mini.nvim/lua/mini/jump.lua at main · krig/mini.nvim

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--- *mini.jump* Jump to next/previous single character

--- *MiniJump*

---

--- ==============================================================================

---

--- Features:

--- - Extend f, F, t, T to work on multiple lines.

---

--- - Repeat jump by pressing f, F, t, T again. It is reset when cursor moved

--- as a result of not jumping or timeout after idle time (duration

--- customizable).

---

--- - Highlight (after customizable delay) all possible target characters and

--- stop it after some (customizable) idle time.

---

--- - Normal, Visual, and Operator-pending (with full dot-repeat) modes are

--- supported.

---

--- This module follows vim's 'ignorecase' and 'smartcase' options. When

--- 'ignorecase' is set, f, F, t, T will match case-insensitively. When

--- 'smartcase' is also set, f, F, t, T will only match lowercase

--- characters case-insensitively.

---

--- # Setup ~

---

--- This module needs a setup with `require('mini.jump').setup({})`

--- (replace `{}` with your `config` table). It will create global Lua table

--- `MiniJump` which you can use for scripting or manually (with

--- `:lua MiniJump.*`).

---

--- See |MiniJump.config| for `config` structure and default values.

---

--- You can override runtime config settings locally to buffer inside

--- `vim.b.minijump_config` which should have same structure as

--- `MiniJump.config`. See |mini.nvim-buffer-local-config| for more details.

---

--- To stop module from showing non-error feedback, set `config.silent = true`.

---

--- # Highlight groups ~

---

--- * `MiniJump` - all possible cursor positions.

---

--- To change any highlight group, modify it directly with |:highlight|.

---

--- # Disabling ~

---

--- To disable core functionality, set `vim.g.minijump_disable` (globally) or

--- `vim.b.minijump_disable` (for a buffer) to `true`. Considering high number of

--- different scenarios and customization intentions, writing exact rules for

--- disabling module's functionality is left to user. See

--- |mini.nvim-disabling-recipes| for common recipes.

---@alias __jump_target string|nil The string to jump to.

---@alias __jump_backward boolean|nil Whether to jump backward.

---@alias __jump_till boolean|nil Whether to jump just before/after the match instead of

--- exactly on target. This includes positioning cursor past the end of

--- previous/current line. Note that with backward jump this might lead to

--- cursor being on target if can't be put past the line.

---@alias __jump_n_times number|nil Number of times to perform consecutive jumps.

-- Module definition ==========================================================

local MiniJump = {}

local H = {}

--- Module setup

---

---@param config table|nil Module config table. See |MiniJump.config|.

---

---@usage >lua

--- require('mini.jump').setup() -- use default config

--- -- OR

--- require('mini.jump').setup({}) -- replace {} with your config table

--- <

MiniJump.setup = function(config)

-- Export module

_G.MiniJump = MiniJump

-- Setup config

config = H.setup_config(config)

-- Apply config

H.apply_config(config)

-- Define behavior

H.create_autocommands()

-- Create default highlighting

H.create_default_hl()

end

--- Module config

---

--- Default values:

---@eval return MiniDoc.afterlines_to_code(MiniDoc.current.eval_section)

MiniJump.config = {

-- Module mappings. Use `''` (empty string) to disable one.

mappings = {

forward = 'f',

backward = 'F',

forward_till = 't',

backward_till = 'T',

repeat_jump = ';',

-- Delay values (in ms) for different functionalities. Set any of them to

-- a very big number (like 10^7) to virtually disable.

delay = {

-- Delay between jump and highlighting all possible jumps

highlight = 250,

-- Delay between jump and automatic stop if idle (no jump is done)

idle_stop = 10000000,

-- Whether to disable showing non-error feedback

-- This also affects (purely informational) helper messages shown after

-- idle time if user input is required.

silent = false,

}

--minidoc_afterlines_end

-- Module data ================================================================

--- Data about jumping state

---

--- It stores various information used in this module. All elements, except

--- `jumping`, is about the latest jump. They are used as default values for

--- similar arguments.

