/usr/lib/ruby/vendor_ruby/action_dispatch/journey/gtg/simulator.rb is in ruby-actionpack 2:4.2.6-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 | require 'strscan'
module ActionDispatch
module Journey # :nodoc:
module GTG # :nodoc:
class MatchData # :nodoc:
attr_reader :memos
def initialize(memos)
@memos = memos
end
end
class Simulator # :nodoc:
attr_reader :tt
def initialize(transition_table)
@tt = transition_table
end
def simulate(string)
ms = memos(string) { return }
MatchData.new(ms)
end
alias :=~ :simulate
alias :match :simulate
def memos(string)
input = StringScanner.new(string)
state = [0]
while sym = input.scan(%r([/.?]|[^/.?]+))
state = tt.move(state, sym)
end
acceptance_states = state.find_all { |s|
tt.accepting? s
}
return yield if acceptance_states.empty?
acceptance_states.flat_map { |x| tt.memo(x) }.compact
end
end
end
end
end
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