我正在尝试迁移tabularray，但字幕格式却无法解决。我需要字幕对齐，除了对于最后一行，应将其居中；如果只有一行，则应将其居中。此外，标题标签应在其自己的行上刷新。
我正在使用memoir文档类，因此在我按照其手册进行操作并实现我需要的操作之前，如下所示：
\documentclass[a4paper,14pt,openany]{memoir}
\usepackage{tabularx}
\newcommand{\SCTableFont}{\small} % 12pt
\newcommand{\SCTableLabelFont}{\SCTableFont\itshape}
\newcommand{\SCTableCaptionFont}{\SCTableFont\bfseries}
\setfloatadjustment{table}{
\captionnamefont{\hfill\SCTableLabelFont}
\captiontitlefont{\SCTableCaptionFont}
\captiondelim{}
\captionstyle[\centering\\]{\centerlastline\\} % <--- !!!
\SCTableFont
}
\begin{document}
\begin{table} [htbp]%
\caption{Not too long caption should be centered}%
\label{tbl:not-too-long}
\begin{tabularx}{\textwidth}{|X|X|}
\hline
first & second \\
\hline
\end{tabularx}
\end{table}
\begin{table} [htbp]%
\caption{If a caption is long enough to not fit in a single line, it should be rendered as a block paragraph but with the last line centered. If a caption is long enough to not fit in a single line, it should be rendered as a block paragraph but with the last line centered.}%
\label{tbl:long}
\begin{tabularx}{\textwidth}{|X|X|}
\hline
first & second \\
\hline
\end{tabularx}
\end{table}
\ref{tbl:not-too-long}, \ref{tbl:long}
\end{document}
请注意，它memoir提供了 (1)\captionstyle一个可选参数，当标题由单行组成时才使用；以及 (2) \centerlastline，它完全满足我的需要。
现在我试图从中获得相同的结果tabularray，但却失败了：
\documentclass[a4paper,14pt,openany]{memoir}
\usepackage{tabularray}
\newcommand{\SCTableFont}{\small} % 12pt
\newcommand{\SCTableLabelFont}{\SCTableFont\itshape}
\newcommand{\SCTableCaptionFont}{\SCTableFont\bfseries}
\DefTblrTemplate{caption}{default}{%
{\hfill % <--- \raggedleft does not work
\SCTableLabelFont
Table\hspace{0.25em}\thetable}%
\newline
{\centering % <--- does not work; \centerlastline does not work either
\SCTableCaptionFont
\InsertTblrText{caption}}}
\begin{document}
\begin{table} [htbp]%
\begin{talltblr}[
caption = {Not too long caption should be centered},
label = {tbl:not-too-long}
]{|X|X|}
\hline
first & second \\
\hline
\end{talltblr}
\end{table}
\begin{table} [htbp]%
\begin{talltblr}[
caption = {If a caption is long enough to not fit in a single line, it should be rendered as a block paragraph but with the last line centered. If a caption is long enough to not fit in a single line, it should be rendered as a block paragraph but with the last line centered.},
label = {tbl:long}
]{|X|X|}
\hline
first & second \\
\hline
\end{talltblr}
\end{table}
\ref{tbl:not-too-long}, \ref{tbl:long}
\end{document}
显然，这里有一些我不明白的程序。我确信我应该使用\SetTblrStyle；类似于
\SetTblrStyle{caption-text}{halign=???}
除了 (1)tabularray仅提供l (left), c (center), r (right) or j (justify)此键之外，(2) 据我所知，如果您重新定义整个标题模板（而不是其各个部分），则样式不适用。 （反过来，我无法重新定义单独的部分，因为书写\DefTblrTemplate{caption-sep}{default}{\newline}不起作用）。
我看见这这让我毛骨悚然，还有其他办法吗？
答案1
在尝试解决这个问题的过程中，我偶然发现了一个非常有趣的评论本课程的作者memoir：
我维护回忆录并定期使用带有回忆录的标题，因为它具有比回忆录开箱即用所支持的功能更多的功能。
...这让我立刻想起了 Gaben或多或少推荐 Unity 而不是 Source。
所以我咬紧牙关，从内置memoir字幕转变为caption。
