使用可以正常使用“ go fmt”工具的Vim进行注释

Question

Golang has a tool that's called 'gofmt' which formats your code. I'm using the vim-go plugin which fires the 'gofmt' tool every time when I save a file.

Golang uses tabs for indention. I marked the tabs as [ ] in the following examples.

Here's a problem which I've run:

I have the following code:

func main() {
[  ]if true {
[  ][  ]do.Something()
[  ]}
}

I need to comment the if clause. So, if I comment it like the following(I'm using nerd-commenter):

func main() {
//[  ]if true {
//[  ][  ]do.Something()
//[  ]}
}

Gofmt formats it to:

func main() {
[  ]//[  ]if true {
[  ]//[  ][  ]do.Something()
[  ]//[  ]}
}

If I do this:

func main() {
[  ]//if true {
[  ][  ]//do.Something()
[  ]//}
}

Gofmt formats it to this:

func main() {
[  ]//if true {
[  ]//do.Something()
[  ]//}
}

I need to comment the if clause like the following:

func main() {
[  ]//if true {
[  ]//[  ]do.Something()
[  ]//}
}

Then Gofmt won't change the commented block. How I can do this?

Answer 1

The way I do this is with block mode insertion.

• Put your cursor on the i of if.
• Press <C-v> to start insert mode, then jj to move it down two lines.
• Press I to enter "Visual-Block insert", which will insert text at the start of the block selection for every line (see v_b_I).
• Press //<Esc> to add // and leave visual block insert mode.

Which should give you exactly what you want: