Re: Parsing PHP

Hi Nikhil, There are a number of choices already out there. In phpDocumentor (http://www.phpdoc.org) is a parser that is based on the tokenizer. Also available in PEAR CVS is the PHP_Parser, which is a generated parser based on PHP's own zend_language_parser.y (http://cvs.php.net/cvs.php/pear/PHP_Parser?login=2) Regards, Greg -- phpDocumentor http://www.phpdoc.org Nikhil G. Daddikar wrote:

I am using PHP to develop and web app. The app also has a scripting language for the *end user*. I was thinking if I could expose a very simple subset of PHP to them (foreach, if-then-else, variable assignments and comments) and then simply "eval" it. But I don't want them to use calls like system or do infinite loops etc. that will screw up the system. I was thinking if I had a PHPparser that returns tokens, then I can eliminate the call to unwanted funtions, etc. Any ideas on how I should proceed? Thanks.