Following the processing model of the language, it first locates the template rule for processing the root node of the input tree.
按照语言的处理模型，它首先查找处理输入树根节点的模板规则。
A model transformation rule description language is introduced. Some principles to be observed by model transformation rules are presented.
引入模型转换规则描述语言，给出模型转换规则应遵循的部分原则。
A design model of NC code complier based on ANother Tool for Language Recognition (ANTLR) was presented, which adopted the Extended Backus Naur Form (EBNF) to define the NC program syntax rule.
采用了扩展的巴科斯范式(EBNF)定义NC程序语法规则，提出了一种基于语言识别工具(ANTLR)的NC代码编译器的设计模型。
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