【摘要】 文［１］提出的文法分划是一个很重要方法。它不仅是我们构造语法分解自动生成系统ＸＹＺ／ＰＧ 的理论基础，而且对分划后文法使用ＬＲ方法生成的分析表状态数大为减少，因此使得ＬＫ方法 也能在内存较小的机器上成功地使用。对经分划后得到的子文法序列，我们使用顶下与底上相 结合的分析方法。本文对文［１］的各子文法之间的调用条件加以补充，并提出具体实施的步骤。更多还原

【Abstract】 Grammar partition is a basic theory on which the parser generator XYZ/PG is constructed. If each subgrammar Gi of grammar G generates parsing table by using LR parse, the sum of the number of states in all parsing tables will be much smaller than the number of states in the parsing table of gra mmar G. (At least, it is so for grammar C of programming language). Therefore, LR parse can be successfully performed in minicomputer of comparatively smell memory. Further, this paper has something added to the relation, i. E. the call condition among subgrammars and suggests the actual steps of implementation as well.更多还原