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Added in the ability to iterate through cursors backwards.

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This commit is contained in:
Adam Harrison
2021-06-18 17:33:55 -04:00
parent dfc57bd884
commit b5cbe3a2fb
2 changed files with 7 additions and 7 deletions
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data/core/doc/init.lua
+5 -5
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@@ -172,17 +172,17 @@ function Doc:merge_cursors(idx)
end
local function selection_iterator(invariant, idx)
local target = invariant[3] and (#invariant[1] - 3 - idx * 4) or (idx*4 + 1)
if idx * 4 >= #invariant[1] then return end
local target = invariant[3] and (idx*4 - 7) or (idx*4 + 1)
if target > #invariant[1] or target <= 0 then return end
if invariant[2] then
return idx+1, sort_positions(unpack(invariant[1], target, target+4))
return idx+(invariant[3] and -1 or 1), sort_positions(unpack(invariant[1], target, target+4))
else
return idx+1, unpack(invariant[1], target, target+4)
return idx+(invariant[3] and -1 or 1), unpack(invariant[1], target, target+4)
end
end
function Doc:get_selections(sort_intra, reverse)
return selection_iterator, { self.selections, sort_intra, reverse }, 0
return selection_iterator, { self.selections, sort_intra, reverse }, reverse and (#self.selections / 4) + 1 or 0
end
-- End of cursor seciton.