Find & replace notepad++ using regular expression

Question

I want to find text like },1{ },12{ and replace this with },{.

I need regular expression to match word like },digit{.

I have tried this but its not matching exactly:

[^\}][^\,][^\d][^\{]

Tim Biegeleisen · Accepted Answer · 2019-02-06T07:20:51.787

2

Here is one way to do this using lookarounds. Try the following find and replace in regex mode:

Find:    (?<=\},)\d+(?=\{)
Replace: (leave empty)

This regex targets one or more digits positioned as you described, and then replaces them with nothing, effectively removing them.

Demo

edited Feb 06 '19 at 07:20

answered Feb 06 '19 at 07:16

Tim Biegeleisen

I'm sorry, but this is not working in the regex101 site. Which parser are you choosing? – Dhananjai Pai Feb 06 '19 at 07:19
The question asked has nothing to do with Regex101, it is about NPP, where my answer should be working. – Tim Biegeleisen Feb 06 '19 at 07:21
Cool. I just asked, since I couldn't get it to work on a playground and didn't have NPP installed on my current machine! – Dhananjai Pai Feb 06 '19 at 07:22
@DhananjaiPai If you open my Regex101 demo link, and scroll down to the substitutions section, you will see that it is working. – Tim Biegeleisen Feb 06 '19 at 07:24
But as you can see, it takes 49 steps whereas a simpler method takes only 13 steps and is faster? and by a magnitude of about 4x refer : https://regex101.com/r/ciKbse/1 – Dhananjai Pai Feb 06 '19 at 07:28

Dhananjai Pai · Answer 2 · 2019-02-06T07:30:13.053

1

Try this \},\d+\{ replace with },{ as mentioned.

Should match for },{ exactly and any digits in between

This is faster than lookahead and takes fewer steps (13)

as compared to 49 with lookaheads (?<=\},)\d+(?=\{) [ https://regex101.com/r/cqlHCo/1 ]

edited Feb 06 '19 at 07:30

answered Feb 06 '19 at 07:16

Dhananjai Pai

how to search for string instead of } – Omi Feb 06 '19 at 07:28
give me an example @Omi :) – Dhananjai Pai Feb 06 '19 at 07:29
e.g `'testset_id' : string` string can be variable – Omi Feb 06 '19 at 07:31
is the key going to be a constant ? 'testset_id' and I assume you want to select anything that comes after this instead of `string` ? – Dhananjai Pai Feb 06 '19 at 07:33
1

@Omi It is rude to change your question after others have answered. – Tim Biegeleisen Feb 06 '19 at 07:34
Since it is very different from actual question, you could give all the details and post a new question so that you may get better answers than what I give in comments. :) Please close this question and accept the best answer – Dhananjai Pai Feb 06 '19 at 07:34
hey @TimBiegeleisen not changing the question just asking for help. dont mind please – Omi Feb 06 '19 at 07:35
sure thanks. I will ask another question. is there any way to add related question or link question. – Omi Feb 06 '19 at 07:38
@DhananjaiPai added new question https://stackoverflow.com/questions/54548778/need-regular-expression-to-match-specific-pattern-in-notepad – Omi Feb 06 '19 at 07:47