Hi list,
LaTeX beamer is a special LaTeX class to build nice looking
presentations. There have been discussion in the the list and on the
tracker about adding this as a target for txt2tags. Some patches have
also been proposed. Some people have also proposed a bank of
pre/postproc rules to generate such files. (see on the tracker)
imho, it would be better to not have such a target in the core of
txt2tags. Possible reasons are this is not KISS, as if we do that for
the beamer class, why not doing that for other popular classes like
report, book or whatever...
However, rules banks are difficult to write and to read. So I would like
to introduce a way to get beamer presentations using the basic code for
templates that I have just posted on the list.
Here is a non-intrusive and tweaking friendly way of getting the beamer
target done. As a proof of concept, I have attached three files,
- beamer.conf.t2t: a config file to convert into the right markup
- beamer.tex : a template file with a basic theme
- talk.t2t: source code for the talk
To get the pdf, you have to do the following commands (with txt2tags
patched with template.patch)
txt2tags -C beamer.conf.t2t -T beamer -t tex talk.t2t
pdflatex talk.tex
(I borrowed graphics from the artwork section of the website
http://txt2tags.sourceforge.net/art.html, remove them in talk.t2t or
download them)
In order to not introduce new markup, I have choosen to use the
subsections as titles and delimiters for the slides. It has also the
advantages that if you simply do a
txt2tags -t html talk
you also get a fairly readable HTML file.
Note that I am not expecting this choice (and others) I have made to
satisfy all of you (if any :-) ). My point is more to convince you that,
with template files, it is really easy to customize a beamer
presentation your way.
Comments and improvements welcome!
Emmanuel
PS: If you intend to modify the template file, be aware that given the
special meaning of % in both Latex and Python strings, you should be
very cautious and always double the %s in your latex comments (otherwise
you will get rather cryptic txt2tags errors: the template patch has to
be improved in this regard)
% txt2tags proc for beamer
%% subsections define frame titles
%% dirty hack with <invisible> to close frames
%!postproc(tex): '\\section{(.*)}' '\\end{frame}\n\\section{\1}\\addtocounter{framenumber}{-1}\\begin{frame}<invisible>'
%!postproc(tex): '\\subsection{(.*)}' '\\end{frame}\n\\subsection{\1}\\begin{frame}\n\\frametitle{\1}\n'
%% Carefull with verbatim
%!postproc(tex): '\\subsection\*{(.*)}' '\\end{frame}\n\\subsection{\1}\\begin{frame}[containsverbatim]\n\\frametitle{\1}\n'
% beamer is OK with default itemize
%!postproc(tex): '\\begin{compactitem}' '\\begin{itemize}'
%!postproc(tex): '\\end{compactitem}' '\\end{itemize}'
%% Enumerate yields animations
%!postproc(tex): '\\begin{compactenum}' '\\pause\\begin{enumerate}[<+->]'
%!postproc(tex): '\\end{compactenum}' '\\end{enumerate}'
%% Beamer specifics
% Description Lists are blocks
%!postproc(tex): '\\begin{compactdesc}' '\\begin{block}<o...@0>{}'
%!postproc(tex): '\\item\[(.*)\]' '\\end{block}\n\\begin{block}{\1}'
%!postproc(tex): '\\end{compactdesc}' '\\end{block}{}'
%!preproc(tex): PAUSE 'LATEXBEAMERP'
%!postproc(tex): LATEXBEAMERP '\\pause'
%!preproc(): PAUSE ''
% Correctly coloured tables
%!postproc(tex):'\\pause\} \\\\' '} \\pause\\\\'
%!postproc(tex):'\\pause \\\\' '\\pause\\\\'
%% Weird but necessary...
%!postproc(tex):'(\\end{tabular})' '\1\\begin{tabular}{c}\\end{tabular}'
\documentclass[table]{beamer}
\usepackage[%(ENCODING)s]{inputenc} %% char encoding
\usepackage[T1]{fontenc}
\usepackage{lmodern} %% Better PDF rendering with these fonts
\usepackage{graphicx} %% For graphics
%%\usepackage{paralist} %% no need for compact lists
\usepackage[normalem]{ulem} %% needed by strike
\usepackage{%(STYLE)s} %% user defined
%% Beamer parameters
\usetheme{Madrid}
\setbeamertemplate{navigation symbols}{}
\title{%(HEADER1)s}
\author{%(HEADER2)s}
\subtitle{%(HEADER3)s}
\institute{INSTITUTE}
\date{\today}
\pgfdeclareimage{logo}{logo}
\logo{\pgfuseimage{logo}}
\begin{document}
\rowcolors[]{1}{blue!20}{blue!10}
\frame[plain]{\titlepage}
\begin{frame}
\frametitle{Outline}
\tableofcontents[hideallsubsections]
\end{frame}
\addtocounter{framenumber}{-1}
\begin{frame}<dummy>
%(BODY)s
\end{frame}
\end{document}
The Title
The Sub-title
Author
% The date will be automatically computed by LaTeX
% It can be overidden by a postproc
%!postproc(tex): "\\today" "Mar. 8, 2010"
% Another field: Institute
%!postproc: INSTITUTE "the institute"
% Another field: Logo
%!postproc: LOGO t2tpowered-white
%% Demo special macro
%!postproc: "P A U S E" "PAUSE"
+ Introduction +
++ This is a Slide ++
And the content can be typeset with **regular** ``txt2tags`` markup.
You can also use bullet list:
- Oh
- Bullets
- Are //so//
- Nice
- as
- are
- sub-bullets
++ Easy Animations ++
With enumerated lists comes //animations//
+ one
+ two
+ three
PAUSE
The keyword ``P A U S E`` can also be used to explicitly PAUSE
pause...
++ Description Lists are Blocks ++
: Block title
Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do
eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim
ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut
aliquip ex ea commodo consequat. Duis aute irure dolor in
reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla
pariatur. Excepteur sint occaecat cupidatat non proident, sunt in
culpa qui officia deserunt mollit anim id est laborum.
:
++ But They Can Also Be Used As Lists ++
: Item lists
- with
- bullets
: Enumeration lists
+ one
+ two
+ three
++ ++
[octus.png]
++ Table (with Colours) ++
|| column1 | column2 |
| val1a | val2a |
| val1b | val2b |
++ Uncovering Line by Line ++
Just add ``P A U S E`` at the end of the line.
|| column1 | column2 | colum3 PAUSE
| val1a | val2a | val3a PAUSE
| val1b | val2b | val3b PAUSE
| val1c | val2c | val3c PAUSE
+ Handling Verbatim +
++ Special Slide ++
**Caveats:**
Verbatim text in ``beamer`` can be very tricky to use.
It has to be in a special slide that does not support animations like the
regular slides.
== Solution (Hack) ==
So we use unnumbered title instead (Latex handles
the sectionning and table of contents anyway)
```
+ Section +
++ A standard slide ++
This is a regular slide with
+ ani
+ ma
+ tions
+
```
== Solution (Hack) cont. ==
With verbatim
```
== A Slide with Verbatim ==
You can insert regular verbatim blocks.
```
this
way
```
```
+ Conclusion +
++ Perspectives ++
Still a lot to do...
++ ++
**Thanks for your attention...**------------------------------------------------------------------------------
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