fix(buffer): escape hyphens in infer_status Lua patterns (#119)

* fix(buffer): escape hyphens in `infer_status` Lua patterns

Problem: `infer_status` used `/-` in its Lua patterns, which is a lazy
quantifier on `/` rather than a literal hyphen. This caused the function
to always return `nil` for lines with an `/id/` prefix, so status was
never inferred from buffer text during `reapply_dirty_inline`.

Solution: escape hyphens as `%-` in both patterns. Also add debug
logging to `on_bytes`, `reapply_dirty_inline`, `apply_extmarks`, and
the `TextChanged`/`TextChangedI`/`InsertLeave` autocmds.

* ci: format

lua/pending/buffer.lua

@@ -185,7 +185,7 @@ end
 ---@param line string
 ---@return string?
 local function infer_status(line)
-  local ch = line:match('^/%d+/- %[(.)%]') or line:match('^- %[(.)%]')
+  local ch = line:match('^/%d+/%- %[(.)%]') or line:match('^%- %[(.)%]')
   if not ch then
     return nil
   end
@@ -205,12 +205,22 @@ function M.reapply_dirty_inline(bufnr)
   if not next(_dirty_rows) then
     return
   end
+  log.debug(('reapply_dirty: rows=%s'):format(vim.inspect(vim.tbl_keys(_dirty_rows))))
   local icons = config.get().icons
   for row in pairs(_dirty_rows) do
     local m = _meta[row]
     if m and m.type == 'task' then
       local line = vim.api.nvim_buf_get_lines(bufnr, row - 1, row, false)[1] or ''
+      local old_status = m.status
       m.status = infer_status(line) or m.status
+      log.debug(
+        ('reapply_dirty: row=%d line=%q old_status=%s new_status=%s'):format(
+          row,
+          line,
+          tostring(old_status),
+          tostring(m.status)
+        )
+      )
     end
     if m then
       vim.api.nvim_buf_clear_namespace(bufnr, ns_inline, row - 1, row)
@@ -228,7 +238,7 @@ function M.attach_bytes(bufnr)
   end
   _on_bytes_active = true
   vim.api.nvim_buf_attach(bufnr, false, {
-    on_bytes = function(_, buf, _, start_row, _, _, old_end_row, _, _, new_end_row, _, _)
+    on_bytes = function(_, buf, _, start_row, start_col, _, old_end_row, _, _, new_end_row, _, _)
       if buf ~= task_bufnr then
         _on_bytes_active = false
         return true
@@ -237,13 +247,24 @@ function M.attach_bytes(bufnr)
         return
       end
       local delta = new_end_row - old_end_row
+      log.debug(
+        ('on_bytes: start_row=%d start_col=%d old_end=%d new_end=%d delta=%d'):format(
+          start_row,
+          start_col,
+          old_end_row,
+          new_end_row,
+          delta
+        )
+      )
       if delta > 0 then
         for _ = 1, delta do
+          log.debug(('on_bytes: insert meta at %d'):format(start_row + 2))
           table.insert(_meta, start_row + 2, { type = 'task' })
         end
       elseif delta < 0 then
         for _ = 1, -delta do
           if _meta[start_row + 2] then
+            log.debug(('on_bytes: remove meta at %d'):format(start_row + 2))
             table.remove(_meta, start_row + 2)
           end
         end
@@ -251,6 +272,10 @@ function M.attach_bytes(bufnr)
       for r = start_row + 1, start_row + 1 + math.max(0, new_end_row) do
         _dirty_rows[r] = true
       end
+      log.debug(('on_bytes: dirty rows=%s'):format(vim.inspect(vim.tbl_keys(_dirty_rows))))
+      for i, m in ipairs(_meta) do
+        log.debug(('on_bytes: _meta[%d] type=%s status=%s'):format(i, m.type, tostring(m.status)))
+      end
     end,
   })
 end
@@ -496,7 +521,11 @@ local function apply_extmarks(bufnr, line_meta)
   local eol_segments = parse_eol_format(cfg.view.eol_format or '%c  %r  %d')
   vim.api.nvim_buf_clear_namespace(bufnr, ns_eol, 0, -1)
   vim.api.nvim_buf_clear_namespace(bufnr, ns_inline, 0, -1)
+  log.debug(('apply_extmarks: full render, %d lines'):format(#line_meta))
   for i, m in ipairs(line_meta) do
+    log.debug(
+      ('apply_extmarks: row=%d type=%s status=%s'):format(i - 1, m.type, tostring(m.status))
+    )
     local row = i - 1
     if m.type == 'task' then
       local virt_parts = build_eol_virt(eol_segments, m, icons)

lua/pending/init.lua

@@ -268,6 +268,7 @@ function M._setup_autocmds(bufnr)
       if not vim.bo[bufnr].modified then
         return
       end
+      log.debug('autocmd: TextChangedI')
       for row in pairs(buffer.dirty_rows()) do
         buffer.clear_inline_row(bufnr, row)
       end
@@ -280,6 +281,7 @@ function M._setup_autocmds(bufnr)
       if not vim.bo[bufnr].modified then
         return
       end
+      log.debug('autocmd: TextChanged')
       buffer.reapply_dirty_inline(bufnr)
     end,
   })
@@ -288,6 +290,7 @@ function M._setup_autocmds(bufnr)
     buffer = bufnr,
     callback = function()
       if vim.bo[bufnr].modified then
+        log.debug('autocmd: InsertLeave')
         buffer.reapply_dirty_inline(bufnr)
       end
     end,