[Tex/LaTex] How to format xml

formattingxml

Hi I use the following LaTeX to ouput xml format data, however, there is no space before each line.

 \documentclass{minimal}
 \usepackage{etex},
 \begin{document}
 \medskip
 {\small\noindent
 \fbox{\begin{minipage}{6cm}
 <invoke operation="a3". . .>\\
 \hspace{3mm}<Handler>\\
 \ \ \ \ \ <operation="...." . . .>\\
 \ \ <Handler>\\
 </invoke>
 \end{minipage}}
 }
 \medskip
 \end{document}

The output is below:
enter image description here

However, I wish to output the format like this as there is some space align each line.
enter image description here

Can someone help me?

Best Answer

The listings package1 can help you out here, as suggested by Torbjørn T. in the comments. It's designed for typesetting code.

\documentclass{article}
\usepackage{listings}
\lstset{language=XML,basicstyle=\ttfamily,breaklines=true}

\begin{document}
\begin{lstlisting}
<invoke operation="a3" ...>
  <Handler>
    <operation="..." ...>
  <Handler>
</invoke>
\end{lstlisting}
\end{document}

It renders pretty well.

Alternatives include the built-in verbatim environment, but that doesn't wrap lines quite as easily (you have to break them manually, instead of just setting breaklines=true). listings also offers syntax highlighting; it's quite configurable, but there is very basic highlighting by default, if you specify the language (as I have with language=XML above).

\begin{lstlisting}
<tag /> <!-- comment --> <![CDATA[foo]]>
\end{lstlisting}

(tag unaffected, comment italicised, CDATA unaffected)

Note the italicisation of comment.

Footnotes

  1. Which I am not affiliated with; I just like it.
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