Re: problem in vim snippets

On Wednesday, November 4, 2015 at 8:16:55 AM UTC-6, Rudra Banerjee wrote:
> Update:
> I found the source of error, but not the solution. This is not in the function or template.
> It is actually in my map to call the function.
> in insertmode, the code is called using:
> inoremap `prg <C-R>=Prog("prg")<cr><CR><Esc>gg=G<C-j>
>
> and this is inserting the 0, I dont know why.
> If I do,
>
> nnoremap `prg :call Prog("prg")<cr><CR><Esc>gg=G<C-j>
>
> everything is fine.
> Kindly help.

By using <C-R>= in insert mode, you are telling Vim, "insert the result of the expression I give you, into the buffer".

Your function has no return value, so I assume the default return value is zero. Thus Vim inserts zero.

Try making your function return an empty string (""), or stick with methods that don't use the expression register (an expression mapping, perhaps, or just move the <Esc> forward to the beginning of the mapping and use the same method as the normal mode mapping).

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