One
alternative could be to implement
{s.count, delimiter}
which would tell how many items a list separated by delimiter has.
That can be
added, probably it would be just a generic {s.count,char} =>
return the number of appearances of char in the value.
Then for a param-like list with such delimiter it has to add 1. However,
for this specific case, to have a proper context parsing, in order to be
sure the params are well formatted, it should not be just a bare string
walk through.
In my current use case, the list is not a parameter list, but any
list.
So s.count would suffice.