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*mini.pairs* Autopairs
*MiniPairs*
MIT License Copyright (c) 2021 Evgeni Chasnovski
==============================================================================
Features:
- Functionality to work with two "paired" characters conditional on cursor's
neighborhood (character to its left and character to its right).
- Usage should be through making appropriate mappings using |MiniPairs.map|
or in |MiniPairs.setup| (for global mapping), |MiniPairs.map_buf| (for
buffer mapping).
- Pairs get automatically registered for special <BS> (all configured modes)
and <CR> (only Insert mode) mappings. Pressing the key inside pair will
delete whole pair and insert extra blank line inside pair respectively.
Note: these mappings are autocreated if they do not override existing ones.
What it doesn't do:
- It doesn't support multiple characters as "open" and "close" symbols. Use
snippets for that.
- It doesn't support dependency on filetype. Use |i_CTRL-V| to insert
single symbol or `autocmd` command or 'after/ftplugin' approach to:
- `:lua MiniPairs.map_buf(0, 'i', <*>, <pair_info>)` - make new mapping
for '<*>' in current buffer.
- `:lua MiniPairs.unmap_buf(0, 'i', <*>, <pair>)` - unmap key `<*>` while
unregistering `<pair>` pair in current buffer. Note: this reverts
mapping done by |MiniPairs.map_buf|. If mapping was done with
|MiniPairs.map|, unmap for buffer in usual Neovim manner:
`inoremap <buffer> <*> <*>` (this maps `<*>` key to do the same it
does by default).
- Disable module for buffer (see 'Disabling' section).
# Setup ~
This module needs a setup with `require('mini.pairs').setup({})`
(replace `{}` with your `config` table). It will create global Lua table
`MiniPairs` which you can use for scripting or manually (with
`:lua MiniPairs.*`).
See |MiniPairs.config| for `config` structure and default values.
This module doesn't have runtime options, so using `vim.b.minipairs_config`
will have no effect here.
# Example mappings ~
>lua
-- Register quotes inside `config` of `MiniPairs.setup()`
mappings = {
['"'] = { register = { cr = true } },
["'"] = { register = { cr = true } },
}
-- Insert `<>` pair if `<` is typed at line start, don't register for <CR>
local lt_opts = {
action = 'open',
pair = '<>',
neigh_pattern = '\r.',
register = { cr = false },
}
MiniPairs.map('i', '<', lt_opts)
local gt_opts = { action = 'close', pair = '<>', register = { cr = false } }
MiniPairs.map('i', '>', gt_opts)
-- Create symmetrical `$$` pair only in Tex files
local map_tex = function()
MiniPairs.map_buf(0, 'i', '$', { action = 'closeopen', pair = '$$' })
end
vim.api.nvim_create_autocmd(
'FileType',
{ pattern = 'tex', callback = map_tex }
)
<
# Notes ~
- Make sure to make proper mapping of <CR> in order to support completion
plugin of your choice:
- For |MiniCompletion| see 'Helpful key mappings' section.
- For current implementation of "hrsh7th/nvim-cmp" there is no need to
make custom mapping. You can use default setup, which will confirm
completion selection if popup is visible and expand pair otherwise.
- Having mapping in terminal mode can conflict with:
- Autopairing capabilities of interpretators (`ipython`, `radian`).
- Vim mode of terminal itself.
# Disabling ~
To disable, set `vim.g.minipairs_disable` (globally) or `vim.b.minipairs_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.
------------------------------------------------------------------------------
*MiniPairs.setup()*
`MiniPairs.setup`({config})
Module setup
Parameters ~
{config} `(table|nil)` Module config table. See |MiniPairs.config|.
Usage ~
>lua
require('mini.pairs').setup() -- use default config
-- OR
require('mini.pairs').setup({}) -- replace {} with your config table
<
------------------------------------------------------------------------------
*MiniPairs.config*
`MiniPairs.config`
Module config
Default values:
>lua
MiniPairs.config = {
-- In which modes mappings from this `config` should be created
modes = { insert = true, command = false, terminal = false },
-- Global mappings. Each right hand side should be a pair information, a
-- table with at least these fields (see more in |MiniPairs.map|):
-- - <action> - one of "open", "close", "closeopen".
-- - <pair> - two character string for pair to be used.
-- By default pair is not inserted after `\`, quotes are not recognized by
-- <CR>, `'` does not insert pair after a letter.
-- Only parts of tables can be tweaked (others will use these defaults).
