vi: add 'ZQ' quitting command

Busybox vi provides the 'ZZ' command to save and close
the similar 'ZQ' command just exits without saving.

function                                             old     new   delta
do_cmd                                              4222    4244     +22

Signed-off-by: Grob Grobmann <grobgrobmann@gmail.com>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/editors/vi.c b/editors/vi.c
index d799a8170..1f997e8e5 100644
--- a/editors/vi.c
+++ b/editors/vi.c
@@ -4324,8 +4324,14 @@ static void do_cmd(int c)
                         goto dc_i;      // start inserting
                 break;
         case 'Z':                       // Z- if modified, {write}; exit
-                // ZZ means to save file (if necessary), then exit
                 c1 = get_one_char();
+                // ZQ means to exit without saving
+                if (c1 == 'Q') {
+                        editing=0;
+                        optind = cmdline_filecnt;
+                        break;
+                }
+                // ZZ means to save file (if necessary), then exit
                 if (c1 != 'Z') {
                         indicate_error();
                         break;