delete line behaviour is fixed

gui/delete_line.go

@@ -3,22 +3,23 @@ package gui
 import rope "github.com/felixangell/go-rope"
 
 func DeleteLine(b *Buffer) bool {
-	if b.curs.y == 0 {
+	var prevLineLen = 0
+	if len(b.contents) > 1 {
+		prevLineLen = b.contents[b.curs.y].Len()
+		b.contents = remove(b.contents, b.curs.y)
+	} else {
+		// we are on the first line
+		// and there is nothing else to delete
+		// so we just clear the line
 		b.contents[b.curs.y] = new(rope.Rope)
 		b.moveToEndOfLine()
-		return false
+		return true
 	}
 
 	if b.curs.y >= len(b.contents) {
-		return false
-	}
-
-	prevLineLen := b.contents[b.curs.y].Len()
-	b.contents = remove(b.contents, b.curs.y)
-
-	if b.curs.y >= len(b.contents) {
-		b.moveUp()
-		b.moveToEndOfLine()
+		if b.curs.y > 0 {
+			b.moveUp()
+		}
 		return false
 	}