Chris Lasher wrote: > I would like to create a set of very similar regular expression. In > my initial thought, I'd hoped to create a regular expression with a > variable inside of it that I could simply pass a string into by > defining this variable elsewhere in my module/function/class where I > compile the regular expression, thus making for an easy > substitution.
And Steven Bethard replied: > Can you use the %-formatting operations? This is what I normally do > with a situation like this. It means you have to compile a > new regular expression for each different value you substitute > into the expression, but that's to be expected anyway when you're > trying to check several different regular expressions... > > >>> import re ... > >>> expr = r'(\w*%s\w*)' > >>> re.compile(expr % r'oo').findall(s) > ['Wood', 'Looking'] > >>> re.compile(expr % r'ou').findall(s) > ['You', 'Yourself', 'Through', 'You', 'Your'] Just make sure you use re.escape, in case your interpolated string has regex-sensitive chars. re.compile(expr % re.escape(r'oo')).findall(s) Robert Brewer MIS Amor Ministries [EMAIL PROTECTED] -- http://mail.python.org/mailman/listinfo/python-list
