VimFlowy: The Simplest Outliner for VIM
I was quite fond of the WorkFlowy outliner until the sync failed and broke my offline access. It was just lucky that I'd made an export of my data not too long before it failed.
But really, I didn't need sync that much. I just needed a fast outliner. And what could faster than Vim? With a bit of investigation into Vim's code folding capabilities, I came up with a single-file script to turn Vim into a fast and simple outliner.
To install VimFlowy, just copy vimflowy.vim to your $HOME/.vim/ftdetect directory and use a .out extension for your outliner files. You can also use :set filetype=vimflowy if you prefer not to use the .out extension.
Here is what it looks like. You just use <TAB> to open and close the folds, and navigate through your outline.
Here is the full code of vimflowy.vim for the curious.
" " VimFlowy is the simplest outliner for vim. It uses vim's existing code " folding capabilities with some simple configuration. The result is a fast, " powerful outliner using your favourite text editor. " " Install VimFlowy by saving this file to $HOME/.vim/ftdetect/vimflowy.vim " on unix, or $HOME/vimfiles/ftdetect/vimflowy.vim on Windows. " " Save your outliner files with a .out extension for VimFlowy to be " autodetected. Otherwise, use :set filetype=vimflowy from within vim. " " The outliner uses an indentation level of 2 white spaces to create " new levels. You can use vim's default code folding shortcuts to move " throughout your outline, or just use <TAB> to open and close levels. " " The most frequent shortcut keys you will use are: " " <TAB> open or close the current fold " zx close all other folds " dd to delete a fold (when it is closed) " [p to paste it at the current indent level (use with dd to move outlines) " " " Use :help fold-commands in vim for additional shorcuts. " " The fold function consumes blank lines. If you need to separate one " fold from another, use a single dot or a dash on a line by itself. " " Check for updates to VimFlowy at https://rogerkeays.com/vimflowy " autocmd BufRead,BufNewFile *.out set filetype=vimflowy autocmd FileType vimflowy set foldmethod=expr foldexpr=VimFlowyFold(v:lnum) autocmd FileType vimflowy set foldtext=getline(v:foldstart) autocmd FileType vimflowy set shiftwidth=2 expandtab autoindent autocmd FileType vimflowy hi Folded ctermbg=black ctermfg=yellow autocmd FileType vimflowy nnoremap <TAB> za function! VimFlowyFold(lnum) if getline(a:lnum) =~? '\v^\s*$' return VimFlowyFold(a:lnum - 1) endif let this_indent = indent(a:lnum) / &shiftwidth let next_indent = indent(NextNonBlankLine(a:lnum)) / &shiftwidth if next_indent == this_indent return this_indent elseif next_indent < this_indent return this_indent elseif next_indent > this_indent return '>' . next_indent endif endfunction function! NextNonBlankLine(lnum) let numlines = line('$') let current = a:lnum + 1 while current <= numlines if getline(current) =~? '\v\S' return current endif let current += 1 endwhile return -2 endfunctionVimFlowy: The Simplest Outliner for VIM