Changing the style of author’s surname in a custom bibliographical style

* Changing the style of author’s surname in a custom bibliographical style
@ 2021-09-11 10:04 Tomáš V via ntg-context
  2021-09-15 16:40 ` Tomáš V via ntg-context
  0 siblings, 1 reply; 2+ messages in thread
From: Tomáš V via ntg-context @ 2021-09-11 10:04 UTC (permalink / raw)
  To: ntg-context; +Cc: Tomáš V

Greetings,

I am trying to make a bibliographical style that would comply to the ISO 
690 standard and I have a few questions:

1) The name of the author need to be written in the inverted format 
(e.g. Knuth, Donald). It is also customary to write the surname either 
in uppercase or in small caps (e.g. KNUTH, Donald). If I wanted to 
change the whole name to small caps I’d do something like this:

\btxdoif {author} {
     {\sc \btxflush{author}}
     \btxperiod
}

How do I change the “font” of the surname only? Can this be done by 
redefining a TeX macro (like in BibLaTeX’s \mkbibnamefamily) or is this 
done by changing some Lua code?

2) As I have said, the name has to be inverted. This is done by setting 
authorconversion to inverted. I’ve tried doing this like this:

\setupbtx[iso690:list][authorconversion=inverted,]

and this:

\setupbtxlist[iso690][authorconversion=inverted,]

Neither of these options work, but this works:

\setupbtx[default:list][authorconversion=inverted,]

I’m confused—why does changing the default option work and changing the 
option for my style doesn’t?

Here's a MWE for both of my problems:

% publ-imp-iso690.mkiv
\startbtxrenderingdefinitions[iso690]
\definebtx
     [iso690]
     [
         default=default,
         specification=iso690,
     ]
\definebtxrendering
     [iso690]
     [
         specification=iso690,
         numbering=yes,
     ]
\setupbtx[default:list]
     [
         authorconversion=inverted,
     ]
% field definitions
\starttexdefinition btx:iso690:author
     \btxdoif {author} {
         \btxflush{author}
         \btxperiod
     }
\stoptexdefinition
% book definition
\startsetups btx:iso690:list:book
     \texdefinition{btx:iso690:author}
     \removeunwantedspaces
\stopsetups

% publ-imp-iso690.lua
local specification = {
     name      = "iso690",
     categories = { },
}
local categories = specification.categories
categories.book = {
     required = { "title" },
     optional = {"author"},
}
return specification

Thanks for your help,
Tomáš
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