Remove ringbuffer.lua

ringbuffer.lua

@@ -1,94 +0,0 @@
---[[
-Copyright (c) 2010-2013 Matthias Richter
-
-Permission is hereby granted, free of charge, to any person obtaining a copy
-of this software and associated documentation files (the "Software"), to deal
-in the Software without restriction, including without limitation the rights
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-copies of the Software, and to permit persons to whom the Software is
-furnished to do so, subject to the following conditions:
-
-The above copyright notice and this permission notice shall be included in
-all copies or substantial portions of the Software.
-
-Except as contained in this notice, the name(s) of the above copyright holders
-shall not be used in advertising or otherwise to promote the sale, use or
-other dealings in this Software without prior written authorization.
-
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-THE SOFTWARE.
-]]--
-
-local ringbuffer = {}
-ringbuffer.__index = ringbuffer
-
-local function new(...)
-	local rb = {}
-	rb.items = {...}
-	rb.current = 1
-	return setmetatable(rb, ringbuffer)
-end
-
-function ringbuffer:insert(item, ...)
-	if not item then return end
-	-- insert rest before self so order is restored, e.g.:
-	-- {1,<2>,3}:insert(4,5) -> {1,<2>,3}:insert(5) -> {1,<2>,5,3} -> {1,<2>,4,5,3} 
-	self:insert(...)
-	table.insert(self.items, self.current+1, item)
-end
-
-function ringbuffer:append(item, ...)
-	if not item then return end
-	self.items[#self.items+1] = item
-	return self:append(...)
-end
-
-function ringbuffer:removeAt(k)
-	-- wrap position
-	local pos = (self.current + k) % #self.items
-	while pos < 1 do pos = pos + #self.items end
-
-	-- remove item
-	local item = table.remove(self.items, pos)
-
-	-- possibly adjust current pointer
-	if pos < self.current then self.current = self.current - 1 end
-	if self.current > #self.items then self.current = 1 end
-
-	-- return item
-	return item
-end
-
-function ringbuffer:remove()
-	return table.remove(self.items, self.current)
-end
-
-function ringbuffer:get()
-	return self.items[self.current]
-end
-
-function ringbuffer:size()
-	return #self.items
-end
-
-function ringbuffer:next()
-	self.current = (self.current % #self.items) + 1
-	return self:get()
-end
-
-function ringbuffer:prev()
-	self.current = self.current - 1
-	if self.current < 1 then
-		self.current = #self.items
-	end
-	return self:get()
-end
-
--- the module
-return setmetatable({new = new},
-	{__call = function(_, ...) return new(...) end})