# Extract Package question: Not present \Sectionformat statement is extracted

I use the solution shown here (thanks to Mike Renfro!) to extract a synopsis from my LaTeX documents. Sadly I am struggling with the output of the headings. Basically the problem is that the extract packages extracts commands that are not present in the document.

\section{section}


gets

\section[section]{\Sectionformat {section}{1}}


which gives an compile error.

Here is a MWE of the code

\documentclass{article}
\usepackage{tocbasic}
\usepackage{afterpage}
\usepackage{pdflscape}
\usepackage{eso-pic} %exact placement of figures
\usepackage[below]{placeins} %prevents floats of getting over a FloatBarrier
\usepackage{pdftexcmds}
\usepackage[font+=footnotesize]{subcaption}
%%%%%%% This is for extracting synopses %%%%%%%
%% see stackexchange
\usepackage{verbatim}
\let\synopsis\comment \let\endsynopsis\endcomment
% Extract synopsis environments, \section commands, and \tableofcontents
% commands into a separate synopsis.tex file. In that file, a synopsis
% environment will be a simple semantic environment with no extra decoration.
\usepackage[active,generate=synopsis, extract-env={synopsis},
extract-cmd={section,subsection,subsubsection}, %extract on section, subsection and sub subsection level
extract-cmdline={tableofcontents}
]{extract}
\begin{extract}
\newenvironment{synopsis}{}{}
\end{extract}

%,hypertexnames=false

%%%%%%

\begin{document}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\section{introduction} \begin{synopsis} Some text \end{synopsis} Main
text

\end{document}


and this is the output

%%
%% This is file, synopsis.tex',
%% generated with the extract package.
%%
%% Generated on :  2016/01/11,19:26
%% From source  :  mwesynopsis.tex
%% Using options:  active,generate=synopsis,extract-env={synopsis},extract-cmd={section,subsection,subsubsection},extract-cmdline={tableofcontents}
%%
\documentclass{article}
\newenvironment{synopsis}{}{}

\begin{document}

\section[introduction]{\Sectionformat {introduction}{1}}

\begin{synopsis}
Some text
\end{synopsis}

\end{document}


I get an compilation error for

\section[introduction]{\Sectionformat {introduction}{1}}


compiling with XeTeX

! Undefined control sequence.
<argument> \Sectionformat
{introduction}{1}
l.14 ...duction]{\Sectionformat {introduction}{1}}

The control sequence at the end of the top line
of your error message was never \def'ed. If you have
misspelled it (e.g., \hobx'), type I' and the correct
spelling (e.g., I\hbox'). Otherwise just continue,
and I'll forget about whatever was undefined.


Any hints how to get rid of this error are warmly welcome

• Untested, but see if putting the \usepackage{tocbasic} command in an extract* environment works. See section 5 of the extract documentation. – Mike Renfro Jan 15 '16 at 2:27

\Sectionformat is from the hyperref package. So if you make sure you include it in the synopsis document with the extract* environment, things should work correctly. If you need other packages in the synopsis, add them to the extract* environment as well.

You should also avoid adding text on a line after a synopsis, as that text will be ignored (your original document only had "text", not "main text" in the body).

\documentclass{article}
\usepackage{verbatim}
\let\synopsis\comment \let\endsynopsis\endcomment
\usepackage[active,
generate=synopsis,
extract-env={synopsis},
extract-cmd={section,subsection,subsubsection},
extract-cmdline={tableofcontents}
]{extract}
\usepackage{tocbasic}
\usepackage{afterpage}
\usepackage{pdflscape}
\usepackage{eso-pic}
\usepackage[below]{placeins}
\usepackage{pdftexcmds}
\usepackage[font+=footnotesize]{subcaption}
\begin{extract*}