class Phlex::Context

def capturing_into(new_buffer)
	original_buffer = @buffer
	original_capturing = @capturing
	original_fragments = @fragments
	begin
		@buffer = new_buffer
		@capturing = true
		@fragments = nil
		yield
	ensure
		@buffer = original_buffer
		@capturing = original_capturing
		@fragments = original_fragments
	end
	new_buffer
end