CODEWITHSUNDEEP
regexnotepad++
user3125898
user3125898

Reputation: 57

Delete text from Notepad++ REGEX

I want to delete all texts but keep texts that are 32 in length and contain a-fA-F0-9

How can I do it?

I'm using notepad++ btw

Upvotes: 0

Views: 141

Answers (1)

nhahtdh
nhahtdh

Reputation: 56809

Search for:

^(?![a-FA-F0-9]{32}$).*

Replace with (leave blank). Leave . matches new line unchecked.

Test input:

0234020ab023ba023ab0a283924892a5
klsjfs
3298472847298374982374928749827394873942
023abecedf86596783495a28392482a5
0234020ab023ba023ab0a283924892g5

The regex basically search for all lines that doesn't contain ^[a-FA-F0-9]{32}$, which is what you want to keep.

The (?!...) is zero-width negative look-ahead, which looks ahead in the text and allow the match to continue if the text ahead doesn't match the pattern inside. It doesn't consume text (zero-width), which means the match continue from where it were before it enter (?!...).

Upvotes: 2

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