nuwiki/development/vimwiki-gap.md

# vimwiki → nuwiki Parity Gaps

Tracking document for closing the gap between nuwiki and the original
[vimwiki](https://github.com/vimwiki/vimwiki) plugin across **configuration**,
**commands**, and **key mappings**.

Source of truth for upstream: vimwiki `master` —
`autoload/vimwiki/vars.vim` (option defaults), `plugin/vimwiki.vim` +
`ftplugin/vimwiki.vim` (commands/mappings), `doc/vimwiki.txt` (prose).

Audited 2026-05-31. Check items off as they land. Each row cites the nuwiki
fix site.

---

## P1 — Core workflow gaps (fix first)

- [x] **Vim client split/tab link-follow commands** — `VimwikiSplitLink`,
  `VimwikiVSplitLink`, `VimwikiGoBackLink`, `VimwikiTabnewLink`,
  `VimwikiTabDropLink` exist only in the Neovim branch. Vim users lose
  split-window link following and back-navigation.
  _Fix:_ `ftplugin/vimwiki.vim` (Vim branch) — commands added + `:Nuwiki*`
  aliases; `follow_link_drop()` helper in `autoload/nuwiki/commands.vim`;
  true `:tab drop` tab-reuse wired in both clients (`lua/nuwiki/commands.lua`
  `open_uri` `'tabdrop'` case); `<C-S-CR>` repointed to tab-drop.
- [x] **`gl<symbol>` change-symbol mappings** — upstream's one-key bullet/number
  symbol change (`gl*` `gl#` `gl-` `gl1` `gla` `gli` … plus `gL…`) has no
  nuwiki keymap; only `:…ChangeSymbol*` commands exist.
  _Fix:_ added normal-mode `gl{-,*,#,1,i,I,a,A}` (item) + `gL…` (whole list) in
  `lua/nuwiki/keymaps.lua` lists group and `ftplugin/vimwiki.vim` Vim-branch
  lists block, wired to the existing `list_change_symbol`. `1)` stays
  command-only (upstream shadows it with `1.`); normal-mode only (server acts on
  cursor item / whole list, not a visual range).
- [x] **`gl<Space>` / `gL<Space>` semantics diverge** — upstream = *remove
  checkbox* from item / list siblings; nuwiki rebound to *remove done items*.
  Same keys, different effect (parity trap).
  _Fix:_ bound **bare `gl`/`gL`** to remove-checkbox-item / -in-list for exact
  upstream parity (`lua/nuwiki/keymaps.lua` lists block, `ftplugin/vimwiki.vim`
  Vim-branch lists block); they share the `gl…` prefix so they fire after
  `timeoutlen`, just like upstream. Remove-*done* is now command-only:
  `:NuwikiRemoveDone` (current list) gained a `-bang` so `:NuwikiRemoveDone!`
  reaches the whole-buffer sweep that `gL<Space>` previously held (the only
  prior entry point). Normal-mode only.

