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--- *mini.operators* Text edit operators
--- *MiniOperators*
---
--- MIT License Copyright (c) 2023 Evgeni Chasnovski
---
--- ==============================================================================
---
--- Features:
--- - Operators:
--- - Evaluate text and replace with output.
--- - Exchange text regions.
--- - Multiply (duplicate) text.
--- - Replace text with register.
--- - Sort text.
---
--- - Automated configurable mappings to operate on textobject, line, selection.
--- Can be disabled in favor of more control with |MiniOperators.make_mappings()|.
---
--- - All operators support |[count]| and dot-repeat.
---
--- See |MiniOperators-overview| and |MiniOperators.config| for more details.
---
--- # Setup ~
---
--- This module needs a setup with `require('mini.operators').setup({})` (replace
--- `{}` with your `config` table). It will create global Lua table `MiniOperators`
--- which you can use for scripting or manually (with `:lua MiniOperators.*`).
---
--- See |MiniOperators.config| for available config settings.
---
--- You can override runtime config settings (but not `config.mappings`) locally
--- to buffer inside `vim.b.minioperators_config` which should have same structure
--- as `MiniOperators.config`. See |mini.nvim-buffer-local-config| for more details.
---
--- # Comparisons ~
---
--- - 'gbprod/substitute.nvim':
--- - Has "replace" and "exchange" variants, but not others from this module.
--- - Has "replace/substitute" over range functionality, while this module
--- does not by design (it is similar to |:s| functionality while not
--- offering significantly lower mental complexity).
--- - "Replace" highlights pasted text, while in this module it doesn't.
--- - "Exchange" doesn't work across buffers, while in this module it does.
---
--- - 'svermeulen/vim-subversive':
--- - Main inspiration for "replace" functionality, so they are mostly similar
--- for this operator.
--- - Has "replace/substitute" over range functionality, while this module
--- does not by design.
---
--- - 'tommcdo/vim-exchange':
--- - Main inspiration for "exchange" functionality, so they are mostly
--- similar for this operator.
--- - Doesn't work across buffers, while this module does.
---
--- - 'christoomey/vim-sort-motion':
--- - Uses |:sort| for linewise sorting, while this module uses consistent
--- sorting algorithm (by default, see |MiniOperators.default_sort_func()|).
--- - Sorting algorithm can't be customized, while this module allows this
--- (see `sort.func` in |MiniOperators.config|).
--- - For charwise region uses only commas as separators, while this module
--- can also separate by semicolon or whitespace (by default,
--- see |MiniOperators.default_sort_func()|).
---
--- # Highlight groups ~
---
--- * `MiniOperatorsExchangeFrom` - first region to exchange.
---
--- To change any highlight group, modify it directly with |:highlight|.
---
--- # Disabling ~
---
--- To disable main functionality, set `vim.g.minioperators_disable` (globally) or
--- `vim.b.minioperators_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.
--- # General overview ~
---
--- Operator defines an action that will be performed on a textobject, motion,
--- or visual selection (similar to |d|, |c|, etc.). When makes sense, it can also
--- respect supplied register (like "replace" operator).
---
--- This module implements each operator in a separate dedicated function
--- (like |MiniOperators.replace()| for "replace" operator). Each such function
--- takes `mode` as argument and acts depending on it:
---
--- - If `mode` is `nil` (or not explicitly supplied), it sets |operatorfunc|
--- to this dedicated function and returns `g@` assuming being called from
--- expression mapping. See |:map-operator| and |:map-expression| for more details.
---
--- - If `mode` is "char", "line", or "block", it acts as `operatorfunc` and performs
--- action for region between |`[| and |`]| marks.
---
--- - If `mode` is "visual", it performs action for region between |`<| and |`>| marks.
---
--- For more details about specific operator, see help for its function:
---
--- - Evaluate: |MiniOperators.evaluate()|
--- - Exchange: |MiniOperators.exchange()|
--- - Multiply: |MiniOperators.multiply()|
--- - Replace: |MiniOperators.replace()|
--- - Sort: |MiniOperators.sort()|
---
--- *MiniOperators-mappings*
--- ## Mappings ~
---
--- All operators are automatically mapped during |MiniOperators.setup()| execution.
--- Mappings keys are deduced from `prefix` field of corresponding `config` entry.
---
--- For each operator the following mappings are created:
---
--- - In Normal mode to operate on textobject. Uses `prefix` directly.
--- - In Normal mode to operate on line. Appends to `prefix` the last character.
--- This aligns with |operator-doubled| and established patterns for operators
--- with more than two characters, like |guu|, |gUU|, etc.
--- - In Visual mode to operate on visual selection. Uses `prefix` directly.
---
--- Example of default mappings for "replace":
--- - `gr` in Normal mode for operating on textobject.
--- Example of usage: `griw` replaces "inner word" with default register.
