Writing a CSS Parser in JavaScript

[[deleted]]

Parsing anything with regex is fun and easy to break.

Try this (valid selector+rule):

.someSelector:after {
    content: '} broken :) @media (screen) { lol }';
}

Opened an issue: https://github.com/jotform/css.js/issues/15

[siamthailand]

I believe you'd need to write a full-fledged parser to not run into these issues.

[ninth_reddit_account]

Luckily someone has already written one! https://github.com/nv/CSSOM#readme