= HAML (XHTML Abstraction Markup Language)
HAML is a markup language that's used to cleanly and simply describe the XHTML
of any web document without the use of inline code. HAML functions as a
replacement for inline page templating systems such PHP, RHTML, and ASP.
However, HAML avoids the need for explicitly coding XHTML into the template,
because it iself is a description of the XHTML, with some code to generate
dynamic content.
== Features
* Whitespace Active
* Well-formatted XHTML
* DRY
* Follows styles common in CSS
== Using HAML as a Rails plugin
Write Rails templates with the .haml extension. Example:
%html
%head
%title= "Teen Wolf (1985)"
%body
#contents
%h1 "A highschooler discovers that he is a werewolf"
%ul.cast
%li "Scott Howard"
%li "Rupert 'Stiles' Stilinski"
%li "Lisa 'Boof' Marconi"
%li "Lewis"
Would result in this XHTML:
<html>
<head>
<title>Teen Wolf (1985)</title>
</head>
<body>
<div id="contents">
<h1>A highschooler discovers that he is a werewolf</h1>
<ul class="cast">
<li>Scott Howard</li>
<li>Rupert 'Stiles' Stilinski</li>
<li>Lisa 'Boof' Marconi</li>
<li>Lewis</li>
</ul>
</div>
</body>
</html>
You can access instance variables in HAML templates the same way you do in ERb templates.
file: app/controllers/movies_controller.rb
class MoviesController < ApplicationController
def index
@title = "Teen Wolf"
end
end
file: app/views/movies/index.haml
#content
.title
%h1= @title
Would produce the following HTML:
<div id="content">
<div class="title">
<h1>Teen Wolf</h1>
</div>
</div>
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Copyright (c) 2006 Hampton Catlin
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