--- - `grr` in Normal mode for operating on line.
--- Example of usage: `grr` replaces current line.
--- - `gr` in Visual mode for operating on visual selection.
--- Example of usage: `viw` selects "inner word" and `gr` replaces it.
---
--- There are two suggested ways to customize mappings:
---
--- - Change `prefix` in |MiniOperators.setup()| call. For example, doing >
---
--- require('mini.operators').setup({ replace = { prefix = 'cr' } })
--- <
--- will make mappings for `cr`/`crr`/`cr` instead of `gr`/`grr`/`gr`.
---
--- - Disable automated mapping creation by supplying empty string as prefix and
--- use |MiniOperators.make_mappings()| directly. For example: >
---
--- -- Disable automated creation of "replace"
--- local operators = require('mini.operators')
--- operators.setup({ replace = { prefix = '' } })
---
--- -- Make custom mappings
--- operators.make_mappings(
--- 'replace',
--- { textobject = 'cr', line = 'crr', selection = 'cr' }
--- )
---@tag MiniOperators-overview
---@alias __operators_mode string|nil One of `nil`, `'char'`, `'line'`, `''block`, `'visual'`.
---@alias __operators_content table Table with the following fields:
--- - <lines> `(table)` - array with content lines.
--- - <submode> `(string)` - region submode. One of `'v'`, `'V'`, `'<C-v>'` (escaped).
---@diagnostic disable:undefined-field
---@diagnostic disable:discard-returns
---@diagnostic disable:unused-local
---@diagnostic disable:cast-local-type
-- Module definition ==========================================================
local MiniOperators = {}
local H = {}
--- Module setup
---
---@param config table|nil Module config table. See |MiniOperators.config|.
---
---@usage `require('mini.operators').setup({})` (replace `{}` with your `config` table).
MiniOperators.setup = function(config)
-- Export module
_G.MiniOperators = MiniOperators
-- Setup config
config = H.setup_config(config)
-- Apply config
H.apply_config(config)
-- Create default highlighting
H.create_default_hl()
end
--stylua: ignore
--- Module config
---
--- Default values:
---@eval return MiniDoc.afterlines_to_code(MiniDoc.current.eval_section)
---@text # Evaluate ~
---
--- `evaluate.prefix` is a string used to automatically infer operator mappings keys
--- during |MiniOperators.setup()|. See |MiniOperators-mappings|.
---
--- `evaluate.func` is a function used to actually evaluate text region.
--- If `nil` (default), |MiniOperators.default_evaluate_func()| is used.
---
--- This function will take content table representing selected text as input
--- and should return array of lines as output (each item per line).
--- Content table has fields `lines`, array of region lines, and `submode`,
--- one of `v`, `V`, `\22` (escaped `<C-v>`) for charwise, linewise, and blockwise.
---
--- To customize evaluation per language, set `evaluate.func` in buffer-local
--- config (`vim.b.minioperators_config`; see |mini.nvim-buffer-local-config|).
---
--- # Exchange ~
---
--- `exchange.prefix` is a string used to automatically infer operator mappings keys
--- during |MiniOperators.setup()|. See |MiniOperators-mappings|.
---
--- Note: default value "gx" overrides |netrw-gx| and |gx| / |v_gx|. If you prefer
--- using its original functionality, choose different `config.prefix`.
---
--- `exchange.reindent_linewise` is a boolean indicating whether newly put linewise
--- text should preserve indent of replaced text. In other words, if `false`,
--- regions are exchanged preserving their indents; if `true` - without them.
---
--- # Multiply ~
---
--- `multiply.prefix` is a string used to automatically infer operator mappings keys
--- during |MiniOperators.setup()|. See |MiniOperators-mappings|.
---
--- `multiply.func` is a function used to optionally update multiplied text.
--- If `nil` (default), text used as is.
---
--- Takes content table as input (see "Evaluate" section) and should return
--- array of lines as output.
---
--- # Replace ~
---
--- `replace.prefix` is a string used to automatically infer operator mappings keys
--- during |MiniOperators.setup()|. See |MiniOperators-mappings|.
---
--- `replace.reindent_linewise` is a boolean indicating whether newly put linewise
--- text should preserve indent of replaced text.
---
--- # Sort ~
---
--- `sort.prefix` is a string used to automatically infer operator mappings keys
--- during |MiniOperators.setup()|. See |MiniOperators-mappings|.
---
--- `sort.func` is a function used to actually sort text region.
--- If `nil` (default), |MiniOperators.default_sort_func()| is used.
---
--- Takes content table as input (see "Evaluate" section) and should return
--- array of lines as output.
