Note also that using a range to loop through a string is not a good idea if
it might contain unicode characters.
s = "a°sd2β2"
for i=1:length(s)
print(s[i])
end
LoadError: UnicodeError: invalid character index
Last time I checked there was still some functions in Base like findlast that
had such issue.
The correct way to do it is to use start/done/next. That said it can become a
bit tedious, when you have to reverse the string order first or so.
I found that using a vector of characters is sometimes an easy solution.
