/// <summary>
/// Check if a dir/file name contains invalid character
/// </summary>
/// @param [in] name -- contains dir/file name to be checked
/// on return, it contains a whitespace-trimmed version
/// </param>
/// <returns> null -- contains invalid characters </returns>
/// <returns> String -- may be modified name </returns>
protected internal virtual string checkInvalidChars(string name)
{
if (SqlFsFunc.isNullOrEmpty(name))
{
return(null);
}
string trimmedStr = SqlFsFunc.Trim(name, SqlFsConst.CHARSTOTRIM);
if (SqlFsFunc.isNullOrEmpty(trimmedStr)) // check once again
{
return(null);
}
if (SqlFsFunc.indexOfAny(trimmedStr, SqlFsConst.INVALIDCHARS) >= 0)
{
return(null);
}
if (trimmedStr.Equals(SqlFsConst.CURDIR)) // can't be '.'
{
return(null);
}
if (trimmedStr.Equals(SqlFsConst.PARENTDIR)) // can't be '..'
{
return(null);
}
return(trimmedStr);
}
