start_document is working

3 files changed, 60 insertions, 2 deletions

diff --git a/lib/psych.rb b/lib/psych.rb
index 31cd7f6..df00156 100644
--- a/lib/psych.rb
+++ b/lib/psych.rb
@@ -1,3 +1,17 @@
-class Psych
-  VERSION = '1.0.0'
+require 'psych/parser'
+require 'psych/psych'
+
+module Psych
+  VERSION         = '1.0.0'
+  LIBYAML_VERSION = Psych.libyaml_version.join '.'
+
+  # Encodings supported by Psych (and libyaml)
+  ANY_ENCODING      = 1
+  UTF8_ENCODING     = 2
+  UTF16LE_ENCODING  = 3
+  UTF16BE_ENCODING  = 4
+
+  def self.parse thing
+    Psych::Parser.new.parse thing
+  end
 end
diff --git a/lib/psych/parser.rb b/lib/psych/parser.rb
new file mode 100644
index 0000000..736521f
--- /dev/null
+++ b/lib/psych/parser.rb
@@ -0,0 +1,22 @@
+require 'psych/parser/handler'
+
+module Psych
+  ###
+  # YAML parser class.
+  #
+  # Example:
+  #
+  #   parser = Psych::Parser.new
+  #   parser.parse(some_yaml)
+  class Parser
+    attr_accessor :handler
+
+    def initialize handler = Handler.new
+      @handler = handler
+    end
+
+    def parse string
+      parse_string string
+    end
+  end
+end
diff --git a/lib/psych/parser/handler.rb b/lib/psych/parser/handler.rb
new file mode 100644
index 0000000..c3e6f1d
--- /dev/null
+++ b/lib/psych/parser/handler.rb
@@ -0,0 +1,22 @@
+module Psych
+  class Parser
+    ###
+    # Default event handlers used in conjunction with Psych::Parser
+    class Handler
+      ###
+      # Called with +encoding+ when the YAML stream starts.
+      def start_stream encoding
+      end
+
+      ###
+      # Called when the document starts with the declared +version+
+      def start_document version = []
+      end
+
+      ###
+      # Called when the YAML stream ends
+      def end_stream
+      end
+    end
+  end
+end