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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,28 @@ | ||
| -- Compatible Neovim buffer related API | ||
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| local M = {} | ||
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| --- @param bufnr integer | ||
| --- @param name string | ||
| --- @return any | ||
| M.get_buf_option = function(bufnr, name) | ||
| if vim.fn.has("nvim-0.8") > 0 then | ||
| return vim.api.nvim_get_option_value(name, { buf = bufnr }) | ||
| else | ||
| return vim.api.nvim_buf_get_option(bufnr, name) | ||
| end | ||
| end | ||
|
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| --- @param bufnr integer | ||
| --- @param name string | ||
| --- @param value any | ||
| --- @return any | ||
| M.set_buf_option = function(bufnr, name, value) | ||
| if vim.fn.has("nvim-0.8") > 0 then | ||
| return vim.api.nvim_set_option_value(name, value, { buf = bufnr }) | ||
| else | ||
| return vim.api.nvim_buf_set_option(bufnr, name, value) | ||
| end | ||
| end | ||
|
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||
| return M |
Empty file.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,229 @@ | ||
| -- Drop-in replacement 'RingBuffer' data structure | ||
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| local M = {} | ||
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| --- @class commons.RingBuffer | ||
| --- @field pos integer | ||
| --- @field queue any[] | ||
| --- @field size integer | ||
| --- @field maxsize integer | ||
| local RingBuffer = {} | ||
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| --- @param maxsize integer? | ||
| --- @return commons.RingBuffer | ||
| function RingBuffer:new(maxsize) | ||
| assert(type(maxsize) == "number" and maxsize > 0) | ||
| local o = { | ||
| pos = 0, | ||
| queue = {}, | ||
| size = 0, | ||
| maxsize = maxsize, | ||
| } | ||
| setmetatable(o, self) | ||
| self.__index = self | ||
| return o | ||
| end | ||
|
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| --- @param idx integer | ||
| --- @return integer | ||
| function RingBuffer:_inc(idx) | ||
| if idx == self.maxsize then | ||
| return 1 | ||
| else | ||
| return idx + 1 | ||
| end | ||
| end | ||
|
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| --- @param idx integer | ||
| --- @return integer | ||
| function RingBuffer:_dec(idx) | ||
| if idx == 1 then | ||
| return self.maxsize | ||
| else | ||
| return idx - 1 | ||
| end | ||
| end | ||
|
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| --- @param item any | ||
| --- @return integer | ||
| function RingBuffer:push(item) | ||
| assert(self.size >= 0 and self.size <= self.maxsize) | ||
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| if self.size < self.maxsize then | ||
| table.insert(self.queue, item) | ||
| self.pos = self:_inc(self.pos) | ||
| self.size = self.size + 1 | ||
| else | ||
| self.pos = self:_inc(self.pos) | ||
| self.queue[self.pos] = item | ||
| end | ||
| return self.pos | ||
| end | ||
|
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| --- @return any? | ||
| function RingBuffer:pop() | ||
| if self.size <= 0 then | ||
| return nil | ||
| end | ||
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| local old = self.queue[self.pos] | ||
| self.queue[self.pos] = nil | ||
| self.size = self.size - 1 | ||
| self.pos = self:_dec(self.pos) | ||
| return old | ||
| end | ||
|
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| --- @return any? | ||
| function RingBuffer:peek() | ||
| if self.size <= 0 then | ||
| return nil | ||
| end | ||
| return self.queue[self.pos] | ||
| end | ||
|
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| --- @return integer | ||
| function RingBuffer:clear() | ||
| local old = self.size | ||
| self.pos = 0 | ||
| self.queue = {} | ||
| self.size = 0 | ||
| return old | ||
| end | ||
|
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| -- RingBufferIterator { | ||
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| -- usage: | ||
| -- | ||
| -- ```lua | ||
| -- local it = ringbuf:iterator() | ||
| -- local item = nil | ||
| -- repeat | ||
| -- item = it:next() | ||
| -- if item then | ||
| -- -- consume item data | ||
| -- end | ||
| -- until item | ||
| -- ``` | ||
| -- | ||
| --- @class commons._RingBufferIterator | ||
| --- @field ringbuf commons.RingBuffer | ||
| --- @field index integer | ||
| --- @field initial_index integer | ||
| local _RingBufferIterator = {} | ||
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| --- @param ringbuf commons.RingBuffer | ||
| --- @param index integer | ||
| --- @return commons._RingBufferIterator | ||
| function _RingBufferIterator:new(ringbuf, index) | ||
| assert(type(ringbuf) == "table") | ||
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| local o = { | ||
| ringbuf = ringbuf, | ||
| index = index, | ||
| initial_index = index, | ||
| } | ||
| setmetatable(o, self) | ||
| self.__index = self | ||
| return o | ||
| end | ||
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| --- @return boolean | ||
| function _RingBufferIterator:has_next() | ||
| if self.ringbuf.size == 0 then | ||
| return false | ||
| end | ||
| if self.index <= 0 or self.index > self.ringbuf.size then | ||
| return false | ||
| end | ||
| if | ||
| self.index ~= self.initial_index | ||
| and self.ringbuf:_inc(self.index) == self.initial_index | ||
| then | ||
| return false | ||
| end | ||
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| return true | ||
| end | ||
|
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| --- @return any? | ||
| function _RingBufferIterator:next() | ||
| assert(self:has_next()) | ||
| assert(self.index >= 1 and self.index <= self.ringbuf.maxsize) | ||
| local item = self.ringbuf.queue[self.index] | ||
| self.index = self.ringbuf:_inc(self.index) | ||
| return item | ||
| end | ||
|
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| -- RingBufferIterator } | ||
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| -- RingBufferRIterator { | ||
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| --- @class commons._RingBufferRIterator | ||
| --- @field ringbuf commons.RingBuffer | ||
| --- @field index integer | ||
| --- @field initial_index integer | ||
| local _RingBufferRIterator = {} | ||
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| --- @param ringbuf commons.RingBuffer | ||
| --- @param index integer | ||
| --- @return commons._RingBufferRIterator | ||
| function _RingBufferRIterator:new(ringbuf, index) | ||
| assert(type(ringbuf) == "table") | ||
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| local o = { | ||
| ringbuf = ringbuf, | ||
| index = index, | ||
| initial_index = index, | ||
| } | ||
| setmetatable(o, self) | ||
| self.__index = self | ||
| return o | ||
| end | ||
|
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| --- @return boolean | ||
| function _RingBufferRIterator:has_next() | ||
| if self.ringbuf.size == 0 then | ||
| return false | ||
| end | ||
| if self.index <= 0 or self.index > self.ringbuf.size then | ||
| return false | ||
| end | ||
| if | ||
| self.index ~= self.initial_index | ||
| and self.ringbuf:_dec(self.index) == self.initial_index | ||
| then | ||
| return false | ||
| end | ||
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| return true | ||
| end | ||
|
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| --- @return any? | ||
| function _RingBufferRIterator:next() | ||
| assert(self:has_next()) | ||
| assert(self.index >= 1 and self.index <= self.ringbuf.maxsize) | ||
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| local item = self.ringbuf.queue[self.index] | ||
| self.index = self.ringbuf:_dec(self.index) | ||
| return item | ||
| end | ||
|
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| -- RingBufferRIterator } | ||
|
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| --- @return commons._RingBufferIterator | ||
| function RingBuffer:iterator() | ||
| if self.size < self.maxsize then | ||
| return _RingBufferIterator:new(self, 0) | ||
| else | ||
| return _RingBufferIterator:new(self, self:_inc(self.pos)) | ||
| end | ||
| end | ||
|
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| --- @return commons._RingBufferRIterator | ||
| function RingBuffer:riterator() | ||
| return _RingBufferRIterator:new(self, self.pos) | ||
| end | ||
|
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| M.RingBuffer = RingBuffer | ||
|
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||
| return M |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,28 @@ | ||
| -- Compatible Neovim window related API | ||
|
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| local M = {} | ||
|
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| --- @param winnr integer | ||
| --- @param name string | ||
| --- @return any | ||
| M.get_win_option = function(winnr, name) | ||
| if vim.fn.has("nvim-0.8") > 0 then | ||
| return vim.api.nvim_get_option_value(name, { win = winnr }) | ||
| else | ||
| return vim.api.nvim_win_get_option(winnr, name) | ||
| end | ||
| end | ||
|
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| --- @param winnr integer | ||
| --- @param name string | ||
| --- @param value any | ||
| --- @return any | ||
| M.set_win_option = function(winnr, name, value) | ||
| if vim.fn.has("nvim-0.8") > 0 then | ||
| return vim.api.nvim_set_option_value(name, value, { win = winnr }) | ||
| else | ||
| return vim.api.nvim_win_set_option(winnr, name, value) | ||
| end | ||
| end | ||
|
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| return M |
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