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68 lines
1.4 KiB
68 lines
1.4 KiB
3 years ago
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local function sortpairs(t)
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local sort = {}
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for k, v in pairs(t) do
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sort[#sort+1] = {k, v}
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end
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table.sort(sort, function (a, b)
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return a[1] < b[1]
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end)
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local n = 1
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return function()
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local v = sort[n]
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if not v then
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return
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end
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n = n + 1
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return v[1], v[2]
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end
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end
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local function format_value(value)
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local tp = type(value)
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if tp == 'boolean' then
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return tostring(value)
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end
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if tp == 'number' then
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return tostring(value)
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end
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if tp == 'string' then
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return ('%q'):format(value)
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end
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end
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local function maxindex(t)
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local i = 0
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for k in pairs(t) do
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i = math.max(i, k)
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end
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return i
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end
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local function write_data(f, k, v)
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if k:find '[^%w_]' then
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k = ('%q'):format(k)
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end
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if type(v) == 'table' then
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local l = {}
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for i = 1, maxindex(v) do
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l[i] = format_value(v[i]) or 'nil'
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end
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f[#f+1] = ('%s={%s}'):format(k, table.concat(l, ','))
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else
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f[#f+1] = ('%s=%s'):format(k, format_value(v))
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end
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end
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return function (t)
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local f = {}
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for i, o in sortpairs(t) do
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f[#f+1] = ('[%s]'):format(i)
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for k, v in sortpairs(o) do
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write_data(f, k, v)
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end
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f[#f+1] = ''
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end
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return table.concat(f, '\r\n')
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end
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