% \subsubsection{MathJax support}
% When using mathjax, dump all the |\newcommand|s to a |.jax| file.
%
% First, create the |.jax| file.
% \begin{macrocode}
%<*classXimera>
\ifdefined\HCode
\else
\newwrite\myfile
\immediate\openout\myfile=\jobname.jax
\fi
%
% \end{macrocode}
% From |only.dtx| we must also create |prompt| on the MathJax side.
% \begin{macrocode}
%<*classXimera>
\ifdefined\HCode
\else
\immediate\write\myfile{\unexpanded{\newenvironment}{prompt}{}{}}
\fi
%
% \end{macrocode}
% Redefine newcommand appropriately.
% \begin{macrocode}
%<*classXimera>
\ifdefined\HCode
\else
\let\@oldargdef\@argdef
\long\def\@argdef#1[#2]#3{%
\immediate\write\myfile{\unexpanded{\newcommand}{\unexpanded{#1}}[\unexpanded{#2}]{\unexpanded{#3}}}%
\@oldargdef#1[#2]{#3}%
}
\let\@OldDeclareMathOperator\DeclareMathOperator
\renewcommand{\DeclareMathOperator}[2]{\@OldDeclareMathOperator{#1}{#2}\immediate\write\myfile{\unexpanded{\DeclareMathOperator}{\unexpanded{#1}}{\unexpanded{#2}}}}
\fi
%
% \end{macrocode}
% Include the jax'ed newcommands
% \begin{macrocode}
%<*cfgXimera>
% Remove commands that use @
\immediate\write18{sed -i "/@/d" \jobname.jax}
% Replace ##1 with #1 and so forth
\immediate\write18{sed -i "s/\string#\string#\string\\([0-9]\string\\)/\string#\string\\1/g" \jobname.jax}
\Configure{BVerbatimInput}{}{}{}{}
\Configure{verbatiminput}{}{}{}{}
% Instead of a nonbreaking space, use a standard space
\makeatletter
\def\FV@Space{\space}
\makeatother
% Include the mathjax newcommands in a math/tex script right at the beginning of the body
\Configure{BODY}{%
\HCode{\Hnewline}%
\Tg%
\Tg%
\IfFileExists{\jobname.ids}{\HCode{\Hnewline}%
\Tg
%
}{}
}{%
\HCode{\Hnewline}%
}
% \end{macrocode}
% Now I just need to add a newcommand command which outputs the
% appropriate newcommands to MathJax; then this should be "good
% enough" for our purposes.
% \begin{macrocode}
\newtoks\eqtoks
\def\AltMath#1${\eqtoks{#1}%
\HCode{}$}
\Configure{$}{}{}{\expandafter\AltMath}
\def\AltlMathI#1\){\eqtoks{#1}%
\HCode{}\)}
\Configure{()}{\AltlMathI}{}
\def\AltlDisplay#1\]{\eqtoks{#1}%
\HCode{}\]}
\Configure{[]}{\AltlDisplay}{}
\def\AltlDisplayI#1$${\eqtoks{#1}%
\HCode{}$$}
\Configure{$$}{}{}{\expandafter\AltlDisplayI}
% \end{macrocode}
% Need to turn off htmlpar too, as expained in http://tex.stackexchange.com/questions/204930/vertical-spaces-in-htlatex-scriptenv
% \begin{macrocode}
\newcommand\VerbMath[1]{%
\renewenvironment{#1}{\NoFonts}{\EndNoFonts}
\ScriptEnv{#1}{\ifvmode \IgnorePar\fi \EndP\HCode{}}
}
% \end{macrocode}
% This is a fix for the LAODE book, which uses matlabEquation as if it were an equation
% \begin{macrocode}
\ScriptEnv{matlabEquation}{\ifvmode \IgnorePar\fi \EndP\HCode{}}
\VerbMath{equation}
\VerbMath{equation*}
\VerbMath{align}
\VerbMath{align*}
\VerbMath{alignat}
\VerbMath{alignat*}
\VerbMath{eqnarray}
\VerbMath{eqnarray*}
%
% \end{macrocode}