[Tex/LaTex] Change start number on\lstinputlisting

line-numberinglistingsnumbering

I am attempting to change the starting number of some Matlab code from 1 to 236. I tried using firstline=236 but nothing was output after compilation.

Can you assist me in getting the code numbering to start from 236?

Here is what I have thus far:

\documentclass{book}

\usepackage{listings}
\usepackage{xcolor}
\usepackage[numbered,framed]{matlab-prettifier}
\usepackage{filecontents}

\begin{filecontents*}{\jobname.m}
 % detect if next step is an obstacle
                if bug.isoccupied(robot + [dx; dy])
                    bug.message('(%d,%d) obstacle!', n);
                    bug.H(bug.j,:) = robot; % define hit point
                    bug.step = 2;
                    % get a list of all the points around the obstacle
                    bug.edge = edgelist(bug.occgridnav == 0, robot);
                    %bug.k = 2;  % skip the first edge point, we are already there
                    bug.k = size(bug.edge,2)
                else
                    n = robot + [dx; dy];
                end
            end % step 1
\end{filecontents*}


\lstdefinestyle{mystyle}{
numbers=left,
numberstyle=\small,
numbersep=8pt,
%language=Matlab,
style=Matlab-editor,
basicstyle=\ttfamily\small,
numbersep=22pt,
frame=none
}


\begin{document}


\lstinputlisting[%firstline = 236,
backgroundcolor=\color{blue!10},
style=Matlab-editor,
basicstyle=\mlttfamily\scriptsize,
caption={[First Change to the Bug2 Algorithm]{First Change to the Bug2 Algorithm}},
label = mat:line246]{\jobname.m}

\end{document}

Best Answer

The correct option is firstnumber=236!

See the following code:

\documentclass{book}

\usepackage{listings}
\usepackage{xcolor}
\usepackage[numbered,framed]{matlab-prettifier}
\usepackage{filecontents}

\begin{filecontents*}{\jobname.m}
 % detect if next step is an obstacle
                if bug.isoccupied(robot + [dx; dy])
                    bug.message('(%d,%d) obstacle!', n);
                    bug.H(bug.j,:) = robot; % define hit point
                    bug.step = 2;
                    % get a list of all the points around the obstacle
                    bug.edge = edgelist(bug.occgridnav == 0, robot);
                    %bug.k = 2;  % skip the first edge point, we are already there
                    bug.k = size(bug.edge,2)
                else
                    n = robot + [dx; dy];
                end
            end % step 1
\end{filecontents*}


\lstdefinestyle{mystyle}{
numbers=left,
numberstyle=\small,
numbersep=8pt,
%language=Matlab,
style=Matlab-editor,
basicstyle=\ttfamily\small,
numbersep=22pt,
frame=none
}


\begin{document}


\lstinputlisting[%
  %firstline = 236,
  firstnumber=236, % <==================================================
  backgroundcolor=\color{blue!10},
  style=Matlab-editor,
  basicstyle=\mlttfamily\scriptsize,
  caption={[First Change to the Bug2 Algorithm]{First Change to the Bug2 Algorithm}},
  label = mat:line246
]{\jobname.m}

\end{document}

and the result:

Related Solutions

[Tex/LaTex] First line number in lstinputlisting environment

This default behaviour is understandable since the listings package has no concern with the layout and/or structure of the imported listing. For that reason, here is one scenario that motivate a separate firstnumber key-value that does not default to the first line of linerange: Your sort.cpp file has a bunch of unrelated procedures/functions in it. Referencing some of the functions with the line numbers starting with the first element of linerange would have no meaning since the line number does not relate to the content.

Though, on a positive note, it is possible to force the listings package to make firstnumber the same as the first element in linerange (called firstline) regardless. To do this, we patch the linerange-parser (\lst@GLI@, short for Get Line Interval) using the etoolbox package command \patchcmd:

\usepackage{etoolbox}% http://ctan.org/pkg/etoolbox
...
\makeatletter
\patchcmd{\lst@GLI@}% <command>
  {\def\lst@firstline{#1\relax}}% <search>
  {\def\lst@firstline{#1\relax}\def\lst@firstnumber{#1\relax}}% <replace>
  {\typeout{listings firstnumber=firstline}}% <success>
  {\typeout{listings firstnumber not set}}% <failure>
\makeatother

The above patch print listings firstnumber=firstline if the command \lst@GLI@ was successfully patched, otherwise it will print listings firstnumber not set to the <jobname>.aux file. The patch consists of searching for the spot in \lst@GLI@ where the firstline is established, and adds to it an equivalent assignment of the firstnumber.

Note, however, that the above patch is a permanent replacement and voids further use of the firstnumber key-value.

[Tex/LaTex] Shared line counter with \lstinputlisting

You can use name=foo, firstnumber=last option to \lstinputlisting to obtain the desired results as shown in the yellow highlighted code:

enter image description here

Code:

\documentclass{article}

\begin{filecontents*}{foo.c}
  #include <stdio.h>
  void main()
\end{filecontents*}

\usepackage{listings}
\usepackage{xcolor}
\lstset{numbers=left,firstnumber=auto}

\begin{document}
\begin{lstlisting}[name=bar]
  first line
  second line
\end{lstlisting}
\begin{lstlisting}[name=bar]
  third line (continued)
\end{lstlisting}

\lstinputlisting[name=foo,backgroundcolor=\color{yellow!20}]{foo.c}
\lstinputlisting[name=foo,backgroundcolor=\color{yellow!20}, firstnumber=last]{foo.c} %first line number is now 3
\end{document}

Best Answer

Related Solutions

[Tex/LaTex] First line number in lstinputlisting environment

[Tex/LaTex] Shared line counter with \lstinputlisting

Code:

Related Question