---

---@class JumpingState

---

---@field target __jump_target

---@field backward __jump_backward

---@field till __jump_till

---@field n_times __jump_n_times

---@field mode string Mode of latest jump (output of |mode()| with non-zero argument).

---@field jumping boolean Whether module is currently in "jumping mode": usage of

--- |MiniJump.smart_jump| and all mappings won't require target.

---@text

--- Initial values:

---@eval return MiniDoc.afterlines_to_code(MiniDoc.current.eval_section)

MiniJump.state = {

target = nil,

backward = false,

till = false,

n_times = 1,

mode = nil,

jumping = false,

}

--minidoc_afterlines_end

-- Module functionality =======================================================

--- Jump to target

---

--- Takes a string and jumps to its first occurrence in desired direction.

---

--- All default values are taken from |MiniJump.state| to emulate latest jump.

---

---@param target __jump_target

---@param backward __jump_backward

---@param till __jump_till

---@param n_times __jump_n_times

MiniJump.jump = function(target, backward, till, n_times)

if H.is_disabled() then return end

-- Cache inputs for future use

H.update_state(target, backward, till, n_times)

if MiniJump.state.target == nil then

H.message('Can not jump because there is no recent `target`.')

return

end

-- Determine if target is present anywhere in order to correctly enter

-- jumping mode. If not, jumping mode is not possible.

local search_pattern = [[\V]] .. vim.fn.escape(MiniJump.state.target, [[\]])

local target_is_present = vim.fn.search(search_pattern, 'wn') ~= 0

if not target_is_present then return end

-- Construct search and highlight pattern data

local pattern, hl_pattern, flags = H.make_search_data()

-- Delay highlighting after stopping previous one

local config = H.get_config()

H.timers.highlight:stop()

H.timers.highlight:start(

-- Update highlighting immediately if any highlighting is already present

H.is_highlighting() and 0 or config.delay.highlight,

vim.schedule_wrap(function() H.highlight(hl_pattern) end)

)

-- Start idle timer after stopping previous one

H.timers.idle_stop:stop()

H.timers.idle_stop:start(config.delay.idle_stop, 0, vim.schedule_wrap(function() MiniJump.stop_jumping() end))

-- Make jump(s)

H.cache.n_cursor_moved = 0

local init_cursor_data = H.get_cursor_data()

MiniJump.state.jumping = true

for _ = 1, MiniJump.state.n_times do

vim.fn.search(pattern, flags)

end

-- Open enough folds to show jump

vim.cmd('normal! zv')

-- Track cursor position to account for movement not caught by `CursorMoved`

H.cache.latest_cursor = H.get_cursor_data()

H.cache.has_changed_cursor = not vim.deep_equal(H.cache.latest_cursor, init_cursor_data)

end

--- Make smart jump

---

--- If the last movement was a jump, perform another jump with the same target.

--- Otherwise, wait for a target input (via |getcharstr()|). Res 10000 pects |v:count|.

---

--- All default values are taken from |MiniJump.state| to emulate latest jump.

---

---@param backward __jump_backward

---@param till __jump_till

MiniJump.smart_jump = function(backward, till)

if H.is_disabled() then return end

-- Jumping should stop after mode change (use `mode(1)` to track 'omap' case)

-- or if cursor has moved after latest jump

local has_changed_mode = MiniJump.state.mode ~= vim.fn.mode(1)

local has_changed_cursor = not vim.deep_equal(H.cache.latest_cursor, H.get_cursor_data())

if has_changed_mode or has_changed_cursor then MiniJump.stop_jumping() end

-- Ask for target only when needed

local target

if not MiniJump.state.jumping or MiniJump.state.target == nil then

target = H.get_target()

-- Stop if user supplied invalid target

if target == nil then return end

end

H.update_state(target, backward, till, vim.v.count1)

MiniJump.jump()

end

--- Stop jumping

---

--- Removes highlights (if any) and forces the next smart jump to prompt for

--- the target. Automatically called on appropriate Neovim |events|.