-- Supply `false` instead of table to not map particular key.
mappings = {
['('] = { action = 'open', pair = '()', neigh_pattern = '[^\\].' },
['['] = { action = 'open', pair = '[]', neigh_pattern = '[^\\].' },
['{'] = { action = 'open', pair = '{}', neigh_pattern = '[^\\].' },
[')'] = { action = 'close', pair = '()', neigh_pattern = '[^\\].' },
[']'] = { action = 'close', pair = '[]', neigh_pattern = '[^\\].' },
['}'] = { action = 'close', pair = '{}', neigh_pattern = '[^\\].' },
['"'] = { action = 'closeopen', pair = '""', neigh_pattern = '[^\\].', register = { cr = false } },
["'"] = { action = 'closeopen', pair = "''", neigh_pattern = '[^%a\\].', register = { cr = false } },
['`'] = { action = 'closeopen', pair = '``', neigh_pattern = '[^\\].', register = { cr = false } },
},
}
<
------------------------------------------------------------------------------
*MiniPairs.map()*
`MiniPairs.map`({mode}, {lhs}, {pair_info}, {opts})
Make global mapping
This is a wrapper for |nvim_set_keymap()| but instead of right hand side of
mapping (as string) it expects table with pair information.
Using this function instead of |nvim_set_keymap()| allows automatic
registration of pairs which will be recognized by <BS> and <CR>.
It also infers mapping description from `pair_info`.
Parameters ~
{mode} `(string)` `mode` for |nvim_set_keymap()|.
{lhs} `(string)` `lhs` for |nvim_set_keymap()|.
{pair_info} `(table)` Table with pair information. Fields:
- <action> - one of "open" (for |MiniPairs.open|),
"close" (for |MiniPairs.close|), or "closeopen" (for |MiniPairs.closeopen|).
- <pair> - two character string to be used as argument for action function.
Can contain multibyte characters.
- <neigh_pattern> - optional 'two character' neighborhood pattern to be
used as argument for action function. Note: neighborhood might contain
multiple characters.
Default: `'..'` (no restriction from neighborhood).
- <register> - optional table with information about whether this pair will
be recognized by <BS> (in |MiniPairs.bs|) and/or <CR> (in |MiniPairs.cr|).
Should have boolean fields <bs> and <cr> (both `true` by default).
{opts} `(table|nil)` Optional table `opts` for |nvim_set_keymap()|. Elements
`expr` and `noremap` won't be recognized (`true` by default).
------------------------------------------------------------------------------
*MiniPairs.map_buf()*
`MiniPairs.map_buf`({buffer}, {mode}, {lhs}, {pair_info}, {opts})
Make buffer mapping
This is a wrapper for |nvim_buf_set_keymap()| but instead of string right
hand side of mapping it expects table with pair information similar to one
in |MiniPairs.map|.
Using this function instead of |nvim_buf_set_keymap()| allows automatic
registration of pairs which will be recognized by <BS> and <CR>.
It also infers mapping description from `pair_info`.
Parameters ~
{buffer} `(number)` `buffer` for |nvim_buf_set_keymap()|.
{mode} `(string)` `mode` for |nvim_buf_set_keymap()|.
{lhs} `(string)` `lhs` for |nvim_buf_set_keymap()|.
{pair_info} `(table)` Table with pair information.
{opts} `(table|nil)` Optional table `opts` for |nvim_buf_set_keymap()|.
Elements `expr` and `noremap` won't be recognized (`true` by default).
------------------------------------------------------------------------------
*MiniPairs.unmap()*
`MiniPairs.unmap`({mode}, {lhs}, {pair})
Remove global mapping
A wrapper for |nvim_del_keymap()| which registers supplied `pair`.
Parameters ~
{mode} `(string)` `mode` for |nvim_del_keymap()|.
{lhs} `(string)` `lhs` for |nvim_del_keymap()|.
{pair} `(string)` Pair which should be unregistered from both <BS> and <CR>.
Should be explicitly supplied to avoid confusion.
Supply `''` to not unregister pair.
------------------------------------------------------------------------------
*MiniPairs.unmap_buf()*
`MiniPairs.unmap_buf`({buffer}, {mode}, {lhs}, {pair})
Remove buffer mapping
Wrapper for |nvim_buf_del_keymap()| which also unregisters supplied `pair`.
Note: this only reverts mapping done by |MiniPairs.map_buf|. If mapping was
done with |MiniPairs.map|, revert to default behavior for buffer: >lua
-- Map `X` key to do the same it does by default
vim.keymap.set('i', 'X', 'X', { buffer = true })
<
Parameters ~
{buffer} `(number)` `buffer` for |nvim_buf_del_keymap()|.
{mode} `(string)` `mode` for |nvim_buf_del_keymap()|.
