feat: text objects and motions for the pending buffer (#39)
* feat: text objects and motions for the pending buffer
Problem: the pending buffer has action-button mappings but no Vim
grammar. You cannot dat to delete a task, cit to change a description,
or ]] to jump to the next category header.
Solution: add textobj.lua with at/it (a task / inner task), aC/iC
(a category / inner category), ]]/[[ (next/prev header), and ]t/[t
(next/prev task). All text objects work in operator-pending and visual
modes; motions work in normal, visual, and operator-pending. Mappings
are configurable via the keymaps table and exposed as <Plug> mappings.
* fix(textobj): escape Lua pattern hyphen, fix test expectations
Problem: inner_task_range used unescaped '-' in Lua patterns, which
acts as a lazy quantifier instead of matching a literal hyphen. The
metadata-stripping logic also tokenized the full line including the
prefix, so the rebuilt string could never be found after the prefix.
All test column expectations were off by one.
Solution: escape hyphens with %-, rewrite metadata stripping to
tokenize only the description portion after the prefix, and correct
all test assertions to match actual rendered column positions.
* feat(textobj): add debug mode, rename priority view buffer
Problem: the ]] motion reportedly lands one line past the header in
some environments, and ]t/[t may not override Neovim defaults. No
way to diagnose these at runtime. Also, pending://priority is a poor
buffer name for the flat ranked view.
Solution: add a debug config option (vim.g.pending = { debug = true })
that logs meta state, cursor positions, and mapping registration to
:messages at DEBUG level. Rename the buffer from pending://priority to
pending://queue. Internal view identifier stays 'priority'.
* docs: text objects, motions, debug mode, queue view rename
Problem: vimdoc had no documentation for the new text objects, motions,
debug config, or the pending://queue buffer rename.
Solution: add text object and motion tables to the mappings section,
document all eight <Plug> mappings, add debug field to the config
reference, update config example with new keymap defaults, rename
priority view references to queue throughout the vimdoc.
* fix(textobj): use correct config variable, raise log level
Problem: motion keymaps (]], [[, ]t, [t) were never set because
`config.get().debug` referenced an undefined `config` variable,
crashing _setup_buf_mappings before the motion loop. Debug logging
also used vim.log.levels.DEBUG which is filtered by default.
Solution: replace `config` with `cfg` (already in scope) and raise
both debug notify calls from DEBUG to INFO.
* ci: formt
This commit is contained in:
Barrett Ruth
parent
f689cac70b
commit
92c2c670c5
7 changed files with 778 additions and 5 deletions
384
lua/pending/textobj.lua
Normal file
384
lua/pending/textobj.lua
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@ -0,0 +1,384 @@
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local buffer = require('pending.buffer')
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local config = require('pending.config')
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---@class pending.textobj
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local M = {}
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---@param ... any
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---@return nil
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local function dbg(...)
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if config.get().debug then
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vim.notify('[pending.textobj] ' .. string.format(...), vim.log.levels.INFO)
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end
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end
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---@param lnum integer
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---@param meta pending.LineMeta[]
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---@return string
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local function get_line_from_buf(lnum, meta)
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local _ = meta
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local bufnr = buffer.bufnr()
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if not bufnr then
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return ''
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end
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local lines = vim.api.nvim_buf_get_lines(bufnr, lnum - 1, lnum, false)
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return lines[1] or ''
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end
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---@param line string
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---@return integer start_col
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---@return integer end_col
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function M.inner_task_range(line)
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local prefix_end = line:find('/') and select(2, line:find('^/%d+/%- %[.%] '))
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if not prefix_end then
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prefix_end = select(2, line:find('^%- %[.%] ')) or 0
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end
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local start_col = prefix_end + 1
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local dk = config.get().date_syntax or 'due'
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local rk = config.get().recur_syntax or 'rec'
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local dk_pat = '^' .. vim.pesc(dk) .. ':%S+$'
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local rk_pat = '^' .. vim.pesc(rk) .. ':%S+$'
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local rest = line:sub(start_col)
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local words = {}
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for word in rest:gmatch('%S+') do
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table.insert(words, word)
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end
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local i = #words
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while i >= 1 do
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local word = words[i]
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if word:match(dk_pat) or word:match('^cat:%S+$') or word:match(rk_pat) then
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i = i - 1
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else
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break
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end
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end
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if i < 1 then
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return start_col, start_col
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end
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local desc = table.concat(words, ' ', 1, i)
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local end_col = start_col + #desc - 1
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return start_col, end_col
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end
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---@param row integer
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---@param meta pending.LineMeta[]
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---@return integer? header_row
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---@return integer? last_row
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function M.category_bounds(row, meta)
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if not meta or #meta == 0 then
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return nil, nil
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end
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local header_row = nil
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local m = meta[row]
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if not m then
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return nil, nil
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end
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if m.type == 'header' then
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header_row = row
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else
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for r = row, 1, -1 do
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if meta[r] and meta[r].type == 'header' then
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header_row = r
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break
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end
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end
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end
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if not header_row then
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return nil, nil
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end
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local last_row = header_row
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local total = #meta
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for r = header_row + 1, total do
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if meta[r].type == 'header' then
