26 lines
437 B
Lua
26 lines
437 B
Lua
function split(text, sep)
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local parts = {}
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local start = 0
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local from, to = text:find(sep)
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while from ~= nil do
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table.insert(parts, text:sub(start, from - 1))
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text = text:sub(to + 1)
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from, to = text:find(sep)
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end
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table.insert(parts, text)
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return parts
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end
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function sign(n)
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if n == 0 then return 0
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elseif n < 0 then return -1
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else return 1
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end
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end
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function foreach(t, f)
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for k, v in pairs(t) do
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t[k] = f(v)
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end
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end
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