Regex for string cleaning

Kuler Master 411

Hi there,

I have the following string to be cleaned of 1 and 2 character words unless it's the letter M or F.

EL EL EL EL M EL EL FU S FF EL EL EL E EL

I tried with the following expression but it didn't work quite well.

var output = Regex.Replace(input, @"\b\w{2}\s", "").Trim();

I ended up with "M S E EL"

Could you help me so I can end up with only M?

Would be greatly appreciated. Thanks

0 comments

Answer accepted by question author

Viorel 126.9K Reputation points

2022-07-14T13:36:21.243+00:00

To consider letters only, try this: @"\b(\p{L}{2}|[^MF\s])\b\s*".
Please sign in to rate this answer.

1 person found this answer helpful.
Kuler Master 411 Reputation points

2022-07-14T13:39:42.98+00:00

That's it. It works like a charm. Thank you Viorel
Sign in to comment

Use comments to ask for clarification, additional information, or improvements to the question.

5 additional answers

elizabeth gonzales 0 Reputation points

2025-12-28T09:50:04.83+00:00

var output = Regex.Replace(input, @"\b\w{2}\s", "").Trim();csv1_csv_log (2).txt
Please sign in to rate this answer.

0 comments No comments
Sign in to comment

Use comments to ask for clarification, additional information, or improvements to the question.

Your answer