mirror of https://github.com/neovim/neovim.git
294 lines
11 KiB
Lua
294 lines
11 KiB
Lua
---@meta
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-- luacheck: no unused args
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error('Cannot require a meta file')
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--- @brief <pre>help
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--- vim.api.{func}({...}) *vim.api*
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--- Invokes Nvim |API| function {func} with arguments {...}.
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--- Example: call the "nvim_get_current_line()" API function: >lua
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--- print(tostring(vim.api.nvim_get_current_line()))
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---
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--- vim.NIL *vim.NIL*
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--- Special value representing NIL in |RPC| and |v:null| in Vimscript
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--- conversion, and similar cases. Lua `nil` cannot be used as part of a Lua
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--- table representing a Dictionary or Array, because it is treated as
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--- missing: `{"foo", nil}` is the same as `{"foo"}`.
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---
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--- vim.type_idx *vim.type_idx*
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--- Type index for use in |lua-special-tbl|. Specifying one of the values from
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--- |vim.types| allows typing the empty table (it is unclear whether empty Lua
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--- table represents empty list or empty array) and forcing integral numbers
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--- to be |Float|. See |lua-special-tbl| for more details.
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---
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--- vim.val_idx *vim.val_idx*
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--- Value index for tables representing |Float|s. A table representing
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--- floating-point value 1.0 looks like this: >lua
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--- {
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--- [vim.type_idx] = vim.types.float,
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--- [vim.val_idx] = 1.0,
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--- }
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--- < See also |vim.type_idx| and |lua-special-tbl|.
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---
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--- vim.types *vim.types*
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--- Table with possible values for |vim.type_idx|. Contains two sets of
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--- key-value pairs: first maps possible values for |vim.type_idx| to
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--- human-readable strings, second maps human-readable type names to values
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--- for |vim.type_idx|. Currently contains pairs for `float`, `array` and
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--- `dictionary` types.
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---
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--- Note: One must expect that values corresponding to `vim.types.float`,
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--- `vim.types.array` and `vim.types.dictionary` fall under only two following
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--- assumptions:
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--- 1. Value may serve both as a key and as a value in a table. Given the
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--- properties of Lua tables this basically means “value is not `nil`”.
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--- 2. For each value in `vim.types` table `vim.types[vim.types[value]]` is the
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--- same as `value`.
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--- No other restrictions are put on types, and it is not guaranteed that
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--- values corresponding to `vim.types.float`, `vim.types.array` and
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--- `vim.types.dictionary` will not change or that `vim.types` table will only
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--- contain values for these three types.
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---
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--- *log_levels* *vim.log.levels*
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--- Log levels are one of the values defined in `vim.log.levels`:
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---
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--- vim.log.levels.DEBUG
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--- vim.log.levels.ERROR
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--- vim.log.levels.INFO
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--- vim.log.levels.TRACE
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--- vim.log.levels.WARN
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--- vim.log.levels.OFF
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---
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--- </pre>
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---@nodoc
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---@class vim.NIL
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---@type vim.NIL
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---@nodoc
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vim.NIL = ...
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--- Returns true if the code is executing as part of a "fast" event handler,
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--- where most of the API is disabled. These are low-level events (e.g.
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--- |lua-loop-callbacks|) which can be invoked whenever Nvim polls for input.
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--- When this is `false` most API functions are callable (but may be subject
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--- to other restrictions such as |textlock|).
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function vim.in_fast_event() end
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--- Creates a special empty table (marked with a metatable), which Nvim
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--- converts to an empty dictionary when translating Lua values to Vimscript
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--- or API types. Nvim by default converts an empty table `{}` without this
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--- metatable to an list/array.
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---
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--- Note: If numeric keys are present in the table, Nvim ignores the metatable
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--- marker and converts the dict to a list/array anyway.
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--- @return table
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function vim.empty_dict() end
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--- Sends {event} to {channel} via |RPC| and returns immediately. If {channel}
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--- is 0, the event is broadcast to all channels.
