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Do a bounds check for charpos function

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This commit is contained in:
Zachary Yedidia 2016-05-24 09:15:01 -04:00
parent 55a6b6701d
commit f730864e9f
1 changed files with 3 additions and 0 deletions
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3
cmd/micro/cursor.go
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@ -18,6 +18,9 @@ func FromCharPosStart(startLoc, startX, startY, loc int, buf *Buffer) (int, int)
for charNum+lineLen <= loc {
charNum += lineLen
y++
if y >= buf.NumLines {
return 0, 0
}
lineLen = Count(buf.Lines[y]) + 1
}
x = loc - charNum