知道\printnames命令biblatex是不可扩展的，因为它受到保护，而且我否则无法做很多事情；我考虑过用不受保护的命令biblatex.sty进行重建\printnames——希望能够得到一个可扩展的版本。
请注意，虽然\printfield{FIELD}不可扩展，\thefield{FIELD}但是（它只是调用以下类型的命令\abx@field@FIELD) - 所以我对“普通”字段没有太多问题。但是，对于名称，需要声明名称格式，然后需要遍历列表（最终使用\abx@name@FIELD)，因此比较复杂。
这是我取得的进展的 MWE - 仍然不起作用：
\documentclass{article}
\usepackage{trace}
\usepackage{filecontents}
\begin{filecontents}{\jobname.bib}
@misc{num01,
title = {Title1},
author = {Author1 Authorsen1 and Author1a Authorsen1a},
howpublished = {12-23-2001},
eprint = {MR001},
eprinttype = {mrnumber}}
@misc{num02,
title = {Title},
author = {Author2},
howpublished = {12-23-2002},
eprint = {002},
eprinttype = {mrnumber}}
@misc{num03,
title = {Title XX3},
author = {Author2 Authorsen2 and Author2a Authorsen2a},
howpublished = {12-23-2003},
eprint = {MR003 (aa)},
eprinttype = {mrnumber}}
@misc{num04,
title = {Title},
author = {Author4},
howpublished = {12-23-2004},
eprint = {004 (bb)},
eprinttype = {mrnumber}}
\end{filecontents}
\usepackage[bibstyle=numeric,citestyle=numeric]{biblatex}
\ExecuteBibliographyOptions{%
abbreviate=false,%
uniquename=allfull,%
maxnames=99,%
minnames=99,%
backend=biber,%
}
\addbibresource{\jobname.bib}
\DeclareNameFormat{testauthors}{% now only this works
\iffirstinits
{\usebibmacro{name:first-last}{#1}{#4}{#5}{#7}}
{\usebibmacro{name:first-last}{#1}{#3}{#5}{#7}}%
\usebibmacro{name:andothers}
}%
% copy of printnames:
\makeatletter
\def\getAuthsX{
% \let\@tempc\relax % no effect
%
\blx@getformat\blx@theformat{nfd}{testauthors}{author} %
\blx@begunit
\blx@namesetup{1}{99}{author}% {#2}{#3}{#4} - start, stop, 'namelist'
\expandafter\blx@nameparser\blx@thedata{}&%
\blx@endunit
}
\def\getAuths{\blx@listargs\getAuthsX}
\makeatother
% just a test for usual field:
\DeclareFieldFormat{myentrykey}{%
Testing #1 %
}
\newbibmacro*{myentrycite}{% custom
\printfield[myentrykey]{entrykey}
} % end \newbibmacro*{
\DeclareCiteCommand{\myentrycite}
{\usebibmacro{prenote}}
{\usebibmacro{citeindex}%
\printtext{\usebibmacro{myentrycite}}}
{}
{\usebibmacro{postnote}}
\begin{document}
\myentrycite{num03}
\getAuths
\end{document}
我最终想使用类似\edef\mytemp{\getAuths}; 的东西，但现在，我只是在测试它是否可以在排版环境中工作。使用以下方法构建：
pdflatex test.tex
biber test
pdflatex test.tex
...并且\getAuths函数在这里中断：
! Missing \endcsname inserted.
<to be read again>
\@tempc
\KV@split ...efix \@tempa \endcsname \ifx \@tempc
\relax \KV@errx {\@tempa \...
\KV@do ...lax #1\empty \else \KV@split #1==\relax
\expandafter \KV@do \fi
\setkeys ...{KV@#1@}\let \@tempc \relax \KV@do #2,
\relax ,
\blx@nameparser@i ...{\setkeys {blx@opt@name}{#1}}
\blx@theformat
<argument> ...rt \else \blx@nameparser@i \ifblank
\fi \advance \c@listcount ...
