Added a convenience class for parsing HTML.

This removes the need for users having to set the `:html` option themselves.

lib/oga.rb

@@ -1,5 +1,8 @@
 require 'ast'
 
 require_relative 'oga/ast/node'
+
 require_relative 'oga/xml/lexer'
 require_relative 'oga/xml/parser'
+
+require_relative 'oga/html/parser'

lib/oga/html/parser.rb

@@ -0,0 +1,19 @@
+module Oga
+  module HTML
+    ##
+    # Low level AST parser for parsing HTML documents. See {Oga::XML::Parser}
+    # for more information.
+    #
+    class Parser < XML::Parser
+      ##
+      # @param [Hash] options
+      # @see Oga::XML::Parser#initialize
+      #
+      def initialize(options = {})
+        options = options.merge(:html => true)
+
+        super(options)
+      end
+    end # Parser
+  end # HTML
+end # Oga

spec/oga/html/parser/element_spec.rb

@@ -0,0 +1,10 @@
+require 'spec_helper'
+
+describe Oga::HTML::Parser do
+  example 'parse an HTML void element' do
+    parse_html('<meta>').should == s(
+      :document,
+      s(:element, nil, 'meta', nil, nil)
+    )
+  end
+end

spec/support/parsing.rb

@@ -23,7 +23,7 @@ module Oga
     end
 
     ##
-    # Parses the given HTML and returns an AST.
+    # Parses the given XML and returns an AST.
     #
     # @param [String] input
     # @param [Hash] options
@@ -32,5 +32,14 @@ module Oga
     def parse(input, options = {})
       return Oga::XML::Parser.new(options).parse(input)
     end
+
+    ##
+    # Parses the given HTML and returns an AST.
+    #
+    # @see #parse
+    #
+    def parse_html(input, options = {})
+      return Oga::HTML::Parser.new(options).parse(input)
+    end
   end # ParsingHelpers
 end # Oga