Regex for capturing paths containing keywords

Question

I have a string that looks like

/home/user/one.jar:/home/user/two.jar:/home/user/three.jar:/home/user/four.jar

how would I write a regex to match paths containing "two.jar" or "three.jar" so I can filter out these paths later to finally get

home/user/one.jar:/home/user/four.jar?

I tried ^:.*(two|three)\.jar:$ to basically say

Match any string that begins with :
Has any number of characters in between (to match paths like /home/user/
Match by either "two.jar" or "three.jar"
Ends with :

but I don't think I'm approaching this correctly

in your question it appears you are asking to return 'one' and 'three' but you want the result set to return 'two' and 'four'. Question reads a little confusing — user2331566
– user2331566, Commented Aug 5, 2020 at 14:44
I want the result to return "two" and "four" by filtering out "one" and "three" based on the names "one.jar" and "three.jar". Edited the question for clarification — user3613290
– user3613290, Commented Aug 5, 2020 at 14:45
Sorry updated the question to clarify. I actually want the regex to return paths containing "two" and "three" so I can filter these out later and get the final path containing only "one" and "four" — user3613290
– user3613290, Commented Aug 5, 2020 at 14:50

user3613290 · Accepted Answer · 2020-08-05 15:34:03Z

1

Got it to work with

(^|:)([^:]*(two|three)\.jar)

answered Aug 5, 2020 at 15:34

user3613290

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ISHAN JAISWAL · Accepted Answer · 2020-08-05 14:52:30Z

0

Taking this as your problem statement: :/home/user/one.jar:/home/user/two.jar:/home/user/three.jar:/home/user/four.jar

And this as your required solution: home/user/one.jar:/home/user/four.jar

I have written this piece of regex that will help you: (:.+?(?:two|three)\.jar)

This will give you

:home/user/two.jar in Match 1 Group 1

:/home/user/three.jar in Match 2 Group 1

Here is a regex101 link to the solution: https://regex101.com/r/DQMgkg/2

Hope it helped.

answered Aug 5, 2020 at 14:52

ISHAN JAISWAL

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2 Comments

user3613290 Over a year ago

This will grab anything in between "one" and "four". What if I wanted to match the same paths but the given string was instead /home/user/zero.jar:/home/user/two.jar:/home/user/one.jar:/home/user/four.jar:/home/user/three.jar? I need to match paths based on specific jar names, no matter how many paths are before/after/between.

ISHAN JAISWAL Over a year ago

Try this regex (:?\/home\/user.?(?|one|four)\.jar) this should do it. Here is the regex101 link: regex101.com/r/DQMgkg/3

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