# Landslide
---
# Overview
Generate HTML5 slideshows from markdown, ReST, or textile.
![python](http://i.imgur.com/bc2xk.png)
Landslide is primarily written in Python, but it's themes use:
- HTML5
- Javascript
- CSS
---
# Code Sample
Landslide supports code snippets
!python
def log(self, message, level='notice'):
if self.logger and not callable(self.logger):
raise ValueError(u"Invalid logger set, must be a callable")
if self.verbose and self.logger:
self.logger(message, level)
Your Markdown source files must be suffixed by .md, .markdn, .mdwn,
.mdown or .markdown
To create a title slide, render a single h1 element (eg. # My Title)
Separate your slides with a horizontal rule (--- in markdown) except at the
end of md files
Your other slides should have a heading that renders to an h1 element
To highlight blocks of code, put !lang where lang is the pygment
supported language identifier as the first indented line
ReStructuredText
Your ReST source files must be suffixed by .rst or .rest (.txt is not
supported)
Use headings for slide titles
Separate your slides using an horizontal rule (---- in RST) except at the
end of RST files
Textile
Separate your slides using ---, just like in markdown
Rendering
Run landslide slides.md or landslide slides.rst
Enjoy your newly generated presentation.html
Or get it as a PDF document if Prince is installed and available on your
system:
$ landslide README.md -d readme.pdf
$ open readme.pdf
Viewing
Press h to toggle display of help
Press left arrow and right arrow to navigate
Press t to toggle a table of contents for your presentation. Slide titles
are links
Press ESC to display the presentation overview (Exposé)
Press n to toggle slide number visibility
Press b to toggle screen blanking
Press c to toggle current slide context (previous and next slides)
Press e to make slides filling the whole available space within the
document body
Press S to toggle display of link to the source file for each slide
Press '2' to toggle notes in your slides (specify with the .notes macro)
Press '3' to toggle pseudo-3D display (experimental)
Browser zooming is supported
Commandline Options
Several options are available using the command line:
-h, --help show this help message and exit
-c, --copy-theme Copy theme directory into current presentation source
directory
-b, --debug Will display any exception trace to stdin
-d FILE, --destination=FILE
The path to the to the destination file: .html or .pdf
extensions allowed (default: presentation.html)
-e ENCODING, --encoding=ENCODING
The encoding of your files (defaults to utf8)
-i, --embed Embed stylesheet and javascript contents,
base64-encoded images in presentation to make a
standalone document
-l LINENOS, --linenos=LINENOS
How to output linenos in source code. Three options
availables: no (no line numbers); inline (inside <pre>
tag); table (lines numbers in another cell, copy-paste
friendly)
-o, --direct-output Prints the generated HTML code to stdout; won't work
with PDF export
-q, --quiet Won't write anything to stdout (silent mode)
-r, --relative Make your presentation asset links relative to current
pwd; This may be useful if you intend to publish your
html presentation online.
-t THEME, --theme=THEME
A theme name, or path to a landlside theme directory
-v, --verbose Write informational messages to stdin (enabled by
default)
-w, --watch Watch the source directory for changes and
auto-regenerate the presentation
-x EXTENSIONS, --extensions=EXTENSIONS
Comma-separated list of extensions for Markdown
-m, --math-output Enable mathematical output using mathjax
Presentation Configuration
Landslide allows to configure your presentation using a cfg configuration
file, therefore easing the aggregation of source directories and the reuse of
them across presentations. Landslide configuration files use the cfg syntax.
If you know ini files, you get the picture. Below is a sample configuration
file:
Don't forget to declare the [landslide] section. All configuration files
must end in the .cfg extension.
To generate the presentation as configured, just run:
$ cd /path/to/my/presentation/sources
$ landslide config.cfg
Macros
You can use macros to enhance your presentation:
Notes
Add notes to your slides using the .notes: keyword, eg.:
# My Slide Title
.notes: These are my notes, hidden by default
My visible content goes here
You can toggle display of notes by pressing the 2 key.
Some other macros are also available by default: .fx: foo bar will add the
foo and bar classes to the corresponding slide <div> element, easing
styling of your presentation using CSS.
QR Codes
Add a QR Code to your presentation by using the .qr keyword:
.qr: 450|http://github.com/adamzap/landslide
Presenter Notes
You can also add presenter notes to each slide by following the slide content
with a heading entitled "Presenter Notes". Press the 'p' key to open the
presenter view.
Registering Macros
Macros are used to transform the HTML contents of your slide.
You can register your own macros by creating landslide.macro.Macro derived
classes, implementing a process(content, source=None) method and returning
a tuple containing the modified contents and some css classes you may be
wanting to add to your slide <div> element. For example:
!python
import landslide
class MyMacro(landslide.Macro):
def process(self, content, source=None):
return content + '<p>plop</p>', ['plopped_slide']
g = landslide.generator.Generator(source='toto.md')
g.register_macro(MyMacro)
print g.render()
These will link the custom.css stylesheet and both the jquery.js and
powerpoint.js files within the <head> section of the presentation html
file.
NOTE: Paths to the css and js files must be relative to the directory
you're running the landslide command from.
Publishing your Presentation Online
If you intend to publish your HTML presentation online, you'll have to use the
--relative option, as well as the --copy-theme one to have all asset links
relative to the root of your presentation;
$ landslide slides.md --relative --copy-theme
That way, you'll just have to host the whole presentation directory to
a webserver. Of course, no Python nor PHP nor anything else than a HTTP
webserver (like Nginx) is required to host a landslide presentation.
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