In my file, I have many instances of grid[X][Y] where X and Y are variables. I would like to swap all instances to grid[Y][X] (preferably one by one so I can check them).

Examples (especially note the second example):

grid[row + 1][col]

Swap to:

grid[col][row + 1]

Note that X/Y are guarenteed to contain only A-Z, a-z, 1-9, + - (if that helps)


This should do what you want


And yes, I guess all these toothpicks are really needed.

  • 1
    \v would eliminate some of the escapes
    – D. Ben Knoble
    Nov 17 '18 at 2:50

This does what you want

    \v                         Very magic mode
      (\[.+\])                 First group of [...]
              (\[.+\])         Second group of [...]
                            g  Global flag - substitute every instance on each line
                             c Ask flag - ask before each occurence

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