Can I make a Vim mapping for a single file?

Question

Basically I would like to be able to quickly look up Vim's help pages for specific commands. To do that, I am using this mapping:

nnoremap K :help <C-r><C-w><CR> 

However, I would like to apply this mapping only to my .vimrc (in order to be able to use different lookup documentations for different files).

Is that possible?

Answer 1

K already does keyword lookup but the associated 'keywordprg' option is rarely defined.

Add the snippet below to your ~/.vimrc to get the desired behavior:

augroup vim
    autocmd!
    autocmd FileType vim setlocal keywordprg=:help
augroup END

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Thanks for reminding me to set it up correctly in my own config.