Hi all,
I wrote a ref show rule to be able to link to strong and emph elements, as I intermittedly use them for subsections. Now, I do have something that seems to work as it should, but it frankly looks like a mess and I have to believe there is a much better way to do this. I tried my best but things like context and query-ing are not really clicking just from reading the reference, so I thought I’d ask if anyone here knows of a better way to write this rule?
I wanted to achieve the following behaviour:
-
If referencing an element that is under the same heading, only display a supplement “section” and its body.
-
If referencing an element that is under a different heading, display the heading supplement and its number as well as “section” and its body.
Here’s an example:
#set text(font: "Source Sans Pro", size: 10pt, lang: "EN")
#set heading(numbering: "1.1", supplement: "Chapter")
= Heading 1
*Subsection 1* <sub-1>
This section has a reference to the following subsection (see @sub-2)
*Subsection 2* <sub-2>
This section has a reference to a subsection outside of its own heading (see @sub-outside)
= Heading 2
*Subsection* <sub-outside>
With result:
Here is what I have now:
#show ref: it => {
let el = it.element
if el == none or (el.func() != emph and el.func() != strong) { return it }
let heading_at = counter(heading).display(at: el.location())
let heading_here = counter(heading).display(at: here())
if heading_at != heading_here {
let heading_name = query(selector(heading).before(el.location())).last().supplement
return link(el.location(), [#heading_name #heading_at section #el.body])
}
link(el.location(), [section #el.body])
}
Any help would be greatly appreciated! Feel free to leave some links behind to reference pages if applicable. Thank you!