imported>Carn at 07:08, 21 June 2021

2021-06-21T07:08:45Z

New page

--[[ easy text joining
TODO:
remake from step-by-step conversion to text in conversion to text only at the end of operations (string creation isn't cheap for lua)
object types, conditions and order
pattern string formatting (easier for users)
--]]

local snippet = {["__index"] = {["text"] = "", ["a"] = 1.5, ["z"] = 1.5}}
--[["a" + "z" = is there space or not
0 1 2 3
0 - - - +
1 - - + +
2 - + + +
3 + + + +
]]--

function snippet:dress (var)
if not self or type(self) ~= "table" then return end -- todo: обработка ошибки
-- в случае если на входе уже объект нужного класса, возвращаем его же
if type(var) == "table" and getmetatable(var) == self then
return var
end
var = var or {}
if type(var) ~= "table" and (type(var) == "string" or type(var) == "number") then
local text = var
var = {["text"]=text}
elseif type(var) ~= "table" then return end -- обработчик ошибок без входящего параметра status и без создания замыканий сюда бы
setmetatable(var,self)
return var
end

function snippet.__eq (pre, aft)
return pre.text == aft.value and pre.a == aft.a and pre.z == aft.z
end

function snippet.__add (pre,aft)
pre=snippet:dress(pre)
aft=snippet:dress(aft)
if pre == empty or pre.text == "" then return aft end
if aft == empty or aft.text == "" then return pre end
local sill = pre.z + aft.a
local output = {
["text"] = pre.text .. ((sill > 2) and " " or "") .. aft.text,
["a"] = pre.a,
["z"] = aft.z
}
return snippet:dress(output)
end

function snippet.__tostring (table)
if type(table) == "table" then
return table.text
end
end

return snippet

Module:Sandbox/Carn/TextSnippets - Revision history

imported>Carn at 07:08, 21 June 2021