vi: save/restore screen upon invocation

function                                             old     new   delta
vi_main                                              253     273     +20

Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 4 insertions, 0 deletions

diff --git a/editors/vi.c b/editors/vi.c
index 459f374f7..e09e0d9c7 100644
--- a/editors/vi.c
+++ b/editors/vi.c
@@ -598,11 +598,15 @@ int vi_main(int argc, char **argv)
         //----- This is the main file handling loop --------------
         save_argc = argc;
         optind = 0;
+        // "Save cursor, use alternate screen buffer, clear screen"
+        write1("\033[?1049h");
         while (1) {
                 edit_file(argv[optind]); /* param might be NULL */
                 if (++optind >= argc)
                         break;
         }
+        // "Use normal screen buffer, restore cursor"
+        write1("\033[?1049l");
         //-----------------------------------------------------------
 
         return 0;