\@secondoftwo #1#2->#2
\getAuthsX ...dafter \blx@nameparser \blx@thedata
{}&\blx@endunit
\reserved@c ->\getAuthsX
{}{}{}
<to be read again>
\par
据我所知，它抱怨\@tempc- 但即使我\let\@tempc\relax在运行前明确设置也无济于事（更不用说，如果我正确读取了堆栈跟踪，它应该已经设置\relax为\setkeys）
如果坚持要求ENTER运行完成，PDF 中的输出\getAuths如下：
,1 and ∆ ’ ¿ and ’ ¿
.... 这（似乎）意味着作者姓名循环已经运行 - 但显然，没有检索到正确的数据。
有人能确认这是否可以做到吗？如果可以，请解释一下我缺少什么才能使它发挥作用？
是不是\let不可扩展？但是在这个例子中这有什么关系呢，因为我还没有调用\edef？！
编辑：
好的，第一个问题是我的疏忽 - 调用类似的内容\thefield{FIELD}意味着有一个“当前”的 bib 项目正在被处理 - 并且\getAuths从文档主体调用并没有设置任何特定的 bib 项目。
因此，解决这个问题的方法是简单地\getAuths从选择特定书目条目的命令中调用，例如\myentrycite{num03}（我知道我把所有代码都放在那里是有原因的:)）。
因此，对上述示例进行以下更改：
....
\DeclareFieldFormat{myentrykey}{%
Testing #1 \getAuthsX %
\edef\tmpa{\getAuthsX}
}
...
\begin{document}
\myentrycite{num03}
\end{document}
num03...人们可以看到PDF 文档中排版的条目作者姓名，这是最初的意图（也可以直接\getAuthsX使用）。
但是，我仍然无法获得扩展（如无法\edef\tmpa{\getAuthsX}工作），因此我很感激任何指点......
答案1
可扩展宏可从未格式化的书目数据中定义。该\savename命令只是将未格式化的名称列表复制到宏中。这些数据也可以通过使用\DeclareNameFormat或定义的格式化指令来访问\DeclareIndexNameFormat。
\DeclareIndexNameFormat旨在将数据写入索引，但我们可以使用它从列表中的每个名称中获取数据。在其生成的指令中，biber-only 名称分隔符（例如\bibinitperiod）扩展为纯文本。这很有用，因为biblatex标点符号命令仅在引用或参考书目命令中定义。
以下文档演示了一个格式指令getname，该指令将名字 ( #3)（或选项设置#4下的首字母 ( )）firstinits=true、姓氏前缀 ( #5) 和姓氏 ( #1) 附加到可扩展宏\name。该指令由引用命令执行\getauthor。
\documentclass{article}
\usepackage[american]{babel}
\usepackage[backend=biber,firstinits]{biblatex}
\newcommand*{\name}{}
\DeclareIndexNameFormat{getname}{%
\def\addcomma{,}
\def\space{ }
\ifnumgreater{\value{listcount}}{\value{liststart}}
{\ifnumless{\value{listcount}}{\value{liststop}}
{\xappto{\name}{\addcomma\space}}
{\ifnumgreater{\value{liststop}}{2}
{\xappto{\name}{\finalandcomma}}
{}%
\xappto{\name}{\space\bibxstring{and}\space}}}
{}%
\ifblank{#4} % See update below
{}
{\iffirstinits
{\xappto{\name}{#4\space}}
{\xappto{\name}{#3\space}}}%
\ifblank{#5}
{\xappto{\name}{#1}}
{\xappto{\name}{#5\space#1}}}
\DeclareCiteCommand{\getauthor}
{\undef\name
\boolfalse{citetracker}%
\boolfalse{pagetracker}}
{\ifnameundef{author}
{}
{\ifboolexpr{ test {\ifnumgreater{\value{citecount}}{1}}
and not test {\ifundef{\name}} }
{\gappto{\name}{; }}
{}%
\indexnames[getname][1-99]{author}}}
{}
{}
\addbibresource{biblatex-examples.bib}
\begin{document}
\getauthor{knuth:ct,vangennep}
\edef\temp{Some text \name}
\subsubsection*{\temp}
\getauthor{companion,aristotle:anima,ctan}
\subsubsection*{\MakeUppercase{\name}}
\textcite{cms,companion,aristotle:anima,ctan}
\end{document}
更新自原始答案以来，语法\DeclareIndexNameFormat已发生变化：不再将参数 #1 至 #8 存储在全名中，而是将其存储在 #1 中，并可以通过不同的\namepart宏进行访问。上述代码受影响的部分经过以下更改后仍可正常工作：
