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如何为自定义命令添加连字符支持？

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如何为自定义命令添加连字符支持？

给出以下自定义命令：

\newcommand{\topic}[1]{#1\index{#1}}
\newcommand{\class}[1]{\textsf{\topic{#1}}}

用于具有完整包名的 Java 类，例如：

\class{org.openscience.cdk.layout.StructureDiagramGenerator}

使用当前命令定义，类名在句点处不会使用连字符。我该如何更改 \newcommand{} 以让 LaTeX 在句点处使用连字符连接类？

我在 \caption{} 方法中使用了 \class{}，这似乎使某些解决方案无效。

答案1

我倾向于使用该url包来完成这项任务。（它为此类内容的换行提供了灵活的选项，而不仅仅是 URL。）以下是示例：

\documentclass[twocolumn]{article}
\usepackage{url}
\DeclareUrlCommand\printtopic{\urlstyle{sf}}
\newcommand{\topic}[1]{\protect\printtopic{#1}\index{#1}}
\DeclareRobustCommand{\class}[1]{\topic{#1}}
\begin{document}
text foo bar baz hello
\class{org.openscience.cdk.layout.StructureDiagramGenerator}
\end{document}

答案2

无论你做什么，几乎都不可能得到一个包含所有类名变体的可接受的排版。你可以使用半手动方法，如下例所示（最后一个例子）。

\documentclass[11pt]{article} 
\usepackage[utf8]{inputenc} 

\usepackage{url}
\begin{document}
\overfullrule=0.5pt
\parskip=20pt
Using \textbackslash url, it will remove all spaces the colon will be placed at end of section, whereas a common convention is to move it at the next line

\fbox{\begin{minipage}{1.65in}
\url{org.openscience.cdk.layout.StructureDiagramGenerator}
\end{minipage}}



\gdef\classformatter#1{
    \hyphenpenalty=-200
    \textsf{#1}
}

It is impossible for \TeX to hyphenate the next example, as the fist word of a paragraph is never hyphenated and this is treated as one long word (\TeX\ is probably thinking it is just a long abbreviation).

\begin{minipage}{1.65in}
\classformatter{org.openscience.cdk.organizationlayout.StructureDiagramGenerator}
\end{minipage}


If you type a space at the point you want to allow a break \TeX\ will attempt to hyphenate,

\fbox{\begin{minipage}{1.65in}
\classformatter{org.openscience.cdk .organizationlayout .StructureDiagramGenerator}
\end{minipage}}

You will never avoid a little bit of hand manipulation, allow a break now and then;

\fbox{\begin{minipage}{1.65in}
\classformatter{org.openscience.cdk\\ .organizationlayout .StructureDiagramGenerator}
\end{minipage}}

\end{document}

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