I have a json file and I want to change keys of json file. For example

 name: "John",
 age: 31,
 city:"New York",

I want to make all keys uppercase. How can I do this with min keystroke in Vim?

  • Min keystroke is not always the most convenient.
    – Maxim Kim
    Jan 28 '20 at 12:48
  • @MaximKim may I know the reason why?
    – WitVault
    Jan 28 '20 at 13:01
  • have a look into vimgolf.com as examples. They do min keystrokes that are rarely convenient.
    – Maxim Kim
    Jan 28 '20 at 13:11
  • I understand it may not be intuitive
    – WitVault
    Jan 28 '20 at 13:14
  • :%norm! gUt: does it. Will uppercase everything up to a colon on every line that has one. No effect on lines that don't have a colon in them. Use with a visual selection instead of % if you want that on specific lines only.
    – filbranden
    Jan 28 '20 at 14:34

As I mentioned in comment, min keystrokes are not always the most convenient.

I would go with:


Or, align all text with vim-easy-align:

CTRL-V (and select all keys)

But this has a side effect of all keys aligned with :.

Or without a plugin:

  1. /name
  2. gUiw
  3. j.j.j.

Or with normal command:

  1. vap
  2. :'<,'>norm! wgUiw

'<,'> is inserted automatically

PS, some visuals: enter image description here

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