File: yyerr.y

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racc 1.8.1-2
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#
#
# Test grammar file for error handling.

class A
rule

target: a b c

a :
      {
        yyerror
        raise ArgumentError, "yyerror failed"
      }
  | error

b :
      {
        yyerrok
      }

c :
      {
        yyaccept
        raise "yyaccept failed"
      }

end

---- inner

  def parse
    do_parse
  end

  def next_token
    [false, '$end']
  end

  def on_error(*args)
    $stderr.puts "on_error called: args=#{args.inspect}"
  end

---- footer

A.new.parse