MiniJump.stop_jumping = function()

H.timers.highlight:stop()

H.timers.idle_stop:stop()

MiniJump.state.jumping = false

H.cache.n_cursor_moved = 0

H.cache.latest_cursor = nil

H.cache.msg_shown = false

H.unhighlight()

end

-- Helper data ================================================================

-- Module default config

H.default_config = vim.deepcopy(MiniJump.config)

-- Cache for various operations

H.cache = {

-- Counter of number of CursorMoved events

n_cursor_moved = 0,

-- Latest cursor position data

latest_cursor = nil,

-- Whether helper message was shown

msg_shown = false,

}

-- Timers for different delay-related functionalities

H.timers = { highlight = vim.loop.new_timer(), idle_stop = vim.loop.new_timer() }

-- Information about last match highlighting (stored *per window*):

-- - Key: windows' unique buffer identifiers.

-- - Value: table with:

-- - `id` field for match id (from `vim.fn.matchadd()`).

-- - `pattern` field for highlighted pattern.

H.window_matches = {}

-- Helper functionality =======================================================

-- Settings -------------------------------------------------------------------

H.setup_config = function(config)

H.check_type('config', config, 'table', true)

config = vim.tbl_deep_extend('force', vim.deepcopy(H.default_config), config or {})

H.check_type('delay', config.delay, 'table')

H.check_type('delay.highlight', config.delay.highlight, 'number')

H.check_type('delay.idle_stop', config.delay.idle_stop, 'number')

H.check_type('mappings', config.mappings, 'table')

H.check_type('mappings.forward', config.mappings.forward, 'string')

H.check_type('mappings.backward', config.mappings.backward, 'string')

H.check_type('mappings.forward_till', config.mappings.forward_till, 'string')

H.check_type('mappings.backward_till', config.mappings.backward_till, 'string')

H.check_type('mappings.repeat_jump', config.mappings.repeat_jump, 'string')

H.check_type('silent', config.silent, 'boolean')

return config

end

H.apply_config = function(config)

MiniJump.config = config

--stylua: ignore start

H.map('n', config.mappings.forward, '<Cmd>lua MiniJump.smart_jump(false, false)<CR>', { desc = 'Jump forward' })

H.map('n', config.mappings.backward, '<Cmd>lua MiniJump.smart_jump(true, false)<CR>', { desc = 'Jump backward' })

H.map('n', config.mappings.forward_till, '<Cmd>lua MiniJump.smart_jump(false, true)<CR>', { desc = 'Jump forward till' })

H.map('n', config.mappings.backward_till, '<Cmd>lua MiniJump.smart_jump(true, true)<CR>', { desc = 'Jump backward till' })

H.map('n', config.mappings.repeat_jump, '<Cmd>lua MiniJump.jump()<CR>', { desc = 'Repeat jump' })

H.map('x', config.mappings.forward, '<Cmd>lua MiniJump.smart_jump(false, false)<CR>', { desc = 'Jump forward' })

H.map('x', config.mappings.backward, '<Cmd>lua MiniJump.smart_jump(true, false)<CR>', { desc = 'Jump backward' })

H.map('x', config.mappings.forward_till, '<Cmd>lua MiniJump.smart_jump(false, true)<CR>', { desc = 'Jump forward till' })

H.map('x', config.mappings.backward_till, '<Cmd>lua MiniJump.smart_jump(true, true)<CR>', { desc = 'Jump backward till' })

H.map('x', config.mappings.repeat_jump, '<Cmd>lua MiniJump.jump()<CR>', { desc = 'Repeat jump' })

H.map('o', config.mappings.forward, H.make_expr_jump(false, false), { expr = true, desc = 'Jump forward' })

H.map('o', config.mappings.backward, H.make_expr_jump(true, false), { expr = true, desc = 'Jump backward' })

H.map('o', config.mappings.forward_till, H.make_expr_jump(false, true), { expr = true, desc = 'Jump forward till' })

H.map('o', config.mappings.backward_till, H.make_expr_jump(true, true), { expr = true, desc = 'Jump backward till' })

H.map('o', config.mappings.repeat_jump, H.make_expr_jump(), { expr = true, desc = 'Repeat jump' })

