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Handle same file open in multiple buffers

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This commit is contained in:
Zachary Yedidia
2019-01-14 00:18:49 -05:00
parent 7a20c2db76
commit 23926af9f7
10 changed files with 114 additions and 95 deletions
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15
cmd/micro/buffer/loc.go
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@@ -52,7 +52,7 @@ func (l Loc) LessEqual(b Loc) bool {
// The following functions require a buffer to know where newlines are
// Diff returns the distance between two locations
func Diff(a, b Loc, buf *Buffer) int {
func DiffLA(a, b Loc, buf *LineArray) int {
if a.Y == b.Y {
if a.X > b.X {
return a.X - b.X
@@ -75,7 +75,7 @@ func Diff(a, b Loc, buf *Buffer) int {
}
// This moves the location one character to the right
func (l Loc) right(buf *Buffer) Loc {
func (l Loc) right(buf *LineArray) Loc {
if l == buf.End() {
return Loc{l.X + 1, l.Y}
}
@@ -89,7 +89,7 @@ func (l Loc) right(buf *Buffer) Loc {
}
// This moves the given location one character to the left
func (l Loc) left(buf *Buffer) Loc {
func (l Loc) left(buf *LineArray) Loc {
if l == buf.Start() {
return Loc{l.X - 1, l.Y}
}
@@ -104,7 +104,7 @@ func (l Loc) left(buf *Buffer) Loc {
// Move moves the cursor n characters to the left or right
// It moves the cursor left if n is negative
func (l Loc) Move(n int, buf *Buffer) Loc {
func (l Loc) MoveLA(n int, buf *LineArray) Loc {
if n > 0 {
for i := 0; i < n; i++ {
l = l.right(buf)
@@ -116,3 +116,10 @@ func (l Loc) Move(n int, buf *Buffer) Loc {
}
return l
}
func (l Loc) Diff(a, b Loc, buf *Buffer) int {
return DiffLA(a, b, buf.LineArray)
}
func (l Loc) Move(n int, buf *Buffer) Loc {
return l.MoveLA(n, buf.LineArray)
}