regexp help 1

[haddaway]

I need help on a regexp. I am copying files and would like to have a "exclude"-filter. So, I have a filepath:

c:\myfiles\myfile.txt

and the filter in a normal file mask filter:

*.*

or:

*.txt

or a file:
anotherfile.txt

I want to now which file paths that are matching this filter with the help of a regexp. It would be great if I could to the regexp on the whole path (I think that may be faster than converting the path to a filename, please correct me).

Thank you.

 

[B00gyeMan]

Why don't you simply use System.IO.Directory.GetFiles method? You can specify the path, a filter and if it should perform a recursive search...

Details here:

http://msdn2.microsoft.com/en-us/library/system.io.directory.getfiles(VS.80).aspx

 

[haddaway]

yes, I do that, but I want to use both an include and exclude filter. The getfiles helps me with the include, but I also want to exclude on the "included files".

thanks

 

[B00gyeMan]

Although I do not see the benefit of searching through all files and then programatically remove the "excluded" ones instead of filtering them the first time, you can find info on

http://regexlib.com/default.aspx

a cheat sheet here

http://regexlib.com/CheatSheet.aspx

Some useful tools for writing and testing the regexps are

http://www.weitz.de/regex-coach/

and

http://www.ultrapico.com/Expresso.htm

You will need a particular regexp for each particular case.

 

[haddaway]

Thanks for the links!