Autodocumentation type functionality for Fortran?

Question

In the past I've used Doxygen for C and C++, but now I've been thrown on Fortran project and I would like to get a quick all encompassing look at the architecture.

In the past I've found reverse engineering tools to be useful where no documentation of the architecture exists.

So, is there a tool out there that will reverse engineer Fortran code?

I tried to use Doxygen, but didn't have any luck. I will be working with two different projects - one Fortran 90 and I think is in Fortran 77.

Thanks for any insights and feedback.

Answer 1

Tools which may help with reverse engineering:
SciTools Understand
Link with some more tools (search "fortran")

Also, maybe some of these unit testing frameworks will be helpful (I haven't used them, so I cannot comment on the pros and cons of any of them):
FUnit
FRUIT
Ftnunit
(these links link to fortranwiki, where you can find a tidbit on every one of them, and from there there are links to their home sites).