new features added:

[manfredlotz]

Hi Georg, I added new features

• option -S to not search directories recursively
• options -f, -F to check for files with given pattern only Here -f is for a usual file pattern, and -F is for regular expression.

I'm pretty new to Rust. So, probably things can be done better.

Cheers, Manfred

[birkenfeld]

Hi, thanks for the PR! I'll leave a few comments inline.

[manfredlotz]

Do you want me to redo things. Or do you want just to do the needed changes yourself?

[birkenfeld]

I'm fine with both, let me know if you're going to update the PR.

[manfredlotz]

I could do it at the coming weekend. Rust coding speed is slow for me as I'm a very beginner in Rust.

[birkenfeld]

There's no need to hurry :)

[manfredlotz]

As you made changes in the meantime I'm not sure if I should create a totally new pull request when having added my stuff?

[birkenfeld]

You can force-push to the old branch, it should update this PR automatically.

[manfredlotz]

Hm, I made changes but I'm still not sure how to make the changes visible here. FWIW, I did a git push --force

[birkenfeld]

Looks like you pushed to master in your repo, but this PR is for the new-branch branch.

[manfredlotz]

Ok, I switched do new-branch and committed my changes.

I have to admit that I'm not satisfied with what I did, simply because I couldn't figure out how to more elegantly deal with errors when Pattern::new or Reges::new freak out. So I have (very ugly) unreachable expression warning which I didn't want to supress as I hope this can be done in a better way.

[birkenfeld]

Didn't see new changes on the branch, so I went ahead and rebased your master branch, it's now in master. The parsing of the expressions is actually very easy with structopt, as you can see here.

Thanks for the PR!