fun substring(from: Int, count: Int): SELFTYPE is abstract
# Iterates on the substrings of self if any
- fun substrings: Iterator[Text] is abstract
+ fun substrings: Iterator[FlatText] is abstract
# Is the current Text empty (== "")
#
# assert "helloworld".insert_at(" ", 5) == "hello world"
fun insert_at(s: String, pos: Int): SELFTYPE is abstract
- redef fun substrings: Iterator[String] is abstract
+ redef fun substrings is abstract
# Returns a reversed version of self
#