Hi all, I need to port this from JavaScript to Elixir: /[\0-\uD7FF\uE000-\uFFFF]|[\uD800-\uDBFF][\uDC00-\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\uDFFF])|(?:[^\uD800-\uDBFF]|^)[\uDC00-\uDFFF]/ When I try: Regex.compile!("[\0-\uD7FF\uE000-\uFFFF]|[\uD800-\uDBFF][\uDC00-\uDFFF]|[\uD800-\uDBFF](?![\uDC00-\…

Looks like you are trying to find surrogate pairs? Elixir uses UTF-8 strings and that is AFAIK not allowed to contain surrogate pairs, so binaries containing them would not be valid strings. And since Regex operates on Elixir strings, it does not make sense to ask it to find them. What is the actua…

Thanks! What is the actual thing you are trying to accomplish here? I need to linkify plain text links into html. I’m trying to port GitHub - markdown-it/linkify-it: Links recognition library with full unicode support · GitHub .

Where is that regex there? I think you can avoid running it if it only tries to detect and skip surrogate pairs (since they can’t be in Elixir strings), but would be nice if someone more knowledgeable than me replies also. :slight_smile:

Where is that regex there? https://github.com/markdown-it/linkify-it/blob/master/lib/re.js#L8 https://github.com/markdown-it/uc.micro/blob/master/properties/Any/regex.js I think you can avoid running it if it only tries to detect and skip surrogate pairs (since they can’t be in Elixir strings)…

Perhaps this could be useful? [image] auto_linker AutoLinker is a basic package for turning website names into links.

Thanks! Looks good, but too simple for my case (doesn’t support urls with http://, internationalized domain names, etc).

[image] egor: Thanks! Looks good, but too simple for my case (doesn’t support urls with http:// , internationalized domain names, etc). Perhaps a set of PR’s to buff it up could be useful? It could be a great generic library for handling such things. :slight_smile:

Opened a PR: Formatter and TLD validation by minibikini · Pull Request #1 · smpallen99/auto_linker · GitHub

[image] egor: Opened a PR: https://github.com/smpallen99/auto_linker/pull/1 Ooo very cool, hope it gets accepted soon!

How to port this regular expression from JavaScript

Questions & Help Questions

OvermindDL1 January 31, 2019, 4:46pm 6

Perhaps this could be useful?