\nameparts{#1}
\ifblank{\namepartgiveni}
{}
{\iffirstinits
{\xappto{\name}{\namepartgiveni\space}}
{\xappto{\name}{\namepartgiven\space}}}%
\ifblank{\namepartprefix}
{\xappto{\name}{\namepartfamily}}
{\xappto{\name}{\namepartprefix\space\namepartfamily}}}
答案2
好吧，我真是发抖！完成这件事太痛苦了！！
@Audrey 一小时前就已经回答了，不过与此同时我也找到了解决方案，所以我只想在这里记录下来……
首先 - 对我来说最重要的部分 - 这里是（不是）MWE 的终端输出，发布在最后：
(./test.aux) (./test.bbl)
taA__Authorsen1__A.\spacefactor \blx@sf@dot ______
taB__Authorsen1__Author1______
ta --Author1 Authorsen1==
taA__Authorsen1a__A.\spacefactor \blx@sf@dot ______
taB__Authorsen1a__Author1a______
ta -- and Author1a Authorsen1a.==
= currentauthors =
==Author1 Authorsen1 and Author1a Authorsen1a.==
taA__Authorson2__A.\spacefactor \blx@sf@dot ______
taB__Authorson2__Author2______
ta --Author2 Authorson2.==
= currentauthors =
==Author2 Authorson2.==
taA__Authorsen3__A.\spacefactor \blx@sf@dot ______
taB__Authorsen3__Author3______
ta --Author3 Authorsen3==
taA__Authorsen3A__A.\spacefactor \blx@sf@dot ______
taB__Authorsen3A__Author3A______
ta --, Author3A Authorsen3A==
taA__Authorsen3B__A.\spacefactor \blx@sf@dot ______
taB__Authorsen3B__Author3B______
ta --, and Author3B Authorsen3B.==
= currentauthors =
==Author3 Authorsen3, Author3A Authorsen3A, and Author3B Authorsen3B.==
Underfull \hbox (badness 10000) in paragraph at lines 407--408
名称似乎被正确扩展为“纯文本”；但是，该示例还表明这种方法仍然可以与通常的biblatex排版共存：
（可扩展过程的主要目的只是提供文本字符；然而在 MWE 中，它也排版（虽然不成功）只是作为一个例子 - 否则，只需要注释一个命令来抑制排版输出，参见代码）
讨论
趁我还记得，就说几句话……基本上，一切都在原地打转，看着无尽的traceon输出，直到人们意识到这是\DeclareNameFormat可以拥有这些名称的主要部分；然后我偶然尝试将一个包装\edef在它的内部宏上：
% \DeclareNameFormat{testauthors}{% now only this works
% \typeout{ta==#1==#4==#5==#7==}
% \typeout{ta==#1==#3==#5==#7==}
% \edef\tmpa{
% \iffirstinits
% {\usebibmacro{name:first-last}{#1}{#4}{#5}{#7}}
% {\usebibmacro{name:first-last}{#1}{#3}{#5}{#7}}%
% \usebibmacro{name:andothers}
% }
% \typeout{ta--\tmpa==}
% \tmpa
% }%
\usebibmacro...虽然失败了 - 但是它也引发了将s 单独包装的想法\edef（这是当前解决方案的基础）：
% \DeclareNameFormat{testauthors}{% now only this works
% \typeout{ta==#1==#4==#5==#7==}
% \typeout{ta==#1==#3==#5==#7==}
%
% \iffirstinits
% {\edef\tmpa{\usebibmacro{name:first-last}{#1}{#4}{#5}{#7}}}
% {\edef\tmpa{\usebibmacro{name:first-last}{#1}{#3}{#5}{#7}}}%
% \usebibmacro{name:andothers}
%
% \typeout{ta--\tmpa==}
% \tmpa
% }%
这也不太管用 - 但至少它开始显示哪些命令是不可扩展的；所以我可以在 .tex 文件中将它们重新定义为不受保护的命令。因此，经过漫长的traceing 过程，我开始将现有函数复制到biblatex.sty我的.tex文件中。这部分同样不简单 - 因为并非所有函数都可以在 中找到逐字定义；然后可以在 .tex 文档本身中biblatex.sty使用- 或(\showtexdef通常，当某个定义未通过一种方法显示时，它将通过另外两种方法之一显示）。
