jakeonrails

# Assuming all the methods called here also return true/false,
# use the logical composition operators to create a final result
# which can short-circuit if one of the methods fails:
def composed_method
  frobulate_widgets and refrobulate_widgets and confribulate_frobulations
end

jakeonrails

#!/usr/bin/env ruby

require 'benchmark'

REGEXPS = [
  /^no such file to load -- (.+)$/i,
  /^Missing \w+ (?:file\s*)?([^\s]+.rb)$/i,
  /^Missing API definition file in (.+)$/i,
  /^cannot load such file -- (.+)$/i,
]

jakeonrails

require 'net/http'
require 'xmlsimple'
url = "http://www.user-agents.org/allagents.xml"
xml_data = Net::HTTP.get_response(URI.parse(url)).body
data = XmlSimple.xml_in(xml_data)
agents = data['user-agent'].select{|agent| type = agent["Type"].first; type.include?("R") || type.include?("S")}
agent_names = agents.collect {|agent| agent["String"].first}

jakeonrails

# A small DSL for helping parsing documents using Nokogiri::XML::Reader. The
# XML Reader is a good way to move a cursor through a (large) XML document fast,
# but is not as cumbersome as writing a full SAX document handler. Read about
# it here: http://nokogiri.org/Nokogiri/XML/Reader.html
# 
# Just pass the reader in this parser and specificy the nodes that you are interested
# in in a block. You can just parse every node or only look inside certain nodes.
# 
# A small example:
# 

jakeonrails

<h1>Categories</h1>

<% @categories.each do |category| %>
  <ul class="X">
    <li>
      <h5><%= link_to category.name, category %></h5>
    </li>
  </ul>
<% end %>