[Feature Request] Support +define+foo=bar+fizz=buzz on command line

[infinitymdm]

The -Dfoo=bar syntax is great, and aligns well with tools like cmake, but doesn't match up with the industry standard +define+foo=bar syntax. +define also typically allows multiple defines in one long string.

[zachjs]

I'm a little hesitant to add another way to define macros. The current -D interface matches that of iverilog and the open source Yosys Verilog frontend; verilator supports both.

If there is interest, I would happily consider a pull request, though I think it may be a bit tricky to do with the command line parser that sv2v uses.

As a workaround, you could consider converting such strings before passing them to sv2v, e.g., sed -E 's/\+define//' | sed -E 's/\+/ -D/g'.

[infinitymdm]

If I ever decide to dabble in haskell you can expect a PR. At present though, I'll certainly make use of that workaround. Thanks!