wip

acedoc.go

@@ -74,7 +74,7 @@ func (d Delta) rows() uint {
 }
 
 func (d Delta) cols() uint {
-	r := d.End.Column - d.Start.Column
+	r := d.End.Column
 	return r
 }
 

delta.go

@@ -217,8 +217,8 @@ func (d *Document) validate(dl Delta) error {
 
 	lastDlLine := dl.line(dl.nRows() - 1)
 
-	if uint(len(lastDlLine)) != dl.End.Column {
+	if uint(len(lastDlLine)) != dl.cols() {
-		return fmt.Errorf("delta has %d chars on the final line, but positions show range of %d chars", len(lastDlLine), dl.End.Column)
+		return fmt.Errorf("delta has %d chars on the final line, but positions show range of %d chars", len(lastDlLine), dl.cols())
 	}
 
 	return nil