india-pincode-regex/HACKING.md

Generating the regex

1. Download the latest CSV file from https://data.gov.in/node/85839/download or https://data.gov.in/resources/all-india-pincode-directory.
2. Copy all the pincodes to a pincodes.txt file
3. Generate all unique pincodes by running sort -u pincodes.txt > /tmp/pin.txt
4. npm install
5. node src/generate.js /tmp/pin.txt > regex.txt

PHP Release

1. git tag 1.2.3
2. git push --tags