forked from mtcontrib/pdisc
107 lines
2.2 KiB
Lua
107 lines
2.2 KiB
Lua
local function befehl_ausfuhren(faden)
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local is = faden.is
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local imms = faden.imms
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local vars = faden.vars
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local anw = faden.liste[faden.ip]
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if not anw then
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return false, "Invalid instruction pointer"
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end
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local befehl, args = unpack(anw)
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for i = 1,#is do
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local bfunk = is[i][befehl]
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if bfunk then
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local fa = {}
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local ersetzbar = {}
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if args then
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for i = 1,#args do
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local arg = args[i]
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if type(arg) == "number" then
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fa[i] = imms[arg]
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else
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fa[i] = vars[arg]
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ersetzbar[i] = true
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end
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end
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end
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local weiter, ergebnis = bfunk(fa, faden)
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if not weiter then
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return false, "Command " .. befehl .. ": " .. ergebnis
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end
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if args
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and ergebnis ~= nil then
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if type(ergebnis) ~= "table" then
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ergebnis = {ergebnis}
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end
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for i,v in pairs(ergebnis) do
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if args[i]
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and ersetzbar[i] then
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vars[args[i]] = v
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end
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end
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end
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faden.ip = faden.ip + 1
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if faden.ip > #faden.liste then
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return false, "Done"
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end
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return true
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end
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end
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return false, 'Unknown command "' .. befehl .. '"'
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end
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local function programm_ausfuhren(faden)
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local weiter,msg = befehl_ausfuhren(faden)
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if not weiter then
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faden.log = faden.log .. "Aborted (" .. faden.ip .. "): " .. msg .. "\n"
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faden:exit()
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return
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end
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return not faden.stopped and programm_ausfuhren(faden)
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end
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return function(faden_manip, parsed)
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local faden = {
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log = "",
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vars = {pi = math.pi},
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ip = 1,
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sp = 3500,
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sb = 3500,
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strlen_max = 2000,
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stack = {},
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is = {pdisc.standard_befehlssatz},
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suscitate = programm_ausfuhren,
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flush = function(self)
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print(self.log)
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self.log = ""
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return true
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end,
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stop = function(self)
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self.stopped = true
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end,
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continue = function(self)
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self.stopped = false
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self:suscitate()
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end,
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try_rebirth = function(self)
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if minetest.get_us_time() >= self.rebirth then
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self:continue()
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end
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end,
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exit = function(self)
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self:flush()
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end,
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}
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if parsed then
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faden.imms = parsed[1]
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faden.liste = parsed[2]
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if not faden.liste[1] then
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faden.suscitate = function(self)
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self.log = self.log .. "Nothing to execute.\n"
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self:exit()
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end
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end
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end
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faden_manip(faden)
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return faden
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end
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