---
--- Example of `sort.func` which asks user for custom delimiter for charwise region: >
---
--- local sort_func = function(content)
--- local opts = {}
--- if content.submode == 'v' then
--- -- Ask for delimiter to be treated as is (not as Lua pattern)
--- local delimiter = vim.fn.input('Sort delimiter: ')
--- -- Treat surrounding whitespace as part of split
--- opts.split_patterns = { '%s*' .. vim.pesc(delimiter) .. '%s*' }
--- end
--- return MiniOperators.default_sort_func(content, opts)
--- end
---
--- require('mini.operators').setup({ sort = { func = sort_func } })
MiniOperators.config = {
-- Each entry configures one operator.
-- `prefix` defines keys mapped during `setup()`: in Normal mode
-- to operate on textobject and line, in Visual - on selection.
-- Evaluate text and replace with output
evaluate = {
prefix = 'g=',
-- Function which does the evaluation
func = nil,
},
-- Exchange text regions
exchange = {
prefix = 'gx',
-- Whether to reindent new text to match previous indent
reindent_linewise = true,
},
-- Multiply (duplicate) text
multiply = {
prefix = 'gm',
-- Function which can modify text before multiplying
func = nil,
},
-- Replace text with register
replace = {
prefix = 'gr',
-- Whether to reindent new text to match previous indent
reindent_linewise = true,
},
-- Sort text
sort = {
prefix = 'gs',
-- Function which does the sort
func = nil,
}
}
--minidoc_afterlines_end
--- Evaluate text and replace with output
---
--- It replaces the region with the output of `config.evaluate.func`.
--- By default it is |MiniOperators.default_evaluate_func()| which evaluates
--- text as Lua code depending on the region submode.
---
---@param mode __operators_mode
MiniOperators.evaluate = function(mode)
if H.is_disabled() or not vim.bo.modifiable then return '' end
-- If used without arguments inside expression mapping, set it as
-- 'operatorfunc' and call it again as a result of expression mapping.
if mode == nil then
vim.o.operatorfunc = 'v:lua.MiniOperators.evaluate'
return 'g@'
end
local evaluate_func = H.get_config().evaluate.func or MiniOperators.default_evaluate_func
local data = H.get_region_data(mode)
data.reindent_linewise = true
H.apply_content_func(evaluate_func, data)
end
--- Exchange text regions
---
--- Has two-step logic:
--- - First call remembers the region as the one to be exchanged and highlights it
--- with `MiniOperatorsExchangeFrom` highlight group.
--- - Second call performs the exchange. Basically, a two substeps action:
--- "yank both regions" and replace each one with another.
---
--- Notes:
--- - Use `<C-c>` to stop exchanging after the first step.
---
--- - Exchanged regions can have different (char,line,block)-wise submodes.
---
--- - Works with most cases of intersecting regions, but not officially supported.
---
---@param mode __operators_mode
MiniOperators.exchange = function(mode)
if H.is_disabled() or not vim.bo.modifiable then return '' end
-- If used without arguments inside expression mapping, set it as
-- 'operatorfunc' and call it again as a result of expression mapping.
if mode == nil then
vim.o.operatorfunc = 'v:lua.MiniOperators.exchange'
return 'g@'
end
-- Depending on present cache data, perform exchange step
if not H.exchange_has_step_one() then
-- Store data about first region
H.cache.exchange.step_one = H.exchange_set_region_extmark(mode, true)
-- Temporarily remap `<C-c>` to stop the exchange
H.exchange_set_stop_mapping()
else
-- Store data about second region
H.cache.exchange.step_two = H.exchange_set_region_extmark(mode, false)
-- Do exchange
H.exchange_do()
-- Stop exchange
H.exchange_stop()
end
end
--- Multiply (duplicate) text
---
--- Copies a region (without affecting registers) and puts it directly after.
---
--- Notes:
--- - Supports two types of |[count]|: `[count1]gm[count2][textobject]` with default
--- `config.multiply.prefix` makes `[count1]` copies of region defined by
--- `[count2][textobject]`. Example: `2gm3aw` - 2 copies of `3aw`.
---
--- - |[count]| for "line" mapping (`gmm` by default) is treated as `[count1]` from
--- previous note.
---
--- - Advantages of using this instead of "yank" + "paste":
--- - Doesn't modify any register, while separate steps need some register to
--- hold multiplied text.
--- - In most cases separate steps would be "yank" + "move cursor" + "paste",
--- while "multiply" makes it at once.
