listings
I tried to define a few PowerShell cmdlets for the lstlisting environment, but it seems that the - breaks the definition. So when I try:
\lstdefinelanguage{powershell}{
keywords = {Get-AzureSubscription,Get-Host,anything}
}
only the keyword anything is detected. Do I have to escape the -, and how?
Thanks for any help.
After trying to do this by changing the catcode of . to letter and a short look through the listings code I decided to RTFM and found the alsoletter option quite quickly. You also may want to use the alsodigit option instead.
\documentclass{article}
\usepackage{listings}
\lstset{alsoletter={.},morekeywords={read.table}}
\begin{document}
\begin{lstlisting}
read read.table table read-table
test
\end{lstlisting}
\end{document}
You can use the keywordsprefix=<prefix> to specify that anything beginning with the <prefix> is considered a a keyword. The MWE below highlights any word beginning with B in blue, but leaves other text alone:
However you should note the following limitations form the listings documentation:
The prefix is always case sensitive.
Only one prefix can be defined at a time.
If used standalone outside a language definition, the key might work only after selecting a nonempty language (and switching back to the empty language if necessary).
The key does not respect the value of
classoffsetand has no optional class argument.
\documentclass{article}
\usepackage{listings}%
\usepackage{xcolor}
\lstset{%
backgroundcolor=\color{yellow!20},%
basicstyle=\small\ttfamily,%
numbers=left, numberstyle=\tiny, stepnumber=2, numbersep=5pt,%
keywordstyle=\color{blue}\bfseries,
language=Java,
keywordsprefix=B,
}%
\begin{document}
\begin{lstlisting}
ABC BGT DEF
BLE XYZ MWS
BNE DNW QES
ABN BEQ MWE
\end{lstlisting}
\end{document}
Best Answer
As Marijn said in his comment you should add
alsodigit = {-}in your definition: