C-code navigation via cscope

[grekhss]

I tried to use ctags for code navigation and everything was nice until I tried the code of L4 microkernel. There is a lot of complex declarations and ctags appeared to have troubles parsing them correctly. After a number of attempts to figure out input args for ctags, I decided to use cscope. It parsed everything perfectly.
I thought that use of cscope in mcedit for code navigation would be a great option. I did not investigate the complexity of adding support of cscope, but I hope that existing code from ctags support can be used.
Thanks in advance.
Sergey Grekhov.