---
---@param mode __operators_mode
MiniOperators.multiply = function(mode)
if H.is_disabled() or not vim.bo.modifiable then return '' end
-- If used without arguments inside expression mapping, set it as
-- 'operatorfunc' and call it again as a result of expression mapping.
if mode == nil then
vim.o.operatorfunc = 'v:lua.MiniOperators.multiply'
H.cache.multiply = { count = vim.v.count1 }
-- Reset count to allow two counts: first for paste, second for textobject
return vim.api.nvim_replace_termcodes('<Cmd>echon ""<CR>g@', true, true, true)
end
local count = mode == 'visual' and vim.v.count1 or H.cache.multiply.count
local data = H.get_region_data(mode)
local mark_from, mark_to, submode = data.mark_from, data.mark_to, data.submode
H.with_temp_context({ registers = { 'x', '"' } }, function()
-- Yank to temporary "x" register
local yank_data = { mark_from = mark_from, mark_to = mark_to, submode = submode, mode = mode, register = 'x' }
H.do_between_marks('y', yank_data)
-- Modify lines in "x" register
local func = H.get_config().multiply.func or function(content) return content.lines end
local x_reginfo = vim.fn.getreginfo('x')
x_reginfo.regcontents = func({ lines = x_reginfo.regcontents, submode = submode })
vim.fn.setreg('x', x_reginfo)
-- Adjust cursor for a proper paste
local ref_coords = H.multiply_get_ref_coords(mark_from, mark_to, submode)
vim.api.nvim_win_set_cursor(0, ref_coords)
-- Paste after textobject from temporary register
H.cmd_normal(count .. '"
10000
;xp')
-- Adjust cursor to be at start of pasted text. Not in linewise mode as it
-- already is at first non-blank, while this moves to first column.
if submode ~= 'V' then vim.cmd('normal! `[') end
end)
end
--- Replace text with register
---
--- Notes:
--- - Supports two types of |[count]|: `[count1]gr[count2][textobject]` with default
--- `config.replace.prefix` puts `[count1]` contents of register over region defined
--- by `[count2][textobject]`. Example: `2gr3aw` - 2 register contents over `3aw`.
---
--- - |[count]| for "line" mapping (`grr` by default) is treated as `[count1]` from
--- previous note.
---
--- - Advantages of using this instead of "visually select" + "paste with |v_P|":
--- - As operator it is dot-repeatable which has cumulative gain in case of
--- multiple replacing is needed.
--- - Can automatically reindent.
---
---@param mode __operators_mode
MiniOperators.replace = function(mode)
if H.is_disabled() or not vim.bo.modifiable then return '' end
-- If used without arguments inside expression mapping, set it as
-- 'operatorfunc' and call it again as a result of expression mapping.
if mode == nil then
vim.o.operatorfunc = 'v:lua.MiniOperators.replace'
H.cache.replace = { count = vim.v.count1, register = vim.v.register }
-- Reset count to allow two counts: first for paste, second for textobject
return vim.api.nvim_replace_termcodes('<Cmd>echon ""<CR>g@', true, true, true)
end
-- Do replace
-- - Compute `count` and `register` prior getting region data because it
-- invalidates them for active Visual mode
local count = mode == 'visual' and vim.v.count1 or H.cache.replace.count
local register = mode == 'visual' and vim.v.register or H.cache.replace.register
local data = H.get_region_data(mode)
data.count = count
data.register = register
data.reindent_linewise = H.get_config().replace.reindent_linewise
H.replace_do(data)
return ''
end
--- Sort text
---
--- It replaces the region with the output of `config.sort.func`.
--- By default it is |MiniOperators.default_sort_func()| which sorts the text
--- depending on submode.
---
--- Notes:
--- - "line" mapping is charwise (as there is not much sense in sorting
--- linewise a single line). This also results into no |[count]| support.
---
---@param mode __operators_mode
MiniOperators.sort = function(mode)
if H.is_disabled() or not vim.bo.modifiable then return '' end
-- If used without arguments inside expression mapping, set it as
-- 'operatorfunc' and call it again as a result of expression mapping.
if mode == nil then
vim.o.operatorfunc = 'v:lua.MiniOperators.sort'
return 'g@'
end
local sort_func = H.get_config().sort.func or MiniOperators.default_sort_func
H.apply_content_func(sort_func, H.get_region_data(mode))
end
--- Make operator mappings
---
---@param operator_name string Name of existing operator from this module.
---@param lhs_tbl table Table with mappings keys. Should have these fields:
--- - <textobject> `(string)` - Normal mode mapping to operate on textobject.
--- - <line> `(string)` - Normal mode mapping to operate on line.
--- Usually an alias for textobject mapping followed by |_|.
--- For "sort" it operates charwise on whole line without left and right
--- whitespace (as there is not much sense in sorting linewise a single line).
--- - <selection> `(string)` - Visual mode mapping to operate on selection.
---
--- Supply empty string to not create particular mapping. Note: creating `line`
--- mapping needs `textobject` mapping to be set.
