Doxygen requirements tracking / inverse matrix

Question

I use a custom Doxygen tag to track requirement implementations in my software source code, like so :

/// @req REQ-BLAH-0010

The @req tag is defined in my doxygen.conf file:

ALIASES += "req=\xrefitem req \"Requirement\" \"Requirements\" "

This works, Doxygen generates a list of requirements for each method/class/file. But sometimes the same requirement number is used in different places, and I'd like a way to get the inverse list: for each requirement number, list all the places in which it is tracked.

Is this possible to do using Doxygen? If so, how? If not, what tool would you recommend for this?

Answer 1

Many years ago, I did something like this using a Perl program to process my source-code.