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---
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--- This function also works in a fast callback |lua-loop-callbacks|.
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--- @param channel integer
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--- @param method string
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--- @param ...? any
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function vim.rpcnotify(channel, method, ...) end
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--- Sends a request to {channel} to invoke {method} via |RPC| and blocks until
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--- a response is received.
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---
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--- Note: NIL values as part of the return value is represented as |vim.NIL|
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--- special value
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--- @param channel integer
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--- @param method string
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--- @param ...? any
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function vim.rpcrequest(channel, method, ...) end
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--- Compares strings case-insensitively.
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--- @param a string
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--- @param b string
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--- @return 0|1|-1
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--- if strings are
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--- equal, {a} is greater than {b} or {a} is lesser than {b}, respectively.
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function vim.stricmp(a, b) end
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--- Convert UTF-32 or UTF-16 {index} to byte index. If {use_utf16} is not
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--- supplied, it defaults to false (use UTF-32). Returns the byte index.
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---
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--- Invalid UTF-8 and NUL is treated like in |vim.str_utfindex()|.
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--- An {index} in the middle of a UTF-16 sequence is rounded upwards to
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--- the end of that sequence.
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--- @param str string
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--- @param index number
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--- @param use_utf16? any
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function vim.str_byteindex(str, index, use_utf16) end
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--- Gets a list of the starting byte positions of each UTF-8 codepoint in the given string.
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---
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--- Embedded NUL bytes are treated as terminating the string.
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--- @param str string
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--- @return table
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function vim.str_utf_pos(str) end
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--- Gets the distance (in bytes) from the starting byte of the codepoint (character) that {index}
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--- points to.
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---
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--- The result can be added to {index} to get the starting byte of a character.
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---
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--- Examples:
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---
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--- ```lua
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--- -- The character 'æ' is stored as the bytes '\xc3\xa6' (using UTF-8)
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---
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--- -- Returns 0 because the index is pointing at the first byte of a character
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--- vim.str_utf_start('æ', 1)
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---
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--- -- Returns -1 because the index is pointing at the second byte of a character
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--- vim.str_utf_start('æ', 2)
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--- ```
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---
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--- @param str string
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--- @param index number
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--- @return number
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function vim.str_utf_start(str, index) end
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--- Gets the distance (in bytes) from the last byte of the codepoint (character) that {index} points
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--- to.
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---
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--- Examples:
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---
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--- ```lua
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--- -- The character 'æ' is stored as the bytes '\xc3\xa6' (using UTF-8)
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---
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--- -- Returns 0 because the index is pointing at the last byte of a character
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--- vim.str_utf_end('æ', 2)
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---
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--- -- Returns 1 because the index is pointing at the penultimate byte of a character
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--- vim.str_utf_end('æ', 1)
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--- ```
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---
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--- @param str string
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--- @param index number
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--- @return number
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function vim.str_utf_end(str, index) end
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--- Convert byte index to UTF-32 and UTF-16 indices. If {index} is not
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--- supplied, the length of the string is used. All indices are zero-based.
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---
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--- Embedded NUL bytes are treated as terminating the string. Invalid UTF-8
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--- bytes, and embedded surrogates are counted as one code point each. An
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--- {index} in the middle of a UTF-8 sequence is rounded upwards to the end of
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--- that sequence.
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--- @param str string
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--- @param index? number
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--- @return integer UTF-32 index
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--- @return integer UTF-16 index
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function vim.str_utfindex(str, index) end
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--- The result is a String, which is the text {str} converted from
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--- encoding {from} to encoding {to}. When the conversion fails `nil` is
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--- returned. When some characters could not be converted they
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--- are replaced with "?".
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--- The encoding names are whatever the iconv() library function
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--- can accept, see ":Man 3 iconv".