## Regressions (reported by users — verify, then fix)

- [x] **`<CR>` link-follow: wrong window placement + no create-on-follow on the
  Vim clients** — two related Vim-branch bugs (Neovim path was already correct):
  (a) on coc.nvim, `<CR>` opened the target in a **new tab** instead of the
  current window; (b) on **both** vim-lsp and coc, `<CR>` on a link to a
  not-yet-created page **failed to open/create it**.
  _Root cause:_ the Vim follow path delegated to the LSP client's jump UI
  (`:LspDefinition` / `CocActionAsync('jumpDefinition')`). Those fetch the
  target's text before jumping — vim-lsp `readfile()`s it for the quickfix entry
  (`autoload/lsp/utils/location.vim`), which throws `E484` for a missing file
  and aborts the jump (→ no create-on-follow); coc, lacking an explicit open
  command, fell back to the user's `coc.preferences.jumpCommand` (→ new tab).
  The server itself was correct throughout — verified over JSON-RPC that
  `textDocument/definition` returns a *synthesised* location for missing pages
  and resolves existing links.
  _Fix:_ stop delegating. `nuwiki#commands#follow_link_or_create()` /
  `follow_link_drop()` now resolve `textDocument/definition` directly and open
  the URI ourselves via a shared `s:open_definition(open_cmd)` helper
  (`autoload/nuwiki/commands.vim`) — `:edit` for `<CR>`, `tab drop` for
  `<C-S-CR>`. `:edit` opens a buffer for a missing path (save creates it,
  matching vimwiki) and gives exact current-window placement regardless of the
  user's coc jumpCommand. Covered by
  `cr.follow_opens_missing_page_in_current_window` in
  `development/tests/test-keymaps-vim.vim`; manually reproducible via
  `development/start-vim.sh` (vim-lsp) and `development/start-vim-coc.sh` (coc).
- [x] **coc.nvim reported valid links as broken / couldn't resolve** — only via
  the new `development/start-vim-coc.sh` launcher: its generated
  `coc-settings.json` registered the server with `command`/`filetypes` but no
  `initializationOptions`, so `wiki_root` never reached the server and it
  resolved links against its default (`~/vimwiki`). _Fix:_ the launcher now
  emits `initializationOptions` **and** `settings.nuwiki` mirroring the vim-lsp
  client (`autoload/nuwiki/lsp.vim` `s:settings()`). Verified with a headless
  coc.nvim run: `[[Notes]]` resolves, only genuinely-missing links warn. (Shipped
  plugin only — no production code change; coc users configure their own
  `coc-settings.json` per the README snippet.)

