urxvt256c-keysym-list (1) - Linux Manuals
urxvt256c-keysym-list: implement the "list" keysym expansion.
keysym-list - implement the "list" keysym expansion.
urxvt -pe keysym-list
DESCRIPTIONThe ``list'' keysym expansion was formerly part of the rxvt-unicode core, and has been moved into this extension for backwards compatibility. You shouldn't use this extension except for compatibility with old configurations.