在 expex 中垂直调整示例编号

Question

example number包中的可以使用和命令expex进行水平调整，如第 11 页所述numoffsettextoffset文档（PDF 链接）. 但如何调整垂直（相对于\gla基线？命令本身aboveexskip并不belowexskip调整example number。

我希望该解决方案能够适用于 LTR 和 RTL 语言。

%XeLaTeX
\documentclass{scrbook}

\usepackage{libertine}
\usepackage{polyglossia}
    \setdefaultlanguage{english}
    \setotherlanguage{hebrew}
    \newfontfamily\hebrewfont[Script=Hebrew]{Linux Libertine O}
    \newfontfamily\englishfont{Linux Libertine O}

\usepackage{expex} %gloss package

\lingset{everygla=\LARGE}

% to fix RTL example number going into margin
\makeatletter
\def\beginskip{\if@RTL\rightskip\else\leftskip\fi}
\def\ex@c{%
   \ex@setup
   \leavevmode
   \setbox\numbox=\hbox{\hskip\lingnumoffset\ep@actualexnoprint}%
   \epd@numright=\wd\numbox
   \ifcase\ep@textanchor
        \ep@settosum\beginskip\lingnumoffset\lingtextoffset
      \or
        \ep@settosum\beginskip\epd@numright\lingtextoffset
      \fi
   \llap{\hbox to\beginskip{\unhbox\numbox \hss}}
   \lingeveryex
   \latex@tagex
   \ignorespaces
}
\makeatother

\begin{document}

\noindent Left-to-right (LTR) example:

\ex\begingl
\gla Lorem ipsum //
\glb lorem ipsum //
\endgl\xe


\hfill Right-to-left (RTL) example:

\begin{hebrew}\ex\begingl
\gla לוראם איפסום //
\glb lorem ipsum //
\endgl\xe\end{hebrew}

\end{document}

Answer 1

您可以向 ExPex 添加新的维度键，并使用该键调整数字。以下代码适用于\ex示例，但不适用于\pex示例，因为该代码尚未包含在您的 RTL/LTR 修复中。

%XeLaTeX
\documentclass{scrbook}

\usepackage{libertine}
\usepackage{polyglossia}
    \setdefaultlanguage{english}
    \setotherlanguage{hebrew}
    \newfontfamily\hebrewfont[Script=Hebrew]{Linux Libertine O}
    \newfontfamily\englishfont{Linux Libertine O}

\usepackage{expex} %gloss package



% to fix RTL example number going into margin
\makeatletter
% add a new dimension key numvoffset
\define@lingincdimenkeys{numoffset,textoffset,numvoffset}

\def\beginskip{\if@RTL\rightskip\else\leftskip\fi}
\def\ex@c{%
   \ex@setup
   \leavevmode
   \setbox\numbox=\hbox{\hskip\lingnumoffset\ep@actualexnoprint}%
   \epd@numright=\wd\numbox
   \ifcase\ep@textanchor
        \ep@settosum\beginskip\lingnumoffset\lingtextoffset
      \or
        \ep@settosum\beginskip\epd@numright\lingtextoffset
      \fi
   % add \lingnumvoffset to the example number output code
   \llap{\raise\lingnumvoffset\hbox to\beginskip{\unhbox\numbox \hss}}
   \lingeveryex
   \latex@tagex
   \ignorespaces
}
\makeatother

% set the dimension key globally
\lingset{everygla=\LARGE,numvoffset=.5ex}
\begin{document}

\noindent Left-to-right (LTR) example:

\ex\begingl
\gla Lorem ipsum //
\glb lorem ipsum //
\endgl\xe


\hfill Right-to-left (RTL) example:

\begin{hebrew}\ex\begingl
\gla לוראם איפסום //
\glb lorem ipsum //
\endgl\xe\end{hebrew}

\end{document}