GFF3 validator

[ktretina]

We have talked before about writing a script to confirm full gff3 format agreement, and I have found someone else's attempt at doing this (link below). This might be a good reference if we plan on writing such a script ourselves.

http://modencode.oicr.on.ca/validate_gff3_online/validate_gff3.html

[jorvis]

Thanks for submitting this. You're right, that implementation's documentation is a good starting point, though it allows a lot of room for expansion. It doesn't check anything about encoding conventions for different feature types that the GFF3 specification describes, for example, such as for matches or gene models.