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Fix UpN if proposedY < 0

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Fixes #804
This commit is contained in:
Zachary Yedidia
2017-09-07 16:44:05 -04:00
parent ab242c5b17
commit 1a575bc9ae
1 changed files with 3 additions and 3 deletions
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6
cmd/micro/cursor.go
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@@ -249,8 +249,8 @@ func (c *Cursor) RuneUnder(x int) rune {
func (c *Cursor) UpN(amount int) {
proposedY := c.Y - amount
if proposedY < 0 {
c.X = 0 // first line: X moved before the first character
return
proposedY = 0
c.LastVisualX = 0
} else if proposedY >= c.buf.NumLines {
proposedY = c.buf.NumLines - 1
}
@@ -258,7 +258,7 @@ func (c *Cursor) UpN(amount int) {
runes := []rune(c.buf.Line(c.Y))
c.X = c.GetCharPosInLine(proposedY, c.LastVisualX)
if c.X > len(runes) || proposedY == c.Y {
if c.X > len(runes) {
c.X = len(runes)
}