## P2 — Moderate (real users hit these)

- [x] **`<Leader>w<Leader>t` collision** — upstream = today-in-new-tab; nuwiki
  bound both `<Leader>w<Leader>t` and `<Leader>w<Leader>m` to tomorrow's diary.
  _Fix:_ `<Leader>w<Leader>t` now calls `diary_today_tab` (today in a new tab),
  `<Leader>w<Leader>m` stays tomorrow — exact upstream parity
  (`lua/nuwiki/keymaps.lua`, `ftplugin/vimwiki.vim`; docs + README updated).
  Covered by `diary.leader_t_opens_today_in_tab` / `diary.leader_m_opens_tomorrow`.
- [x] **Generated-section captions hardcoded** — TOC/links/tags headings and
  their levels were hardcoded (`= Contents =`, `= Generated Links =`, `= Tags =`,
  all level 1). _Fix:_ added per-wiki `toc_header`/`toc_header_level`,
  `links_header`/`links_header_level`, `tags_header`/`tags_header_level`
  (defaults `Contents`/`Generated Links`/`Generated Tags`, level 1 — matching
  upstream; this also corrects the tags index heading from `Tags` →
  `Generated Tags`). A `caption_line(name, level)` helper emits the markers; the
  text + level thread through `toc_edit`/`links_edit`/`tag_links_edit` (+ the
  auto_toc save hook) and `find_section_range` matches the configured text so
  regen stays idempotent. Tests: `captions_honour_custom_header_and_level`
  (`link_health.rs`) + config round-trip in `index_and_config.rs`.
- [x] **On-save autoregen family** — added per-wiki `auto_generate_links`,
  `auto_generate_tags`, `auto_diary_index` (all default `false`, like upstream),
  wired into the `did_save` hook (`crates/nuwiki-lsp/src/lib.rs`) mirroring
  `auto_toc`: regen runs only when the section already exists
  (`links_rebuild_edit` / `tag_links_rebuild_edit`), and `auto_diary_index`
  regenerates the diary index when a dated diary *entry* is saved
  (`diary_generate_index_edit`, which handles an open/closed/absent index file).
  `auto_tags` is an **intentional divergence** (see below): nuwiki re-indexes on
  every change, so tag metadata is always fresh — there's no on-disk metadata
  file to update on save. Tests: `links_rebuild_edit_only_acts_when_section_present`
  (`link_health.rs`), `tag_links_rebuild_edit_only_acts_when_index_present`
  (`commands_tags.rs`), config round-trip + defaults (`index_and_config.rs`).
- [x] **`listsym_rejected`** — the rejected glyph was a hardcoded `const '-'`.
  _Fix:_ `ListSyms` gained a `rejected` field + `new_with_rejected()`
  (`crates/nuwiki-core/src/listsyms.rs`); per-wiki `listsym_rejected` key (default
  `-`) added to `WikiConfig`; `WikiConfig::list_syms()` builds the palette with
  it, used by the parse path (`lib.rs`) and the toggle/cycle commands — so a
  custom rejected glyph both lexes and round-trips. Tests:
  `listsyms::custom_rejected_glyph_is_honoured` + config round-trip in
  `index_and_config.rs`.
- [x] **`custom_wiki2html` (+`_args`)** and **`base_url`** — external HTML
  converter hook + export URL prefix. _Fix:_ `HtmlConfig` (`config.rs`) gained
  `custom_wiki2html`, `custom_wiki2html_args`, `base_url` (all default `""`,
  round-tripped through `RawWiki`/`From`/defaults). `write_page`
  (`commands.rs`) now takes a `force` flag and, when `custom_wiki2html` is set,
  hands the page to `run_custom_wiki2html()` — which shells out via `sh -c`
  with vimwiki's exact arg order (`<cmd> <force> <syntax> <ext> <out_dir>
  <in_file> <css> <tpl_path> <tpl_default> <tpl_ext> <root_path> <args>`, `-`
  for empty optionals) instead of the built-in renderer. `force` is threaded
  through `export_current` (false), `export_all` (its own flag), and the
  `did_save` auto-export path (false). `write_rss` now prefixes the channel +
  item links with `base_url` (`<base_url><diary_rel_path>/<date>.html`) when
  set, falling back to the entry's `file://` URI otherwise. Tests:
  `write_page_invokes_custom_wiki2html_converter`,
  `write_rss_uses_base_url_for_public_links` (`html_export.rs`), config
  round-trip + defaults (`index_and_config.rs`).
- [x] **`map_prefix`** — `<Leader>w` was hardcoded across the map layer.
  _Fix:_ mirror vimwiki's `g:vimwiki_map_prefix` with a configurable prefix
  (Neovim `map_prefix` setup option, default `'<Leader>w'`; Vim
  `g:nuwiki_map_prefix`). The whole wiki command family is now built from the
  prefix — both entry-point globals (`lua/nuwiki/init.lua`,
  `plugin/nuwiki.vim`, via `:exe`) and buffer-local maps
  (`lua/nuwiki/keymaps.lua`, `ftplugin/vimwiki.vim`). Setting a custom prefix
  relocates `<prefix>{w,t,s,i,n,d,r,c,h,hh,ha}` and `<prefix><Leader>{w,y,t,m,
  i}` and leaves nothing under the old `<Leader>w*`. Tests: new
  `test-keymaps-vim-prefix.vim` harness (21 cases, driven by
  `test-keymaps-vim.sh`) + `map_prefix.relocates_wiki_family`
  (`test-keymaps.lua`). Docs: README, `doc/nuwiki.txt`, lua config comment.
- [x] **`<M-CR>` badd-link** — was mouse-only (`<MiddleMouse>`) / command-only
  (`:VimwikiBaddLink`); upstream binds `<M-CR>` → `VimwikiBaddLink` (confirmed
  against upstream `ftplugin/vimwiki.vim`). _Fix:_ added normal-mode `<M-CR>` →
  `badd_link` in the links group of both clients (`lua/nuwiki/keymaps.lua`,
  `ftplugin/vimwiki.vim`; docs + README updated). Covered by `map[n].<M-CR>` in
  both keymap harnesses.
- [x] **`diary_caption_level` default divergence** — nuwiki defaulted to `1`,
  upstream `0`. _Fix:_ `wiki_defaults()` in `crates/nuwiki-lsp/src/config.rs` now
  defaults `diary_caption_level: 0` (year captions top-level, months one below),
  still per-wiki overridable. Test `defaults_carry_vimwiki_per_wiki_keys` updated.
- [x] **`diary_start_week_day`** — removed in `c63ec67` (weekly diary hardwired
  to ISO-Monday). Restored as a **configurable choice** so migrators keep
  upstream behaviour while new wikis can use ISO weeks. New per-wiki key
  `diary_weekly_style`: `iso` (default — `YYYY-Www`, Monday-based, nuwiki's
  original) or `date`/`vimwiki` (`YYYY-MM-DD` of the week-start day, upstream
  parity, honouring the restored `diary_start_week_day` = `monday`..`sunday`).
  _Impl:_ `nuwiki_core::date::{WeeklyStyle, WeekStart, DiaryCalendar}` own the
  today/next/prev logic; `WikiConfig::diary_calendar()` builds it from config;
  the diary commands (`commands.rs` `diary_open_relative` + next/prev pivot) use
  it. Defaults keep existing nuwiki weekly files working (no breaking change).
  Covered by calendar tests in `crates/nuwiki-core/tests/diary.rs` and the
  config round-trip in `crates/nuwiki-lsp/tests/index_and_config.rs`.

