refactor(misc1): move way beep functions elsewhere

src/nvim/ui.c

@@ -300,6 +300,44 @@ void ui_busy_stop(void)
   }
 }
 
+/// Emit a bell or visualbell as a warning
+///
+/// val is one of the BO_ values, e.g., BO_OPER
+void vim_beep(unsigned val)
+{
+  called_vim_beep = true;
+
+  if (emsg_silent == 0) {
+    if (!((bo_flags & val) || (bo_flags & BO_ALL))) {
+      static int beeps = 0;
+      static uint64_t start_time = 0;
+
+      // Only beep up to three times per half a second,
+      // otherwise a sequence of beeps would freeze Vim.
+      if (start_time == 0 || os_hrtime() - start_time > 500000000u) {
+        beeps = 0;
+        start_time = os_hrtime();
+      }
+      beeps++;
+      if (beeps <= 3) {
+        if (p_vb) {
+          ui_call_visual_bell();
+        } else {
+          ui_call_bell();
+        }
+      }
+    }
+
+    // When 'debug' contains "beep" produce a message.  If we are sourcing
+    // a script or executing a function give the user a hint where the beep
+    // comes from.
+    if (vim_strchr(p_debug, 'e') != NULL) {
+      msg_source(HL_ATTR(HLF_W));
+      msg_attr(_("Beep!"), HL_ATTR(HLF_W));
+    }
+  }
+}
+
 void ui_attach_impl(UI *ui, uint64_t chanid)
 {
   if (ui_count == MAX_UI_COUNT) {