{lhs} `(string)` `lhs` for |nvim_buf_del_keymap()|.
{pair} `(string)` Pair which should be unregistered from both <BS> and <CR>.
Should be explicitly supplied to avoid confusion.
Supply `''` to not unregister pair.
------------------------------------------------------------------------------
*MiniPairs.open()*
`MiniPairs.open`({pair}, {neigh_pattern})
Process "open" symbols
Used as |map-expr| mapping for "open" symbols in asymmetric pair ('(', '[',
etc.). If neighborhood doesn't match supplied pattern, function results
into "open" symbol. Otherwise, it pastes whole pair and moves inside pair
with |<Left>|.
Used inside |MiniPairs.map| and |MiniPairs.map_buf| for an actual mapping.
Parameters ~
{pair} `(string)` String with two characters representing pair.
{neigh_pattern} `(string|nil)` Pattern for two neighborhood characters.
Character "\r" indicates line start, "\n" - line end.
Return ~
`(string)` Keys performing "open" action.
------------------------------------------------------------------------------
*MiniPairs.close()*
`MiniPairs.close`({pair}, {neigh_pattern})
Process "close" symbols
Used as |map-expr| mapping for "close" symbols in asymmetric pair (')',
']', etc.). If neighborhood doesn't match supplied pattern, function
results into "close" symbol. Otherwise it jumps over symbol to the right of
cursor (with |<Right>|) if it is equal to "close" one and inserts it
otherwise.
Used inside |MiniPairs.map| and |MiniPairs.map_buf| for an actual mapping.
Parameters ~
{pair} `(string)` String with two characters representing pair.
{neigh_pattern} `(string|nil)` Pattern for two neighborhood characters.
Character "\r" indicates line start, "\n" - line end.
Return ~
`(string)` Keys performing "close" action.
------------------------------------------------------------------------------
*MiniPairs.closeopen()*
`MiniPairs.closeopen`({pair}, {neigh_pattern})
Process "closeopen" symbols
Used as |map-expr| mapping for 'symmetrical' symbols (from pairs '""',
'\'\'', '``'). It tries to perform 'closeopen action': move over right
character (with |<Right>|) if it is equal to second character from pair or
conditionally paste pair otherwise (with |MiniPairs.open()|).
Used inside |MiniPairs.map| and |MiniPairs.map_buf| for an actual mapping.
Parameters ~
{pair} `(string)` String with two characters representing pair.
{neigh_pattern} `(string|nil)` Pattern for two neighborhood characters.
Character "\r" indicates line start, "\n" - line end.
Return ~
`(string)` Keys performing "closeopen" action.
------------------------------------------------------------------------------
*MiniPairs.bs()*
`MiniPairs.bs`({key})
Process |<BS>|
Used as |map-expr| mapping for <BS> in Insert mode. It removes whole pair
(via executing <Del> after input key) if neighborhood is equal to a whole
pair recognized for current buffer. Pair is recognized for current buffer
if it is registered for global or current buffer mapping. Pair is
registered as a result of calling |MiniPairs.map| or |MiniPairs.map_buf|.
Mapped by default inside |MiniPairs.setup|.
This can be used to modify other Insert mode keys to respect neighborhood
pair. Examples: >lua
local map_bs = function(lhs, rhs)
vim.keymap.set('i', lhs, rhs, { expr = true, replace_keycodes = false })
end
map_bs('<C-h>', 'v:lua.MiniPairs.bs()')
map_bs('<C-w>', 'v:lua.MiniPairs.bs("\23")')
map_bs('<C-u>', 'v:lua.MiniPairs.bs("\21")')
<
Parameters ~
{key} `(string|nil)` Key to use. Default: `'<BS>'`.
Return ~
`(string)` Keys performing "backspace" action.
------------------------------------------------------------------------------
*MiniPairs.cr()*
`MiniPairs.cr`({key})
Process |i_<CR>|
Used as |map-expr| mapping for <CR> in insert mode. It puts "close"
symbol on next line (via `<CR><C-o>O`) if neighborhood is equal to a whole
pair recognized for current buffer. Pair is recognized for current buffer
if it is registered for global or current buffer mapping. Pair is
registered as a result of calling |MiniPairs.map| or |MiniPairs.map_buf|.
Note: some relevant mode changing events are temporarily ignored
(with |eventignore|) to counter effect of using |i_CTRL-O|.
Mapped by default inside |MiniPairs.setup|.
Parameters ~
{key} `(string|nil)` Key to use. Default: `'<CR>'`.
Return ~
`(string)` Keys performing "new line" action.
vim:tw=78:ts=8:noet:ft=help:norl: