latex
Compile a subset of LaTeX to HTML
nikola plugin i latex
This plugin allows to write posts and pages in a subset of LaTeX. This makes it possible to use the same .tex
file both as input to this page compiler and as an include for a real LaTeX document.
For Python before 3.4, you need to install the enum34
library. From Python 3.4 on, it is part of the language.
Supported LaTeX subset
The posts should contain what usually is contained between \begin{document}
and \end{document}
in a LaTeX document.
The following LaTeX or LaTeXsimilar constructs can be used:
 Simple formatting such as
\textbf{...}
,\textit{...}
,\texttt{...}
and\emph{...}
. 
\begin{center} ... \end{center}
can be used for centered text. 
\begin{blockquote} ... \end{blockquote}
can be used for block quotes. 
Formulae:
 Everything of the form
$...$
,\( ... \)
for inline formulae.  Everything of the form
$$...$$
,\[ ... \]
for displaystyle formulae. 
\begin{align} ... \end{align}
and\begin{align*} ... \end{align*}
for aligned formulae from the AMSMath package. Note that no equation numbers will be used in HTML output, and that you cannot use\label{...}
and\ref{...}
with\begin{align}
environments.  Everything of the form
\begin{pstricks}{...} ... \end{pstricks}
.  Everything of the form
\begin{tikzpicture}[...] ... \end{tikzpicture}
.  There is a special environment for lists of formulae which can be rearranged in multiple columns:
\begin{formulalist} \formula{$1+1$} \formula{$f(x)$} ... \end{formulalist}
The\begin{formulalist}
can have an optional argument which indicates the number of columns. This is currently not used.
Please note that the use of alignstyle formulae, PSTricks images and TikZ pictures requires the
latex_formula_renderer
plugin; see below for more information.  Everything of the form

Enumerations:
 Ordered enumerations with
\begin{enumerate} \item ... \end{enumerate}
.  Unordered enumerations with
\begin{itemize} \item ... \end{itemize}
.
 Ordered enumerations with

Source code:
 Inline with
\code{lang}{...}
or\code{lang}...
, wherelang
specifies the language and
can also be any other character than{
and[
which marks both the beginning and the end of the inline code.  Block with
\begin{codelisting}{lang} ... \end{codelisting}
.
The language field is currently passed unprocessed to pygments.
 Inline with

Controls like
\\
and\newpar
.  Section headers like
\chapter{...}
,\section{...}
,\subsection{...}
andsubsubsection{...}
. 
Theorem environments:

\begin{definition} ... \end{definition}
; 
\begin{definitions} ... \end{definitions}
; 
\begin{lemma} ... \end{lemma}
; 
\begin{proposition} ... \end{proposition}
; 
\begin{theorem} ... \end{theorem}
; 
\begin{corollary} ... \end{corollary}
; 
\begin{example} ... \end{example}
; 
\begin{examples} ... \end{examples}
; 
\begin{remark} ... \end{remark}
; 
\begin{remarks} ... \end{remarks}
; 
\begin{proof} ... \end{proof}
.
To add a QED sign at the end of an environment, use
\qed
inside the environment. This is done automatically forproof
environments.Also, the environments have an optional title argument:
\begin{theorem}[Fermat's Last Theorem] ... \end{theorem}