然后，我们应该记住，受保护的biblatex命令（例如\usebibmacro{name:first-last}）在\abx@macro@name:delim（我仍然不知道如何找出正确的关系，除了查看日志和源文件:)) 但是内部命令也可以受到保护 - 如果没有，可以使用受保护的宏；因此需要一段时间来识别所需的“最小”一组“被黑”定义。
另一件需要记住的事情\DeclareNamesFormat是每一个人的名字在引用中；因此，不能期望一次性“拉出”完整的“姓名列表” - 在下面的 MWE 中，有一个“全局”的“变量”（\currentauthors），用于连接每次传递中生成的内容 - 并且应该包含完整的作者姓名列表作为扩展文本，一旦自定义引用过程完成。
另外，我应该指出，只要有可能，我就会尝试删除诸如此类的排版命令\unhbox，因为它们通常也是不可扩展的；似乎有一些biblatex基于不同跳过的标点符号计算 - 但删除它们似乎对扩展名称列表没有太大影响。
当我得到这个日志输出时我到达了一个关键点：
taA==Authorsen2==A.======
taB==Authorsen2==Author2======
ta --Author2 Authorsen2 ==
taA==Authorsen2a==A.======
taB==Authorsen2a==Author2a======
ta --\ifboolexpr {test {0}ortest 0}{, }{ and }Author2a Authorsen2a ==
... 这意味着我需要的几乎所有东西都已扩展 - 除了\ifboolexpr。首先我想到使用boolexpr包，但这与 etoolbox/biblatex 冲突...然后事实证明也有一个可扩展的\ifboolexpe-etoolbox一旦替换它，我实际上就可以删除一些多余的重新定义。
一旦整个过程开始生成合适的名称（用于组成名称列表的规则biblatex似乎被保留，对于扩展的文本输出也是如此），就会出现另一个问题：由于我基本上重新定义了“核心”宏biblatex，现在我可以有一个可扩展的自定义引用 - 但“通常”不可扩展的自定义引用将不再起作用！
通过向所有重新定义的宏名称添加前缀来解决该问题EX，以帮助将它们与默认宏名称区分开来 - 并且这似乎允许混合使用多种方法，既允许通过biblatex；通常排版作者姓名，也允许对其进行扩展。
好吧，我想这就是我能记住的全部了:)，但是，代码中有很多注释 - 所以希望它能对某些人有所帮助。
MWE 代码
（使用pdflatex test.tex; biber test;构建pdflatex test.tex）
\documentclass{book}
\usepackage{trace}
\usepackage{filecontents}
\begin{filecontents}{\jobname.bib}
@misc{num01,
title = {Title1},
author = {Author1 Authorsen1 and Author1a Authorsen1a},
howpublished = {12-23-2001},
eprint = {MR001},
eprinttype = {mrnumber}}
@misc{num02,
title = {Title},
author = {Author2 Authorson2},
howpublished = {12-23-2002},
eprint = {002},
eprinttype = {mrnumber}}
@misc{num03,
title = {Title XX3},
author = {Author3 Authorsen3 and Author3A Authorsen3A and Author3B Authorsen3B},
howpublished = {12-23-2003},
eprint = {MR003 (aa)},
eprinttype = {mrnumber}}
@misc{num04,
title = {Title},
author = {Author4},
howpublished = {12-23-2004},
eprint = {004 (bb)},
eprinttype = {mrnumber}}
\end{filecontents}
\usepackage[bibstyle=numeric,citestyle=numeric]{biblatex}
\ExecuteBibliographyOptions{%
abbreviate=false,%
uniquename=allfull,%
maxnames=99,%
minnames=99,%
backend=biber,%
}
\addbibresource{\jobname.bib}
%\usepackage{boolexpr} %tlmgr install boolexpr ; expandable? yes, but:
% overwrites the \ifboolexpr by etoolbox (loaded by biblatex),
% and then everything breaks.. so cannot use
\makeatletter
% must keep, else appears as unexpanded in output
% was \protected ; used \isdot
%
% (biid): dot in mathmode;
% \mathchardef\blx@sf@dot=1002;
% 1002 abbreviation period (dot)
% typesetting related ?! don't use, it doesn't expand
% doesn't run in this example (we don't typeset anymore)?
