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https://github.com/joe7575/techpack.git
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data structures improvements
This commit is contained in:
Joachim Stolberg
parent
b6325f9078
commit
44c5285f28
@ -27,7 +27,7 @@ safer_lua.DataStructHelp = [[
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a.insert(5,7) --> {1,8,3,4,7,6}
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a.remove(3) --> {1,8,4,7,6}
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a.insert(1, "hello") --> {"hello",1,8,4,7,6}
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a.size() --> function returns 10
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a.size() --> function returns 6
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Unlike arrays, which are indexed by a range of numbers,
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'stores' are indexed by keys:
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@ -37,7 +37,7 @@ safer_lua.DataStructHelp = [[
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s.get("val") --> returns 12
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s.set(0, "hello") --> {val = 12, [0] = "hello"}
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s.del("val") --> {[0] = "hello"}
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s.size() --> function returns 6
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s.size() --> function returns 1
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A 'set' is an unordered collection with no duplicate
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elements.
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@ -48,7 +48,7 @@ safer_lua.DataStructHelp = [[
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s.add("Susi") --> {Lucy = true, Susi = true}
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s.has("Susi") --> function returns `true`
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s.has("Mike") --> function returns `false`
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s.size() --> function returns 11
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s.size() --> function returns 2
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]]
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local function var_count(v)
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@ -61,7 +61,7 @@ local function var_count(v)
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elseif type(v) == "string" then
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return #v
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elseif type(v) == "table" then
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return v.size()
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return v.memsize()
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else
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return nil
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end
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@ -70,11 +70,12 @@ end
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function safer_lua.Store()
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local new_t = {__data__ = {}}
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local new_t = {}
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local mt = {}
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-- `all` will represent the number of both
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local Count = 0
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local MemSize = 0
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local Size = 0
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local Data = {}
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mt.__newindex = function(t, k, v) return end
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@ -82,39 +83,55 @@ function safer_lua.Store()
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new_t.set = function(k,v)
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if type(k) == "number" then
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Count = Count - mt.count(rawget(new_t.__data__, k))
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Count = Count + mt.count(v)
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rawset(new_t.__data__,k,v)
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elseif type(k) == "string" then
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if rawget(new_t.__data__, k) then -- has entry?
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Count = Count - mt.count(rawget(new_t.__data__, k))
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if rawget(Data, k) then -- has entry?
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MemSize = MemSize - mt.count(rawget(Data, k))
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else
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Count = Count + mt.count(k)
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Size = Size + 1
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end
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Count = Count + mt.count(v)
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rawset(new_t.__data__,k,v)
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MemSize = MemSize + mt.count(v)
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rawset(Data, k, v)
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elseif type(k) == "string" then
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if rawget(Data, k) then -- has entry?
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MemSize = MemSize - mt.count(rawget(Data, k))
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else
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MemSize = MemSize + mt.count(k)
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Size = Size + 1
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end
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MemSize = MemSize + mt.count(v)
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rawset(Data, k, v)
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end
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end
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new_t.get = function(k)
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return rawget(new_t.__data__, k)
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return rawget(Data, k)
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end
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new_t.del = function(k)
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Count = Count - mt.count(k)
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Count = Count - mt.count(rawget(new_t.__data__, k))
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rawset(new_t.__data__,k,nil)
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if rawget(Data, k) then -- has entry?
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MemSize = MemSize - mt.count(k)
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MemSize = MemSize - mt.count(rawget(Data, k))
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rawset(Data, k, nil)
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Size = Size - 1
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end
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end
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new_t.memsize = function(t)
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return MemSize
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end
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new_t.size = function(t)
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return Count
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return Size
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end
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new_t.dump = function(size)
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size = size or 200
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local s = dump(new_t.__data__)
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if #s > size then s = s:sub(1, size).."..." end
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return s
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new_t.__dump = function()
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-- remove the not serializable meta data
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return {Type = "Store", Size = Size, MemSize = MemSize, Data = Data}
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end
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new_t.__load = function(size, memsize, data)
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Size = size
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MemSize = memsize
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Data = data
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end
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return setmetatable(new_t, mt)
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@ -123,11 +140,11 @@ end
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function safer_lua.Array(...)
