Having Number and Version in Title Page PDF - Quarto book render PDF

[martinlardi]

project:
  type: book

book:
  title: "quarto Title"
  subtitle : "this is subtitle"
  number : "Report Number xxx"
  version : "Version 1.0.1"
  author : "person1"
  chapters:
    - index.qmd

format: pdf

editor: visual

In the title page on PDF, I want to have "Report Number xxx" and "Version 1.0.1" in between subtitle and author. How do I do that ?

[rgaiacs]

Thanks @martinlardi for the question. To add the report number and the version you will have to use partial templates. See the documentation at https://quarto.org/docs/journals/templates.html#latex-partials.

[martinlardi]

_quarto.yml

project:
  type: book

book:
  title: "quarto Title"
  subtitle : "this is subtitle"
  number : "Report Number xxx"
  version : "Version 1.0.1"
  author : "person1"
  chapters:
    - index.qmd

format:
  pdf:
    template-partials:
      - title.tex

editor: visual

title.tex

\title{$title$}
\subtitle{$subtitle$}
\number{$number$}
\version{$version$}
\author{$for(author)$$author$$sep$ \and $endfor$}

It gave me an error :

compilation failed- error
Missing number, treated as zero.
<to be read again> 
                   {
l.147 \number{
              } 

How do I add variable "number" and "version" to title.tex from _quarto.yml ? am I approaching this incorrectly ?

[cderv]

Just for context: You cannot unfortunately create any variable you want under the book key. It has a private schema and is protected to avoid potential conflict with any potential value or future value under book used by Quarto. Though it should accept any value from the CSL schema and number and version should be part of it. To use them try $book.version$ and $book.number$

See discussion at #2148 for more about this.