public static string SplitWithSpaces(this string input, CultureInfo culture = null)
{
if (culture == null)
{
culture = CultureInfo.InvariantCulture;
}
TextInfo textInfo = culture.TextInfo;
StringBuilder sb = new StringBuilder(input);
for (int i = 1; i < sb.Length; i++)
{
int previous = i - 1;
if (textInfo.IsLowerCase(sb[previous]))
{
int insertLocation = previous - 1;
if (insertLocation > 0)
{
sb.Insert(insertLocation, ' ');
}
while (i < sb.Length && textInfo.IsLowerCase(sb[i]))
{
i++;
}
}
}
return(sb.ToString());
}