---
---@usage >
--- require('mini.operators').make_mappings(
--- 'replace',
--- { textobject = 'cr', line = 'crr', selection = 'cr' }
--- )
MiniOperators.make_mappings = function(operator_name, lhs_tbl)
-- Validate arguments
if not (type(operator_name) == 'string' and MiniOperators[operator_name] ~= nil) then
H.error('`operator_name` should be a valid operator name.')
end
local is_keys_tbl = type(lhs_tbl) == 'table'
and type(lhs_tbl.textobject) == 'string'
and type(lhs_tbl.line) == 'string'
and type(lhs_tbl.selection) == 'string'
if not is_keys_tbl then H.error('`lhs_tbl` should be a valid table of keys.') end
if lhs_tbl.line ~= '' and lhs_tbl.textobject == '' then
H.error('Creating mapping for `line` needs mapping for `textobject`.')
end
-- Make mappings
local operator_desc = operator_name:sub(1, 1):upper() .. operator_name:sub(2)
local expr_opts = { expr = true, replace_keycodes = false, desc = operator_desc .. ' operator' }
H.map('n', lhs_tbl.textobject, string.format('v:lua.MiniOperators.%s()', operator_name), expr_opts)
local rhs = lhs_tbl.textobject .. '_'
-- - Make `sort()` line mapping to be charwise
if operator_name == 'sort' then rhs = '^' .. lhs_tbl.textobject .. 'g_' end
H.map('n', lhs_tbl.line, rhs, { remap = true, desc = operator_desc .. ' line' })
local visual_rhs = string.format([[<Cmd>lua MiniOperators.%s('visual')<CR>]], operator_name)
H.map('x', lhs_tbl.selection, visual_rhs, { desc = operator_desc .. ' selection' })
end
--- Default evaluate function
---
--- Evaluate text as Lua code and return object from last line (like if last
--- line is prepended with `return` if it is not already).
---
--- Behavior depends on region submode:
---
--- - For charwise and linewise regions, text evaluated as is.
---
--- - For blockwise region, lines are evaluated per line using only first lines
--- of outputs. This allows separate execution of lines in order to provide
--- something different compared to linewise region.
---
---@param content __operators_content
MiniOperators.default_evaluate_func = function(content)
if not H.is_content(content) then H.error('`content` should be a content table.') end
local lines, submode = content.lines, content.submode
-- In non-blockwise mode return the result of the last line
if submode ~= H.submode_keys.block then return H.eval_lua_lines(lines) end
-- In blockwise selection evaluate and return each line separately
return vim.tbl_map(function(l) return H.eval_lua_lines({ l })[1] end, lines)
end
--- Default sort function
---
--- Sort text based on region submode:
---
--- - For charwise region, split by separator pattern, sort parts, merge back
--- with separators. Actual pattern is inferred based on the array of patterns
--- from `opts.split_patterns`: whichever element is present in the text is
--- used, preferring the earlier one if several are present.
--- Example: sorting "c, b; a" line with default `opts.split_patterns` results
--- into "b; a, c" as it is split only by comma.
---
--- - For linewise and blockwise regions sort lines as is.
---
--- Notes:
--- - Sort is done with |table.sort()| on an array of lines, which doesn't treat
--- whitespace or digits specially. Use |:sort| for more complicated tasks.
---
--- - Pattern is allowed to be an empty string in which case split results into
--- all characters as parts.
---
--- - Pad pattern in `split_patterns` with `%s*` to include whitespace into separator.
--- Example: line "b _ a" with "_" pattern will be sorted as " a_b " (because
--- it is split as "b ", "_", " a" ) while with "%s*_%s*" pattern it results
--- into "a _ b" (split as "b", " _ ", "a").
---
---@param content __operators_content
---@param opts table|nil Options. Possible fields:
--- - <compare_fun> `(function)` - compare function compatible with |table.sort()|.
--- Default: direct compare with `<`.
--- - <split_patterns> `(table)` - array of split Lua patterns to be used for
--- charwise submode. Order is important.
--- Default: `{ '%s*,%s*', '%s*;%s*', '%s+', '' }`.
