C++ parser?

I wish to do some program transformation and analysis.

Is there any package that generates SymbolicC expressions from C code?

In a sense I'm looking for the inverse of the ToCCodeString function.

Is there some simple open source C (C++?) compiler whose AST representation would be easy to convert to this?

asked Aug 10 '16 at 12:44

masterxilo

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$\begingroup$ You can get SymbolicC for C code generated by mathematica by taking this route: reference.wolfram.com/language/CCodeGenerator/ref/… . The documentation of the SymbolicC package has something to say about why it doesn't do parsing: reference.wolfram.com/language/SymbolicC/tutorial/… under "Importing from C Programs" $\endgroup$ – masterxilo Aug 11 '16 at 19:33
$\begingroup$ Other directions to get started with this (probably very daunting) task are: clang.llvm.org/docs/IntroductionToTheClangAST.html and github.com/eliben/pycparser (the latter at least outputs to .json, but neither format is standardized). People say you are better off coding syntax-tree-level manipulations directly in C++ against the llvm syntax tree. $\endgroup$ – masterxilo Feb 12 '17 at 21:48
$\begingroup$ A useful set of references is also: stackoverflow.com/questions/7318935/… $\endgroup$ – masterxilo Feb 12 '17 at 21:57
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$\begingroup$ When I was searching for this in the past (a long time ago), I found tools that can convert to/from and XML based representation: en.wikipedia.org/wiki/SrcML (can't find where to download it anymore). Mathematica can import, manipulate, and export XML. Whether doing this will work well in practice, I do not know. I didn't actually go as far as to do meaninful transformations. $\endgroup$ – Szabolcs Feb 13 '17 at 9:16

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