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From: us on 8 Apr 2010 13:58
"Thomas Ibbotson" <thomas.ibbotson(a)gmail.com> wrote in message <hpl4so$r6d$1(a)fred.mathworks.com>...
> I am currently finding files in a directory using the following code:
> re = 'some regular expression';
> f = dir('.');
> matchingFiles = f(cellfun(@(x) ~isempty(regexp(x, re, 'once')), {f.name})).name;
>
> Somehow I feel there must be a better way to do this. Does anyone have any suggestions?
>
> Tom

recently, this - albeit only slightly different - solution has been proposed...

http://www.mathworks.com/matlabcentral/newsreader/view_thread/278520#733158

us
From: Doug Schwarz on 8 Apr 2010 14:33
Thomas Ibbotson wrote:
> I am currently finding files in a directory using the following code:
> re = 'some regular expression';
> f = dir('.');
> matchingFiles = f(cellfun(@(x) ~isempty(regexp(x, re, 'once')),
> {f.name})).name;
>
> Somehow I feel there must be a better way to do this. Does anyone have
> any suggestions?
>
> Tom


Slightly simpler:

matchingFiles = f(~cellfun(@isempty,regexp({f.name},re,'once'))).name;

I might break this up into two statements to make it easier to
understand, but that's pretty much how I would do this task.

--
Doug Schwarz
dmschwarz&ieee,org
Make obvious changes to get real email address.
From: Walter Roberson on 8 Apr 2010 17:18
Doug Schwarz wrote:
> Thomas Ibbotson wrote:
>> I am currently finding files in a directory using the following code:
>> re = 'some regular expression';
>> f = dir('.');
>> matchingFiles = f(cellfun(@(x) ~isempty(regexp(x, re, 'once')),
>> {f.name})).name;
>>
>> Somehow I feel there must be a better way to do this. Does anyone have
>> any suggestions?
>>
>> Tom
>
>
> Slightly simpler:
>
> matchingFiles = f(~cellfun(@isempty,regexp({f.name},re,'once'))).name;
>
> I might break this up into two statements to make it easier to
> understand, but that's pretty much how I would do this task.

You can get away without referencing f again if you prefix re with '^.*' and
suffix it with '.*$' -- then the match would be against the complete string
when a match occurred. You would, though, probably end up with empty cells for
the non-matches, and would need to squeeze those out.
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