Remove trailing space in custom crossref prefix and name

[grasshoppermouse]

Description

Supplementary figures and tables are often numbered like so: Figure S1, Figure S2, Table S1, Table S2, and so forth (see attached image). The new custom crossref feature in the pre-release version of Quarto adds a space after the prefix and name, so the numbering comes out: Figure S 1, Figure S 2, ...

Is there a way to remove the space between the S and the number?

crossref:
  custom: 
    - kind: float # crossreferenceable elements with captions are `float`
      prefix: Figure S # used as the prefix for reference in output ("In Figure 1, ..")
      name: Figure S # used as the prefix for captions ("Figure 1: ..")
      ref-type: sfig # used as the prefix for the reference identifier ("In @fig-1, ...")

[cscheid]

Thanks for the question. It's a totally reasonable request and part of #4944 that we hadn't gotten around to. I added the feature just now, currently only tested in LaTeX and HTML. Once the test suite passes, this will be in our 1.4 pre-release.

We're still working on documentation, but here's how a minimal example will look:

--- title: Proposed syntax for custom crossrefs format: pdf keep-tex: true crossref: custom: - kind: float reference-prefix: Diagram caption-prefix: Diagram key: dia latex-env: diagram latex-list-of-file-extension: lod - kind: float reference-prefix: Table S space-before-numbering: false caption-prefix: Table S key: supptbl latex-env: supptbl latex-list-of-file-extension: lost latex-list-of-description: Supplementary Table --- ## Lists test ```{=latex} \listofsupptbls \listofdiagrams ``` ## Content ::: {#dia-1}  A diagram ::: See @dia-1. ::: {#supptbl-1} ```{=html} <table> <thead> <tr><td>a</td><td>b</td></tr> </thead> <tbody> <tr><td>1</td><td>2</td></tr> <tr><td>3</td><td>4</td></tr> </tbody> </table> ``` A caption. ::: See @supptbl-1.

Do note the changes on the YAML metadata.

[mcanouil]

@Crismoc are you using the 1.4 pre-release?

[Crismoc]

I updated to the pre release build 1.4.525 and using the code above I got the following:

ERROR: Validation of YAML front matter failed.
ERROR: In file test.qmd
(line 6, column 3 through line 20, column 50) Field "crossref" has value

custom:
  - kind: float
...
    latex-list-of-file-extension: lost
    latex-list-of-description: Supplementary Table

The value must instead be 'false'.
 5: crossref:
 6:   custom:
     ~~~~~~~~
 7:   - kind: float
   ~~~~~~~~~~~~~~~~
...
19:     latex-list-of-file-extension: lost
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
20:     latex-list-of-description: Supplementary Table
   ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
21: ---

ERROR: Render failed due to invalid YAML.

[mcanouil]

Please refer to documentation especially when looking at pre-release features: https://quarto.org/docs/authoring/cross-references-custom.html.

[cscheid]

I've now updated my example to reflect the latest 1.4 syntax. Please try again? Thanks!

[Crismoc]

Perfect, it works like in the example now. Thank you!

[grasshoppermouse]

Awesome, thanks so much!