lib/sxp.rb in sxp-0.0.4 vs lib/sxp.rb in sxp-0.0.5

@@ -1,5 +1,22 @@
+require 'rational'
+require 'stringio'
+
+if RUBY_VERSION < '1.8.7'
+  # @see http://rubygems.org/gems/backports
+  begin
+    require 'backports/1.8.7'
+  rescue LoadError
+    begin
+      require 'rubygems'
+      require 'backports/1.8.7'
+    rescue LoadError
+      abort "SXP.rb requires Ruby 1.8.7 or the Backports gem (hint: `gem install backports')."
+    end
+  end
+end
+
 require 'sxp/version'
 require 'sxp/extensions'
 require 'sxp/writer'
 
 module SXP
@@ -14,11 +31,11 @@
   #
   # @param  [String, #to_s]          url
   # @param  [Hash{Symbol => Object}] options
   # @return [Enumerable<Object>]
   def self.read_url(url, options = {})
-    require 'openuri'
+    require 'open-uri'
     open(url.to_s, 'rb', nil, options) { |io| read_all(io, options) }
   end
 
   ##
   # Reads all S-expressions from the given input files.
@@ -46,20 +63,20 @@
   #
   # @param  [IO, StringIO, String]   input
   # @param  [Hash{Symbol => Object}] options
   # @return [Enumerable<Object>]
   def self.read_all(input, options = {})
-    Reader.new(input, options).read_all
+    Reader::Scheme.new(input, options).read_all
   end
 
   ##
   # Reads one S-expression from the given input stream.
   #
   # @param  [IO, StringIO, String]   input
   # @param  [Hash{Symbol => Object}] options
   # @return [Object]
   def self.read(input, options = {})
-    Reader.new(input, options).read
+    Reader::Scheme.new(input, options).read
   end
 
   class << self
     alias_method :parse,       :read
     alias_method :parse_all,   :read_all