Logical expression on restrictions

[aaicoder]

Sometimes we need logical expression on bcat, badv, battr, etc on block/allow restriction fields, For example, IF advertiser = X THEN allow_category = A ELSE block_category = [B, C], such logic is difficult to be expressed in existing structure of block/allow fields.

One solution is to use vendor specified cattax to express a logical value on other cattax, but this seems overloading cattax when there are many logical expression to support. Another solution is to use new extension to logical expression. Wantted to hear what the community and IAB working group think for such use cases.