module Tnql
  grammar Staging
    rule stage
      space stage_detail word_break
    end

    rule stage_detail
      ('stage' space stages:stage_value* / 'unstaged' / 'valid stage') <Nodes::StageDetailNode>
    end

    rule stage_value
      number / unstageable / insufficient_info
    end

    rule unstageable
      'u'
    end

    rule insufficient_info
      '?'
    end
  end
end