% but it can kick in, if \abx@dot gets added here after fi
%
\def\EXblx@imc@isdot{%
\ifnum\blx@spacefactor=\blx@sf@period
%\spacefactor% (rtc)
\blx@sf@dot % (biid)
\fi
}
% must keep, to remove unexpanded typesettin cmds
%
\def\EXabx@dot{%
\ifdim\lastkern>\z@\unkern\fi
.%
%\spacefactor% (rtc)
%\blx@sf@dot% (rtc)
}%
% must keep, to remove unexpanded \unspace
%
\def\EXblx@addpunct#1{%
%\unspace% (rtc)
\ifnum\blx@spacefactor<\blx@sf@threshold@low
\csuse{blx@qp@#1}\csuse{abx@#1}%
\else
\ifnum\blx@spacefactor>\blx@sf@threshold@high
\csuse{blx@qp@#1}\csuse{abx@#1}%
\else
\ifcsdef{blx@pp@\the\csname blx@sf@#1\endcsname} %
{\csuse{blx@qp@#1}\csuse{abx@#1}}
{\csuse{blx@qp@#1}}%
\fi
\fi
\csuse{blx@pq@#1}}
% must keep, else appears as unexpanded in output
% was \protected ; used \adddot
%
\def\EXblx@imc@adddot{%
\EXblx@addpunct{dot}%
\ifnum\blx@spacefactor=\blx@sf@period
%\spacefactor% (rtc)
%\blx@sf@dot% (rtc)
\fi}
% must keep, else "! Undefined control sequence."
% was \protected ; used \addcomma
%
\def\blx@imc@addcomma{%
\EXblx@addpunct{comma}}
% was \newrobustcmd* ; used \adddot
%
\def\bibinitperiod{\EXblx@imc@adddot} % ;
% must keep, else appears as unexpanded in output
% was \protected
%
\def\EXblx@imc@resetpunctfont{%
\blx@ifpuncthook
{\global\let\abx@puncthook\@firstofone}
{}}
% (rtc) removed typesetting cmd
% must keep, else appears as unexpanded in output
% was \newrobustcmd
%
\def\EXaddlowpenspace{%
%\unspace% (rtc)
\blx@postpunct%
%\penalty\value{lownamepenalty}% (rtc)
\space%
\EXblx@imc@resetpunctfont}
% must keep, else appears as unexpanded in output
% was \newrobustcmd
%
\def\EXbibnamedelimd{\EXaddlowpenspace} %
% must keep, else appears as unexpanded in output
% was \protected
%
\def\EXaddspace{%
%\unspace% % (rtc)
\blx@postpunct%
\space%
\EXblx@imc@resetpunctfont%
}
% leaving \def\finalnamedelim out would cause trouble;
% even if by default it if not protected..
% that is because here, we want to avoid use of
% protected \bibstring => instead, \blx@imc@bibxstring
%
\def\EXfinalnamedelim{% not protected - for ref..
\ifnumgreater{\value{liststop}}{2}%
{\finalandcomma}%
{}%
\EXaddspace%
\blx@imc@bibxstring{and}%\bibstring{and}%
\space%
}
\def\EXlbx@finalnamedelim#1{%
\EXfinalnamedelim%
}
% redef without long -- now namebreak no complain:
%
% if this \def for namebreak is commented,
% then starting to get in console:
% "### semi simple group (level 3) entered at line 333 (\begingroup)"
%
% but must now re-define it along w/ nameparser, to allow
% interface with normal work
%
\def\EXblx@namebreak#1&{}
\def\EXblx@nameparser#1{%
\ifblank{#1}
{\EXblx@namebreak\relax}
{\ifnum\c@listcount<\c@liststart
\else
\EXblx@nameparser@i#1%
\fi
\advance\c@listcount\@ne
\ifnum\c@listcount>\c@liststop
\expandafter\EXblx@namebreak
\fi
\EXblx@nameparser}}
\def\EXblx@nameparser@i#1{%
\ifblank{#1}
{}
{\setkeys{blx@opt@name}{#1}}% this
\blx@theformat}
% also had previously redefined here:
% \DeclareRobustCommand{\KV@prefix}{}
% \def\blx@namesetup@i#1{%
% \def\blx@namesetup@ii#1#2{%
% \def\blx@namecodes{%
% \def\blx@namesetup#1#2#3{%
% originally, here \ifboolexpr was used;
% when used in expandable context; \ifboolexpr will fail with
% "! Argument of \@secondoftwo has an extra }" - UNLESS
% default paths (like {True}{False} for \ifnumless;
% and \ifmorenames must have one char only, {1}{0}) are added!
% only then, not getting the \@secondoftwo problem!
% BUT: \ifboolexpr robust = \ifboolexpe expandable
% if using \ifboolexpe - then should NOT have the added T/F branches!
