Unicode

Creator

Creator

Seonglae Cho

Created

Created

2020 Jul 20 0:26

Editor

Editor

Seonglae Cho

Edited

Edited

2025 Feb 13 16:48

Refs

Refs

Unicode is locale-dependent

for some operations and for rendering. ||lll|l||||IIII||||llll||

Unicodes

Unicode Notion

Unicode Equivalence

Halfwidth and Fullwidth Forms

Unicode Zero width space

Unicode Surrogate

notion image

notion image

notion image

The Absolute Minimum Every Software Developer Must Know About Unicode in 2023 (Still No Excuses!)

Modern extension to classic 2003 article by Joel Spolsky

The Absolute Minimum Every Software Developer Must Know About Unicode in 2023 (Still No Excuses!)

https://tonsky.me/blog/unicode

Data sumggling

Smuggling arbitrary data through an emoji

With ZWJ (Zero Width Joiner) sequences you could in theory encode an unlimited amount of data in a single emoji.

Smuggling arbitrary data through an emoji

https://paulbutler.org/2025/smuggling-arbitrary-data-through-an-emoji/

Smuggling arbitrary data through an emoji

Recommendations

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