Find and delete all text after //

[Andre Silva]

Hello,

I need to clean a large .txt file. See the example below:

LINE01 //BLABLABLA01
LINE02 //BLABLA
(…)

I want to delete all text and numbers after the “//” in a given line so it looks like this:

LINE01
LINE02
(…)

Thank you

[Alan Kilborn]

@Andre-Silva

You probably want to eliminate spaces before the // as well.

I’d try this:

• Bring up the Replace window (ctrl+h).
• Find what box: (?-s)(.*?)\s*//.*
• Replace with box: \1
• Search mode: Regular expression
• Wrap around: ticked
• Press the Replace All button.

Learn more about this kind of searching/replacing here: https://notepad-plus-plus.org/community/topic/15765/faq-desk-where-to-find-regex-documentation

[supasillyass]

@Andre-Silva

1. Search
2. Replace…
3. Search Mode: Regular expression
4. Find what: [ ]*//.*$
5. Replace with: (empty string)
6. Replace All

https://www.regular-expressions.info/

[guy038]

Hi, @andre-silva, @alan-kilborn, @supasillyass and All

Here is a third possible regex, just for fun !

SEARCH (?-s)\h*//.*

REPLACE Leave EMPTY

Of course, we, all, suppose that, assuming the text :

LINE01 //BLAB // LABLA01

@andre-silva expect :

LINE01

and not :

LINE01 //BLAB

Cheers,

guy038

[Alan Kilborn]

@guy038 said:

LINE01 //BLAB // LABLA01

Apparently that nuance was forgotten by @supasillyass ! ;)

[supasillyass]

@Alan-Kilborn
Try it 😉

[Alan Kilborn]

@supasillyass said:

Try it

It works; apologies for the mistake.