MiniOperators.default_sort_func = function(content, opts)
if not H.is_content(content) then H.error('`content` should be a content table.') end
opts = vim.tbl_deep_extend('force', { compare_fun = nil, split_patterns = nil }, opts or {})
local compare_fun = opts.compare_fun or function(a, b) return a < b end
if not vim.is_callable(compare_fun) then H.error('`opts.compare_fun` should be callable.') end
local split_patterns = opts.split_patterns or { '%s*,%s*', '%s*;%s*', '%s+', '' }
if not H.islist(split_patterns) then H.error('`opts.split_patterns` should be array.') end
-- Prepare lines to sort
local lines, submode = content.lines, content.submode
if submode ~= 'v' then
table.sort(lines, compare_fun)
return lines
end
local parts, seps = H.sort_charwise_split(lines, split_patterns)
table.sort(parts, compare_fun)
return H.sort_charwise_unsplit(parts, seps)
end
-- Helper data ================================================================
-- Module default config
H.default_config = vim.deepcopy(MiniOperators.config)
-- Namespaces
H.ns_id = {
exchange = vim.api.nvim_create_namespace('MiniOperatorsExchange'),
}
-- Cache for all operators
H.cache = {
exchange = {},
multiply = {},
replace = {},
}
-- Submode keys for
H.submode_keys = {
char = 'v',
line = 'V',
block = vim.api.nvim_replace_termcodes('<C-v>', true, true, true),
}
-- Helper functionality =======================================================
-- Settings -------------------------------------------------------------------
H.setup_config = function(config)
-- General idea: if some table elements are not present in user-supplied
-- `config`, take them from default config
vim.validate({ config = { config, 'table', true } })
config = vim.tbl_deep_extend('force', vim.deepcopy(H.default_config), config or {})
vim.validate({
evaluate = { config.evaluate, 'table' },
exchange = { config.exchange, 'table' },
multiply = { config.multiply, 'table' },
replace = { config.replace, 'table' },
sort = { config.sort, 'table' },
})
vim.validate({
['evaluate.prefix'] = { config.evaluate.prefix, 'string' },
['evaluate.func'] = { config.evaluate.func, 'function', true },
['exchange.prefix'] = { config.exchange.prefix, 'string' },
['exchange.reindent_linewise'] = { config.exchange.reindent_linewise, 'boolean' },
['multiply.prefix'] = { config.multiply.prefix, 'string' },
['multiply.func'] = { config.multiply.func, 'function', true },
['replace.prefix'] = { config.replace.prefix, 'string' },
['replace.reindent_linewise'] = { config.replace.reindent_linewise, 'boolean' },
['sort.prefix'] = { config.sort.prefix, 'string' },
['sort.func'] = { config.sort.func, 'function', true },
})
return config
end
H.apply_config = function(config)
MiniOperators.config = config
-- Make mappings
local map_all = function(operator_name)
-- Map only valid LHS
local prefix = config[operator_name].prefix
if type(prefix) ~= 'string' or prefix == '' then return end
local lhs_tbl = {
textobject = prefix,
line = prefix .. vim.fn.strcharpart(prefix, vim.fn.strchars(prefix) - 1, 1),
selection = prefix,
}
MiniOperators.make_mappings(operator_name, lhs_tbl)
end
map_all('evaluate')
map_all('exchange')
map_all('multiply')
map_all('replace')
map_all('sort')
end
H.is_disabled = function() return vim.g.minioperators_disable == true or vim.b.minioperators_disable == true end
H.get_config = function(config)
return vim.tbl_deep_extend('force', MiniOperators.config, vim.b.minioperators_config or {}, config or {})
end
H.create_default_hl = function()
vim.api.nvim_set_hl(0, 'MiniOperatorsExchangeFrom', { default = true, link = 'IncSearch' })
end
-- Evaluate -------------------------------------------------------------------
H.eval_lua_lines = function(lines)
-- Copy to not modify input
local lines_copy, n = vim.deepcopy(lines), #lines
lines_copy[n] = (lines_copy[n]:find('^%s*return%s+') == nil and 'return ' or '') .. lines_copy[n]
local str_to_eval = table.concat(lines_copy, '\n')
-- Allow returning tuple with any value(s) being `nil`
return H.inspect_objects(assert(loadstring(str_to_eval))())
end
H.inspect_objects = function(...)
local objects = {}
-- Not using `{...}` because it removes `nil` input
for i = 1, select('#', ...) do
local v = select(i, ...)
table.insert(objects, vim.inspect(v))
end
return vim.split(table.concat(objects, '\n'), '\n')
end
-- Exchange -------------------------------------------------------------------
H.exchange_do = function()
local step_one, step_two = H.cache.exchange.step_one, H.cache.exchange.step_two
-- Do nothing if regions are the same
if H.exchange_is_same_steps(step_one, step_two) then return end
-- Save temporary registers
local reg_one, reg_two = vim.fn.getreginfo('a'), vim.fn.getreginfo('b')
-- Create step temporary contexts (data that should not change)
local context_one = { buf_id = step_one.buf_id, marks = { 'x', 'y' }, registers = { '"' } }
local context_two = { buf_id = step_two.buf_id, marks = { 'x', 'y' }, registers = { '"' } }
-- Put regions into registers. NOTE: do it before actual exchange to allow
-- intersecting regions.
