ex_filetype(exarg_T *eap)
{
    char_u	*arg = eap->arg;
    int		plugin = FALSE;
    int		indent = FALSE;

    if (*eap->arg == NUL)
    {
	// Print current status.
	smsg("filetype detection:%s  plugin:%s  indent:%s",
		filetype_detect ? "ON" : "OFF",
		filetype_plugin ? (filetype_detect ? "ON" : "(on)") : "OFF",
		filetype_indent ? (filetype_detect ? "ON" : "(on)") : "OFF");
	return;
    }

    // Accept "plugin" and "indent" in any order.
    for (;;)
    {
	if (STRNCMP(arg, "plugin", 6) == 0)
	{
	    plugin = TRUE;
	    arg = skipwhite(arg + 6);
	    continue;
	}
	if (STRNCMP(arg, "indent", 6) == 0)
	{
	    indent = TRUE;
	    arg = skipwhite(arg + 6);
	    continue;
	}
	break;
    }
    if (STRCMP(arg, "on") == 0 || STRCMP(arg, "detect") == 0)
    {
	if (*arg == 'o' || !filetype_detect)
	{
	    source_runtime((char_u *)FILETYPE_FILE, DIP_ALL);
	    filetype_detect = TRUE;
	    if (plugin)
	    {
		source_runtime((char_u *)FTPLUGIN_FILE, DIP_ALL);
		filetype_plugin = TRUE;
	    }
	    if (indent)
	    {
		source_runtime((char_u *)INDENT_FILE, DIP_ALL);
		filetype_indent = TRUE;
	    }
	}
	if (*arg == 'd')
	{
	    (void)do_doautocmd((char_u *)"filetypedetect BufRead", TRUE, NULL);
	    do_modelines(0);
	}
    }
    else if (STRCMP(arg, "off") == 0)
    {
	if (plugin || indent)
	{
	    if (plugin)
	    {
		source_runtime((char_u *)FTPLUGOF_FILE, DIP_ALL);
		filetype_plugin = FALSE;
	    }
	    if (indent)
	    {
		source_runtime((char_u *)INDOFF_FILE, DIP_ALL);
		filetype_indent = FALSE;
	    }
	}
	else
	{
	    source_runtime((char_u *)FTOFF_FILE, DIP_ALL);
	    filetype_detect = FALSE;
	}
    }
    else
	semsg(_(e_invalid_argument_str), arg);
}
ex_filetype(exarg_T *eap)
{
    char_u	*arg = eap->arg;
    int		plugin = FALSE;
    int		indent = FALSE;

    if (*eap->arg == NUL)
    {
	 
	smsg("filetype detection:%s  plugin:%s  indent:%s",
		filetype_detect ? "ON" : "OFF",
		filetype_plugin ? (filetype_detect ? "ON" : "(on)") : "OFF",
		filetype_indent ? (filetype_detect ? "ON" : "(on)") : "OFF");
	return;
    }

     
    for (;;)
    {
	if (STRNCMP(arg, "plugin", 6) == 0)
	{
	    plugin = TRUE;
	    arg = skipwhite(arg + 6);
	    continue;
	}
	if (STRNCMP(arg, "indent", 6) == 0)
	{
	    indent = TRUE;
	    arg = skipwhite(arg + 6);
	    continue;
	}
	break;
    }
    if (STRCMP(arg, "on") == 0 || STRCMP(arg, "detect") == 0)
    {
	if (*arg == 'o' || !filetype_detect)
	{
	    source_runtime((char_u *)FILETYPE_FILE, DIP_ALL);
	    filetype_detect = TRUE;
	    if (plugin)
	    {
		source_runtime((char_u *)FTPLUGIN_FILE, DIP_ALL);
		filetype_plugin = TRUE;
	    }
	    if (indent)
	    {
		source_runtime((char_u *)INDENT_FILE, DIP_ALL);
		filetype_indent = TRUE;
	    }
	}
	if (*arg == 'd')
	{
	    (void)do_doautocmd((char_u *)"filetypedetect BufRead", TRUE, NULL);
	    do_modelines(0);
	}
    }
    else if (STRCMP(arg, "off") == 0)
    {
	if (plugin || indent)
	{
	    if (plugin)
	    {
		source_runtime((char_u *)FTPLUGOF_FILE, DIP_ALL);
		filetype_plugin = FALSE;
	    }
	    if (indent)
	    {
		source_runtime((char_u *)INDOFF_FILE, DIP_ALL);
		filetype_indent = FALSE;
	    }
	}
	else
	{
	    source_runtime((char_u *)FTOFF_FILE, DIP_ALL);
	    filetype_detect = FALSE;
	}
    }
    else
	semsg(_(e_invalid_argument_str), arg);
}