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Fixed index out of bounds in term.isWide, closes #484.

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This commit is contained in:
Florian Nücke 2014-08-12 02:51:17 +02:00
parent df9438db8e
commit a2e2a9b72e
1 changed files with 7 additions and 0 deletions
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7
src/main/resources/assets/opencomputers/loot/OpenOS/lib/term.lua
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@ -81,6 +81,13 @@ function term.setCursorBlink(enabled)
end end
function term.isWide(x, y) function term.isWide(x, y)
if not term.isAvailable() then
return false
end
local w, h = component.gpu.getResolution()
if x < 1 or x > w or y < 1 or y > h then
return false
end
local char = component.gpu.get(x, y) local char = component.gpu.get(x, y)
if unicode.isWide(char) then if unicode.isWide(char) then
-- The char at the specified position is a wide char. -- The char at the specified position is a wide char.