index.qmd in book projects

[fredguth]

I am building a Quarto Project type that inherits from book. The idea is to build a book and a website for the book at the same time.

I don't know what to do with index.qmd which is necessary for the website but not for the pdf. I couldn't find a way to ignore index.qmd for pdf format.

I tried:

:::{.content-hidden when-format="html"}:::
# Preface
:::
:::{.content-hidden when-format="pdf"}:::
# Welcome
:::

but Preface appears as the page title in the website top level ToC (error in website).

If I invert:

:::{.content-hidden when-format="pdf"}:::
# Welcome
:::
:::{.content-hidden when-format="html"}:::
# Preface
:::

now, ToC shows Welcome that should be ignored by pdf. ¯_(ツ)_/¯

I guess the problem here has something to do with the fact that Welcome is the first top level section despite being inside a content-hidden block. Welcome is the title of the page, not Preface.

[dragonstyle]

Books are special, unfortunately, since we do special processing on titles (we capture the first H1 as the title of the page). The root issue is tracked here:

#1108