public static string Trim(string str)
{
for (int index = 0; index < str.Length; index++)
{
if (str[index] < ' ')
{
Set(str, index, ' ');
}
}
for (int c = 0; c < 20; c++)
{
str = str.Replace(" ", " ");
}
str = StringTools.RemoveStartsWith(str, " ");
str = StringTools.RemoveEndsWith(str, " ");
return(str);
}