title: How to mark a region so clang-format won't touch it?
body: <p>For example, in the MySQL++ library there are macros that can be used to define simple structs based on sql table definition, like this:</p>
  
  <pre><code>sql_create_6(stock, 1, 6,
      mysqlpp::sql_char, item,
      mysqlpp::sql_bigint, num,
      mysqlpp::sql_double, weight,
      mysqlpp::sql_decimal, price,
      mysqlpp::sql_date, sdate,
      mysqlpp::Null&lt;mysqlpp::sql_mediumtext&gt;, description)
  </code></pre>
  
  <p>The problem is that clang-format will reformat this in a way that is much more difficult to read (every param on a new line).
  Most code formatters can recognize special format-off / format-on comments, but I haven't found anything like that in the clang-format manual.</p>