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break
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end
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last_row = r
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end
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return header_row, last_row
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end
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---@param count integer
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---@return nil
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function M.a_task(count)
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local meta = buffer.meta()
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if not meta or #meta == 0 then
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return
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end
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local row = vim.api.nvim_win_get_cursor(0)[1]
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local m = meta[row]
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if not m or m.type ~= 'task' then
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return
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end
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local start_row = row
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local end_row = row
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count = math.max(1, count)
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for _ = 2, count do
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local next_row = end_row + 1
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if next_row > #meta then
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break
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end
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if meta[next_row] and meta[next_row].type == 'task' then
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end_row = next_row
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else
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break
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end
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end
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vim.cmd('normal! ' .. start_row .. 'GV' .. end_row .. 'G')
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end
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---@param count integer
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---@return nil
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function M.a_task_visual(count)
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vim.cmd('normal! \27')
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M.a_task(count)
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end
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---@param count integer
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---@return nil
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function M.i_task(count)
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local _ = count
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local meta = buffer.meta()
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if not meta or #meta == 0 then
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return
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end
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local row = vim.api.nvim_win_get_cursor(0)[1]
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local m = meta[row]
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if not m or m.type ~= 'task' then
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return
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end
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local line = get_line_from_buf(row, meta)
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local start_col, end_col = M.inner_task_range(line)
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if start_col > end_col then
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return
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end
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vim.api.nvim_win_set_cursor(0, { row, start_col - 1 })
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vim.cmd('normal! v')
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vim.api.nvim_win_set_cursor(0, { row, end_col - 1 })
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end
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---@param count integer
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---@return nil
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function M.i_task_visual(count)
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vim.cmd('normal! \27')
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M.i_task(count)
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end
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---@param count integer
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---@return nil
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function M.a_category(count)
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local _ = count
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local meta = buffer.meta()
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if not meta or #meta == 0 then
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return
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end
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local view = buffer.current_view_name()
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if view == 'priority' then
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return
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end
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local row = vim.api.nvim_win_get_cursor(0)[1]
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local header_row, last_row = M.category_bounds(row, meta)
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if not header_row or not last_row then
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return
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end
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local start_row = header_row
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if header_row > 1 and meta[header_row - 1] and meta[header_row - 1].type == 'blank' then
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start_row = header_row - 1
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end
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local end_row = last_row
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if last_row < #meta and meta[last_row + 1] and meta[last_row + 1].type == 'blank' then
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end_row = last_row + 1
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end
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vim.cmd('normal! ' .. start_row .. 'GV' .. end_row .. 'G')
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end
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---@param count integer
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---@return nil
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function M.a_category_visual(count)
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vim.cmd('normal! \27')
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M.a_category(count)
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end
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---@param count integer
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---@return nil
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function M.i_category(count)
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local _ = count
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local meta = buffer.meta()
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if not meta or #meta == 0 then
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return
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end
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local view = buffer.current_view_name()
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if view == 'priority' then
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return
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end
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local row = vim.api.nvim_win_get_cursor(0)[1]
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local header_row, last_row = M.category_bounds(row, meta)
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if not header_row or not last_row then
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return
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end
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local first_task = nil
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local last_task = nil
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for r = header_row + 1, last_row do
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if meta[r] and meta[r].type == 'task' then
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if not first_task then
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first_task = r
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end
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last_task = r
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end
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end