Labels
\label{...}
are recognized in some contexts (section headers and theorem environments) and can be refered to with\ref{...}
or\ref[Text]{label}
.  URLs can be inserted with
\url{...}
and hyperlinks with\href{url}{text}
.  Short texts in foreign languages can be marked with
\foreignlanguage{language}{text}
.  Arbitrary unicode symbols can be inserted with
\symbol{...}
, where the decimal representation must be used. 
\noindent
and\setlength{...}{...}
are ignored.  Images can be inserted with
\includegraphics{filename}
or\includegraphics[...]{filename}
. The optional argument is a commaseparated list ofkey=value
pairs, where we support the keyswidth
,height
, andalt
(for the<img alt=""
argument in HTML). The width and height values can be of the following forms: If the unit ends with
\textwidth
resp.\textheight
, the value before will be interpreted as a fractional value (or 1 if there is nothing before) and converted to a percent value in HTML output.  If the unit ends with
cm
, it will be converted toem
in HTML output.  Otherwise, the unit will be expected to be a unitless number and will be taken as pixel size in HTML output.
 If the unit ends with
 Tables can be set with
\begin{tabular}{...} ... \end{tabular}
. Both\hline
and\cline{...}
are supported, and the argument of\begin{tabular}
can consist out of
,l
,r
andc
.  Pictures can be grouped with
\begin{picturegroup} \picture{title}{commands} ... \end{picturegroup}
. Thecommands
can be\includegraphics
, TikZ pictures, PSTricks pictures, etc.
LaTeX compatibility
Almost everything listed above is compatible to LaTeX, except:
 The
\begin{blockquote} ... \end{blockquote}
environment.  The formula list environment
\begin{formulalist} \formula{...} ... \end{formulalist}
.  The picture group environment
\begin{picturegroup} \picture{title}{commands} ... \end{picturegroup}
.  The code command
\code
and environment\begin{codelisting} ... \end{codelisting}
.  The pixel width/height and alternative text of
\includegraphics[...]{...}
.
See below how for definitions in LaTeX which will allow to use almost all of these constructs in LaTeX documents.
Block quotes
The block quote environment blockquote
can be defined in LaTeX as follows:
\newenvironment{blockquote}% {\begin{quote}}% {\end{quote}}
Formula list
The formula list environment formulalist
can be defined in LaTeX as follows:
\usepackage{ifthen} \newenvironment{formulalist}[1][1] {% \def\formulalistcols{#1}% \begin{list}{}{\rightmargin0.5cm\leftmargin+0.5cm}\item[]% \ifnumequal{\formulalistcols}{1}{\begin{flushleft}}{\begin{multicols}{#1}}% \long\def\formula##1{\par\noindent##1}% }% {% \ifnumequal{\formulalistcols}{1}{\end{flushleft}}{\end{multicols}}% \end{list}% }
Picture group
The picture group environment picturegroup
can be defined in LaTeX as follows:
\newenvironment{picturegroup} {% \begin{center}% \renewcommand{\arraystretch}{0.2}% \lineskip=10pt\baselineskip=0pt% \long\def\picture##1##2{\begin{tabular}[b]{c}\mbox{##2}\\\mbox{##1}\end{tabular}}% }% {% \end{center}% }
Code listings
The \code
command and the codelisting
environment can be defined in LaTeX as follows using the listings
package:
\usepackage{listings} \newcommand{\code}[1]{\lstset{language=#1}\lstinline} \lstnewenvironment{codelisting}[1]{\lstset{language=#1}}{}
Note that listings
is known to have problems with Unicode. Alternatively, you might be able to use the minted
package.
Formulae backend
There are two available formulae backends:
 one based on the
latex_formula_renderer
plugin;  one based on MathJax.
You can choose which one by setting the LATEX_FORMULA_RENDERER
configuration variable; default is latex_formula_image_renderer
, which is based on the latex_formula_renderer
plugin. See conf.py.sample
for more information.
The first plugin allows special features the second doesn't:

align
environments (see the AMSMath documentation);  XYpic diagrams (see the XYPic user guide);
 PSTricks graphics (see here for more information);
 TikZ pictures (see here for more information).
You need an installed LaTeX distribution for this to work, with some extra tools. See the latex_formula_renderer
plugin for details.
Required Translations
You need to add the following translations to your theme if you use theorem environments:
MESSAGES = { 'math_thm_name': 'Theorem', 'math_prop_name': 'Proposition', 'math_cor_name': 'Corollary', 'math_lemma_name': 'Lemma', 'math_def_name': 'Definition', 'math_defs_name': 'Definitions', 'math_proof_name': 'Proof', 'math_example_name': 'Example', 'math_examples_name': 'Examples', 'math_remark_name': 'Remark', 'math_remarks_name': 'Remarks', }
Suggested Configuration:
# Determines how the formulae are rendered. Possibilities: #  "latex_formula_image_renderer": renders formulae as graphics and includes them. #  "latex_formula_mathjax": inserts MathJax code. LATEX_FORMULA_RENDERER = "latex_formula_image_renderer" # When "latex_formula_image_renderer" is selected as the formula renderer, # the formulae colors and scale can be set here: # # The color must be given as an RGB triple with components in range [0, 1]. # Here, (0, 0, 0) is black and (1, 1, 1) is white. LATEX_FORMULA_COLOR = (0., 0., 0.) # # The formula scale determines the effective size of the formulae. # Check what looks good with your theme's main font. LATEX_FORMULA_SCALE = 1.25
Requirements:
 latex_formula_renderer (Nikola plugin)
Issues? Questions?
You can report issues with this plugin and request help via GitHub Issues.