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pairs.lua

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function MiniPairs.cr(pair_set)
-- TODO: remove `pair_set` argument
if pair_set ~= nil and not H.showed_deprecation then
vim.notify(table.concat({
'(mini.pairs)',
[[`pair_set` arugment in both `MiniPairs.bs()` and `MiniPairs.cr()` is soft deprecated.]],
[[It is no longer needed due to the mechanism of pairs registration inside new mapping functions.]],
[[See `:h MiniPairs.map()` and `:h MiniPairs.map_buf()`.]],
[[It will be removed in the future. Sorry for this.]],
}, ' '))
H.showed_deprecation = true
end
local res = H.keys.cr
local neigh = H.get_cursor_neigh(0, 1)
if not H.is_disabled() and H.is_pair_registered(neigh, vim.fn.mode(), 0, 'cr') then
res = ('%s%s'):format(res, H.keys.above)
end
return res
end
-- Helpers --
-- Module default config
H.default_config = MiniPairs.config
-- Default value of `pair_info` for mapping functions
H.default_pair_info = { neigh_pattern = '..', register = { bs = true, cr = true } }
-- Pair sets registered *per mode-buffer-key*. Buffer `'all'` contains pairs
-- registered for all buffers.
H.registered_pairs = {
i = { all = { bs = {}, cr = {} } },
c = { all = { bs = {}, cr = {} } },
t = { all = { bs = {}, cr = {} } },
}
-- Deprecation indication. TODO: remove when there is not deprecation.
H.showed_deprecation = false
-- Precomputed keys to increase speed
-- stylua: ignore start
local function escape(s) return vim.api.nvim_replace_termcodes(s, true, true, true) end
H.keys = {
above = escape('<C-o>O'),
bs = escape('<bs>'),
cr = escape('<cr>'),
del = escape('<del>'),
keep_undo = escape('<C-g>U'),
-- NOTE: use `get_arrow_key()` instead of `H.keys.left` or `H.keys.right`
left = escape('<left>'),
right = escape('<right>')
}
-- stylua: ignore end
-- Settings
function H.setup_config(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', H.default_config, config or {})
vim.validate({
modes = { config.modes, 'table' },
['modes.insert'] = { config.modes.insert, 'boolean' },
['modes.command'] = { config.modes.command, 'boolean' },
['modes.terminal'] = { config.modes.terminal, 'boolean' },
mappings = { config.mappings, 'table' },
})
return config
end
function H.apply_config(config)
MiniPairs.config = config
-- Setup mappings in supplied modes
local mode_ids = { insert = 'i', command = 'c', terminal = 't' }
---- Compute in which modes mapping should be set up
local mode_array = {}
for name, to_set in pairs(config.modes) do
if to_set then
table.insert(mode_array, mode_ids[name])
end
end
for _, mode in pairs(mode_array) do
for key, pair_info in pairs(config.mappings) do
MiniPairs.map(mode, key, pair_info)
end
vim.api.nvim_set_keymap(mode, '<BS>', [[v:lua.MiniPairs.bs()]], { expr = true, noremap = true })
if mode == 'i' then
vim.api.nvim_set_keymap('i', '<CR>', [[v:lua.MiniPairs.cr()]], { expr = true, noremap = true })
end
end
end
function H.is_disabled()
return vim.g.minipairs_disable == true or vim.b.minipairs_disable == true
end
-- Pair registration --
function H.register_pair(pair_info, mode, buffer)
-- Process new mode
H.registered_pairs[mode] = H.registered_pairs[mode] or { all = { bs = {}, cr = {} } }
local mode_pairs = H.registered_pairs[mode]
-- Process new buffer
mode_pairs[buffer] = mode_pairs[buffer] or { bs = {}, cr = {} }
-- Register pair if it is not already registered
local register, pair = pair_info.register, pair_info.pair
if register.bs and not vim.tbl_contains(mode_pairs[buffer].bs, pair) then
table.insert(mode_pairs[buffer].bs, pair)
end
if register.cr and not vim.tbl_contains(mode_pairs[buffer].cr, pair) then
table.insert(mode_pairs[buffer].cr, pair)
end
end
function H.unregister_pair(pair, mode, buffer)
local mode_pairs = H.registered_pairs[mode]
if not (mode_pairs and mode_pairs[buffer]) then
return
end
local buf_pairs = mode_pairs[buffer]
for _, key in ipairs({ 'bs', 'cr' }) do
for i, p in ipairs(buf_pairs[key]) do
if p == pair then
table.remove(buf_pairs[key], i)
break
end
end
end
end
function H.is_pair_registered(pair, mode, buffer, key)
local mode_pairs = H.registered_pairs[mode]
if not mode_pairs then
return false
end
if vim.tbl_contains(mode_pairs['all'][key], pair) then
return true
end
buffer = buffer == 0 and vim.api.nvim_get_current_buf() or buffer
local buf_pairs = mode_pairs[buffer]
if not buf_pairs then
return false
end
return vim.tbl_contains(buf_pairs[key], pair)
end
-- Work with pair_info --
function H.ensure_pair_info(pair_info)
vim.validate({ pair_info = { pair_info, 'table' } })
pair_info = vim.tbl_deep_extend('force', H.default_pair_info, pair_info)
vim.validate({
action = { pair_info.action, 'string' },
pair = { pair_info.pair, 'string' },
neigh_pattern = { pair_info.neigh_pattern, 'string' },
register = { pair_info.register, 'table' },
['register.bs'] = { pair_info.register.bs, 'boolean' },
['register.cr'] = { pair_info.register.cr, 'boolean' },
})
return pair_info
end
function H.pair_info_to_map_rhs(pair_info)
return ('v:lua.MiniPairs.%s(%s, %s)'):format(
pair_info.action,
vim.inspect(pair_info.pair),
vim.inspect(pair_info.neigh_pattern)
)
end
-- Various helpers
function H.map(mode, key, command)
vim.api.nvim_set_keymap(mode, key, command, { expr = true, noremap = true })
end
function H.get_cursor_neigh(start, finish)
local line, col
if vim.fn.mode() == 'c' then
line = vim.fn.getcmdline()
col = vim.fn.getcmdpos()
-- Adjust start and finish because output of `getcmdpos()` starts counting
-- columns from 1
start = start - 1
finish = finish - 1
else
line = vim.api.nvim_get_current_line()
col = vim.api.nvim_win_get_cursor(0)[2]
end
-- Add '\r' and '\n' to always return 2 characters
return string.sub(('%s%s%s'):format('\r', line, '\n'), col + 1 + start, col + 1 + finish)
end
function H.neigh_match(pattern)
return (pattern == nil) or (H.get_cursor_neigh(0, 1):find(pattern) ~= nil)
end
function H.get_arrow_key(key)
if vim.fn.mode() == 'i' then
-- Using left/right keys in insert mode breaks undo sequence and, more
-- importantly, dot-repeat. To avoid this, use 'i_CTRL-G_U' mapping.
return H.keys.keep_undo .. H.keys[key]
else
return H.keys[key]
end
end
return MiniPairs
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