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Contents
require 'rib/core/history' # dependency
module Rib::SqueezeHistory
include Rib::Plugin
Shell.use(self)
# --------------- Rib API ---------------
# squeeze history in memory too
def loop_once
return super if SqueezeHistory.disabled?
begin
# TODO: history[-1] is MRI 1.9+
input, last_input = history[-1], history[-2]
rescue IndexError # EditLine is really broken, to_a is needed for it
array = history.to_a
input, last_input = array[-1], array[-2]
end
history.pop if input.to_s.strip == '' ||
(history.size > 1 && input == last_input)
super
end
# --------------- Plugin API ---------------
# write squeezed history
def write_history
return super if SqueezeHistory.disabled?
config[:history] = squeezed_history
super
end
private
def squeezed_history
# TODO: history.inject is MRI 1.9+
history.to_a.inject([]){ |result, item|
if result.last == item || item.strip == ''
result
else
result << item
end
}
end
end
Version data entries
14 entries across 14 versions & 1 rubygems