Add follow link command to go to or create link

Automatically chooses whether to create a new link or go to an existing
file, depending on the existence of a link in the current context (i.e.
under the cursor or in selection).

README.md

@@ -6,7 +6,6 @@ start neovim with  `nvim --cmd "set rtp+=$(pwd)" .` to automatically load the fi
 
 ## up next
 
-* automatic switch between follow link / create link
 * text.lua testing
 * action.lua testing?
 
@@ -22,10 +21,11 @@ start neovim with  `nvim --cmd "set rtp+=$(pwd)" .` to automatically load the fi
   * [ ] list filenames
 * [x] link following (to existing anchor)
   * [x] fallback to filename if anchor invalid / not found
-  * [ ] maintain location list of previous jumps
+  * [x] maintain location list of previous jumps
 * [ ] link creation (to existing note)
   * [ ] list existing
   * [ ] create link (md / wiki)
+* [x] allow same command for following/creating link depending on cursor over link or not
 * [ ] link switching (point to another existing note)
 * [ ] note search (title / full-text)
 * [x] jump to zettel (open existing anchor)
@@ -80,6 +80,7 @@ start neovim with  `nvim --cmd "set rtp+=$(pwd)" .` to automatically load the fi
 * [ ] support *both* md-style and wiki-style links at the same time
 * [ ] file/directory exception list for gathering files, which will be ignored
 * [ ] 'strict' mode *only* matching and following valid anchor links
+* [ ] link creation - remove special marks, make customizable (e.g. i- will: help. -> i--will:-help..md [currently] -> i-will-help.md [possibly])
 
 ## Options
 

lua/zettelkasten/action.lua

@@ -31,7 +31,10 @@ function A.open_selected(style)
         ln = t.get_link_under_cursor(links, curpos)
     end
 
+    if not ln then return false end
+
     A.open(ln)
+    return true
 end
 
 -- Replaces the current text context with a link to a new zettel.
@@ -39,7 +42,7 @@ end
 -- or the (big) word under the cursor if called from any other mode.
 function A.make_link(visual)
     local selection, start_col
-    if visual or vim.api.nvim_get_mode()['mode'] == "v" then
+    if visual then
         selection, start_col = t.get_current_selection()
     else
         selection, start_col = t.get_current_word()

lua/zettelkasten/init.lua

@@ -22,9 +22,16 @@ function ZK.open_link() return action.open_selected() end
 -- Create a new link under cursor
 function ZK.make_link(visual) return action.make_link(visual) end
 
+-- If invoked in reach of a valid link will try to follow said link.
+-- Otherwise will take the current context and make a link out of it.
+function ZK.open_or_make_link(visual)
+    if not ZK.open_link() then ZK.make_link(visual) end
+end
+
 return {
     get_zettel_list = ZK.get_zettel_list,
     get_anchor = ZK.get_anchor,
     open_link = ZK.open_link,
-    make_link = ZK.make_link
+    make_link = ZK.make_link,
+    open_or_make_link = ZK.open_or_make_link
 }