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---
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--- @param str string Text to convert
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--- @param from number Encoding of {str}
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--- @param to number Target encoding
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--- @param opts? table<string,any>
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--- @return string|nil Converted string if conversion succeeds, `nil` otherwise.
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function vim.iconv(str, from, to, opts) end
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--- Schedules {fn} to be invoked soon by the main event-loop. Useful
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--- to avoid |textlock| or other temporary restrictions.
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--- @param fn function
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function vim.schedule(fn) end
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--- Wait for {time} in milliseconds until {callback} returns `true`.
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---
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--- Executes {callback} immediately and at approximately {interval}
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--- milliseconds (default 200). Nvim still processes other events during
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--- this time.
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---
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--- Cannot be called while in an |api-fast| event.
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---
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--- Examples:
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---
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--- ```lua
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--- ---
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--- -- Wait for 100 ms, allowing other events to process
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--- vim.wait(100, function() end)
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---
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--- ---
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--- -- Wait for 100 ms or until global variable set.
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--- vim.wait(100, function() return vim.g.waiting_for_var end)
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---
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--- ---
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--- -- Wait for 1 second or until global variable set, checking every ~500 ms
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--- vim.wait(1000, function() return vim.g.waiting_for_var end, 500)
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---
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--- ---
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--- -- Schedule a function to set a value in 100ms
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--- vim.defer_fn(function() vim.g.timer_result = true end, 100)
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---
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--- -- Would wait ten seconds if results blocked. Actually only waits 100 ms
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--- if vim.wait(10000, function() return vim.g.timer_result end) then
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--- print('Only waiting a little bit of time!')
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--- end
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--- ```
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---
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--- @param time integer Number of milliseconds to wait
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--- @param callback? fun(): boolean Optional callback. Waits until {callback} returns true
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--- @param interval? integer (Approximate) number of milliseconds to wait between polls
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--- @param fast_only? boolean If true, only |api-fast| events will be processed.
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--- @return boolean, nil|-1|-2
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--- - If {callback} returns `true` during the {time}: `true, nil`
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--- - If {callback} never returns `true` during the {time}: `false, -1`
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--- - If {callback} is interrupted during the {time}: `false, -2`
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--- - If {callback} errors, the error is raised.
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function vim.wait(time, callback, interval, fast_only) end
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--- Attach to ui events, similar to |nvim_ui_attach()| but receive events
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--- as Lua callback. Can be used to implement screen elements like
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--- popupmenu or message handling in Lua.
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---
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--- {options} should be a dictionary-like table, where `ext_...` options should
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--- be set to true to receive events for the respective external element.
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---
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--- {callback} receives event name plus additional parameters. See |ui-popupmenu|
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--- and the sections below for event format for respective events.
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---
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--- WARNING: This api is considered experimental. Usability will vary for
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--- different screen elements. In particular `ext_messages` behavior is subject
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--- to further changes and usability improvements. This is expected to be
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--- used to handle messages when setting 'cmdheight' to zero (which is
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--- likewise experimental).
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---
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--- Example (stub for a |ui-popupmenu| implementation):
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---
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--- ```lua
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--- ns = vim.api.nvim_create_namespace('my_fancy_pum')
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---
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--- vim.ui_attach(ns, {ext_popupmenu=true}, function(event, ...)
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--- if event == "popupmenu_show" then
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--- local items, selected, row, col, grid = ...
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--- print("display pum ", #items)
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--- elseif event == "popupmenu_select" then
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--- local selected = ...
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--- print("selected", selected)
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--- elseif event == "popupmenu_hide" then
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--- print("FIN")
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--- end
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--- end)
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--- ```
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---
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--- @param ns integer
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--- @param options table<string, any>
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--- @param callback fun()
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function vim.ui_attach(ns, options, callback) end
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--- Detach a callback previously attached with |vim.ui_attach()| for the
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--- given namespace {ns}.
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--- @param ns integer
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function vim.ui_detach(ns) end
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