Squash commits for public release

userland/utilities/edit/menu.c

@@ -0,0 +1,49 @@
+#include "menu.h"
+#include "file.h"
+#include "lifetime.h"
+#include <stdlib.h>
+#include <unistd.h>
+
+char cmd[SCREEN_X];
+int pos = 0;
+
+void menu_run_cmd(char* str, int len)
+{
+    if (str[0] == 'q' && len == 1) {
+        exit_app();
+    }
+    if (str[0] == 'w' && len == 1) {
+        file_save();
+    }
+    if (str[0] == 'w' && str[1] == 'q' && len == 2) {
+        file_save();
+        exit_app();
+    }
+}
+
+void menu_enter_mode()
+{
+    mode = MENU;
+    mode_disc.enter_mode = menu_enter_mode;
+    mode_disc.leave_mode = menu_leave_mode;
+    mode_disc.accept_key = menu_accept_key;
+    viewer_enter_menu_mode();
+    write(STDOUT, ": ", 2);
+
+    pos = 0;
+}
+
+void menu_leave_mode()
+{
+}
+
+void menu_accept_key(char key)
+{
+    if (key == '\n') {
+        menu_run_cmd(cmd, pos);
+        pos = 0;
+        return;
+    }
+    cmd[pos++] = key;
+    write(STDOUT, &key, 1);
+}