Re: [Boost-users] Validating file names using regex

From: Jean-Sebastien Vachon (js.vachon_at_[hidden])
Date: 2006-04-12 21:15:33

On Wed, 12 Apr 2006 16:30:26 -0600, Lynn Allan wrote:

> Homework?
> What have you tried .... with what results?
> 
> Jean-Sebastien Vachon wrote:
>> Hi there,
>> 
>> I am sure what I am looking for exist somewhere but I haven't
>> been able to find anything that works in boost::regex.
>> 
>> What I am looking for is a regular expression that will validate
>> a filename according to the specification of the OS (UNIX systems
>> and Windows).
>> 
>> I would be very grateful if someone could provide me with
>> these two expressions (one for Linux and one for Windows).
>> 
>> Later,

Hi,

So far the best expression I have for Windows is:

(((((^([a-z]:\\?)|(^\\\\[^\\;:\'\"<>]+\\[^\\]+\\)))))(((([^\\;:\'\"\<\>]+)\\)*)*)((([^\\;:\'\"<>]*))(\.?([^\\:;\'\"<>]+)))?)

I used Visual RegExp 3.0 to test and debug my expression(s). 
It is a very nice tool. The

For UNIX I am currently using:
((/([^/]+)?)*)(([^/.]*).?([^/])*)

I haven't tested it completely but it seems to do the job.

If you spot any potential problem please let me know.

Later,