local populating_register = function(step, register)
return function()
H.exchange_set_step_marks(step, { 'x', 'y' })
local yank_data =
{ mark_from = 'x', mark_to = 'y', submode = step.submode, mode = step.mode, register = register }
H.do_between_marks('y', yank_data)
end
end
H.with_temp_context(context_one, populating_register(step_one, 'a'))
H.with_temp_context(context_two, populating_register(step_two, 'b'))
-- Sequentially replace
local replacing = function(step, register)
return function()
H.exchange_set_step_marks(step, { 'x', 'y' })
local replace_data = {
count = 1,
mark_from = 'x',
mark_to = 'y',
mode = step.mode,
register = register,
reindent_linewise = H.get_config().exchange.reindent_linewise,
submode = step.submode,
}
H.replace_do(replace_data)
end
end
H.with_temp_context(context_one, replacing(step_one, 'b'))
H.with_temp_context(context_two, replacing(step_two, 'a'))
-- Restore temporary registers
vim.fn.setreg('a', reg_one)
vim.fn.setreg('b', reg_two)
end
H.exchange_has_step_one = function()
local step_one = H.cache.exchange.step_one
if type(step_one) ~= 'table' then return false end
if not vim.api.nvim_buf_is_valid(step_one.buf_id) then
H.exchange_stop()
return false
end
return true
end
H.exchange_set_region_extmark = function(mode, add_highlight)
local ns_id = H.ns_id.exchange
-- Compute regular marks for target region
local region_data = H.get_region_data(mode)
local submode = region_data.submode
local markcoords_from, markcoords_to = H.get_mark(region_data.mark_from), H.get_mark(region_data.mark_to)
-- Compute extmark's range for target region
local extmark_from = { markcoords_from[1] - 1, markcoords_from[2] }
local extmark_to = { markcoords_to[1] - 1, H.get_next_char_bytecol(markcoords_to) }
-- Adjust for visual selection in case of 'selection=exclusive'
if region_data.mark_to == '>' and vim.o.selection == 'exclusive' then extmark_to[2] = extmark_to[2] - 1 end
-- - Tweak columns for linewise marks
if submode == 'V' then
extmark_from[2] = 0
extmark_to[2] = vim.fn.col({ extmark_to[1] + 1, '$' }) - 1
end
-- Set extmark to represent region. Add highlighting inside of it only if
-- needed and not in blockwise submode (can't highlight that way).
local buf_id = vim.api.nvim_get_current_buf()
local extmark_hl_group
if add_highlight and submode ~= H.submode_keys.block then extmark_hl_group = 'MiniOperatorsExchangeFrom' end
local extmark_opts = {
end_row = extmark_to[1],
end_col = extmark_to[2],
hl_group = extmark_hl_group,
-- Using this gravity is better for handling empty lines in linewise mode
end_right_gravity = mode == 'line',
}
local region_extmark_id = vim.api.nvim_buf_set_extmark(buf_id, ns_id, extmark_from[1], extmark_from[2], extmark_opts)
-- - Possibly add highlighting for blockwise mode
if add_highlight and extmark_hl_group == nil then
-- Highlighting blockwise region needs full register type with width
local opts = { regtype = H.exchange_get_blockwise_regtype(markcoords_from, markcoords_to) }
vim.highlight.range(buf_id, ns_id, 'MiniOperatorsExchangeFrom', extmark_from, extmark_to, opts)
end
-- Return data to cache
return { buf_id = buf_id, mode = mode, submode = submode, extmark_id = region_extmark_id }
end
H.exchange_get_region_extmark = function(step)
return vim.api.nvim_buf_get_extmark_by_id(step.buf_id, H.ns_id.exchange, step.extmark_id, { details = true })
end
H.exchange_set_step_marks = function(step, mark_names)
local extmark_details = H.exchange_get_region_extmark(step)
H.set_mark(mark_names[1], { extmark_details[1] + 1, extmark_details[2] })
-- Unadjust for visual selection in case of 'selection=exclusive'
local should_unadjust = step.mode == 'visual' and vim.o.selection == 'exclusive'
local col_offset = should_unadjust and 1 or 0
H.set_mark(mark_names[2], { extmark_details[3].end_row + 1, extmark_details[3].end_col - 1 + col_offset })
end
H.exchange_get_blockwise_regtype = function(markcoords_from, markcoords_to)
local f = function()
-- Yank into "z" register and return its blockwise type
H.set_mark('x', markcoords_from)
H.set_mark('y', markcoords_to)
local yank_data = { mark_from = 'x', mark_to = 'y', submode = H.submode_keys.block, mode = 'block', register = 't' }
H.do_between_marks('y', yank_data)
return vim.fn.getregtype('t')
end
return H.with_temp_context({ buf_id = 0, marks = { 'x', 'y' }, registers = { 't' } }, f)
end
H.exchange_stop = function()
H.exchange_del_stop_mapping()
local cur, ns_id = H.cache.exchange, H.ns_id.exchange
if cur.step_one ~= nil then pcall(vim.api.nvim_buf_clear_namespace, cur.step_one.buf_id, ns_id, 0, -1) end
if cur.step_two ~= nil then pcall(vim.api.nvim_buf_clear_namespace, cur.step_two.buf_id, ns_id, 0, -1) end
H.cache.exchange = {}
end
H.exchange_set_stop_mapping = function()
local lhs = '<C-c>'
H.cache.exchange.stop_restore_map_data = vim.fn.maparg(lhs, 'n', false, true)
vim.keymap.set('n', lhs, H.exchange_stop, { desc = 'Stop exchange' })
end
H.exchange_del_stop_mapping = function()
local map_data = H.cache.exchange.stop_restore_map_data
if map_data == nil then return end
-- Try restore previous mapping if it was set. NOTE: Neovim<0.8 doesn't have
-- `mapset()`, so resort to deleting.
