CODEWITHSUNDEEP
regexvim
chikitin
chikitin

Reputation: 781

Adding a constant to numbers matching some criteria

I have a very large text file that I have opened it in VIM and I need to add 1 to numbers matching some criteria. for example:

Comment 1
Comment 2

[p2,0,0,115]Live! ConcertGrand  
[p2,2,104,5]Live! PopGrand  
[p2,3,104,4]Live! RockPiano 
[p2,4,104,3]Live! AmbientPiano
End of file.

and I'd like to transform this (by adding say 1 to the second element of the list) to

Comment 1
Comment 2

[p2,1,0,115]Live! ConcertGrand  
[p2,3,104,5]Live! PopGrand  
[p2,4,104,4]Live! RockPiano 
[p2,5,104,3]Live! AmbientPiano
End of file.

How can I do this in vim, please?

I have tried:

%s/\[p\zs\d\+\(,\d\+\)\=/\=(1+str2nr(submatch(1)))/

But it does not work. Any help would be greatly appreciated. CS

Upvotes: 2

Views: 103

Answers (1)

Sardorbek Imomaliev
Sardorbek Imomaliev

Reputation: 15390

Do you really need to do this with search and replace? Because there is builtin functionality for addition and subtraction.

:h CTRL-A

CTRL-A: Add [count] to the number or alphabetic character at or after the cursor.

{Visual}CTRL-A: Add [count] to the number or alphabetic character in the highlighted text. {not in Vi}

So you basically could use VISUAL-BLOCK selection on your column of numbers and press CTRL-A and it will add 1 to all of them

If it is more complicated you could use macro

Upvotes: 3

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