## P3 — Niche / low impact

### Commands
- [ ] `VimwikiVar` — config-var get/set introspection. _Fix:_ `plugin/nuwiki.vim`.
- [ ] `VimwikiShowVersion` — print version (trivial). _Fix:_ `plugin/nuwiki.vim`.
- [ ] `VimwikiReturn` — no Ex-command (mapping-driven only). _Fix:_ `ftplugin/vimwiki.vim`.
- [ ] `VimwikiTableAlignQ` vs `AlignW` collapsed to one `table_align` — `gqq`
  (align) vs `gww` (align w/o resize) distinction lost.
- [x] `VimwikiTable` was `-nargs=1` vs upstream `-nargs=*` (couldn't pass
  cols+rows). _Fix:_ all four defs (Vim+Neovim × Vimwiki+Nuwiki) are now
  `-nargs=*` and forward `<f-args>` to `table_insert` (which already parsed
  cols/rows). Covered by `cmd.VimwikiTable_passes_cols_and_rows`
  (`test-keymaps.lua`, asserts a `:VimwikiTable 4 3` → 4-col, 3-row table) and
  `cmd.VimwikiTable_accepts_cols_rows` (`test-keymaps-vim.vim`, no E488).
- [ ] `VimwikiListChangeLvl` is `-nargs=?` vs upstream `-range -nargs=+`.
- [x] `VimwikiRebuildTags` `-bang` ("rebuild all") — `:…RebuildTags!` now passes
  `{ all: true }`; the server (`tags_rebuild`) re-indexes **every** configured
  wiki (via `wikis_snapshot()`) instead of just the current one. `-bang` added to
  all four command defs.
- [ ] `:VimwikiSearch` / `VWS` uses `lvimgrep`, not vimwiki's search engine.
- [ ] `VimwikiIndex` family is buffer-local in nuwiki (upstream defines globally
  in `plugin/`); only `:…UISelect` is a global entry point.
- [x] **`VimwikiColorize` / `NuwikiColorize` drop their argument in the Neovim
  branch** — both are `-nargs=1`, but the Neovim defs called `colorize()` with no
  `<q-args>` (`ftplugin/vimwiki.vim:445,517`) while the Vim branch passes it. The
  color name was silently ignored under Neovim (real bug, not just parity).
  _Fix:_ Neovim command defs now pass `<q-args>`. While verifying, found a second
  bug: `colorize()` inferred visual-vs-normal from `vim.fn.visualmode()`, which
  returns the *last* session visual mode with stale `'<`/`'>` marks — so the
  normal-mode command wrapped a leftover selection instead of the cword.
  `colorize(color, visual)` now takes an explicit `visual` flag; the command and
  normal mapping always wrap the cword. Third bug: the commands were not
  `-range`, so selecting text and running `:VimwikiColorize` (which Vim turns
  into `:'<,'>VimwikiColorize`) raised `E481: No range allowed`. All four
  command defs are now `-range` and pass the range to the handler — a ranged
  (visual) invocation wraps the `'<`/`'>` selection on both clients; the
  `x`-mode `<Leader>wc` mapping passes the visual flag directly. Covered by
  `cmd.VimwikiColorize_uses_arg`, `cmd.Colorize_ignores_stale_visual_selection`,
  `colorize.visual_wraps_selection`, `cmd.Colorize_range_wraps_selection` in
  `test-keymaps.lua` and `colorize.{command_wraps_cword,visual_wraps_selection,
  ranged_command_no_error}` in `test-keymaps-vim.vim`.
- [x] **Colour spans aren't concealed** — a colorized word shows the literal
  `<span style="color:…">…</span>` markup instead of just the coloured text.
  _Fix:_ `autoload/nuwiki/colors.vim` `nuwiki#colors#refresh()` scans the buffer
  and defines, per colour, a syntax region that conceals the `<span …>`/`</span>`
  tags (`concealends`) and paints the wrapped text in the span's *actual* colour
  (`guifg`/`ctermfg`). Wired from the syntax file (initial + on `:colorscheme`
  reload), an `ftplugin` `TextChanged` autocmd, and directly from `colorize()`
