Short intro to Sinatra

short-and-sweet.rb

#!/usr/bin/env ruby

require 'rubygems'
require 'sinatra'
require 'haml'

get '/' do
  haml :ask
end

post '/' do
  if params['name']
    @name = params['name']
    haml :answer
  else
    redirect '/'
  end
end

__END__

@@ layout
!!!
%html
  %head
    %title= 'lol'
  %body
    %h1= 'oh snap, templates!'
    =yield

@@ ask
%form{ :method => 'POST', :action => '/' }
  What is your name?
  %br
  %input{ :name => 'name', :type => 'text', :size => 30, :placeholder => 'Frodo, Waldo, James, etc.' }
  %input{ :type => 'submit', :value => 'go!' }

@@ answer
%strong
  Hi #{@name}!