使用 datatool 时 gb4e 的间距问题

Question

假设我有一个.csv文件，里面有国际音标协会 (IPA)、它们的注释，以及我想要合并到文档中的翻译。

但是，使用datatool循环.csv不能与gb4e间距宏一起使用\gll。

比较：

到：

我认为问题可能是将\IPA命令放在单个\textipa{}命令中，但即使是第二个版本，\textipa{}命令出现在.csv文件内部而不是\DTLforeach循环中，也会导致同样的问题。

平均能量损失

\documentclass{article}

\begin{filecontents*}{glosses1.csv}
IPA,GLOSS,TRANSLATION
sonj2n-i motun kuki-lul an-m2k-ess-ta,boy-NOM all cookie-ACC NEG-eat-PST-DEC,The boy didn't eat every cookie
\end{filecontents*}

\begin{filecontents*}{glosses2.csv}
IPA,GLOSS,TRANSLATION
\textipa{sonj2n-i} \textipa{motun} \textipa{kuki-lul} \textipa{an-m2k-ess-ta},boy-NOM all cookie-ACC NEG-eat-PST-DEC,The boy didn't eat every cookie
\end{filecontents*}

\usepackage{datatool}
\DTLloaddb{glosses1}{glosses1.csv}
\DTLloaddb{glosses2}{glosses2.csv}

\usepackage[T1]{tipa}
\usepackage{gb4e}

\begin{document}

\section{How it ought to look}

\begin{exe}
    \ex[]{\gll \textipa{sonj2n-i} \textipa{motun} \textipa{kuki-lul} \textipa{an-m2k-ess-ta} \\
    boy-NOM all cookie-ACC NEG-eat-PST-DEC \\
    \trans `The boy didn't eat every cookie'
    }
\end{exe}

\section{What it actually looks like}

\DTLforeach{glosses1}{%
\IPA=IPA,
\GLOSS=GLOSS,
\TRANS=TRANSLATION}{%
\begin{exe}
    \ex[]{\gll \textipa{\IPA} \\
    \GLOSS \\
    \trans `\TRANS'}
\end{exe}
}

\DTLforeach{glosses2}{%
\IPA=IPA,
\GLOSS=GLOSS,
\TRANS=TRANSLATION}{%
\begin{exe}
    \ex[]{\gll \IPA \\
    \GLOSS \\
    \trans `\TRANS'}
\end{exe}
}

\end{document}

Answer 1

从理论上来说这应该可行：

\DTLforeach{glosses2}{%
\IPA=IPA,
\GLOSS=GLOSS,
\TRANS=TRANSLATION}{%
\begin{exe}
\edef\doex{%
    \noexpand\ex[]{\noexpand\gll 
      \expandonce\IPA \noexpand\\
    \expandonce\GLOSS \noexpand\\
    \noexpand\trans `\expandonce\TRANS'}%
}
\doex
\end{exe}
}

然而，似乎存在一个错误，导致加载 csv 文件时丢失datatool第一组括号。因此，第一个条目加载为\textipa{sonj2n-i}

\textipa sonj2n-i \textipa{motun} \textipa{kuki-lul} \textipa{an-m2k-ess-ta}

代替

\textipa{sonj2n-i} \textipa{motun} \textipa{kuki-lul} \textipa{an-m2k-ess-ta}

可以通过更改列顺序或插入空括号来解决此问题：

\begin{filecontents*}{glosses2.csv}
IPA,GLOSS,TRANSLATION
{}\textipa{sonj2n-i} \textipa{motun} \textipa{kuki-lul} \textipa{an-m2k-ess-ta},boy-NOM all cookie-ACC NEG-eat-PST-DEC,The boy didn't eat every cookie
\end{filecontents*}

或者插入一个空列：

\begin{filecontents*}{glosses2.csv}
,IPA,GLOSS,TRANSLATION
,\textipa{sonj2n-i} \textipa{motun} \textipa{kuki-lul} \textipa{an-m2k-ess-ta},boy-NOM all cookie-ACC NEG-eat-PST-DEC,The boy didn't eat every cookie
\end{filecontents*}

我会看看是否能找出导致该错误的原因。以下是完整的 MWE：

\documentclass{article}

\begin{filecontents*}{glosses2.csv}
,IPA,GLOSS,TRANSLATION
,\textipa{sonj2n-i} \textipa{motun} \textipa{kuki-lul} \textipa{an-m2k-ess-ta},boy-NOM all cookie-ACC NEG-eat-PST-DEC,The boy didn't eat every cookie
\end{filecontents*}

\usepackage{etoolbox}
\usepackage{datatool}
\DTLloaddb{glosses2}{glosses2.csv}

\usepackage[T1]{tipa}
\usepackage{gb4e}

\begin{document}

\section{How it ought to look}

\begin{exe}
    \ex[]{\gll \textipa{sonj2n-i} \textipa{motun} \textipa{kuki-lul} \textipa{an-m2k-ess-ta} \\
    boy-NOM all cookie-ACC NEG-eat-PST-DEC \\
    \trans `The boy didn't eat every cookie'
    }
\end{exe}

\section{What it actually looks like}

\DTLforeach{glosses2}{%
\IPA=IPA,
\GLOSS=GLOSS,
\TRANS=TRANSLATION}{%
\begin{exe}
\edef\doex{%
    \noexpand\ex[]{\noexpand\gll 
      \expandonce\IPA \noexpand\\
    \expandonce\GLOSS \noexpand\\
    \noexpand\trans `\expandonce\TRANS'}%
}
\doex
\end{exe}
}

\end{document}

得出的结果为：