How to prevent DOI/URL in bibliography from becoming a #link?

[akoller]

Hi all,

I am the author of blinky, a Typst package that typesets the titles of references in a bibliography as hyperlinks.

I would like to make use of the recently improved regex show rules in Typst to greatly simplify blinky. The one thing that is holding me back is that Typst renders the URL and DOI fields of a bibtex entry as a link element. This keeps me from matching the URL or DOI with a regex.

Does anyone know of a way in which I can get Typst to simply render the URL as an ordinary string rather than a link? I’m happy to make changes to the CSL file, but as far as I can tell, this design decision comes from Typst and not CSL.

Thank you!

Best,
Alexander.

[PgBiel]

Hey @akoller, welcome! I’ve changed your title to better fit our question posting guidelines: How to post in the Questions category

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@akoller

The one thing that is holding me back is that Typst renders the URL and DOI fields of a bibtex entry as a link element. This keeps me from matching the URL or DOI with a regex.

Could you show an example of what you are trying to do please?

@akoller

Does anyone know of a way in which I can get Typst to simply render the URL as an ordinary string rather than a link?

You can use e.g.

#show bibliography: it => {
  show link: it => it.body
  it
}

But perhaps that isn’t necessary, depending on what you are attempting to do.

[akoller]

Thank you for the quick response!

Here’s an example of what I mean:

#show link: set text(blue)
#let bibstr = "@inproceedings{paperkey, title = \"Paper title\", author = \"Author1 and Author2\", booktitle = \"Proceedings of Conf\", year = \"2020\", url=\"https://aclanthology.org/2020.acl-main.463\"}"

#let bib_re = regex("(?s)!!BIBENTRY!([^!]+)!([^!]+)!!")
#show bib_re: it => {
    let (a,b) = it.text.match(bib_re).captures
    [(#a) (#b)]
}

This works: !!BIBENTRY!title!url!!

This does not work: #hide([@paperkey])

#bibliography(bytes(bibstr), style: "association-for-computational-linguistics-blinky-0.2.csl")

You will need this CSL file to make the example work.

The intended behavior is for the regex to match strings of the form !!BIBENTRY!(URL)!(title)!! and convert them into Typst links of the form #link(URL)[title]. I have simplified this for the example to just breaking the matched string up into the two pieces.

This works when a string matching the pattern occurs literally in the Typst source code. But when I compose the string in the CSL rule, Typst makes the URL into a link, and the regex no longer matches.

I tried the show rule from your comment, and that didn’t apply to the URL link in the example; it stayed a link. I was hoping that I could get Typst to simply not make the URL into link in the first place.

As an alternative solution, I was thinking that if the URL in the bib entry must be a link, perhaps I could locate the link elements in the bibliography and then look up the paper title with after, but if I understand the documentation right, you can’t select for unlabeled content at the moment. So that won’t work either.

I would be very grateful for any ideas anyone might have.

[akoller]

By sheer coincidence, it looks like they’re having a conversation about the exact same question in this other thread right now. I can reproduce the way that Philipp solved the issue – I’ll go and try to understand the difference.