Class: Pipe

Constants

NameValue
VERSION '0.1.2'
HEADER %q{<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"><channel>}
FOOTER %q{</channel></rss>}

Attributes

NameRead/write?
content R

Public Class Methods

create (&block) 

# File lib/pipe.rb, line 12
  def self.create(&block)
    pipe = Pipe.new
    
    if block.arity.zero?
      pipe.instance_eval(&block)
    else
      block.call(pipe)
    end

    HEADER + pipe.content + FOOTER
  end

new () 

# File lib/pipe.rb, line 24
  def initialize
    @content = ""
  end

Public Instance Methods

feed (url,filters={}) 

# File lib/pipe.rb, line 28
  def feed(url,filters={})
    enum = (filters[:combine_with] == :or ? :any? : :all?)
    filters.delete(:combine_with)

    doc = Hpricot.XML(open(url))

    @content += (doc/:item).select do |item|
      filters.send(enum) { |field,pattern| (item/field).to_s =~ pattern }
    end.to_s
  end