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if not first_task or not last_task then
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return
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end
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vim.cmd('normal! ' .. first_task .. 'GV' .. last_task .. 'G')
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end
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---@param count integer
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---@return nil
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function M.i_category_visual(count)
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vim.cmd('normal! \27')
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M.i_category(count)
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end
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---@param count integer
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---@return nil
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function M.next_header(count)
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local meta = buffer.meta()
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if not meta or #meta == 0 then
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return
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end
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local view = buffer.current_view_name()
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if view == 'priority' then
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return
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end
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local row = vim.api.nvim_win_get_cursor(0)[1]
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dbg('next_header: cursor=%d, meta_len=%d, view=%s', row, #meta, view or 'nil')
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local found = 0
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count = math.max(1, count)
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for r = row + 1, #meta do
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if meta[r] and meta[r].type == 'header' then
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found = found + 1
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dbg(
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'next_header: found header at row=%d, cat=%s, found=%d/%d',
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r,
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meta[r].category or '?',
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found,
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count
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)
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if found == count then
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vim.api.nvim_win_set_cursor(0, { r, 0 })
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dbg('next_header: cursor set to row=%d, actual=%d', r, vim.api.nvim_win_get_cursor(0)[1])
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return
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end
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else
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dbg('next_header: row=%d type=%s', r, meta[r] and meta[r].type or 'nil')
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end
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end
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dbg('next_header: no header found after row=%d', row)
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end
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---@param count integer
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---@return nil
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function M.prev_header(count)
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local meta = buffer.meta()
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if not meta or #meta == 0 then
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return
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end
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local view = buffer.current_view_name()
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if view == 'priority' then
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return
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end
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local row = vim.api.nvim_win_get_cursor(0)[1]
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dbg('prev_header: cursor=%d, meta_len=%d', row, #meta)
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local found = 0
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count = math.max(1, count)
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for r = row - 1, 1, -1 do
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if meta[r] and meta[r].type == 'header' then
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found = found + 1
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dbg(
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'prev_header: found header at row=%d, cat=%s, found=%d/%d',
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r,
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meta[r].category or '?',
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found,
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count
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)
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if found == count then
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vim.api.nvim_win_set_cursor(0, { r, 0 })
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return
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end
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end
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end
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end
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---@param count integer
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---@return nil
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function M.next_task(count)
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local meta = buffer.meta()
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if not meta or #meta == 0 then
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return
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end
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local row = vim.api.nvim_win_get_cursor(0)[1]
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dbg('next_task: cursor=%d, meta_len=%d', row, #meta)
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local found = 0
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count = math.max(1, count)
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for r = row + 1, #meta do
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if meta[r] and meta[r].type == 'task' then
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found = found + 1
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if found == count then
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dbg('next_task: jumping to row=%d', r)
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vim.api.nvim_win_set_cursor(0, { r, 0 })
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return
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end
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end
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end
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dbg('next_task: no task found after row=%d', row)
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end
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---@param count integer
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---@return nil
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function M.prev_task(count)
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local meta = buffer.meta()
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if not meta or #meta == 0 then
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return
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end
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local row = vim.api.nvim_win_get_cursor(0)[1]
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dbg('prev_task: cursor=%d, meta_len=%d', row, #meta)
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local found = 0
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count = math.max(1, count)
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for r = row - 1, 1, -1 do
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if meta[r] and meta[r].type == 'task' then
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found = found + 1
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if found == count then
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dbg('prev_task: jumping to row=%d', r)
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vim.api.nvim_win_set_cursor(0, { r, 0 })
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return
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end
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end
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end
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dbg('prev_task: no task found before row=%d', row)
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end
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return M
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Reference in a new issue