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Be more strict about what names and titles we allow and reject them

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immediately when possible, but allow # again for those directly set by
commands (but not escape sequences). From Barrett Ruth in GitHub issue
5175.
This commit is contained in:
nicm
2026-06-15 21:41:39 +00:00
parent b86bd1fcd0
commit eb65331403
17 changed files with 144 additions and 81 deletions
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14
cmd-rename-window.c
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@@ -48,15 +48,21 @@ cmd_rename_window_exec(struct cmd *self, struct cmdq_item *item)
struct args *args = cmd_get_args(self);
struct cmd_find_state *target = cmdq_get_target(item);
struct winlink *wl = target->wl;
char *newname;
char *name;
newname = format_single_from_target(item, args_string(args, 0));
window_set_name(wl->window, newname);
name = format_single_from_target(item, args_string(args, 0));
if (!check_name(name, WINDOW_NAME_FORBID)) {
cmdq_error(item, "invalid window name: %s", name);
free(name);
return (CMD_RETURN_ERROR);
}
window_set_name(wl->window, name, WINDOW_NAME_FORBID);
options_set_number(wl->window->options, "automatic-rename", 0);
free(name);
server_redraw_window_borders(wl->window);
server_status_window(wl->window);
free(newname);
return (CMD_RETURN_NORMAL);
}