How to use filename expansion in a mapping

Question

I have this shorcut in my vimrc that I use all the time (admittedly, I just copied it over from the web):

" bind K to grep word under cursor
nnoremap K :grep! "\b<C-R><C-W>\b"<CR>:cw<CR>

This works excellent, it displays the matched keywards in the window below in my vim session:

This is great, but I would like to create another keyboard shortcut that only searches for the keyword under the cursor for the current file only.

I searched how to do that online and found this command:

:vim /pattern/ % | cw

This works fine if I type it out manually on vim, but I'm trying to create a keyboard shortcut for it using this tutorial:

" bind L to grep word under cursor for current file only
nnoremap L :vim <C-R><C-W>% |<CR>:cw<CR>

This isn't working, it's giving me a syntax error. My question is: how can I add the % option to the above vim command to the keyboard map?

Related: vi.stackexchange.com/q/7722/10604 – D. Ben Knoble♦ Apr 29 '19 at 14:22 — D. Ben Knoble♦, Apr 29 '19 at 14:22

Pie · Accepted Answer · 2019-05-02 04:43:54Z

1

I got it! Just by playing around, I got this to work:

" bind L to grep word under cursor for current file only
nnoremap L :vim <C-R><C-W> %<CR>:cw<CR>

Pie

1759 bronze badges

answered Apr 29 '19 at 9:14

abbood

4994 silver badges18 bronze badges

As you noticed, the space between the pattern and percent is necessary for filename expansion. In the link i posted, there is an explanation for why the bar gave you trouble. – D. Ben Knoble♦ Apr 29 '19 at 14:21

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