--stylua: ignore end

end

H.create_autocommands = function()

local gr = vim.api.nvim_create_augroup('MiniJump', {})

local au = function(event, pattern, callback, desc)

vim.api.nvim_create_autocmd(event, { group = gr, pattern = pattern, callback = callback, desc = desc })

end

au('CursorMoved', '*', H.on_cursormoved, 'On CursorMoved')

au({ 'BufLeave', 'InsertEnter' }, '*', MiniJump.stop_jumping, 'Stop jumping')

au('ColorScheme', '*', H.create_default_hl, 'Ensure colors')

end

H.create_default_hl = function() vim.api.nvim_set_hl(0, 'MiniJump', { default = true, link = 'SpellRare' }) end

H.is_disabled = function() return vim.g.minijump_disable == true or vim.b.minijump_disable == true end

H.get_config = function(config)

return vim.tbl_deep_extend('force', MiniJump.config, vim.b.minijump_config or {}, config or {})

end

-- Mappings -------------------------------------------------------------------

H.make_expr_jump = function(backward, till)

return function()

if H.is_disabled() then return '' end

-- Ask for `target` for non-repeating jump as this will be used only in

-- operator-pending mode. Dot-repeat is supported via expression-mapping.

local is_repeat_jump = backward == nil or till == nil

local target = is_repeat_jump and MiniJump.state.target or H.get_target()

-- Stop if user supplied invalid target

if target == nil then return '<Esc>' end

H.update_state(target, backward, till, vim.v.count1)

vim.schedule(function()

if H.cache.has_changed_cursor then return end

vim.cmd('undo!')

end)

return 'v<Cmd>lua MiniJump.jump()<CR>'

end

-- Autocommands ---------------------------------------------------------------

H.on_cursormoved = function()

-- Check if jumping to avoid unnecessary actions on every CursorMoved

if MiniJump.state.jumping then

H.cache.n_cursor_moved = H.cache.n_cursor_moved + 1

-- Stop jumping only if `CursorMoved` was not a result of smart jump

if H.cache.n_cursor_moved > 1 then MiniJump.stop_jumping() end

end

-- Pattern matching -----------------------------------------------------------

H.make_search_data = function()

local target = vim.fn.escape(MiniJump.state.target, [[\]])

local backward, till = MiniJump.state.backward, MiniJump.state.till

local flags = backward and 'Wb' or 'W'

local pattern, hl_pattern

if till then

-- General logic: moving pattern should match just before/after target,

-- while highlight pattern should match target for every "movable" place.

-- Also allow checking for "just before/after" across lines by accepting

-- `\n` as possible match.

if backward then

-- NOTE: use `\@<=` instead of `\zs` because it behaves better in case of

-- consecutive matches (like `xxxx` for target `x`)

pattern = target .. [[\@<=\_.]]

hl_pattern = target .. [[\ze\_.]]

else

pattern = [[\_.\ze]] .. target

hl_pattern = [[\_.\@<=]] .. target

end

else

local is_visual = vim.tbl_contains({ 'v', 'V', '\22' }, vim.fn.mode())

local is_exclusive = vim.o.selection == 'exclusive'

if not backward and is_visual and is_exclusive then

-- Still select target in case of exclusive visual selection

pattern = target .. [[\zs\_.]]

hl_pattern = target .. [[\ze\_.]]

else

pattern = target

hl_pattern = target

end

-- Enable 'very nomagic' mode and possibly case-insensitivity

local ignore_case = vim.o.ignorecase and (not vim.o.smartcase or target == target:lower())

local prefix = ignore_case and [[\V\c]] or [[\V]]

pattern, hl_pattern = prefix .. pattern, prefix .. hl_pattern

return pattern, hl_pattern, flags

end

-- Highlighting ---------------------------------------------------------------

H.highlight = function(pattern)

-- Don't do anything if already highlighting input pattern

if H.is_highlighting(pattern) then return end

-- Stop highlighting possible previous pattern. Needed to adjust highlighting

-- when inside jumping but a different kind one. Example: first jump with

-- `till = false` and then, without jumping stop, jump to same character with

-- `till = true`. If this character is first on line, highlighting should change

H.unhighlight()