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local new_t = {__data__ = {}}
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local new_t = {}
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local mt = {}
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-- `all` will represent the number of both
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local Count = 0
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local MemSize = 0
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local Data = {}
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mt.__newindex = function(t, k, v) return end
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@ -137,45 +154,56 @@ function safer_lua.Array(...)
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local v = select(idx,...)
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local cnt = mt.count(v)
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if cnt then
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Count = Count + cnt
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rawset(new_t.__data__,idx, v)
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MemSize = MemSize + cnt
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rawset(Data, idx, v)
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end
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end
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new_t.add = function(v)
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Count = Count + mt.count(v)
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local i = #new_t.__data__ + 1
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table.insert(new_t.__data__,i,v)
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MemSize = MemSize + mt.count(v)
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local i = #Data + 1
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table.insert(Data, i, v)
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end
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new_t.set = function(i,v)
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i = math.min(#new_t.__data__, i)
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Count = Count - mt.count(rawget(new_t.__data__, i))
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Count = Count + mt.count(v)
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rawset(new_t.__data__,i,v)
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i = math.min(#Data, i)
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MemSize = MemSize - mt.count(rawget(Data, i))
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MemSize = MemSize + mt.count(v)
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rawset(Data, i, v)
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end
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new_t.get = function(i)
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return Data[i]
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end
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new_t.insert = function(i, v)
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Count = Count + mt.count(v)
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i = math.min(#new_t.__data__, i)
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table.insert(new_t.__data__,i,v)
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MemSize = MemSize + mt.count(v)
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i = math.min(#Data, i)
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table.insert(Data, i, v)
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end
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new_t.remove = function(i)
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local v = table.remove(new_t.__data__,i)
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Count = Count - mt.count(v)
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local v = table.remove(Data, i)
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MemSize = MemSize - mt.count(v)
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return v
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end
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new_t.size = function(t)
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return Count
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new_t.memsize = function(t)
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return MemSize
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end
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new_t.dump = function(size)
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size = size or 200
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local s = dump(new_t.__data__)
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if #s > size then s = s:sub(1, size).."..." end
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return s
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new_t.size = function(t)
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return #Data
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end
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new_t.__dump = function()
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-- remove the not serializable meta data
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return {Type = "Array", MemSize = MemSize, Data = Data}
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end
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new_t.__load = function(memsize, data)
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MemSize = memsize
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Data = data
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end
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return setmetatable(new_t, mt)
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@ -184,11 +212,12 @@ end
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function safer_lua.Set(...)
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local new_t = {__data__ = {}}
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local new_t = {}
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local mt = {}
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-- `all` will represent the number of both
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local Count = 0
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local MemSize = 0
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local Size = 0
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local Data = {}
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mt.__newindex = function(t, k, v) return end
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@ -198,35 +227,69 @@ function safer_lua.Set(...)
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local v = select(idx,...)