之后，将上述caption内容整合到以下内容tabularray就很简单了：
\documentclass[a4paper,14pt,openany]{memoir}
\usepackage{tabularray}
\usepackage{caption}
\DeclareCaptionStyle{SCTableCaptionStyle}{%
font=small,% affecting the whole caption
labelfont=it,% affects the caption label and separator
textfont=bf,% only affects the caption text
labelsep=period,%
skip=2pt,%
position=above,%
parskip=0pt,%
indention=0cm%
}
\DeclareCaptionFormat{SCTableCaptionFormat}{\raggedleft#1\par\centerlast#3}
\captionsetup[table]{%
style=SCTableCaptionStyle,%
format=SCTableCaptionFormat%
}
% https://tex.stackexchange.com/a/628973
\ExplSyntaxOn
\prg_generate_conditional_variant:Nnn \tl_if_empty:n { e } { TF }
\let\SCIfTokenListEmpty=\tl_if_empty:eTF
\ExplSyntaxOff
\DefTblrTemplate{firsthead}{default}{%
\addtocounter{table}{-1}%
\captionsetup{type=table}%
\SCIfTokenListEmpty{\InsertTblrText{entry}}{%
\caption{\InsertTblrText{caption}}%
}{%
\caption[\InsertTblrText{entry}]{\InsertTblrText{caption}}%
}%
}
% While we're at it, let's make continuation/conclusion captions for longtblr too
\DefTblrTemplate{middlehead}{default}{%
\addtocounter{table}{-1}%
\captionsetup{type=table,style=SCContTableCaptionStyle}%
\caption[]{\InsertTblrText{caption}}%
}
\DefTblrTemplate{lasthead}{default}{%
\addtocounter{table}{-1}%
\captionsetup{type=table,style=SCConclTableCaptionStyle}%
\caption[]{\InsertTblrText{caption}}%
}
% Allows to avoid duplicate entries in the LoT.
% https://tex.stackexchange.com/questions/628900/628973#comment1572626_628973.
\SetTblrTemplate{caption-lot}{empty}
\DeclareCaptionLabelFormat{SCTableContConclCaptionLabelFormat}{tbl. #2}
\DeclareCaptionFormat{SCTableContCaptionFormat}{\raggedleft Continuation of #1}
\DeclareCaptionFormat{SCTableConclCaptionFormat}{\raggedleft Conclusion of #1}
\DeclareCaptionStyle{SCContTableCaptionStyle}{
style=SCTableCaptionStyle,%
font+=it,
format=SCTableContCaptionFormat,%
labelformat=SCTableContConclCaptionLabelFormat%
}
\DeclareCaptionStyle{SCConclTableCaptionStyle}{
style=SCTableCaptionStyle,%
font+=it,
format=SCTableConclCaptionFormat,%
labelformat=SCTableContConclCaptionLabelFormat%
}
% Remove "Continued on next page" at table bottom
\SetTblrTemplate{contfoot}{empty}
\begin{document}
\begin{table} [htbp]%
\begin{talltblr}[
caption = {Not too long caption should be centered},
label = {tbl:not-too-long}
]{|X|X|}
\hline
first & second \\
\hline
\end{talltblr}
\end{table}
\begin{table} [htbp]%
\begin{talltblr}[
caption = {If a caption is long enough to not fit in a single line, it should be rendered as a block paragraph but with the last line centered. If a caption is long enough to not fit in a single line, it should be rendered as a block paragraph but with the last line centered.},
label = {tbl:long}
]{|X|X|}
\hline
first & second \\
\hline
\end{talltblr}
\end{table}
\ref{tbl:not-too-long}, \ref{tbl:long}
\end{document}
我禁不住想，对于在字幕支持方面投入的所有疯狂工作tabularray——所有那些Templates、Styles 和s——也许追随作者Theme的脚步并仅添加与包的深度集成会是一个更好的选择。memoircaption