Re: [Pyparsing] Question/help with pyparsing

[Ralph C. <ra...@in...>]

Hi Vineet,

> That's a good idea. My current plan is to use part of the following
> receipe:
> 
> http://aspn.activestate.com/ASPN/Cookbook/Python/Recipe/496746

It might be better from a security point of view to list what's allowed,
having carefully considered the implications of each opcode, rather than
list what's disallowed.  If you miss an opcode by accident, the former
will cramp what the user can express, the latter will let them escape
your constraints.

Cheers,


Ralph.