16 lines
321 B
Lua
16 lines
321 B
Lua
local function chainpair(f1, f2)
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return function(chunk)
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local ret = f2(f1(chunk))
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if chunk then return ret
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else return (ret or "") .. (f2() or "") end
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end
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end
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function filter.chain(...)
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local f = select(1, ...)
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for i = 2, select('#', ...) do
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f = chainpair(f, select(i, ...))
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end
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return f
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end
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