Got stuck while using regular expression in notepad++

Question

I have try try use notepad++ for separate the character using comma, after 4 character. but the output is not as expected.

output got:‭‭11,1111,1011,0011,1110,1111,1111,1111,11‬

expected output:‭‭1111,1110,1100,1111,1011,1111,1111,1111‬

I have attached an image.

enter image description here

Answer 1

• Ctrl+H
• Find what: (?:^|\G)....\K
• Replace with: ,
• CHECK Wrap around
• CHECK Regular expression
• UNCHECK . matches newline
• Replace all

Explanation:

(?:^|\G)    # non capture group, beginning of lien OR restart from last match position
....        # 4 any character but newline
\K          # forget all we have seen until this position

Screenshot (before):

Screenshot (after):