matthewtodd

#!/bin/sh

tmux start-server

if ! $(tmux has-session -t grow); then
  tmux new-session -d -s grow -n foreground
  tmux send-keys 'cd .' C-m C-l
  tmux send-keys 'AUTOFEATURE=true autotest --quiet' C-m
  tmux split-window -h
  tmux send-keys 'cd .' C-m C-l

yhara

#
# Zipper has @left and @right.
# When a zipper represents [1, 2, 3, <cursor>, 4, 5],
#  @left == [3, [2, [1, []]]],  @right == [4, [5, []]]
# Note that @left is in reverse order.
#
class Zipper
  include Enumerable

  def self.make(*vals)