jcr <ffi.appdev-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> writes:

I find in Lua filters that I sometimes would like to know whether or not

I'm in a footnote. Currently, I'm trying to move punctuation before

footnotes. Given my citation style, I know that a Cite in body text will

produce a footnote, while a Cite in a footnote will not. So I want to move

punctuation before a Cite when it's not in a footnote. Since a filter

function for Inlines will descend into footnotes as well, there doesn't

seem to be any way to tell when the Cite is in a footnote.

[...] at least in the long term, I'd like to be able to tell whether

or not I'm in a footnote.

We just committed code[^1] that will help with this: it is now possible
to let the filter traverse the document top-down (root to leaves), and
to prevent processing of all element children by using `false` as a
second return value.

To exclude footnote contents from being processed, one can now use

   traverse = 'topdown'

   function Note (n)
     return n, false
   end

If you want to apply a *separate* filter in footnotes, you can write

   traverse = 'topdown'
   function Note (n)
     return n:walk(my_footnote_filter), false
   end

You should be able to try the feature after downloading the next nightly
build, which should become available at around 09:00 UTC.

[^1]: See https://github.com/jgm/pandoc/pull/7751/files

--
Albert Krewinkel
GPG: 8eed e3e2 e8c5 6f18 81fe  e836 388d c0b2 1f63 1124

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