  for immediate effect. The LSP `@vimwikiColor` token no longer links to
  `Constant` so it doesn't override the real colour on the concealed text in
  Neovim. Works in Vim, coc, and Neovim (pure syntax + `:highlight`, no LSP
  needed). Covered by `colorize.conceal_hides_tags_shows_text` (both harnesses)
  and `colorize.command_conceals_immediately` (`test-keymaps-vim.vim`).
- [x] **`VimwikiTableMoveColumn{Left,Right}` dispatch to different backing names
  per client** — converged: the Vim-branch commands now call
  `nuwiki#commands#table_move_column_left/right` (existing aliases over the
  `table_move_left/right` impls), matching the Neovim branch.
- [x] **`NuwikiTabIndex` lacks `-count` in the Neovim branch** — added `-count`;
  also switched the Neovim `Index`/`TabIndex` family (`Vimwiki/NuwikiTabIndex`
  and `Vimwiki/NuwikiIndex`) from `vim.v.count` (always 0 in command context) to
  `<count>`, so a `:2NuwikiIndex` / `:3NuwikiTabIndex` count is now honored.
  (The `Index` half was caught by the 2026-05-31 second re-audit and fixed then.)
- [x] **`VimwikiToggleListItem` / `Increment` / `DecrementListItem` `-range`** —
  all three (both branches) are now `-range`; the client loops the per-line op
  over `[<line1>, <line2>]` (`toggle_list_item_range` / `list_cycle_symbol_range`).
  The server edits are version-less single-line, so each line's edit applies
  independently — no server protocol change needed. Covered by
  `cmd.toggle_list_item_range` in `test-keymaps.lua`.
- [ ] **Diary-note family lacks `-count`** _(new, 2026-05-31 re-audit)_ — upstream's
  `:Vimwiki{Make,TabMake,MakeYesterday,MakeTomorrow}DiaryNote` carry `-count=0`
  (the count selects the wiki number); nuwiki's diary-note commands declare no
  count in either branch. _Fix:_ `ftplugin/vimwiki.vim` diary block (both
  branches) + thread the count into `diary_today/yesterday/tomorrow` + server
  diary commands (accept an optional `wiki` selector). _(The `Index`/`TabIndex`
  half is done: all four defs now use upstream's `-count=0` instead of bare
  `-count`; `wiki_index`/`wiki_tab_index` already map the count to the wiki
  number.)_
- [ ] **No `-complete=` specs** _(new)_ — upstream attaches command-line completion
  to `VimwikiGoto` (links), `VimwikiRenameFile` (files), `VimwikiColorize`
  (colours), and the tag commands. nuwiki defines none, so `<Tab>` completion of
  page / tag / colour names at the `:` line is unavailable. _Fix:_
  `ftplugin/vimwiki.vim` (both branches) — VimL completers or LSP-backed.
- [x] **Minor command-attribute gaps** _(new)_ — all now real, not cosmetic:
  `VimwikiNormalizeLink` is `-nargs=?` and with `1` wraps the `'<`/`'>` selection
  (`wrap_visual_as_wikilink`, both clients; the `x`-mode `+` passes it too);
  `VimwikiCheckLinks` is `-range` and a ranged invocation filters the report to
  the current buffer's selected lines; `VimwikiColorize` `-nargs=1`→`-nargs=*`
  (bare `:VimwikiColorize` prompts). Covered by
  `normalize.visual_wraps_selection` (vim) /
  `cmd.normalize_link_visual_wraps_selection` (nvim).
- [ ] **`VimwikiSplitLink` / `VimwikiVSplitLink` lack `-nargs=*`** _(new,
  2026-05-31 third re-audit)_ — upstream both take an optional target link to
  follow in the split; nuwiki's defs (both branches) take no args, so you can't
  pass a link to the split-follow. Low impact (the arg path is rarely used).
  _Fix:_ `ftplugin/vimwiki.vim` both branches + thread a target through
  `follow_link_or_create`.

