moslatex

Introduction

moslatex is a content mambot for the popular Joomla! Content Management System (CMS). It parses LaTeX markup embedded in Joomla! content and converts the markup to PNG image files using commonly available command line utilities. The generated images are then displayed to the end user browsing the site without them needing to install any additional plugins or utilities.

moslatex was primarily designed and tested using Joomla! 1.0.6 to 1.0.13 on Linux based hosts. It is however believed that improvements in the most recent release should ensure that it will function correctly on alternative platforms including Windows.

Work is also being done to ensure moslatex works on the upcoming Joomla! 1.5 release when it becomes final.

Usage

On a Joomla! site with moslatex enabled users can simply insert LaTeX markup directly into the content editors, surrounded by the appropriate tags. As a result of its heritage (originally designed to mirror functionality provided by TWiki's MathModePlugin) moslatex supports several tag variations for identifying blocks of LaTeX to be processed, they are:

{moslatex}LATEX{/moslatex}
%$LATEX$%
%MATHMODE{LATEX}%
%\[LATEX\]%

As with the MathModePlugin the last two markup styles place the enclosed formula on its own line in the output.

Example Usage

Example 1

{moslatex} 
\begin{multline}
  {\Bigl(\frac{\sigma'_{kl}}{2{\mu'}^{Vp}}\Bigr)} =
  \left(
    \frac{1}{4{\mu'}^{Vp}}
    \left(
      \delta_{ik}\delta_{jl}+\delta_{jk}\delta_{il}  
    \right)
    - {h}^{(\sigma)} \sigma'_{kl} \sigma'_{ij}
  \right)
  {\sigma'}_{ij} \\
  - {h}^{(p)}\sigma'_{kl}{p}
  - {h}^{(T)}\sigma'_{kl}{T}  
\end{multline}
{/moslatex}

becomes...

LaTeX forumla

Example 2

{moslatex}
\psset{unit=0.5cm} 
\begin{pspicture}(-4,-0.5)(4,8)
\psgrid[subgriddiv=0,griddots=5,
   gridlabels=7pt](-4,-0.5)(4,8) 
\psline[linewidth=1pt]{->}(-4,0)(+4,0)  
\psline[linewidth=1pt]{->}(0,-0.5)(0,8)
\psplot[plotstyle=curve,
   linewidth=0.5pt]{-4}{0.9}{10 x exp}
\rput[l](1,7.5){$10^x$} 
\psplot[plotstyle=curve,linecolor=red,
   linewidth=0.5pt]{-4}{3}{2 x exp} 
\rput[l](2.2,7.5){\color{blue}$e^x$}
\psplot[plotstyle=curve,linecolor=blue,
   linewidth=0.5pt]{-4}{2.05}{2.7183 x exp}
\rput[l](3.2,7.5){\color{red}$2^x$} 
\rput(4,8.5){\color{white}change\normalcolor}
\rput(-4,-1){\color{white}bounding box\normalcolor}
\end{pspicture}
{/moslatex}

becomes...

LaTeX graph