old_contents: import sphinx.parsers
  
  class CStrip(sphinx.parsers.Parser):
      def __init__(self):
          self.rst_parser = sphinx.parsers.RSTParser()
  
      def parse(self, inputstring, document):
          # This setting is missing starting with Sphinx 1.7.1 so we set it ourself.
          document.settings.tab_width = 4
          stripped = []
          for line in inputstring.split("\n"):
              line = line.strip()
              if line == "//|":
                  stripped.append("")
              elif line.startswith("//| "):
                  stripped.append(line[len("//| "):])
          stripped = "\r\n".join(stripped)
          self.rst_parser.parse(stripped, document)
  
new_contents: import sphinx.parsers
  
  class CStrip(sphinx.parsers.Parser):
      def __init__(self):
          self.rst_parser = sphinx.parsers.RSTParser()
  
      def parse(self, inputstring, document):
          # This setting is missing starting with Sphinx 1.7.1 so we set it ourself.
          document.settings.tab_width = 4
          document.settings.character_level_inline_markup = False
          stripped = []
          for line in inputstring.split("\n"):
              line = line.strip()
              if line == "//|":
                  stripped.append("")
              elif line.startswith("//| "):
                  stripped.append(line[len("//| "):])
          stripped = "\r\n".join(stripped)
          self.rst_parser.parse(stripped, document)
  
subject: Fix ReadTheDocs build due to c2rst.