Towards automatical migration of transformation rules after grammar extension

Seventh European Conference onSoftware Maintenance and Reengineering, 2003. Proceedings. Pub Date : 2003-03-26 DOI:10.1109/CSMR.2003.1192408

Wolfgang Lohmann, G. Riedewald

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引用次数: 20

Abstract

The paper addresses two problems in software maintenance. Firstly, some maintenance tasks require modifications of the grammar. A change in a grammar can make abstract syntax and transformation rules outdated, which then themselves become subject to a maintenance process. Secondly, it is essential that after a repair programs look as much as possible as they looked before. Especially comments and principle readability by humans are indispensable for further maintenance. We argue that necessary changes of both abstract syntax and transformation rules due to grammar extension can be made automatically. Thus, most of the original rules can be reused. The approach can be used to define and use simplified views on complex patterns to be analysed with transformation rules. To give an example we apply the described technique to rule-based program transformations extended with partial layout preservation. The migration relation is given. The programmer uses common rewriting techniques for program transformation without taking care of layout, which then is automatically included.

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实现语法扩展后转换规则的自动迁移

本文讨论了软件维护中的两个问题。首先，一些维护任务需要修改语法。语法中的更改可能会使抽象语法和转换规则过时，然后它们本身就会受到维护过程的影响。其次，重要的是，维修后的程序看起来尽可能多，因为他们看起来之前。特别是注释和人类的可读性原则对于进一步的维护是必不可少的。我们认为，由于语法扩展，抽象语法和转换规则都可以自动发生必要的变化。因此，可以重用大多数原始规则。该方法可用于定义和使用要用转换规则分析的复杂模式的简化视图。为了给出一个例子，我们将所描述的技术应用于扩展了部分布局保存的基于规则的程序转换。给出了迁移关系。程序员使用常见的重写技术进行程序转换，而不考虑布局，然后自动包含布局。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Seventh European Conference onSoftware Maintenance and Reengineering, 2003. Proceedings.

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