-- Never highlight in Insert mode

if vim.fn.mode() == 'i' then return end

local match_id = vim.fn.matchadd('MiniJump', pattern)

H.window_matches[vim.api.nvim_get_current_win()] = { id = match_id, pattern = pattern }

end

H.unhighlight = function()

-- Remove highlighting from all windows as jumping is intended to work only

-- in current window. This will work also from other (usually popup) window.

for win_id, match_info in pairs(H.window_matches) do

if vim.api.nvim_win_is_valid(win_id) then

-- Use `pcall` because there is an error if match id is not present. It

-- can happen if something else called `clearmatches`.

pcall(vim.fn.matchdelete, match_info.id, win_id)

H.window_matches[win_id] = nil

end

---@param pattern string|nil Highlight pattern to check for. If `nil`, checks for

--- any highlighting registered in current window.

< 8111 div id="LC462" class="react-file-line html-div" data-testid="code-cell" data-line-number="462" style="position:relative">---@private

H.is_highlighting = function(pattern)

local win_id = vim.api.nvim_get_current_win()

local match_info = H.window_matches[win_id]

if match_info == nil then return false end

return pattern == nil or match_info.pattern == pattern

end

-- Utilities ------------------------------------------------------------------

H.error = function(msg) error('(mini.jump) ' .. msg, 0) end

H.check_type = function(name, val, ref, allow_nil)

if type(val) == ref or (ref == 'callable' and vim.is_callable(val)) or (allow_nil and val == nil) then return end

H.error(string.format('`%s` should be %s, not %s', name, ref, type(val)))

end

H.echo = function(msg, is_important)

if H.get_config().silent then return end

-- Construct message chunks

msg = type(msg) == 'string' and { { msg } } or msg

table.insert(msg, 1, { '(mini.jump) ', 'WarningMsg' })

-- Avoid hit-enter-prompt

local chunks = msg

if not is_important then

chunks = {}

local max_width = vim.o.columns * math.max(vim.o.cmdheight - 1, 0) + vim.v.echospace

local tot_width = 0

for _, ch in ipairs(msg) do

local new_ch = { vim.fn.strcharpart(ch[1], 0, max_width - tot_width), ch[2] }

table.insert(chunks, new_ch)

tot_width = tot_width + vim.fn.strdisplaywidth(new_ch[1])

if tot_width >= max_width then break end

end

-- Echo. Force redraw to ensure that it is effective (`:h echo-redraw`)

vim.cmd([[echo '' | redraw]])

vim.api.nvim_echo(chunks, is_important, {})

end

H.unecho = function()

if H.cache.msg_shown then vim.cmd([[echo '' | redraw]]) end

end

H.message = function(msg) H.echo(msg, true) end

H.update_state = function(target, backward, till, n_times)

MiniJump.state.mode = vim.fn.mode(1)

-- Don't use `? and <1> or <2>` because it doesn't work when `<1>` is `false`

if target ~= nil then MiniJump.state.target = target end

if backward ~= nil then MiniJump.state.backward = backward end

if till ~= nil then MiniJump.state.till = till end

if n_times ~= nil then MiniJump.state.n_times = n_times end

end

H.get_cursor_data = function() return { vim.api.nvim_get_current_win(), vim.api.nvim_win_get_cursor(0) } end

H.get_target = function()

local needs_help_msg = true

vim.defer_fn(function()

if not needs_help_msg then return end

H.echo('Enter target single character ')

H.cache.msg_shown = true

end, 1000)

local ok, char = pcall(vim.fn.getcharstr)

needs_help_msg = false

H.unecho()

-- Terminate if couldn't get input (like with <C-c>) or it is `<Esc>`

if not ok or char == '\27' then return end

return char

end

H.map = function(mode, lhs, rhs, opts)

if lhs == '' then return end

opts = vim.tbl_deep_extend('force', { silent = true }, opts or {})

vim.keymap.set(mode, lhs, rhs, opts)

end

return MiniJump

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