tootlab-mastodon/app/javascript/mastodon/features/compose/util/counter.js

const urlPlaceholder = 'xxxxxxxxxxxxxxxxxxxxxxx';

export function countableText(inputText) {
  return inputText
    .replace(/https?:\/\/\S+/g, urlPlaceholder)
    .replace(/(?:^|[^\/\w])@(([a-z0-9_]+)@[a-z0-9\.\-]+)/ig, '@$2');
};
Count all URLs in text as 23 characters flat, do not count domain part of usernames (#4427) * Count all URLs in text as 23 characters flat, do not count domain part of usernames * Add new status text counting logic to web UI 2017-07-29 00:06:29 +02:00			`const urlPlaceholder = 'xxxxxxxxxxxxxxxxxxxxxxx';`

			`export function countableText(inputText) {`
			`return inputText`
Simplify web UI character counter logic (#4463) 2017-07-31 15:19:48 +02:00			`.replace(/https?:\/\/\S+/g, urlPlaceholder)`
Count all URLs in text as 23 characters flat, do not count domain part of usernames (#4427) * Count all URLs in text as 23 characters flat, do not count domain part of usernames * Add new status text counting logic to web UI 2017-07-29 00:06:29 +02:00			`.replace(/(?:^\|[^\/\w])@(([a-z0-9_]+)@[a-z0-9\.\-]+)/ig, '@$2');`
			`};`