1 files changed, 68 insertions, 0 deletions
diff --git a/lib/rdoc/markup/to_joined_paragraph.rb b/lib/rdoc/markup/to_joined_paragraph.rb
new file mode 100644
index 0000000000..d91eb439f0
--- /dev/null
+++ b/lib/rdoc/markup/to_joined_paragraph.rb
@@ -0,0 +1,68 @@
+##
+# Joins the parts of an RDoc::Markup::Paragraph into a single String.
+#
+# This allows for easier maintenance and testing of Markdown support.
+#
+# This formatter only works on Paragraph instances.  Attempting to process
+# other markup syntax items will not work.
+
+class RDoc::Markup::ToJoinedParagraph < RDoc::Markup::Formatter
+
+  def initialize # :nodoc:
+    super nil
+  end
+
+  def start_accepting
+  end
+
+  def end_accepting
+  end
+
+  def accept_paragraph paragraph
+    parts = []
+    string = false
+
+    paragraph.parts.each do |part|
+      if String === part then
+        if string then
+          string << part
+        else
+          parts << part
+          string = part
+        end
+      else
+        parts << part
+        string = false
+      end
+    end
+
+    parts = parts.map do |part|
+      if String === part then
+        part.rstrip
+      else
+        part
+      end
+    end
+
+    # TODO use Enumerable#chunk when ruby 1.8 support is dropped
+    #parts = paragraph.parts.chunk do |part|
+    #  String === part
+    #end.map do |string, chunk|
+    #  string ? chunk.join.rstrip : chunk
+    #end.flatten
+
+    paragraph.parts.replace parts
+  end
+
+  alias accept_block_quote     ignore
+  alias accept_heading         ignore
+  alias accept_list_end        ignore
+  alias accept_list_item_end   ignore
+  alias accept_list_item_start ignore
+  alias accept_list_start      ignore
+  alias accept_raw             ignore
+  alias accept_rule            ignore
+  alias accept_verbatim        ignore
+
+end
+