Avoid using lookbehind assertion in regex

[Yash-Singh1]

Initial checklist

• I read the support docs
• I read the contributing guide
• I agree to follow the code of conduct
• I searched issues and discussions and couldn’t find anything (or linked relevant results below)

Affected package

mdast-util-gfm-autolink-literal

Steps to reproduce

Currently the email search regex uses a lookbehind assertion, which unfortunately doesn't support older iOS versions <=16 (https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Regular_expressions/Lookbehind_assertion), meaning that users would run into errors with this. I currently patch out this regex, but I thought it would be helpful for others if this package did some workaround to lookbehinds here.

mdast-util-gfm-autolink-literal/lib/index.js

Line 135 in ba83f42

[/(?<=^|\s|\p{P}|\p{S})([-.\w+]+)@([-\w]+(?:\.[-\w]+)+)/gu, findEmail]

Actual behavior

Lookbehind assertion causes error

Expected behavior

Lookbehind assertion avoided because it doesn't support older iOS

Runtime

iOS/Safari 16

Package manager

N/A

Operating system

N/A

Build and bundle tools

Next.js

[ChristianMurphy]

Duplicate of #10