C#•3y ago

✅ how to find some common strings in array?

I have following strings:

astra-srv:658712/sys/broker/state/astra-srv:658712_svc_core
astra-srv:658712/sys/broker/state/astra-srv:658712_svc_client_notify
astra-srv:658712/sys/broker/state/astra-srv:658712_svc_mailer
astra-srv:658712/svc

astra-srv:658712/sys/broker/state/astra-srv:658712_svc_core
astra-srv:658712/sys/broker/state/astra-srv:658712_svc_client_notify
astra-srv:658712/sys/broker/state/astra-srv:658712_svc_mailer
astra-srv:658712/svc

I'd like to return

["astra-srv:658712/sys/broker/state", "astra-srv:658712/svc"]

["astra-srv:658712/sys/broker/state", "astra-srv:658712/svc"]

I think I can't even group these strings

Anton•2/27/23, 1:58 PM

No built-in solution, but I think the straightforward solution is optimal

Anton•2/27/23, 1:59 PM

well maybe not optimal actually

remmy_clarke_jr•2/27/23, 2:22 PM

@penance Are you trying to find a known or unknown string?

remmy_clarke_jr•2/27/23, 2:23 PM

You need to define a lot of parameters to solve this problem

remmy_clarke_jr•2/27/23, 2:24 PM

If you know ahead of time what your looking for and you're trying to extract "Frequency" as a feature

remmy_clarke_jr•2/27/23, 2:24 PM

Regex

remmy_clarke_jr•2/27/23, 2:24 PM

easy

remmy_clarke_jr•2/27/23, 2:24 PM

super easy

remmy_clarke_jr•2/27/23, 2:25 PM

If you're trying to find the frequency of an unknown word

remmy_clarke_jr•2/27/23, 2:25 PM

You're need to define some constraints to start searching and grouping within

Rremmy_clarke_jr @penance Are you trying to find a known or unknown string?

SWEETPONYOP•2/27/23, 2:41 PM

unknown strings

Rremmy_clarke_jr If you're trying to find the frequency of an unknown word

SWEETPONYOP•2/27/23, 2:41 PM

oh thanks for the idea

remmy_clarke_jr•2/27/23, 2:41 PM

Can you define some constraints?

SWEETPONYOP•2/27/23, 2:41 PM

yes

remmy_clarke_jr•2/27/23, 2:42 PM

If you can't you're in the area of NLP

remmy_clarke_jr•2/27/23, 2:42 PM

and machine learning

remmy_clarke_jr•2/27/23, 2:42 PM

lol

SWEETPONYOP•2/27/23, 2:42 PM

I thought it will be easy

remmy_clarke_jr•2/27/23, 2:42 PM

You need to define what a word is

remmy_clarke_jr•2/27/23, 2:42 PM

Why?

remmy_clarke_jr•2/27/23, 2:42 PM

"findthefindthemostcommonword"

remmy_clarke_jr•2/27/23, 2:43 PM

How would you find the most common word in this string?

SWEETPONYOP•2/27/23, 2:43 PM

it is easy to find 1 common word in string

SWEETPONYOP•2/27/23, 2:43 PM

but it's harder to find some common in string

remmy_clarke_jr•2/27/23, 2:43 PM

By doing a look ahead?

remmy_clarke_jr•2/27/23, 2:44 PM

You need to extract A feature from the string to define what a word even is

remmy_clarke_jr•2/27/23, 2:44 PM

Define for me the word boundry of the string I just showed you

remmy_clarke_jr•2/27/23, 2:45 PM

There are a few ways to do this depending on your exact requirements

remmy_clarke_jr•2/27/23, 2:45 PM

If you have a non-word character you can split by

remmy_clarke_jr•2/27/23, 2:45 PM

Happy days

Rremmy_clarke_jr "findthefindthemostcommonword"

SWEETPONYOP•2/27/23, 2:46 PM

find

remmy_clarke_jr•2/27/23, 2:46 PM

find?

remmy_clarke_jr•2/27/23, 2:46 PM

Huh?

remmy_clarke_jr•2/27/23, 2:46 PM

That is still doing some kind of look ahead

remmy_clarke_jr•2/27/23, 2:47 PM

I don't know what method you're specifically talking about (A LINQ method?)

remmy_clarke_jr•2/27/23, 2:47 PM

But given a specific input

remmy_clarke_jr•2/27/23, 2:47 PM

Yes

remmy_clarke_jr•2/27/23, 2:47 PM

Its very easy

SWEETPONYOP•2/27/23, 2:47 PM

using regex?

remmy_clarke_jr•2/27/23, 2:47 PM

I just keep looking ahead until Str[n] == Token

remmy_clarke_jr•2/27/23, 2:48 PM

And then scan until the end of the boundry

remmy_clarke_jr•2/27/23, 2:48 PM

Sure

remmy_clarke_jr•2/27/23, 2:48 PM

You can use RegEx

remmy_clarke_jr•2/27/23, 2:48 PM

for that

SWEETPONYOP•2/27/23, 2:48 PM

ok, I will try

remmy_clarke_jr•2/27/23, 2:48 PM

But if your token is unknown you can not

remmy_clarke_jr•2/27/23, 2:51 PM

@penance If you join dev-vc-0 I can better explain your problem to you

remmy_clarke_jr•2/27/23, 2:51 PM

I don't think RegEx will work for you

Rremmy_clarke_jr @penance If you join dev-vc-0 I can better explain your problem to you

SWEETPONYOP•2/27/23, 2:57 PM

I'm sorry but unfortunately, I won't be able to do it now
I will try to use all my leet code power to solve this problem

remmy_clarke_jr•2/27/23, 2:58 PM

Is there a token you can split by that is consistently present in the string?