Elixir parser and validator for PESEL numbers
PESEL is Polish national ID number. It has specific structure:
| Birth date | Serial | Sex | Control digit |
|---|---|---|---|
| 440514 | 014 | 5 | 8 |
Birth date in number has format yymmdd.
- for years 1800-1899 add 8 to month e.g. january is 81
- for years 1900-1999 month has 'standard' number e.g. january is 01
- for years 2000-2099 add 2 to month e.g. january is 21
- for years 2100-2199 add 6 to month e.g. january is 61
Even for girls odd for boys. Easy :)
To calculate control digit we need:
- calculate sum of numbers from position 1 to 10 (date, serial, sex) with weights.
- calculate modulo 10
- substract result from 10.
If result is 0 OR 10 if modulo gives 0 then PESEL is valid.
Weights for calculating CD:
| A | B | C | D | E | F | G | H | I | J |
|---|---|---|---|---|---|---|---|---|---|
| 1 | 3 | 7 | 9 | 1 | 3 | 7 | 9 | 1 | 3 |
iex> Peselx.validate("04231115629")
{:ok, "Valid"}To remember. Rules of branching:
master– branch is production.release-*– code where we developing next release.feature-*– optional branch for feature that is developer „on side”
Use merge --no-ff to close branch.
MASTER –
release-0.2.0 –
release-0.3.0 –
