emojIDs

README.md

EmojID

The function emojid() deterministically converts hexadecimal strings (like sha1sum, md5sum, uuid4, uuid5) into emoji containing strings, remojid() converts back.

Implementations in Javascript and Python are provided.

What for?

¯\_(ツ)_/¯

How it works

The code will in each step

• take the value of 2 hex chars
• add a "magic" offset (U+1F400) to it
• convert it to unicode

There is a bit of tolerance built in: Non hex chars will be ignored and simply be added to the result. But I wouldn't push it too hard.

Examples

md5
emojid(42eab827e162899feb01af513c39be46) =>👂📪💸🐧📡👢💉💟📫🐁💯👑🐼🐹💾👆

shasum
emojid(d50aabf4b2f62569b976a4b16d6dfc86750499a7) => 📕🐊💫📴💲📶🐥👩💹👶💤💱👭👭📼💆👵🐄💙💧

git short hash
emojid(21132ad) => 🐡🐓🐪d 

uuid4
emojid(f6e3299a-525a-4c5f-bebc-ef014b608a66) => 📶📣🐩💚-👒👚-👌👟-💾💼-📯🐁👋👠💊👦

reverse
remojid(🐡🐓🐪d) => 21132ad

emojid.js

function emojid(id) {
    let word = '';
    let res = '';
    id.toLowerCase().split('').map(c => {
        word += c;
        if(c.search(/[0-9a-f]/) === -1) {
            //flush
            res += word;
            word= '';
            return;
        }

        if (word.length === 2) {
            res += String.fromCodePoint(0x1F400 + parseInt(word, 16));
            word = '';
        }
    });
    return res + word;
}

function remojid(emojid) {
    return [...emojid].map(c => {
        const intVal = c.codePointAt(0) - 0x1F400;
        const hexVal = intVal.toString(16);
        const pad = hexVal.length < 2 ? '0' : '';
        return intVal > 0 ? pad + hexVal : c;
    }).join('');
}

console.log(emojid('6777576b-3216-444e-960b-20a07bd6c352'));
console.log(remojid(emojid('6777576b-3216-444e-960b-20a07bd6c352')));

emojid.py

import re

def emojid(id):
    word = ''
    res = ''

    for c in list(id.lower()):
        word += c
        if re.search("[0-9a-f]", c) == None:
            #flush
            res += word
            word = ''
            continue

        if (len(word) == 2):
            ucode = 0x1F400 + int(word, 16)
            res += unicode('\U000%x' % ucode , 'unicode-escape')
            word = ''

    return res + word

def remojid(emojid):
    res = ''
    for c in emojid:
        intVal = ord(c) - 56320
        if intVal == -963: continue
        if intVal < 0:
            res += c
            continue

        res += "%02x" % intVal

    return res

print emojid('6777576b-3216-444e-960b-20a07bd6c352')
print remojid(emojid('6777576b-3216-444e-960b-20a07bd6c352'))