Re: Changing LaTeX output for citations inside footnotes

[Lyndon Drake <isenguard-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

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Hi Sukil,

Thanks, you were quite correct about the second problem. I've amended that 
and it now works, at least in the sense that it is altering the output in 
the general way I want.

On the first problem, I can just pandoc.stringify the prefix and suffix, 
and concatenate. The problem with that is I will then lose any Markdown 
formatting, which is not entirely uncommon in a prefix, and even 
occasionally in a suffix. I can work around it for this document, I guess, 
by just being careful not to use any Markdown formatting in these 
instances, but I'd love to find a way to take a set of Inlines and convert 
it to a format without adding a block.

On Friday, 29 July 2022 at 19:04:51 UTC+1 suki...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:

> Hi,
>
> For your first problem, when you do pandoc.write, as a minimum a block is 
> created, which, I believe, is normally a paragraph. So, don't call 
> pandoc.write. I guess you can concatenate the prefix, citation and suffix 
> and pass them to the pandoc.RawInline function. 
>
>
> For your second problem, I am guessing you are using --citeproc in your 
> defaults file. If that is the case, try: 1) putting the defaults file after 
> the filter; or 2) specifying --citeproc manually, also after the filter.
>
> Hth,
>
> Sukil
>
>
> El 29/07/2022 a las 16:58, Lyndon Drake escribió:
>
> Thanks for all the help - definitely getting somewhere now!
>
> I guess what I want to avoid is replicating in my not-great-Lua code all 
> the work Pandoc already has to take a string of Markdown and convert it to 
> LaTeX. I'm using pandoc.write to attempt that, and it seems to be working 
> to some degree. The code as it is now is below. I have two problems: 
>
> 1. This Markdown input [@Haran1982 165 n. 9, 172] gets converted by my 
> calling of pandoc.write into:
>
> ```
> \cite[165
>
> n.~9,
>
> 172]{Haran1982}
> ```
>
> and I can't figure out why the blank lines are turning up. I imagine I 
> need to do something more clever with the Inlines?
>
>
> 2. Despite the fact that my output in the terminal shows that I am 
> constructing the citetext variable as I am intending to, and I have this 
> line of code:
>
>                     return pandoc.RawInline('latex', citetext)
>
> The output .tex file still has the normal Pandoc citations. In other 
> words, my writer is constructing a nice LaTeX string with what I want in 
> it, and then discards it in favour of the normal Pandoc code, which is a 
> little bit depressing.
>
> Can anyone spot what I'm missing now?
>
> Best,
> Lyndon
>
> ```
> function Writer(doc, opts)
>     local filter = {
>         Note = function(el)
>             return el:walk {
>                 Cite = function(el)
>                     -- processing logic
>                     local citetext = ""
>                     if #el.citations > 1 then
>                         if el.citations[1].mode == "AuthorInText" then
>                             citetext = '\\textcites*'
>                         elseif el.citations[1].mode == "SuppressAuthor" 
> then
>                             citetext = '\\cites*'
>                         elseif el.citations[1].mode == "NormalCitation" 
> then
>                             citetext = '\\cites'
>                         end
>                     else
>                         if el.citations[1].mode == "AuthorInText" then
>                             citetext = '\\textcite*'
>                         elseif el.citations[1].mode == "SuppressAuthor" 
> then
>                             citetext = '\\cite*'
>                         elseif el.citations[1].mode == "NormalCitation" 
> then
>                             citetext = '\\cite'
>                         end
>                     end
>                     for _, c in pairs(el.citations) do
>                         if #c.prefix > 0 then
>                             local doc = pandoc.Pandoc(c.prefix)
>                             local citeprefix = pandoc.write(doc, 'latex')
>                             citetext = citetext .. '[' .. citeprefix .. ']'
>                         end
