Add support for parsing complex license expressions

[xavierfigueroav]

Make use of the license-expression library to parse complex license expressions in SPDX documents. Signed-off-by: Xavier Figueroa [email protected]

[pombredanne]

@xavierfigueroav ping.... do you thing this could be rebased?

[xavierfigueroav]

@xavierfigueroav ping.... do you thing this could be rebased?

Hi, PhiIippe :) I've rebased the code.

[pombredanne]

I am keeping this around as this will eventually be merged.

[armintaenzertng]

@pombredanne, is this still valid? Do you know when the "eventually" you mentioned might be?

As this PR is quite massive, it will cause a lot of conflicts in the future.

[pombredanne]

@armintaenzertng your call. Parsing expression is a must have IMHO.

[armintaenzertng]

I'd like to see a rebase of this PR to get a better sense of what actually changed as the multiple merge commits make this rather incomprehensible.

@xavierfigueroav, are you willing to do this? Else I'll gladly take over from here :)

[nicoweidner]

Looking at the size, age and type of changes in this PR, I think the only viable course of action is to start from scratch based on current main and potentially use similar logic as in this PR (I didn't actually see the implementation details at first glance, since they are drowned in a sea of formatting changes...).

I will wait for a few days to see if anyone disagrees, then close this. The corresponding issue is https://github.com/spdx/tools-python/issues/10

[nicoweidner]

Closing this as announced earlier.