3/23/2023 0 Comments Fonts with heart glyphsWhy are emoji rendered as images then? Well, bitmap fonts. When you type “?”, the computer sees U 1F335. When you type “A”, the computer sees U 0041. That’s why emoji behave like any other letter: they can be typed in a text field, copied, pasted, rendered in a plain text document, embedded in a tweet, etc. Most of them are grouped in U 1F300–1F6FF and U 1F900–1FAFF. ![]() At their simplest, they are just that: another symbol in a Unicode table. Out of those 2 million, actually defined are ~150k characters.ġ50k defined characters cover all the scripts used on ?, many dead languages, a lot of weird stuff like ????? ???????, sɹǝʇʇǝl uʍop-ǝpᴉsdn, GHz as one glyph: ㎓, “rightwards two-headed arrow with tail with double vertical stroke”: ⤘, seven-eyed monster: ꙮ, and a duck:Īs a side note, definitely check out the Egyptian Hieroglyphs block (U 13000–U 1342F). Sorry, programmers, 21 is not a multiple of 8 ?. Unicode allocates 2²¹ (~2 mil) characters called codepoints. The most popular encoding we use is called Unicode, with the two most popular variations called UTF-8 and UTF-16. In that case, use this text version: ¯\_(ツ)_/¯ Intro to UnicodeĪs you might know, all text inside computers is encoded with numbers. Warning: some emoji might not display as expected on your device. ![]() I thought it might be fun sharing a few nitty-gritty details of how this “biggest innovation in human communication since the invention of the letter ?️” works under the hood. For the past few weeks, I’ve been implementing emoji support for Skija.
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