Syntax to setup environment using environ package with multiple arguments

Question

I can't get the syntax right. I am trying to use this answer below to help me.

how to use conditional to define different \begin and \end environment at compile time

I am trying to setup an environment for tex4ht vs. pdflatex. If tex4ht is running, then the environment will be

\begin{Verbatim}
   .......
\end{Verbatim}

If pdflatex is running, then it will be

\begin{Verbatim}[samepage,fontsize=\small,frame=single]
   .......
\end{Verbatim}

I am not able to figure the API to \NewEnviron to pass those additional arguments above inside the [....]

Here is a MWE

\documentclass{article}%    
\usepackage{fancyvrb}
\usepackage{array}%for m option

\usepackage{environ}
\NewEnviron{X}[4][]{%  takes 4 arguments, samepage,fontsize=..,frame=...,Verbatim
  \ifdefined\HCode %htlatex
    \begin{#4}
      \BODY
    \end{#4}
  \else% pdflatex
    \begin{#4}[#1,#2,#3]  %is this right?
      \BODY
    \end{#4}
  \fi%
}

\begin{document}

\begin{tabular}[c]{|m{4in}|m{2.5in}|}\hline
\textbf{Mathematica}
\begin{X}[samepage][fontsize=\small][frame=single]{Verbatim}  %is this right?

    {(10 E^(-t/10) HeavisideTheta[t] 
       Sin[(3 Sqrt[11] t)/10])/(3 Sqrt[11])}   some Verbatim stuff

\end{X}
&
   some text
\\\hline
\end{tabular}

\end{document}

The above should become the following (if pdflatex is running)

\begin{tabular}[c]{|m{4in}|m{2.5in}|}\hline
\textbf{Mathematica}
\begin{Verbatim}[samepage,fontsize=\small,frame=single]

   {(10 E^(-t/10) HeavisideTheta[t] 
       Sin[(3 Sqrt[11] t)/10])/(3 Sqrt[11])}

\end{Verbatim}
&
   some text
\\\hline
\end{tabular}

and if tex4ht if running, it should become

\begin{tabular}[c]{|m{4in}|m{2.5in}|}\hline
\textbf{Mathematica}
\begin{Verbatim}

    {(10 E^(-t/10) HeavisideTheta[t] 
       Sin[(3 Sqrt[11] t)/10])/(3 Sqrt[11])}

\end{Verbatim}
&
   some text
\\\hline
\end{tabular}

I tried calling it as follows

\begin{X}[samepage,fontsize=\small,frame=single]{Verbatim} 

But that did not help. I keep getting syntax error Missing $ inserted \end{X} and extra } etc....

Also tried

\begin{X}[samepage],[fontsize=\small],[frame=single]{Verbatim} 

What is the correct syntax to setup this environment? Using texlive 2013 and Miktex

Answer 1

You can't define verbatim environments using \NewEnviron, because those absorb the environment's content as an argument, so no category code changing, essential for verbatim, can be performed.

There is a much simpler way: define the environment in two different ways, rather than one environment that changes behavior.

\documentclass{article}
\usepackage{fancyvrb}
\usepackage{array}%for m option


\ifdefined\HCode % tex4ht
  \DefineVerbatimEnvironment{X}{Verbatim}{}
\else
  \DefineVerbatimEnvironment{X}{Verbatim}{samepage,fontsize=\small,frame=single}
\fi

\begin{document}

\begin{tabular}[c]{|m{3in}|m{1in}|}\hline
\textbf{Mathematica}
\begin{X}
    {(10 E^(-t/10) HeavisideTheta[t]
       Sin[(3 Sqrt[11] t)/10])/(3 Sqrt[11])}
\end{X}
&
some text\\
\hline
\end{tabular}

\end{document}