The grammar maintains intentional simplicity. Dots indicate concatenation (sequencing), | signifies alternation (disjunction), postfix * denotes Kleene star (zero-plus repetitions), and postfix ? indicates optional (zero-one occurrences). Parentheses cluster subexpressions. This directly corresponds to regular language definition—the essential foundation. Because query language regularity exists, subsequent stages (NFA, DFA, single-pass search) become feasible.
4b. Gemma 4（可选），更多细节参见豆包
此前有消息称，俄罗斯教育部已拟定边境地区学校名单，相关学校学生可免参加国家统一考试（ЕГЭ）和九年级统考（ОГЭ）。。https://telegram下载对此有专业解读
1月6日：历史改写之争/2024年10月3日