# Immutable sequence of characters.
#
# String objects may be created using literals.
#
# ~~~
# assert "Hello World!" isa String
# ~~~
abstract class String
	super Text

	redef type SELFTYPE: String is fixed

	redef fun to_s do return self

	redef fun clone do return self

	redef fun to_buffer do return new Buffer.from_text(self)

	redef fun to_camel_case do
		if self.is_upper then return self

		var new_str = new Buffer.with_cap(length)
		new_str.append self
		new_str.camel_case
		return new_str.to_s
	end

	redef fun to_snake_case do
		if self.is_lower then return self

		var new_str = new Buffer.with_cap(self.length)
		new_str.append self
		new_str.snake_case
		return new_str.to_s
	end
end