Quote "draft"

Hi, I present here my idea on the quote string system that I plan to implement based on the ideas given here. - The quoteString() method should return "NULL" when the value is equal to null (php constant) or else an escaped string. - Change "quoteString" method name to only "quote" (preserving the first one as an alias for compat issues). - Add a new placeholder char, for example "#" (please propose others). A value in the position of a "#" should be returned without changes (for example to not escape native SQL functions: insert into date ('id', 'date') values (?, #) with an array => (1, NOW())). - Change common::quoteString() to support the null stuff and change the escape function to str_replace("'", "''", $string); (ISO SQL 2 specs). - Add where needed extensions::quote() method. I can do pgsql and mysql. Comments, ideas, problems, votes are welcome :) Tomas V.V.Cox