if vim.tbl_count(map_data) > 0 and vim.fn.has('nvim-0.8') == 1 then
vim.fn.mapset('n', false, map_data)
else
vim.keymap.del('n', map_data.lhs or '<C-c>')
end
end
H.exchange_is_same_steps = function(step_one, step_two)
if step_one.buf_id ~= step_two.buf_id or step_one.submode ~= step_two.submode then return false end
-- Region's start and end should be the same
local one, two = H.exchange_get_region_extmark(step_one), H.exchange_get_region_extmark(step_two)
return one[1] == two[1] and one[2] == two[2] and one[3].end_row == two[3].end_row and one[3].end_col == two[3].end_col
end
-- Multiply -------------------------------------------------------------------
H.multiply_get_ref_coords = function(mark_from, mark_to, submode)
local markcoords_from, markcoords_to = H.get_mark(mark_from), H.get_mark(mark_to)
if mark_to == '>' and vim.o.selection == 'exclusive' then markcoords_to[2] = markcoords_to[2] - 1 end
if submode ~
754E
= H.submode_keys.block then return markcoords_to end
-- In blockwise selection go to top right corner (allowing for presence of
-- multibyte characters)
local row = math.min(markcoords_from[1], markcoords_to[1])
if vim.fn.has('nvim-0.8') == 0 then
-- Neovim<0.8 doesn't have `virtcol2col()`
local col = math.max(markcoords_from[2], markcoords_to[2])
return { row, col - 1 }
end
-- - "from"/"to" may not only be "top-left"/"bottom-right" but also
-- "top-right" and "bottom-left"
local virtcol_from = vim.fn.virtcol({ markcoords_from[1], markcoords_from[2] + 1 })
local virtcol_to = vim.fn.virtcol({ markcoords_to[1], markcoords_to[2] + 1 })
local virtcol = math.max(virtcol_from, virtcol_to)
local col = vim.fn.virtcol2col(0, row, virtcol)
return { row, col - 1 }
end
-- Replace --------------------------------------------------------------------
--- Delete region between two marks and paste from register
---
---@param data table Fields:
--- - <count> (optional) - Number of times to paste.
--- - <mark_from> - Name of "from" mark.
--- - <mark_to> - Name of "to" mark.
--- - <mode> - Operator mode. One of 'visual', 'char', 'line', 'block'.
--- - <register> - Name of register from which to paste.
--- - <submode> - Region submode. One of 'v', 'V', '\22'.
---@private
H.replace_do = function(data)
-- NOTE: Ideally, implementation would leverage "Visually select - press `P`"
-- approach, but it has issues with dot-repeat. The `cancel_redo()` approach
-- doesn't work probably because `P` implementation uses more than one
-- dot-repeat overwrite.
local register, submode = data.register, data.submode
local mark_from, mark_to = data.mark_from, data.mark_to
-- Do nothing with empty/unknown register
local register_type = H.get_reg_type(register)
if register_type == '' then H.error('Register ' .. vim.inspect(register) .. ' is empty or unknown.') end
-- Determine if region is at edge which is needed for the correct paste key
local from_line, from_col = unpack(H.get_mark(mark_from))
local to_line, to_col = unpack(H.get_mark(mark_to))
local edge_to_col = vim.fn.col({ to_line, '$' }) - 1 - (vim.o.selection == 'exclusive' and 0 or 1)
local is_edge_line = submode == 'V' and to_line == vim.fn.line('$')
local is_edge_col = submode ~= 'V' and to_col == edge_to_col
local is_edge = is_edge_line or is_edge_col
local covers_linewise_all_buffer = is_edge_line and from_line == 1
-- Compute current indent if needed
local init_indent
local should_reindent = data.reindent_linewise and data.submode == 'V' and vim.o.equalprg == ''
if should_reindent then init_indent = H.get_region_indent(mark_from, mark_to) end
-- Delete region to black whole register
-- - Delete single character in blockwise submode with inclusive motion.
-- See https://github.com/neovim/neovim/issues/24613
local is_blockwise_single_cell = submode == H.submode_keys.block and from_line == to_line and from_col == to_col
local forced_motion = is_blockwise_single_cell and 'v' or submode