Add a bit of "padding" to relocate

[micro.git] / cmd / micro / buffer.go

diff --git a/cmd/micro/buffer.go b/cmd/micro/buffer.go
index 238e1887cdfcc2f91a73ca1b51224ef77553861e..da5e6757bbed9bd4230736d8a24b649e8cd40973 100644 (file)
--- a/cmd/micro/buffer.go
+++ b/cmd/micro/buffer.go
@@ -101,6 +101,9 @@ func (b *Buffer) Remove(start, end int) string {
        if end > b.Len() {
                end = b.Len()
        }
+       if start == end {
+               return ""
+       }
        removed := b.Substr(start, end)
        // The rope implenentation I am using wants indicies starting at 1 instead of 0
        start++
@@ -110,6 +113,7 @@ func (b *Buffer) Remove(start, end int) string {
        return removed
 }
 
+// Substr returns the substring of the rope from start to end
 func (b *Buffer) Substr(start, end int) string {
        return b.r.Substr(start+1, end-start).String()
 }