Autoreplace content with rich content (hashtags to links to hashtags)

[Mitar]

Is there a way to autoreplace content with ricth/HTML content as user types it in? For example, if user types in an URL, I would like that this URL automatically becomes a link. If user types in a hashtag, I would like to automatically create a link to list of posts with that tag on my blog. If user mentions another user with @ then I would like to make a link to that user's profile page on my site. Sometimes I would like that the output text is not the same as input, for example, when you on GitHub link to a ticket with full URL, only project name and issue number are displayed, while still linking to the full URL. Same with link shorteners. Is this possible?

[Jakub Ś]

What you describe is very specific plugin or rather set of plugins that you would have to write on your own thus I will close this issue as invalid.

Some of these issues may be implemented in the future:

1. Autolinking was mentioned here: #7376 (we will re-discuss whether we should implement it)
2. "if user types in a hashtag" - something similar was mentioned in #9806