Collecting my attempts to improve at tech, art, and life

Emoji Breakdowns With Raku

Tags: raku-lang

console display of female surfer emoji broken down into its different code points
If you think that's weird, you should see what all these emoji have done to my neovim session.

Had to share, but gotta make this quick because I am about three tangents removed from the stuff I planned to do today. This Raku script prints out code points for emoji characters with a little help from Pretty::Table.

#!/usr/bin/env raku

use Pretty::Table;

sub emoji-table(Str $emoji) {
  my $table =
    title => "Emoji Breakdown",
    field-names => [
      "Hex Code",
    border => False,
    align => %(
      Code => "r",
      "Hex Code" => "r",

  for $emoji.ords -> $ord {
    my $chr = $ord.chr;
    $table.add-row: [

  return $table;

sub MAIN(Str $emoji) {
  say "";
  say emoji-table($emoji);

And here’s what it looks like in action:

bsh โฏ rakumoji ๐Ÿฆ‹

| Emoji Breakdown |
    Name      Code  Hex Code  Emoji
 BUTTERFLY  129419     1F98B    ๐Ÿฆ‹


So I’m doing a thing with a CSS stylesheet involving display of emojis. You don’t want the emoji in a stylesheet though. More portable to use code points, the numeric value or values a computer uses to identify the character.

The problem: I don’t know the code point. I use a convenient emoji picker. All it gives me is a character.

I’ve had some luck looking this stuff up online. But why spend 10 seconds looking it up when I could spend half an hour writing code and another hour rationalizing my decision in a blog post?

Str.ord gets me the ordinal for a single character. That’s not always what I need though. What looks like a single character could be composed of several codepoints.

Unicode is weird.

Str.ords gives me a list of all code points in the string, whether one or several. I get the name of the emoji as well with str.uniname. I can use that name with Str.uniparse to get the emoji again.

bsh โฏ raku -e 'say "butterfly".uniparse;'

Pretty::Table makes it look nice โ€” or as nice as my terminal can manage โ€” no matter how many code points are in the emoji.

bsh โฏ rakumoji ๐Ÿ„โ€โ™€๏ธ

| Emoji Breakdown |
          Name            Code  Hex Code  Emoji
         SURFER         127940     1F3C4    ๐Ÿ„
   ZERO WIDTH JOINER      8205      200D    โ€
      FEMALE SIGN         9792      2640    โ™€
 VARIATION SELECTOR-16   65039      FE0F    ๏ธ

I helped the terminal out by putting the emoji character at the end of each line. Otherwise the pretty table layouts get offset weird.

Anyways I had fun. And now I’m only two tangents away from the day’s intended tasks.

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Added to vault 2024-01-15. Updated on 2024-04-01