char *sqliterc = sqliterc_override;
  char *zBuf = 0;
  FILE *inSaved = p->in;
  int savedLineno = p->lineno;

  if( sqliterc == NULL ){
    sqliterc = find_xdg_config();
    sqliterc = zBuf = find_xdg_config();
  }
  if( sqliterc == NULL ){
    home_dir = find_home_dir(0);
    if( home_dir==0 ){
      eputz("-- warning: cannot find home directory;"
            " cannot read ~/.sqliterc\n");
      return;