This would be a good idea of it was reliable however browsing the parsed data for the BMP280 [1] (which in familiar with because I’ve written a driver for this) it looks like it misses a bunch of registers [2]
Thanks for catching this. Some of the datasheets were parsed before major improvements were made. I plan on updating all the parsed pdfs to reflect these changes soon. I've since updated the linked datasheet to be more up to date. It has much more registers. Things are still very much a work in progress.
If DigiKey or Octopart had their act together they'd create a subscription service for $1/month or something like that and offer compiled maps for every part they carry.