REXML Trees

Synced with latest HTML5lib.
Added preliminary support (currently disabled) for sanitizing REXML trees.

vendor/plugins/HTML5lib/tests/preamble.rb

@@ -21,3 +21,53 @@ rescue LoadError
     end
   end
 end
+
+module HTML5lib
+  module TestSupport
+    def self.startswith?(a, b)
+      b[0... a.length] == a
+    end
+
+    def self.parseTestcase(data)
+      innerHTML = nil
+      input = []
+      output = []
+      errors = []
+      currentList = input
+      data.split(/\n/).each do |line|
+        if !line.empty? and !startswith?("#errors", line) and
+          !startswith?("#document", line) and
+          !startswith?("#data", line) and
+          !startswith?("#document-fragment", line)
+
+          if currentList == output and startswith?("|", line)
+            currentList.push(line[2..-1])
+          else
+            currentList.push(line)
+          end
+        elsif line == "#errors"
+          currentList = errors
+        elsif line == "#document" or startswith?("#document-fragment", line)
+          if startswith?("#document-fragment", line)
+            innerHTML = line[19..-1]
+            raise AssertionError unless innerHTML
+          end
+          currentList = output
+        end
+      end
+      return innerHTML, input.join("\n"), output.join("\n"), errors
+    end
+
+    # convert the output of str(document) to the format used in the testcases
+    def convertTreeDump(treedump)
+      treedump.split(/\n/)[1..-1].map { |line| (line.length > 2 and line[0] == ?|) ? line[3..-1] : line }.join("\n")
+    end
+
+    def sortattrs(output)
+      output.gsub(/^(\s+)\w+=.*(\n\1\w+=.*)+/) do |match|
+         match.split("\n").sort.join("\n")
+      end
+    end
+
+  end
+end