[Zope] How to check if a string contains some characters??

[Dennis Nichols]

At 3/12/01 04:39 PM, Tino Wildenhain wrote:
>in pure python you can also write:
># -------------------------------------------------
>import re
>
>if re.search(r"[^A-Za-z0-9\.\-_]",string_name):
>         raise Exception("illegal character here.")
>
># -------------------------------------------------
>
>However this is untested. But you get the idea ;)
>re is certainly faster then in-loops.

I didn't test it either, but note that "." is not a special character 
inside the [] pair and that a bare "-" as the first or last character 
stands for itself. So the string could be more clearly written (imho) as just:

     [^A-Za-z0-9._-]

--
Dennis Nichols
nichols@tradingconnections.com