使用JavaCC解析C语法的源代码 [英] Source for parsing C grammar using JavaCC

问题描述

作为项目任务，我需要从Java解析纯C语法以生成AST输出.作为启动，我使用的是在

As an project assignment, I need to parse a plain-C grammar from Java to generate AST output. As a startup, I am using the file c.jj that I have found among grammar files at

http://java.net/projects/javacc/sources/svn/

但是我发现它仅具有语法和词法作用，而没有真正的语义来解析C源代码.还有其他一些来源，其中包含typedef，变量，构造函数，包含文件吗?

but I found that it only has syntactic and lexical actions and no real semantics for parsing C source. Is there some other source that incorporate typedef, variables, construct functions, include files?

推荐答案

您可以去寻找完整的语法.这样会学到很多吗?

You could go looking for a complete grammar. Will you learn much this way?

您可能会问您的讲师，哪个会给他们留下更深刻的印象:通过编写自己的规则或通过在Google上搜索替代完整规则来实现C语法的一小部分?

You could ask your lecturer which would impress them more: implementing some small subset of C grammar by writing your own rules, or by searching google for alternative complete rules?

我相信编写您自己的规则-甚至您自己创建的解析器-都会是一个更有用的练习.即使只解析表达式.

I trust writing your own rules - and even your own hand-crafted parser - will be more a more useful exercise. Even if its only parsing expressions.

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