Highlight range in files links

Problem to solve

When linking to a file, it's possible to select a line and give a link to the hightlighted line:

https://gitlab.com/account/project/path/to/a/file#L42

Though there's a nice behaviour in github to create a link to a range of code instead of a single line with a link as follows:

https://gitlab.com/account/project/path/to/a/file#L42,L69

here's how it looks like on github: https://github.com/guyzmo/git-repo/blob/devel/git_repo/repo.py#L580,L587

Intended users

anybody that can read a file online

Further details

Makes it easier to highlight a block of code or a function, when referring to it and share it with others.

Proposal

I have no suggestion on how to expose this in terms of UX (might be: click once, select a line, click on another line select a range, click on yet another line, cancel the selection, and select that line). But I guess you guys have betten UX ideas than I might have!

Github did not solve the UX side, the feature is only available through editing the address bar. And I miss it regularly on gitlab!

Permissions and Security

it's pure UI, so anybody who can read a file online.

Documentation

not sure

Testing