How to remove part of a string from another string by keeping some of it conditionally in Java?

I have string and I modify this string using the code below:

The input is:

-f S:\some\keyword\path\to\a\file.c
-d C:some\other\path\to\keyword\another\file.cpp

Open in new window


The code that I use is:

content = content.replaceAll("(?m)^.*?(?=keyword)", "")

Open in new window


The output is this:

keyword\path\to\a\file.c
keyword\another\file.cpp

Open in new window


Now, I would like to change this regexp in such a way that the output will be like this for the same input:

Expected output:

keyword\path\to\a\file.c
-d keyword\another\file.cpp

Open in new window


As you can see, the difference between the previous output and this one is the -d flag in the front. The idea is to keep the -d flag if there is any and do the rest same.

The input data is in one big string. I would prefer to do it in one regexp instead of looping through the lines.

How can I do?

Thanks,
TolgarAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Terry WoodsIT GuruCommented:
Try this:
content = content.replaceAll("(?m)^(-d\\s)?.*?(?=keyword)", "$1")

Open in new window

0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
TolgarAuthor Commented:
Great!
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Java

From novice to tech pro — start learning today.