### Config
- [ ] `auto_header` — auto H1-from-filename on new page (server-side).
- [ ] `create_link` — toggle to suppress link-target creation.
- [ ] `dir_link` — index file to open when following a directory link.
- [ ] `auto_chdir` — `:cd` into wiki root on open (client-side).
- [ ] `bullet_types` / `cycle_bullets` — custom bullet glyphs + wrap-around.
- [ ] `commentstring` (`'%%%s'`) — comment toggling/text-objects.
- [ ] `color_tag_template` — `color_dic` present; template regex missing.
- [ ] `rss_max_items` / `rss_name` — `:Rss` output hardcoded. _Fix:_ `HtmlConfig`.
- [ ] **RSS feed structure fidelity** _(new, 2026-05-31 base_url audit)_ —
  nuwiki's `write_rss` is intentionally minimal (title/link/guid). Upstream
  emits more: channel `<link>` points at the diary index page
  (`base_url + diary_rel_path + diary_index + .html`, nuwiki uses bare
  `base_url`); per-item `<guid isPermaLink="false">` holds the bare date
  basename (nuwiki uses the full URL, no attribute); plus `<atom:link rel=
  "self">`, channel/item `<pubDate>` (from mtime), and a `<![CDATA[…]]>`
  rendered-HTML body per item. `base_url`'s *scope* is faithful (RSS-only,
  not inter-page links) and the `custom_wiki2html` arg contract is an exact
  match — only the feed document shape diverges.
- [ ] `emoji_enable` — emoji substitution.
- [ ] `html_header_numbering` (+`_sym`) — numbered HTML headers.
- [ ] `valid_html_tags` — allowed inline HTML tags in export.
- [ ] `generated_links_caption`, `toc_link_format`, `markdown_link_ext`.
- [ ] `list_ignore_newline` / `text_ignore_newline` — export newline handling.

### Mappings
- [ ] Visual `<CR>` normalize-link (visual `+` covers the same intent).
- [ ] Insert `<S-CR>` multiline list item.
- [ ] `gLH` / `gLL` / `gLR` — upstream binds these as case-variant **aliases**
  of `gLh` / `gLl` / `gLr` (same actions: dedent / indent whole item, renumber
  all lists; upstream `ftplugin/vimwiki.vim:553,555,561`). nuwiki has the
  lowercase forms but not the uppercase-suffix aliases. Cosmetic — same effect,
  redundant keys.
- [x] **`<D-CR>` (Cmd+Return) tab-drop alias** _(new, 2026-05-31 re-audit)_ —
  added `<D-CR>` → `follow_link_drop` alongside `<C-S-CR>` in both clients
  (`lua/nuwiki/keymaps.lua`, `ftplugin/vimwiki.vim`); docs updated. Covered by
  `map[n].<D-CR>` in both harnesses.
- [x] **`<Leader>w<Leader>m` missing from the Vim *global* map block** _(new)_ —
  `plugin/nuwiki.vim`'s global family now binds `<Leader>w<Leader>m` (tomorrow)
  and `<Leader>w<Leader>t` opens today in a new tab (was the same collision the
  buffer-local maps had). Covered by `map[n].<Leader>w<Leader>m` in both harnesses.
- [x] **`<Leader>w<Leader>m` missing from the Neovim *global* map block**
  _(new, 2026-05-31 map_prefix audit)_ — the same collision survived in
  `lua/nuwiki/init.lua`'s `_setup_global_mappings`: `<prefix><Leader>t` was
  bound to tomorrow and `<prefix><Leader>m` (tomorrow) was absent entirely.
  Fixed so `<prefix><Leader>t` opens today in a new tab and `<prefix><Leader>m`
  is tomorrow — now consistent with the Vim global side + upstream. Covered by
  `global_maps.diary_tab_and_tomorrow_targets` (`test-keymaps.lua`).

