Automatic Zettelkasten note-link naming scheme

When creating a new link within notes, using the wiki.vim openlink
shortcut (return by default), it will prepend a Zettelkasten-like unique
id based on current time in front of the link.

It will also lowercase it and substitute spaces for dashes.

nvim/.config/nvim/plugin/wiki.vim

@@ -7,6 +7,35 @@ endif
 " filetypes to automatically enable the plugin for, seems to take file endings
 " rather than vim ft
 let g:wiki_filetypes = ['md', 'mkd', 'markdown', 'wiki']
-let g:wiki_link_extension = '.md'
-let g:wiki_link_target_type = 'md'
 let g:wiki_mappings_use_defaults = 1
+
+" wiki automatic link creation
+" add .md to the end of links by default
+let g:wiki_link_extension = '.md'
+" add a link in the format [descr](target) by default
+" not in wiki format [[link|descr]]
+let g:wiki_link_target_type = 'md'
+
+" Creates a Zettelkasten compatible unique datestamp
+function s:Getdatestamp()
+  if !exists("*strftime")
+    :echoerr "Date Stamp creation needs strftime available on system!"
+  endif
+  return strftime("%y%m%d%H%M")
+endfunction
+
+command! Datestamp :echom s:Getdatestamp()
+
+" Appends Zettelkasten timestamp to beginning of links
+function! PrependDatestamp(text) abort
+  " lowercase and replace spaces with dashes (-) to make links uniform
+  let l:text=substitute(tolower(a:text), '\s\+', '-', 'g')
+  " prepend datestamp
+  let l:text=substitute(l:text, '^', s:Getdatestamp() . ' '. '\0', 'g')
+  return l:text
+endfunction
+
+" sets wiki.vim to automatically apply datestamp function to links
+let g:wiki_link_target_map = "PrependDatestamp"
+
+let g:wiki_list_todos = ['[ ]', '[x]']