• Contact: tech-userlevel
• Mentors: David Young
• Duration estimate: 3 months

Write a script that aids refactoring C programs by extracting subroutines from fragments of C code.

Do not reinvent the wheel: wherever possible, use existing technology for the parsing and comprehension of C code. Look at projects such as sparse and Coccinelle.

Your script should work as a filter that puts the free variables at the top, encloses the rest in curly braces, does something helpful with break, continue, and return statements.

That's just a start.