class Byebug::EvalCommand

def description
  prettify <<-EOD
    e[val] <expression>
    Evaluates <expression> and prints its value.
    * NOTE - unknown input is automatically evaluated, to turn this off
    use 'set noautoeval'.
  EOD
end

def execute
  expr = @match ? @match.post_match : @input
  run_with_binding do |b|
    res = eval_with_setting(b, expr, Setting[:stack_on_error])
    print pr('eval.result', expr: expr, result: res.inspect)
  end
rescue
  puts "#{$ERROR_INFO.class} Exception: #{$ERROR_INFO.message}"
end

def match(input)
  @input = input
  super
end

def names
  %w(eval)
end

def regexp
  /^\s* e(?:val)? \s+/x
end