>                         if #c.suffix > 0 then
>                             local doc = pandoc.Pandoc(c.suffix)
>                             local citesuffix = pandoc.write(doc, 'latex')
>                             citetext = citetext .. '[' .. citesuffix .. ']'
>                         end
>                         citetext = citetext .. '{' .. c.id .. '}'
>                         print(citetext)
>                     end
>                     return pandoc.RawInline('latex', citetext)
>                 end
>             }
>         end
>     }
>     return pandoc.write(doc:walk(filter), 'latex', opts)
> end
> ```
>
> On Friday, 29 July 2022 at 10:49:18 UTC+1 suki...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org wrote:
>
>> I don't know, but the building blocks you'll need are `pandoc.stringify` 
>> which takes any object and converts it into a string, and `pandoc.RawBlock` 
>> or `pandoc.RawInline` which convert a string into a raw block or inline, 
>> and take the format as first argument and the string as second.
>>
>> Hth,
>>
>> Sukil
>>
>>
>> El 29/07/2022 a las 10:58, Lyndon Drake escribió:
>>
>> So I have the citation prefix, which I guess I have to convert to a valid 
>> LaTeX string. How can I take an Inlines and LaTeX-ify it to a string?
>>
>> On Friday, 29 July 2022 at 09:51:35 UTC+1 Lyndon Drake wrote:
>>
>>> Ah yep, that works. Next thing is I have to debug my obviously incorrect 
>>> code :-)
>>>
>>> On Friday, 29 July 2022 at 06:44:22 UTC+1 denis...-NSENcxR/0n0@public.gmane.org wrote:
>>>
>>>> That's the problem. This is a writer, not a filter. So you need to call 
>>>> it via 
>>>> -t latex-footcite.lua 
>>>> ________________________________________ 
>>>> Von: pandoc-...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org <pandoc-...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> im 
>>>> Auftrag von Lyndon Drake <isen...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> 
>>>> Gesendet: Freitag, 29. Juli 2022 07:15:08 
>>>> An: pandoc-discuss 
>>>> Betreff: Re: Changing LaTeX output for citations inside footnotes 
>>>>
>>>> My command line is: 
>>>>
>>>> pandoc -dbookends-latex --template 
>>>> /Users/lyndon/.local/share/pandoc/templates/book.latex 
>>>> --lua-filter=/Users/lyndon/.local/share/pandoc/filters/latex-footcite.lua 
>>>> -s -o thesis_jeremiah_32.tex jer-32-thesis.md 
>>>>
>>>> It's definitely picking up the lua file because if I have a syntax 
>>>> error, pandoc tells me. But I don't get any output. 
>>>>
>>>> On Thursday, 28 July 2022 at 21:32:06 UTC+1 denis...-NSENcxR/0n0@public.gmane.org wrote: 
>>>> How do you run this ? 
>>>> I’ve tested with a minimal markdown file : 
>>>>
>>>> ```markdown 
>>>> asdf 
>>>> ``` 
>>>>
>>>> Run with : 
>>>> pandoc asdf.md -t mylatex.lua 
>>>>
>>>> Result : 
>>>> got here 
>>>> asdf 
>>>>
>>>> So, it prints the first print statement of the writer. 
>>>>
>>>> Denis 
>>>>
>>>> Von: pandoc-...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org <pandoc-...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> Im 
>>>> Auftrag von Lyndon Drake 
>>>> Gesendet: Donnerstag, 28. Juli 2022 19:17 
>>>> An: pandoc-discuss <pandoc-...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> 
>>>> Betreff: Re: Changing LaTeX output for citations inside footnotes 
>>>>
>>>> Thanks for this - exactly what I needed. I've added my attempt at the 
>>>> code below, but I must be missing some basic part of it because it doesn't 
>>>> do anything. I added a couple of print statements that never get executed: 
>>>>
>>>> ``` 
>>>> function Writer(doc, opts) 
>>>> print "got here" 
>>>> local filter = { 
>>>> Note = function(el) 
>>>> return el:walk { 
>>>> Cite = function(el) 
>>>> -- processing logic 
>>>> print "got further" 
>>>> local citation = "" 
>>>> if #el.citations > 1 then 
>>>> if citations[1].mode == "AuthorInText" then 
>>>> citation = '\\textcites*' 
>>>> elseif citations[1].mode == "SuppressAuthor" then 
>>>> citation = '\\cites*' 
>>>> elseif citations[1].mode == "NormalCitation" then 
>>>> citation = '\\cites' 
>>>> end 
>>>> else 
>>>> if citations[1].mode == "AuthorInText" then 
>>>> citation = '\\textcite*' 
>>>> elseif citations[1].mode == "SuppressAuthor" then 
>>>> citation = '\\cite*' 
>>>> elseif citations[1].mode == "NormalCitation" then 
