Kaya: Library documentation: Regex::split (devel version)

[String] split(Regex pattre, String origstr, Int limit=0, Bool allowempty=false)

pattre: A compiled regular expression
str: The String to split
limit: The maximum number of pieces (from the left) to split str into. If this is parameter is omitted or set to zero an unlimited number of pieces will be allowed. Note that if allowempty is false that the empty strings will count towards the limit but will not appear in the returned array.
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.

Using pattre as a delimeter, split str into substrings.