Module:LuaCall: Difference between revisions
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Removing false comment and more commented out code |
Removing unused local functions |
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--[[ |
--[[ |
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------------------------------------------------------------------------------------ |
------------------------------------------------------------------------------------ |
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| ⚫ | |||
-- ipairsAt |
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-- |
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-- This is an iterator for arrays. It can be used like ipairs, but with |
-- This is an iterator for arrays. It can be used like ipairs, but with |
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-- specified i as first index to iterate. |
-- specified i as first index to iterate. i is an offset from 1 |
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-- |
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-- for i,v in p.ipairsAt(t, 3) do body end |
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-- |
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-- will iterate over the pairs (3,t[3]),(4,t[4]),..., up to the first |
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-- integer key absent from the table. |
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-- |
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-- Note: The following is an example to do range iteration from 3 to j |
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-- |
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-- for i,v in p.ipairsAt(t, 3) do if i>j then break end; body end |
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-- |
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------------------------------------------------------------------------------------ |
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--]] |
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local function ipairsAt(t, i) |
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--return ipairsAtOffset(t, i-1) |
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-- This may be less overhead than return ipairsAtOffset() above |
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local f, s, i0 = ipairs(t) |
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return f, s, i0+i-1 |
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end |
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--[[ |
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------------------------------------------------------------------------------------ |
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| ⚫ | |||
-- |
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-- Like ipairsAt(), except that it treat argument i as offset from 1 |
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-- |
-- |
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------------------------------------------------------------------------------------ |
------------------------------------------------------------------------------------ |
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return f, s, i0+i |
return f, s, i0+i |
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end |
end |
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local function iIteratorsAtOffset(t, i) |
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local f, s, i0 = ipairs(t) |
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return function (s, i) |
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local i, v = f(s, i); return v |
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end, s, i0+i |
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end |
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-- like ipairs() except that it return only value, rather than key/value pair |
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-- on each iteration |
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local function iIterators(t) return iIteratorsAtOffset(t, 0) end |
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local function get(s) |
local function get(s) |
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