= Challis: a soft lightweight cloth (usually printed)

Challis is a lightweight markup language along the lines of Markdown
and Textile.  It focuses on a simple implementation while still being
friendly to authors.


== Usage

Challis uses the default `to_html` calling convention:

---
Challis.new(source).to_html
---

== Tutorial

Paragraphs are seperated by empty lines.

Unordered lists are marked by `*`, ordered lists with `#`, and they
can nest:

* unordered list

  # one
  # two
  # three

* another item of the unordered list.

  this paragraph belongs to the same item.

Only paragraph indentation matters, so you could have typed as well:

* another item of the unordered list.

  this paragraph
belongs to
the same item.

Definition lists are marked by `::`:

foo:: bar

quux:: meh

Verbatim code is written between lines of `---`, raw HTML can be
inserted between `---html` and `---`.

---
class Challis
  ...
end
---

" Block quotes are introduced by a double-quote and whitespace.

  Of course, they nest as well.

Headers are marked up with `=`:

= Level 1 header (h1)
== two
=== three
==== four

#assigning-ids If the first word of a header, list item, or paragraph
is #foo, this will assign an `id=` for the element.

There is various inline formatting: *italic*, **bold**, you can do
hard linebreaks\\
and markup `code` (also like ``this``, if you want to include backquotes),
of course you can [create links http://github.com/chneukirchen/challis]
or link to plain URLs like this: [http://github.com/chneukirchen/challis].

HTML special chars are escaped with the exception of entities
(e.g. ©) which are left as-is.

Any character can be escaped by writing a \\ before it: `void\*`.

Insert images with double braces:

[[alt text here... http://example.org/img.jpg]]

{{example
This defines a `<div class="example">`.

It can span several paragraphs or more complex things.
}}

Sometimes it is useful {foo to markup spans of text} (= `<span class="foo">`).

== Cheatsheet

---
*italic*  **bold**  `code`  linebreak\\  {span ...}
[url]  [link text url]  [[alt text imageurl]]

* unordered     # ordered       definition:: list     " blockquote
* list          # list          another term:: defn   also quoted

= header 1      {{class names   = #id header
== header 2     }}              * #id you can link to this item
---


== Miscellaneous

The implementation is Regexp-driven, but the markup was designed for that.

This is the hardest thing I ever wrote.


== Copyright

Copyright (C) 2009 [Christian Neukirchen http://purl.org/net/chneukirchen]

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to
deal in the Software without restriction, including without limitation the
rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
sell copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER 
IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.