Validating ProForma

[acesnik]

No description provided.

[acesnik]

1. Check for legal syntax
2. Check that the syntax is logically correct (e.g. prefix tag should not be used with other keys in the sequence)

[acesnik]

It looks like this is actually pretty polished up to the parsing of ProteoformGroup objects. What's next?

• We're not validating the modification sites... should we check to see that the amino acid target makes sense for the modification?
• Should we create a ProteoformFactory, that can generate possible proteoforms given a proteoform group? This would allow us to consider the ambiguity descriptors.