/
nokogiri.rb
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/
nokogiri.rb
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# -*- coding: utf-8 -*-
# Modify the PATH on windows so that the external DLLs will get loaded.
require 'rbconfig'
ENV['PATH'] = [File.expand_path(
File.join(File.dirname(__FILE__), "..", "ext", "nokogiri")
), ENV['PATH']].compact.join(';') if RbConfig::CONFIG['host_os'] =~ /(mswin|mingw)/i
if defined?(RUBY_ENGINE) && RUBY_ENGINE == "jruby"
# The line below caused a problem on non-GAE rack environment.
# unless defined?(JRuby::Rack::VERSION) || defined?(AppEngine::ApiProxy)
#
# However, simply cutting defined?(JRuby::Rack::VERSION) off resulted in
# an unable-to-load-nokogiri problem. Thus, now, Nokogiri checks the presense
# of appengine-rack.jar in $LOAD_PATH. If Nokogiri is on GAE, Nokogiri
# should skip loading xml jars. This is because those are in WEB-INF/lib and
# already set in the classpath.
unless $LOAD_PATH.to_s.include?("appengine-rack")
require 'isorelax.jar'
require 'jing.jar'
require 'nekohtml.jar'
require 'nekodtd.jar'
require 'xercesImpl.jar'
end
end
require 'nokogiri/nokogiri'
require 'nokogiri/version'
require 'nokogiri/syntax_error'
require 'nokogiri/xml'
require 'nokogiri/xslt'
require 'nokogiri/html'
require 'nokogiri/decorators/slop'
require 'nokogiri/css'
require 'nokogiri/html/builder'
# Nokogiri parses and searches XML/HTML very quickly, and also has
# correctly implemented CSS3 selector support as well as XPath support.
#
# Parsing a document returns either a Nokogiri::XML::Document, or a
# Nokogiri::HTML::Document depending on the kind of document you parse.
#
# Here is an example:
#
# require 'nokogiri'
# require 'open-uri'
#
# # Get a Nokogiri::HTML:Document for the page we’re interested in...
#
# doc = Nokogiri::HTML(open('http://www.google.com/search?q=tenderlove'))
#
# # Do funky things with it using Nokogiri::XML::Node methods...
#
# ####
# # Search for nodes by css
# doc.css('h3.r a.l').each do |link|
# puts link.content
# end
#
# See Nokogiri::XML::Node#css for more information about CSS searching.
# See Nokogiri::XML::Node#xpath for more information about XPath searching.
module Nokogiri
class << self
###
# Parse an HTML or XML document. +string+ contains the document.
def parse string, url = nil, encoding = nil, options = nil
doc =
if string.respond_to?(:read) ||
string =~ /^\s*<[^Hh>]*html/i # Probably html
Nokogiri.HTML(
string,
url,
encoding, options || XML::ParseOptions::DEFAULT_HTML
)
else
Nokogiri.XML(string, url, encoding,
options || XML::ParseOptions::DEFAULT_XML)
end
yield doc if block_given?
doc
end
###
# Create a new Nokogiri::XML::DocumentFragment
def make input = nil, opts = {}, &blk
if input
Nokogiri::HTML.fragment(input).children.first
else
Nokogiri(&blk)
end
end
###
# Parse a document and add the Slop decorator. The Slop decorator
# implements method_missing such that methods may be used instead of CSS
# or XPath. For example:
#
# doc = Nokogiri::Slop(<<-eohtml)
# <html>
# <body>
# <p>first</p>
# <p>second</p>
# </body>
# </html>
# eohtml
# assert_equal('second', doc.html.body.p[1].text)
#
def Slop(*args, &block)
Nokogiri(*args, &block).slop!
end
end
###
# Alias for libxml2.
EncodingHandler.alias('CP932', 'Windows-31J')
end
###
# Parser a document contained in +args+. Nokogiri will try to guess what
# type of document you are attempting to parse. For more information, see
# Nokogiri.parse
#
# To specify the type of document, use Nokogiri.XML or Nokogiri.HTML.
def Nokogiri(*args, &block)
if block_given?
builder = Nokogiri::HTML::Builder.new(&block)
return builder.doc.root
else
Nokogiri.parse(*args)
end
end