%
\expandafter\def\csname EXabx@macro@name:delim\endcsname#1{%
\ifnumgreater{\value{listcount}}{\value{liststart}}%
{\ifboolexpe{%
test {\ifnumless{\value{listcount}}{\value{liststop}}}%
or%
test {\ifmorenames}%% \blx@imc@ifmorenames
}%
{\multinamedelim}{\EXlbx@finalnamedelim{#1}}%
}%
{}%
%\show\bibstring%\typeout{==name:delim==#1==}% bibstring=\protected macro:
}
% (nfl1): MUST have comment after cmd here; else a spurious space
% appears at end of last name! also removed \blx@imc@isdot (typeset)
% (nfl2): added: hack to "hardcode" a dot after all of the names are done
% (nfl3): \ifmorenames -> \blx@imc@ifmorenames
%
\expandafter\def\csname EXabx@macro@name:first-last\endcsname#1#2#3#4{%
\csname EXabx@macro@name:delim\endcsname{#2#3#1}%
\csname abx@macro@name:hook\endcsname{#2#3#1}%
\ifblank{#2}%
{}%
{\mkbibnamefirst{#2}\EXblx@imc@isdot\EXbibnamedelimd}%
\ifblank{#3}%
{}%
{\mkbibnameprefix{#3}\EXblx@imc@isdot%
\ifpunctmark{'}{}{%
\ifuseprefix{\bibnamedelimc}{\EXbibnamedelimd}}%
}%
\mkbibnamelast{#1}\EXblx@imc@isdot%
\ifblank{#4}{}%
{\EXbibnamedelimd\mkbibnameaffix{#4}}% (nfl1)
\ifboolexpe{% (nfl2)
test {\ifnumless{\value{listcount}}{\value{liststop}}}%
or%
test {\ifmorenames}% (nfl3)
}%
{}{\EXabx@dot}%
}
% (dnf1): expanding name:andothers is currently a problem;
% fails w/ "! Argument of \@secondoftwo has an extra }."
% but, 'and' in names gets added automatically - without name:andothers;
% name:andothers just if we want it shortened ("and others").
% and I don't need that currently..
% (dnf2): perform concatenation here;
% (dnf3): this "return" output of \tmpa also typesets;
% comment it out if typeset not desired
%
\DeclareNameFormat{testauthors}{%
\typeout{taA__#1__#4__#5__#7__}
\typeout{taB__#1__#3__#5__#7__}
%\traceon
\iffirstinits%
{\edef\tmpa{\csname EXabx@macro@name:first-last\endcsname{#1}{#4}{#5}{#7}}}%
{\edef\tmpa{\csname EXabx@macro@name:first-last\endcsname{#1}{#3}{#5}{#7}}}%
%\edef\tmpb{\csname abx@macro@name:andothers\endcsname } % (dnf1)
\csname abx@macro@name:andothers\endcsname
\typeout{ta --\tmpa==}
\global\edef\currentauthors{\currentauthors\tmpa} % (dnf2)
\tmpa % (dnf3)
}%
%\blx@namesetup: {#2}{#3}{#4} - start, stop, 'namelist';
% eg. {1}{99}{author} - but can do without
%
\def\getAuthsX{%
\blx@getformat\blx@theformat{nfd}{testauthors}{author}%
\blx@namesetup{}{}{author}%
\expandafter\EXblx@nameparser\blx@thedata{}&%
}
\makeatother
\def\getAuths{%
\getAuthsX%
}
\newbibmacro*{myentrycite}{% custom
\global\def\currentauthors{} % init empty string for concat
\getAuths
}
\DeclareCiteCommand{\myentrycite}
{}
{\usebibmacro{myentrycite}}
{}
{}
%%%%%%%%%%%%
\DeclareNameFormat{normauthors}{%
\iffirstinits
{\usebibmacro{name:first-last}{#1}{#4}{#5}{#7}}
{\usebibmacro{name:first-last}{#1}{#3}{#5}{#7}}%
\usebibmacro{name:andothers}
}%
\newbibmacro*{normentrycite}{% custom
\printnames[normauthors]{author}%
}
\DeclareCiteCommand{\normentrycite}
{}
{\usebibmacro{normentrycite}}
{}
{}
\begin{document}
%\traceon
\textit{Author names output of expandable cite commands:}
% adding new cites will require a new biber run!
\myentrycite{num01}
\typeout{^^J= currentauthors =^^J==\currentauthors==^^J}
\myentrycite{num02}
\typeout{^^J= currentauthors =^^J==\currentauthors==^^J}
\myentrycite{num03}
\typeout{^^J= currentauthors =^^J==\currentauthors==^^J}
\bigskip
\textit{Author names output of usual cite command:} \\
% will give "Runaway argument?" if all
% defaults are reprogrammed; and not
% handled with separate names!
\normentrycite{num03}
\end{document}