Validation of Bulgarian VAT (and non-VAT) ID numbers based on checksum

[yolk]

Validation of Bulgarian VAT (and non-VAT) ID numbers based on checksum

[yolk]

Hi Kirichkov,

first thx for your locale contribution! I just pulled it in and release v0.4.5 of valvat.

Could you provide some example code that validates bulgarian VAT numbers? What I don't understand at the moment: what additional functionality does it provide compared to the existing regular expressions?

I could imagine integrating something like this if it helps in validating bulgarian VAT numbers offline; but I don't want to add functionality to validate other ID numbers. I think valvat should focus on european VAT numbers only.

Thanks anyway & best to Bulgaria!

[kirichkov]

Currently any 9 or 10 digit number will be considered valid if it's given as a bulgarian ID. The bulgarian ID numbers (both company and personal) have a checksum integrated. When you generate and compare the checksum digit (the last digit of the ID) you can have a "higher certainty" that the given number is indeed valid. Of course it won't mean that the ID number actually exists.

I'll port my code and make a pull request and you can decide whether or how to integrate the code.

[yolk]

Thanks for the details and working on a pull request.

I just started working on a checksum branch, which implements some checksum-checks for several countries, based on algorhytms I found at http://www.pruefziffernberechnung.de/U/USt-IdNr.shtml (only german) and http://sima.cat/nif.php

The work is not complete and I have to perform some additional tests against local data to verify the correctness of this new feature before merging it to the master branch. But maybe you can add your check for bulgarian numbers to this branch via a pull request?

Thx!

[kirichkov]

I shall! I will try to adhere to your coding as much as I can. I'll probably have some time over the weekend to implement it.

[kirichkov]

I just sent a pull request and I want to make a quick note that the algorithm for generating the checksum of Bulgarian company IDs mentioned in http://sima.cat/nif.php is wrong.

[yolk]

Just merged it in and released it with valvalt 0.5

Thx again!