Re: Detectiing footnotes in Lua scripts

[FI Apps <ffi.appdev-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

The particular case I’m dealing with is fixing a long and complex text that followed an Italian style in placing punctuation after footnotes, even though the text is in English. The script is a one-off, but since there are over 1000 footnotes, fixing it with a script is the easiest solution. Since I’m using BibLaTeX, I could tell it to move punctuation for footnotes generated with Cite, but it just swaps the footnote and the punctuation: it doesn’t move periods or commas into quotes that may precede the footnote.

The first time I wrote a script that needed to know if it was in a footnote, I resorted to the solution you suggest: I wrote a filter function for Note and used walk_block. But since this is the second script that wants to know whether or not it’s in a footnote, I thought I should mention this as a desideratum for the future.

> On 24 Nov 2021, at 18:59, John MacFarlane <jgm-TVLZxgkOlNX2fBVCVOL8/A@public.gmane.org> wrote:
> 
> 
> This is a limitation of the current architecture -- there's no
> way to determine the "parent" context.  Sometimes you can work
> around this by using walk_block to do a transformation inside
> a particular kind of block (e.g. a footnote) -- but in this
> case you want to do the transformation OUTSIDE of the block,
> and that's more difficult.
> 
> Doesn't pandoc's --citeproc do this punctuation moving for you
> (in the case of citations automatically added as footnotes)?
> If not, try setting `notes-after-punctuation` as described in
> the manual.
> 
> (If you are talking about footnotoes you insert explicitly,
> instead of citations that become footnotes, then this doesn't
> apply, but in that case why would you need to adjust the
> punctuation?)
> 
> 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.
>> 
>> In this particular case, I can work around the limitation because any Cite 
>> in a footnote will either be the first element or will have a Space before 
>> it. So with that assumption, I can look for the last innermost element 
>> before the Cite and check its type: if it's a Str,  can append the 
>> punctuation to it and delete the punctuation from where it was. if it's a 
>> Space, I do nothing, because I must be in a footnote. However, at least in 
>> the long term, I'd like to be able to tell whether or not I'm in a footnote.
>> 
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