Re: [NTG-context] Implementing a custom authorconversion for bibliographies

On 9/15/2021 5:06 AM, Joey McCollum via ntg-context wrote:

All right, I figured out where I needed to make this change for it to take effect. The relevant script is publ-aut.lua. The code I needed to change was for the "oneauthor" function definition, which itself is located in the "btxauthor" function definition. My changes are detailed below:

did you try to stay at the tex end? like: % \startsetups \s!btx:\s!cite:\s!author:invertedfirst % \ifnum\currentbtxauthorindex>\plusone % \btxsetauthorvariant{inverted} % \else % \btxsetauthorvariant{normal} % \fi % \fastsetup{\s!btx:\s!cite:\s!author:\btxauthorvariant} % \stopsetups \startsetups \s!btx:\s!cite:\s!author:invertedfirst \ifnum\currentbtxauthorindex>\plusone \fastsetup{\s!btx:\s!cite:\s!author:inverted} \else \fastsetup{\s!btx:\s!cite:\s!author:normal} \fi \stopsetups

```         local function oneauthor(i,last,justone)             local author = split[i]             if index then                 ctx_btxstartauthor(i,1,0)             elseif last then                 ctx_btxstartauthor(i,1,0)                 ctx_btxsetconcat(0)                 if combiner == "invertedfirst" then                     if i == 1 then                         ctx_btxsetauthorvariant("inverted")                     else                         ctx_btxsetauthorvariant("normal")                     end                 else                     ctx_btxsetauthorvariant(combiner)                 end             else                 local state = author.state or 0                 ctx_btxstartauthor(i,max,state)                 ctx_btxsetconcat(concatstate(i,max))                 if combiner == "invertedfirst" then                     if i == 1 then                         ctx_btxsetauthorvariant("inverted")                     else                         ctx_btxsetauthorvariant("normal")                     end                 else                     ctx_btxsetauthorvariant(combiner)                 end             end             local initials = author.initials             if initials and #initials > 0 then                 ctx_btxsetinitials() -- (concat(the_initials(initials,symbol)," "))             end             local firstnames = author.firstnames             if firstnames and #firstnames > 0 then                 ctx_btxsetfirstnames() -- (concat(firstnames," "))             end             local vons = author.vons             if vons and #vons > 0 then                 ctx_btxsetvons() -- (concat(vons," "))             end             local surnames = author.surnames             if surnames and #surnames > 0 then                 ctx_btxsetsurnames() -- (concat(surnames," "))             end             local juniors = author.juniors             if juniors and #juniors > 0 then                 ctx_btxsetjuniors() -- (concat(juniors," "))             end             if not index and i == max then                 if split.others then                     ctx_btxsetoverflow(1)                 else                     local overflow = #split - max                     if overflow > 0 then                         ctx_btxsetoverflow(overflow)                     end                 end             end             if combiner == "invertedfirst" then                 if i == 1 then                     ctx_btxsetup("inverted")                 else                     ctx_btxsetup("normal")                 end             else                 ctx_btxsetup(combiner)             end             ctx_btxstopauthor()         end ```

I'll admit that the addition of entire if-else blocks around whether or not the combiner is a specific value may not be the best practice in terms of future maintenance (especially if similar index-dependent authorconversions are needed in the future). Alternatively, the "btxauthor" function could populate a "combiners" array of length "max" with a specific authorconversion for each author in the split; for most authorconversions, all entries in this array would be the same, but for authorconversions like "invertedfirst", the first entry would be different from the rest. Then, the "oneauthor" function could just reference combiners[i] instead of combiner.

Joey

On Fri, Sep 3, 2021 at 10:48 PM Joey McCollum mailto:jmccollum20140511@gmail.com> wrote:

Hi,

I mentioned this in an earlier e-mail but thought that now might be a good time to describe this issue in detail. I'd like to define a new authorconversion that renders the first author in a list differently than the remaining authors in the list. Specifically, I'd like to use the "inverted" authorconversion for the first author and the "normal" authorconversion for the rest.

In the newer bibl-bib.lua file, I can see what I might have to modify to accomplish this (I added the if combiner == "invertedfirst"  block):

``` function authors.concat(author,combiner,what,settings)     if type(combiner) == "string" then         combiner = authors[combiner or "normal"] or authors.normal     end     local split = splitauthors(author)     local setting = settings[what]     local etallimit, etaldisplay, etaltext = 1000, 1000, ""     if setting then         etallimit   = settings.etallimit   or 1000         etaldisplay = settings.etaldisplay or etallimit         etalltext   = settings.etaltext    or ""     end     local max = #split     if max > etallimit and etaldisplay < max then         max = etaldisplay     end     if combiner == "invertedfirst" then         for i=1,max do             if i == 1 then                 split[i] = authors.inverted(split[i],settings)             else                 split[i] = authors.normal(split[i],settings)             end

        end     else         for i=1,max do             split[i] = combiner(split[i],settings)         end     end     local result = bibtexconcat(split,settings)     if max < #split then         return result     else         return result .. etaltext     end end ```

Unfortunately, this doesn't seem to do anything. It's not clear to me how bibl-bib.lua and bibl-bib.mkiv are being used by the other publication support modules, if they're being used at all (publ-ini.mkiv doesn't appear to register it, anyway). Is there another file I'd have to change to make "invertedfirst" a working authorconversion? Is there a similar block of code in publ-ini.lua where I should be implementing this change instead?

Thanks!

Joey

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