Expression parsing in C

Question

Is there a tool that helps you visualise how a C expression is parsed. In other words can someone see the expression tree

Are you looking for a C expression parser *in C* or will any language do? — Matti Virkkunen, Jul 29 '11 at 08:33
Any language would do, although a GUI showing the expression tree would be fantastic. — shreyasva, Jul 29 '11 at 08:34
possible duplicate of [AST from C code](http://stackoverflow.com/questions/239722/ast-from-c-code) — Aaron Digulla, Jul 29 '11 at 08:34
I doubt that this is a duplicate of [AST From C Code](http://stackoverflow.com/questions/239722/ast-from-c-code). This question explicitly asks about **visualization** (of the AST), the other does not. The OP might want to indicate this by adjusting the question's title. — Christian.K, Aug 08 '11 at 08:11

score 2 · Answer 1 · answered Jul 29 '11 at 09:52

2

You can give ANTLR a try, it has a nice front-end(ANTLRWorks) for visualization and there is a c99 for it avialable from the same site.

It will probably take a little work to visual things as you want them, but all the tools are already there.

answered Jul 29 '11 at 09:52

Necrolis

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score 0 · Answer 2 · answered Aug 10 '11 at 18:31

Take a look at ROSE. I have found that making it work was a bit cumbersome -- not the easiest piece of software to build from sources, and I doubt they have a binary release. There are a set of tools and library support for making pdf/graphviz dump of the AST. And then there's a tool called roseQt which you might find useful.

Expression parsing in C

2 Answers2