>>>> citation = '\\cite' 
>>>> end 
>>>> end 
>>>> for c in el.citations do 
>>>> if c.prefix ~= "" then 
>>>> citation = citation .. '[' .. c.prefix .. ']' 
>>>> end 
>>>> if c.suffix ~= "" then 
>>>> citation = citation .. '[' .. c.suffix .. ']' 
>>>> end 
>>>> citation = citation .. '{' .. c.id<http://c.id> .. '}' 
>>>> end 
>>>> return pandoc.RawInline('latex', citation) 
>>>> end 
>>>> } 
>>>> end 
>>>> } 
>>>> return pandoc.write(doc:walk(filter), 'latex', opts) 
>>>> end 
>>>> ``` 
>>>>
>>>> Apologies for what must be a very basic question, but what am I missing 
>>>> here? 
>>>> On Wednesday, 27 July 2022 at 11:27:32 UTC+1 denis...-NSENcxR/0n0@public.gmane.org wrote: 
>>>> What kind of example do you need? I only know about the examples in the 
>>>> documentation. 
>>>>
>>>> I think this here is a nice one : 
>>>>
>>>> https://pandoc.org/lua-filters.html#modifying-pandocs-manual.txt-for-man-pages 
>>>>
>>>> Or : the new style writer 
>>>> https://pandoc.org/custom-writers.html#example-modified-markdown-writer 
>>>>
>>>> So, something like this here could be start: 
>>>>
>>>> ``` 
>>>> function Writer(doc, opts) 
>>>> local filter = { 
>>>> Note = function(el) 
>>>> return el:walk { 
>>>> Cite = function(el) 
>>>> -- processing logic 
>>>> return pandoc.RawInline('latex', '\\cite[prenote][postnote]{key}') 
>>>> end 
>>>> } 
>>>> end 
>>>> } 
>>>> return pandoc.write(doc:walk(filter), 'latex', opts) 
>>>> end 
>>>> ``` 
>>>>
>>>> I don’t think you can get the current writer in Lua. 
>>>>
>>>>
>>>> Von: pandoc-...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org <pandoc-...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> Im 
>>>> Auftrag von Lyndon Drake 
>>>> Gesendet: Dienstag, 26. Juli 2022 11:00 
>>>> An: pandoc-discuss <pandoc-...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> 
>>>> Betreff: Re: Changing LaTeX output for citations inside footnotes 
>>>>
>>>> Thanks for this. I can see how that could work. 
>>>>
>>>> Can you point me to another example that uses the walk function? 
>>>>
>>>> Regarding a new-style Lua writer, is there a way to get the current 
>>>> LaTeX writer as Lua code? Or is it just the Haskell code? (I once knew 
>>>> Haskell but that was rather a long time ago.) 
>>>> On Monday, 25 July 2022 at 22:02:38 UTC+1 denis...-NSENcxR/0n0@public.gmane.org wrote: 
>>>> I can't come up with a code example now, bit you can use the walk 
>>>> function (https://pandoc.org/lua-filters.html#type-block:walk) to 
>>>> modify the citations with a given mode inside notes. You'll need to build 
>>>> the citation via Pandoc.RawInline 
>>>> Maybe that would be a good example of a new style Lua writer. 
>>>> ________________________________________ 
>>>> Von: pandoc-...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org <pandoc-...-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org> im 
>>>> Auftrag von Lyndon Drake <isen...-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org> 
>>>> Gesendet: Montag, 25. Juli 2022 21:46:28 
>>>> An: pandoc-discuss 
>>>> Betreff: Changing LaTeX output for citations inside footnotes 
>>>>
>>>> Hi, 
>>>>
>>>> So this is a slightly odd request, which really comes because of the 
>>>> unusual behaviour of the specific BibLaTeX bibliography style I'm using. In 
>>>> that style, \textcite inside a footnote produces an unwanted result. \cite 
>>>> produces the expected output. I have generally just gone through and 
>>>> hand-edited my Pandoc-produced LaTeX files when they get to the final copy 
>>>> stage, but that's painful, and I also thought that maybe this is possible 
>>>> to do in a Lua filter. 
>>>>
>>>> But I don't quite know where to start - obviously this is a bit 
>>>> different from the internal Pandoc citations. I'm going to begin the filter 
>>>> with this: 
>>>>
>>>> if FORMAT:match 'latex' then <https://pandoc.org/lua-filters.html#cb9-3> 
>>>> function 
>>>>
>>>> but what would the function be? If it is Footnote, then I don't really 
>>>> want the AST, I want the LaTeX that forms the footnote contents, and I 
>>>> suppose then I can just replace any occurrences of the string \textcite 
>>>> with the string \cite? 
>>>>
>>>> Any help would be awesome! 
>>>>
>>>> Best, 
>>>> Lyndon 
>>>>
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