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I'm writing a document class based on the book class. In this class I have some code as below: 

\RequirePackage[total={10cm,18cm},paperwidth=16cm, paperheight=23cm]{geometry} \RequirePackage[cross,center,noinfo,a4]{crop}

I want to define an option for my class, say, nocrop so that when I use it, the above code change into the code below: 

\RequirePackage[total={10cm,18cm}]{geometry} %\RequirePackage[cross,center,noinfo,a4]{crop}

In other words, I want the crop package to be exempted from being run and the paperwidth=16cm, paperheight=23cm to be deleted.

Is this possible? if yes, how?
Here is my MWE: 

\RequirePackage{filecontents} % my class file \begin{filecontents}{myclass.cls} \NeedsTeXFormat{LaTeX2e} \ProvidesClass{myclass} \DeclareOption*{\PassOptionsToClass{\CurrentOption}{book}} \ProcessOptions \LoadClass{book} \RequirePackage[total={10cm,18cm},paperwidth=16cm, paperheight=23cm]{geometry} \RequirePackage[cross,center,noinfo,a4]{crop} \endinput \end{filecontents} \documentclass{myclass} \usepackage{lipsum} \begin{document} \lipsum[1] \end{document}

(I'm using XeLaTeX on a Windows machine, if it helps.)

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A switch (\ifmyclass@crop) can be defined, that is set via the option and asked later to include the right set of packages/options:

\RequirePackage{filecontents} % my class file \begin{filecontents}{myclass.cls} \NeedsTeXFormat{LaTeX2e} \ProvidesClass{myclass} \newif\ifmyclass@crop \myclass@croptrue % default \DeclareOption{nocrop}{\myclass@cropfalse} \DeclareOption*{\PassOptionsToClass{\CurrentOption}{book}} \ProcessOptions \LoadClass{book} \ifmyclass@crop \RequirePackage[total={10cm,18cm},paperwidth=16cm,paperheight=23cm]{geometry} \RequirePackage[cross,center,noinfo,a4]{crop} \else \RequirePackage[total={10cm,18cm}]{geometry} \fi \endinput \end{filecontents} \documentclass{myclass} \usepackage{lipsum} \begin{document} \lipsum[1] \end{document}
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  • Thanks for your answer, but when I use ‎‎\documentclass[nocrop]‎{myclass}, I get two errors: ! File ended while scanning use of ^^M. and ! Emergency stop.. Commented Jul 10, 2014 at 18:03
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    @VahidDamanafshan: Two minutes after the first post, I have added a missing ] in RequirePackage[total={10cm,18cm}]{geometry}. Perhaps your browser has showed you the old version. Commented Jul 10, 2014 at 18:08

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