docs: def open_phrase(self, string, pos):
  
  		"""
  		Helper function of self.parse() handling opening tags.
  
  		Arguments:
  			string (str): The string being parsed.
  			pos (int): The index/position of the opening tag in the string.
  
  		Returns:
  			The (possibly) escaped string, a child phrase if the opening tag
  			was not escaped and otherwise None, and a new tag match, either
  			starting at one index passed the escaped tag or one index passed
  			the closing tag of the child.
  		"""
  
  		# Check for escaping
  		if string[pos - 1] == "\\":
  			# Remove the escape character
  			string = string[:pos - 1] + string[pos:]
  
  			# When removing the escape character, the
  			# pos tag index is pushed one back
  			pos -= 1
  
  			# If the escape character was not itself (double)
  			# escaped we can look for the next tag
  			if pos == 0 or string[pos - 1] != "\\":
  				tag = self.meta.search(string, pos + 1)
  
  				return string, None, tag
  
  		child = Phrase(pos)
  
  		escaped, child = self.parse(string[pos + 1:], child)
  
  		string = string[:pos + 1] + escaped
  
  		tag = self.meta.search(string, child.closing + 1)
  
  		return string, child, tag