---

## Intentional divergences (no action — architectural)

These upstream options have no nuwiki equivalent by design, because nuwiki is
an LSP-backed reimplementation rather than a pure-VimL plugin. Listed so future
audits don't re-flag them.

- `nested_syntaxes` / `automatic_nested_syntaxes` — code-fence languages are
  auto-detected from the fence tag (`syntax/vimwiki.vim`); always on, no toggle.
- `maxhi` — existence-based link highlighting; superseded by LSP diagnostics.
- `conceal*` (`conceallevel`, `conceal_onechar_markers`, …) — semantic tokens
  replace conceal.
- `ext2syntax` — syntax chosen by extension / `syntax` key automatically.
- `folding` (upstream string) — nuwiki uses `folding = 'lsp' | 'expr' | 'off'`
  backed by LSP foldingRange.
- `key_mappings` (dict) — replaced by Lua `mappings.<group>` + the
  `g:nuwiki_no_<group>_mappings` globals.
- `use_calendar` — no calendar.vim integration.
- `auto_tags` (upstream `0`) — upstream auto-updates an on-disk tag *metadata*
  file on save. nuwiki has no such file: the LSP re-indexes tags on every
  `didChange`, so tag search/jump/completion are always fresh. The setting's
  intent is therefore always satisfied (the `auto_generate_tags` regen of the
  in-buffer links section is the configurable on-save piece).
- Mouse maps (`<2-LeftMouse>`, `<MiddleMouse>`, …) — upstream binds them
  unconditionally; nuwiki ships them **opt-in** (`mappings.mouse` /
  `g:nuwiki_mouse_mappings`). Deliberate, so they're not always-on.
- `global_ext` (upstream `1`) — nuwiki's ftdetect always maps the configured
  wiki extension(s) to the `vimwiki` filetype regardless of location; there's no
  per-wiki "only inside the root" toggle. Effectively always-on, like
  `nested_syntaxes`.
- `syntax` default name — nuwiki defaults the per-wiki `syntax` to `vimwiki` (its
  primary syntax) where upstream defaults to `default`; a naming difference, not
  a behavioural one.
- `CJK_length`, `listing_hl*`, `schemes_*`, `w32_dir_enc`, `menu`,
  `rx_todo` / `tag_format` — syntax internals, menu, or Vim/Win shims.

---

## Notes
- Audit confidence: upstream defaults pulled from vimwiki `master`; a couple of
  values (`CJK_length`, `links_space_char`) were summarized loosely but don't
  affect the gap list.
- nuwiki adds some commands with no upstream equivalent (e.g.
  `:NuwikiFindOrphans`) — additive, not divergences.
- Re-audited 2026-05-31 (config / mappings / commands, three parallel agents
  against vimwiki `master`). All recent P1/P2/P3 fixes — split/tab link-follow,
  `gl`/`gL` change-symbol + bare-`gl`/`gL` remove-checkbox, `<CR>`-family
  create-on-follow, `<M-CR>` badd, `<Leader>w<Leader>t`/`m`, `VimwikiColorize`
  arg+range, colour-span conceal — confirmed present and correct in **both**
  clients. New gaps from that pass (diary-note `-count`, `-complete` specs,
  `<D-CR>`, global `<Leader>w<Leader>m`, plus `global_ext`/`syntax`-name notes)
  were added above; no previously-closed item regressed.
- Re-audited again 2026-05-31 (third pass) after the range/bang/visual and
  diary-week work. All those fixes confirmed in both clients; no regressions.
  Confirmed Neovim **does** bind the text objects (`nuwiki.textobjects.attach`).
  Found + fixed an oversight (Neovim `Vimwiki/NuwikiIndex` still read
  `vim.v.count`; now `<count>`, completing the `TabIndex` fix). New gaps logged:
  `VimwikiSplitLink`/`VSplitLink` missing `-nargs=*`; mouse-maps-opt-in noted as
  an intentional divergence. Config pass found no new gaps; all shipped defaults
  match upstream except the documented `syntax`-name divergence.