Simple source translation tool?

[Mihai Christodorescu <mihai@xxxxxxxxxxx>]

Hi!

	I am looking for a simple tool that would allow me to perform program
transformations (from source to source), on C, C++, and Java. The
transformations I am thinking of are (mostly) orthogonal to existing code,
such as:

* insert the code:
	printf( "<function name>\n" );
  at the beginning of each function in the source file
  or at the exit point(s) of each function in the source file

The tool would preferably be a library for reading in the source to some
kind of AST which I can process/modify and dump to output. Or maybe a tool
similar to Yacc/bison, that comes with grammars that build ASTs (there
should be something like this out there, after 20+ years of PL research!)
	I am not looking for efficiency, but rather ease of use (of course, if it
takes 2 hours to run the transforming program on some input source file,
then it is no good).
	To this effect, I found something called SAGE++. Before I delve in it, I
would like to ask you whether you know of any other tools for source code
transformation, that parse C, C++, and Java, and are accessible from C, C++,
or Java (i.e. a tool written in Lisp is nice, but not useful to me, for
now!).

Thanks,

Mihai

PS. BTW, does anyone know of a yacc/bison C++ grammar? I was told that C++
is not easily yacc-able due to ambiguities in its definition...

-- 
 Mihai Christodorescu -=- mihai@xxxxxxxxxxx - http://www.cs.wisc.edu/~mihai
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