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local cnt = mt.count(v)
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if cnt then
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Count = Count + cnt
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rawset(new_t.__data__,v, true)
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MemSize = MemSize + cnt
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Size = Size + 1
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rawset(Data, v, true)
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end
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end
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new_t.add = function(k)
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Count = Count + mt.count(k)
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rawset(new_t.__data__,k, true)
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MemSize = MemSize + mt.count(k)
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rawset(Data, k, true)
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Size = Size + 1
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end
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new_t.del = function(k)
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Count = Count - mt.count(k)
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rawset(new_t.__data__,k, nil)
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MemSize = MemSize - mt.count(k)
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rawset(Data, k, nil)
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Size = Size - 1
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end
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new_t.has = function(k)
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return rawget(new_t.__data__, k) == true
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return rawget(Data, k) == true
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end
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new_t.memsize = function(t)
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return MemSize
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end
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new_t.size = function(t)
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return Count
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return Size
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end
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new_t.dump = function(size)
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size = size or 200
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local s = dump(new_t.__data__)
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if #s > size then s = s:sub(1, size).."..." end
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return s
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new_t.__dump = function()
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-- remove the not serializable meta data
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return {Type = "Set", Size = Size, MemSize = MemSize, Data = Data}
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end
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new_t.__load = function(size, memsize, data)
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Size = size
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MemSize = memsize
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Data = data
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end
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return setmetatable(new_t, mt)
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end
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-- remove the not serializable meta data
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function safer_lua.datastruct_to_table(ds)
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return ds.__dump()
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end
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-- add the not serializable meta data again
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function safer_lua.table_to_datastruct(tbl)
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if tbl.Type == "Store" then
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local s = safer_lua.Store()
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s.__load(tbl.Size, tbl.MemSize, tbl.Data)
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return s
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elseif tbl.Type == "Set" then
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local s = safer_lua.Set()
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s.__load(tbl.Size, tbl.MemSize, tbl.Data)
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return s
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elseif tbl.Type == "Array" then
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local a = safer_lua.Array()
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a.__load(tbl.MemSize, tbl.Data)
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return a
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end
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end
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@ -81,6 +81,8 @@ local InvalidKeywords = {
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["do"] = true,
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["function"] = true,
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["_G"] = true,
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["__load"] = true,
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["__dump"] = true,
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}
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local InvalidChars = {
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@ -105,21 +105,32 @@ local function calc_size(v)
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return 0
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elseif type(v) == "string" then
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return #v
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elseif v.MemSize then
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return v.MemSize
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else
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return nil
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end
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end
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local function write_value(mem, key, value)
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local function write_value(mem, key, item)
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if mem and mem.size < SERVER_CAPA then
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if value == nil then
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if mem.data[key] then
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mem.size = mem.size - calc_size(mem.data[key])
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else
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mem.size = mem.size - calc_size(mem.data[key])
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mem.size = mem.size + calc_size(value)
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end
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mem.data[key] = value
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if type(item) == "table" then
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item = safer_lua.datastruct_to_table(item)
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end
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mem.size = mem.size + calc_size(item)
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mem.data[key] = item
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end
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end
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local function read_value(mem, key)
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local item = mem.data[key]
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if type(item) == "table" then
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item = safer_lua.table_to_datastruct(item)
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end
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return item
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end
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tubelib.register_node("sl_controller:server", {}, {
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@ -129,7 +140,7 @@ tubelib.register_node("sl_controller:server", {}, {
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local number = meta:get_string("number")
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local mem = tubelib.get_data(number, "memory") or DEFAULT_MEM
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if topic == "read" then
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return mem.data[payload]
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return read_value(mem, payload)
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elseif topic == "write" then
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write_value(mem, payload.key, payload.value)
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tubelib.set_data(number, "memory", mem)
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@ -157,7 +168,7 @@ sl_controller.register_function("server_read", {
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sl_controller.register_action("server_write", {
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cmnd = function(self, num, key, value)
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if type(key) == "string" and type(value) == "string" or type(value) == "number" then
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if type(key) == "string" then
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tubelib.send_message(num, self.meta.owner, nil, "write", {key=key, value=value})
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else
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self.error("Invalid server_write parameter")
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@ -165,8 +176,8 @@ sl_controller.register_action("server_write", {
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end,
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help = " $server_write(num, key, value)\n"..
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" Store a value on the server under the key 'key'.\n"..
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" 'key' must be a string. 'value' can be\n"..
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" either a number or a string.\n"..
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" 'key' must be a string. 'value' can be either a\n"..
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" number, string, boolean, nil or data structure.\n"..
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' example: $server_write("0123", "state", state)'
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})
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