code: function isAtCodePoint(stream) {
  	const code = stream.peek();
  
  	// between quotes, looks like an empty attribute value
  	return (isQuote(code) && getPrevCode(stream) === code)
  		// between tags, e.g. > and <
  		|| (code === 60 /* < */ && getPrevCode(stream) === 62 /* > */)
  		// on empty line
  		|| (isLineBreak(code) && reEmptyLine.test(stream.buffer.lineForRow(stream.pos.row)));
  }
docs: Check if stream is currently at edit code point
  @param  {BufferStreamReader}  stream
  @return {Boolean}