[String] split(String patt, String str, Int limit=0, Bool allowempty=false)
patt: The pattern string
str: The String to split
limit: The maximum number of pieces (from the left) to split
strinto. If this is parameter is omitted or set to zero an unlimited number of pieces will be allowed.
allowempty: If this is true, then consecutive delimeters will be treated as having an empty string between them. If it is false (or omitted) then consecutive delimeters will be treated as one.
patt as a delimeter, split
str into substrings.
x = "a,b,c"; xs = split(",",x); // ["a","b","c"] xs = split(",",x,1); // ["a","b,c"]