class Gherkin::Parser::Parser::Machine

Public Class Methods

new(parser, name) click to toggle source
# File lib/gherkin/parser/parser.rb, line 86
def initialize(parser, name)
  @parser = parser
  @name = name
  @transition_map = transition_map(name)
  @state = name
end

Public Instance Methods

event(ev, line) { |state, expected| ... } click to toggle source
# File lib/gherkin/parser/parser.rb, line 93
def event(ev, line)
  states = @transition_map[@state]
  raise "Unknown state: #{@state.inspect} for machine #{@name}" if states.nil?
  new_state = states[ev]
  case new_state
  when "E"
    yield @state, expected
  when %rpush\((.+)\)/
    @parser.push_machine($1)
    @parser.event(ev, line)
  when "pop()"
    @parser.pop_machine()
    @parser.event(ev, line)
  else
    raise "Unknown transition: #{ev.inspect} among #{states.inspect} for machine #{@name}" if new_state.nil?
    @state = new_state
  end
end
expected() click to toggle source
# File lib/gherkin/parser/parser.rb, line 112
def expected
  allowed = @transition_map[@state].find_all { |_, action| action != "E" }
  allowed.collect { |state| state[0] }.sort - ['eof']
end