Bengali Calendar (Ponjika)

Welcome to Ponjika and the year 2025. This crate will support many features relevant to the Bengali (Bangladeshi) calendar. Our goal is to minimize external resource dependency and safely compute Bengali dates, seasons, holidays, etc. If you have a feature idea that aligns with the crate's purpose, please create an issue with the tag [Feature] in the issue title. If you have found a bug, please create an issue with the tag [Bug] in the issue title.

FAQ

Q1: Can I create a Gregorian date and convert it to a Bengali date?

• First, you have to create an EnglishDate. For example: let date = EnglishDate::create_date(30, EnglishMonths::November, 2010);
• Finally, if your date is valid, you can get the respective Bengali date using: let bengali_date = get_bengali_date_from_gregorian(english_date);
• In both steps, the crate may return DateError for many different reasons including invalid date, arithmetic operation, casting, etc. So, make sure you do handle all the possible error cases.
• Example: examples/gregorianToBengali.rs.

Q2: Can I create a Bengali date and convert it to a Gregorian date?

• First, you have to create an BengaliDate. For example: let bengali_date = BengaliDate::create_date(3, BengaliMonths::Falgun, 1430);
• Finally, if your date is valid, you can get the respective gregorian date using: let english_date = get_gregorian_date_from_bengali(bengali_date);
• In both steps, the crate may return DateError for many different reasons including invalid date, arithmetic operation, casting, etc. So, make sure you do handle all the possible error cases.
• Example: examples/bengaliToGregortian.rs.

Fuzzing

The project currently support afl.rs fuzzing. Take a look into fuzz directory. To run the fuzzer:

cd fuzz
cargo afl build
cargo afl fuzz -i in/english_create_date -o out/english_create_date target/debug/test_english_date
cargo afl fuzz -i in/bengali_create_date -o out/bengali_create_date target/debug/test_bengali_date

License

This project is licensed under GPL-3.0.