public static string divideSpace(string expr)
{
charType lastTok = charType.unknown;
string result = "";
foreach (char c in expr)
{
if (char.IsSeparator(c))
{
continue;
}
if (lastTok.Equals(IdentifyChar(c)) ||
lastTok.Equals(charType.unknown)
)
{
result += c;
}
else
{
result += " " + c;
}
lastTok = IdentifyChar(c);
}
return(result);
}
