more cleanup

.gitignore

@@ -1,2 +1,3 @@
 /.lux/
+lux.lock
 *.src.rock

lua/u/buffer.lua

@@ -67,11 +67,11 @@ end
 --- @param stop number 1-based line index
 function Buffer:lines(start, stop) return Range.from_lines(self.bufnr, start, stop) end
 
---- @param txt_obj string
+--- @param motion string
 --- @param opts? { contains_cursor?: boolean; pos?: u.Pos }
-function Buffer:txtobj(txt_obj, opts)
+function Buffer:motion(motion, opts)
   opts = vim.tbl_extend('force', opts or {}, { bufnr = self.bufnr })
-  return Range.from_motion(txt_obj, opts)
+  return Range.from_motion(motion, opts)
 end
 
 --- @param event string|string[]

lua/u/pos.lua

@@ -77,7 +77,7 @@ function Pos.from_pos(name)
   return Pos.new(p[1], p[2], p[3], p[4])
 end
 
-function Pos:is_invalid() return self.bufnr == 0 and self.lnum == 0 and self.col == 0 and self.off == 0 end
+function Pos:is_invalid() return self.lnum == 0 and self.col == 0 and self.off == 0 end
 
 function Pos:clone() return Pos.new(self.bufnr, self.lnum, self.col, self.off) end
 

lua/u/range.lua

@@ -92,35 +92,35 @@ function Range.from_lines(bufnr, start_line, stop_line)
   return Range.new(Pos.new(bufnr, start_line, 1), Pos.new(bufnr, stop_line, Pos.MAX_COL), 'V')
 end
 
---- @param text_obj string
+--- @param motion string
 --- @param opts? { bufnr?: number; contains_cursor?: boolean; pos?: u.Pos, user_defined?: boolean }
 --- @return u.Range|nil
-function Range.from_motion(text_obj, opts)
+function Range.from_motion(motion, opts)
+  -- Options handling:
   opts = opts or {}
   if opts.bufnr == nil then opts.bufnr = vim.api.nvim_get_current_buf() end
   if opts.contains_cursor == nil then opts.contains_cursor = false end
   if opts.user_defined == nil then opts.user_defined = false end
 
-  --- @type "a" | "i"
-  local selection_type = text_obj:sub(1, 1)
-  local obj_type = text_obj:sub(#text_obj, #text_obj)
-  local is_quote = vim.tbl_contains({ "'", '"', '`' }, obj_type)
-  local cursor = Pos.from_pos '.'
+  -- Extract some information from the motion:
+  --- @type 'a'|'i', string
+  local scope, motion_rest = motion:sub(1, 1), motion:sub(2)
+  local is_txtobj = scope == 'a' or scope == 'i'
+  local is_quote_txtobj = is_txtobj and vim.tbl_contains({ "'", '"', '`' }, motion_rest)
 
   --- @type u.Pos
   local start
   --- @type u.Pos
   local stop
-
+  -- Capture the original state of the buffer for restoration later.
+  local original_state = {
+    winview = vim.fn.winsaveview(),
+    regquote = vim.fn.getreg '"',
+    cursor = vim.fn.getpos '.',
+    pos_lbrack = vim.fn.getpos "'[",
+    pos_rbrack = vim.fn.getpos "']",
+  }
   vim.api.nvim_buf_call(opts.bufnr, function()
-    local original_state = {
-      winview = vim.fn.winsaveview(),
-      regquote = vim.fn.getreg '"',
-      posdot = vim.fn.getpos '.',
-      poslb = vim.fn.getpos "'[",
-      posrb = vim.fn.getpos "']",
-    }
-
     if opts.pos ~= nil then opts.pos:save_to_pos '.' end
 
     Pos.invalid():save_to_pos "'["
@@ -131,39 +131,41 @@ function Range.from_motion(text_obj, opts)
     vim.cmd {
       cmd = 'normal',
       bang = not opts.user_defined,
-      args = { '""y' .. text_obj },
+      args = { '""y' .. motion },
       mods = { silent = true },
     }
     on_yank_enabled = prev_on_yank_enabled
 
     start = Pos.from_pos "'["
     stop = Pos.from_pos "']"
-
-    -- Restore original state:
-    vim.fn.winrestview(original_state.winview)
-    vim.fn.setreg('"', original_state.regquote)
-    vim.fn.setpos('.', original_state.posdot)
-    vim.fn.setpos("'[", original_state.poslb)
-    vim.fn.setpos("']", original_state.posrb)
-
-    if
-      -- I have no idea why, but when yanking `i"`, the stop-mark is
-      -- placed on the ending quote. For other text-objects, the stop-
-      -- mark is placed before the closing character.
-      (is_quote and selection_type == 'i' and stop:char() == obj_type)
-      -- *Sigh*, this also sometimes happens for `it` as well.
-      or (text_obj == 'it' and stop:char() == '<')
-    then
-      stop = stop:next(-1) or stop
-    end
   end)
+  -- Restore original state:
+  vim.fn.winrestview(original_state.winview)
+  vim.fn.setreg('"', original_state.regquote)
+  vim.fn.setpos('.', original_state.cursor)
+  vim.fn.setpos("'[", original_state.pos_lbrack)
+  vim.fn.setpos("']", original_state.pos_rbrack)
 
   if start == stop and start:is_invalid() then return nil end
-  if opts.contains_cursor and not Range.new(start, stop):contains(cursor) then return nil end
 
-  if is_quote and selection_type == 'a' then
-    start = start:find_next(1, obj_type) or start
-    stop = stop:find_next(-1, obj_type) or stop
+  -- Fixup the bounds:
+  if
+    -- I have no idea why, but when yanking `i"`, the stop-mark is
+    -- placed on the ending quote. For other text-objects, the stop-
+    -- mark is placed before the closing character.
+    (is_quote_txtobj and scope == 'i' and stop:char() == motion_rest)
+    -- *Sigh*, this also sometimes happens for `it` as well.
+    or (motion == 'it' and stop:char() == '<')
+  then
+    stop = stop:next(-1) or stop
+  end
+  if is_quote_txtobj and scope == 'a' then
+    start = start:find_next(1, motion_rest) or start
+    stop = stop:find_next(-1, motion_rest) or stop
+  end
+
+  if opts.contains_cursor and not Range.new(start, stop):contains(Pos.new(unpack(original_state.cursor))) then
+    return nil
   end
 
   return Range.new(start, stop)

lux.toml

@@ -1,5 +1,5 @@
 package = "u.nvim"
-version = "0.1.0"
+version = "0.2.0"
 lua = ">=5.1"
 
 [description]