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I need to backup the registers and settings of a limited group of files. I'm more interested in what can be saved in a viminfo file, less interested in sessionss.

I'm having a problem reading viminfo file upon BufReadPre.

au BufReadPre,FileReadPre  *.md if expand('<amatch>') =~ '/path/to/file/\d\{3}-' | 
:verbose rv c:/Users/path/to/viminfo.vim

If I open a file that matches the above regex, everything's ok: the viminfo file is read.

However, if I open subsequent files (that also match the above regex) using eg. :e myfile.md, there is no indication that the viminfo file is read (using :mess).

This is driving me nuts!! Can you help please?

BTW: I'm logging events and can see quite clearly that BufReadPre is being triggered on the occasions mentioned above.

" ftplugin/markdown.vim

function! Dev_autocommands_enter()
            :let g:style="design"
            :set fenc=utf8
            :set lines=34
            :set cursorline
            :set wildmenu
            :set wildmode=full
            :verbose rv c:/Users/path/to/_dev/testing/vim/macros/viminfo-registers.vim
            :map <C-j> :bprev<CR>
            :map <C-k> :bnext<CR>
            :nmap <A-o> o<ESC>k
            :nmap <A-O> O<ESC>j
endfunc

if !exists("mdCmds_loaded")
    augroup mdCmds
        autocmd!
        au BufReadPre,FileReadPre  *.md if expand('<amatch>') =~ '/path/_dev/testing/\d\{3}-' | 
            :call Dev_autocommands_enter()
        au BufUnload *.md if expand('<amatch>') =~ '/path/_dev/testing/\d\{3}-' | 
            \ :verbose wv c:/Users/path/to/_dev/testing/vim/macros/viminfo-registers.vim
    augroup end
    let mdCmds_loaded = 1
endif

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  • If the code posted isn't the actual code, then perhaps you could share a closer example? The code talks about a viminfo file, but later you say function. Also, assuming ftplugins/the FileType event isn't good enough for this, you could try using BufRead and BufNewFile—those are what is typically used for filetype-detection.
    – D. Ben Knoble
    Jul 13, 2021 at 17:47
  • Also looks like you're missing endif and a continuation marker `\`
    – D. Ben Knoble
    Jul 13, 2021 at 17:47
  • Actually, I suspect that's the issue: the rv command could be run at vimrc time instead of installed as the autocommand. Can you check :autocmd {your-group}?
    – D. Ben Knoble
    Jul 13, 2021 at 17:48
  • No need to add "edit" markers. The goal is for the question to read fluidly and clearly. OTOH, I'm not sure the image adds anything. Have you considered using sessions?
    – D. Ben Knoble
    Jul 14, 2021 at 17:00
  • I would start with simplifying the whole thing. First thing fixing is adding the :endif commands. I actually wonder, why you did not get an error message Jul 15, 2021 at 7:10

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