selecting filenames from a dir list

I'm trying to create a subset of file names from a dir listing when many of the files have similar naming structures. for example I use the code:

dirname=pwd;
dirData=dir(dirname);
dirIndex=[dirData.isdir];
fileList={dirData(~dirIndex).name};

and I get a complete listing of the files.

Unfortunately, my files are named:
"Template_001.asc"
"Template_001_spent_fuel_tank1.asc"
"Template_001_spent_fuel_tank2.asc"
"Template_001_payload.asc"
"Template_002.asc"  and so on through "Template_999_payload.asc"

What I need to do is create a matrix/array of just the files that have the base name of

"Template_001.asc"
"Template_002.asc"
"Template_003.asc"
...
"Template_999.asc"
from the populated fileList variable.

Any help would be greatly appreciated.

[per isakson]

I have problems to exactly understand what "base name" means.

[Woody]

It's the subset of all of the files in the fileList variable that only contain "Template_001.asc" "Template_002.asc" "Template_003.asc" all the way to "Template_999.asc". How would I build a subset of just those files from the full listing of the files in fileList?

For example if fileList has: "Template_001.asc" "Template_001_spent_fuel_tank1.asc" "Template_001_spent_fuel_tank2.asc" "Template_001_payload.asc" "Template_002.asc" "Template_002_spent_fuel_tank1.asc" "Template_002_spent_fuel_tank2.asc" "Template_002_payload.asc" "Template_003.asc"

How would I build a list that only contains "Template_001.asc", "Template_002.asc" and "Template_003.asc"?

[dpb]

But if they're in the list you're returning from the previous dir() call, then with the proper wildcard matching they'll be the ONLY ones returned thus eliminating the need to do the selection after the fact.

Solve the problem by avoiding the problem in the first place.

Of course, if you're adamant of going at it the hard way, you can do pattern-matching on the content of the array similarly, but why make it more complex than needs be?

Answer 1

[Azzi Abdelmalek]

A={'Template_001.asc'
'Template_001_spent_fuel_tank1.asc'
'Template_001_spent_fuel_tank2.asc'
'Template_001_payload.asc'
'Template_002.asc'}

out=A(~cellfun(@isempty,regexp(A,'.+(?<=_\d{3}\.asc)','match')))

[Woody]

Excellent! That regexp was where I was having trouble.

[dpb]

But still, why not just select the ones desired to begin with????

[Azzi Abdelmalek]

Are you sure ??? works ?

Answer 2

[dpb]

Far simpler would be to simply return the ones you want...

d=dir([dirname\template_???.asc");
for i=1:length(d)
  %process file d.name(i) here
  ...

Build an appropriate filter for whichever subset you want.