[][src]Crate base2048

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base2048 encoding for packing data into tweets!

This is an experimental module for encoding chunks of 11 bits into a single character as counted by twitter. This allows you to encode 385 (280 * 11 / 8) bytes in tweet. The api will probably remain the same but the encoding may very well change! YMV.

I've put a bit of effort into making sure all the characters used are visible to people running with standard font packages on most platforms. please open an issue with info about your device/OS if a character is not showing properly (e.g. you see a box looking thing). See base2048.txt for the ordered list of characters.


base2048 = "0.2"


// these 189 will never fit in a tweet encoded as hex
let bytes = hex_literal::hex!("0100000001574981a3fb74e6632493fcab62947b07a6c228c2b9d840893ff1e7c4f143723c010000006a47304402201f2fc511e390f5dcecf5f0fcb627faff9c0acec671bf372c49e30b43cab048ff02200a10eefea2f2c7b1c5a1603b73dc4d3175b9a416db0acfedf9bf443c0be219c90121031132f6c2139c199a18bfe1fb7f7eb5d1daaf8d4d2e03bf11e833a13e62268fb5ffffffff01eda54e020000000017a914582e495bd15671cc7344ff54104a4d3e6468fff08700000000");

// but with base2048 you can fit it - twice!
let encoded = base2048::encode(&bytes[..]);
assert_eq!(encoded, "ŐØØŝقగސץແȑɯၻଥѩཛသఢшચબƌইಖၵဂȤމŘØʼnਠະиǐƆԛҧဆжணལણБדڿۀ؎ӭಋހഐӣॵܡǁӏџၦݑǩƿڼݯӦસͰӟٹІɼಆମভଫదআภมǏۍโകКШΟछෂЫरഇܥۀɅఌგஏලڥҹӿϷݘঐؾЋǑবא٭٭ნЅৎ؋ۂØØƦযݩΆѮယઌȮϥǧཌNJҲқಠސၯȨØØØ");
assert_eq!(base2048::decode(&encoded), Some(bytes.to_vec()));

Previous Work

This was inspired by the javascript module base2048 but they are not compatible. The main difference is the character list is more curated here to display properly on each platform.





Decode a base2048 encoded string


Encode some bytes using base2048 encoding