vterm_push_output_sprintf
vterm_push_output_sprintf(vt, "\r\n");
vterm_push_output_sprintf(vt, mod & VTERM_MOD_ALT ? "\e%c" : "%c", k.literal);
vterm_push_output_sprintf(vt, "%s%c", mod & VTERM_MOD_ALT ? "\e" : "", c);
vterm_push_output_sprintf(state->vt,
vterm_push_output_sprintf(state->vt, "m");
vterm_push_output_sprintf(vt, "\e%c", ctrl - 0x40);
vterm_push_output_sprintf(vt, "%c", ctrl);
vterm_push_output_sprintf(vt, "\e%c", C1_DCS - 0x40);
vterm_push_output_sprintf(vt, "%c", C1_DCS);
void vterm_push_output_sprintf(VTerm *vt, const char *format, ...);