This transformationgrammar can be used to describe the formal transformation between programming languages.
使用这种转换文法，可以描述程序语言之间的形式转换。
2
According to this transformationgrammar, a program transformation algorithm can transform source language programs into object language programs.
程序转换算法根据转换文法，可把源语言程序转换为目标语言程序。
3
In this Paper, two new semantic description grammars-Attribute Traa? Formation grammar ATG and Normalized Ordered Attribute Transformationgrammar NOATG are presented.