number_pos = strchr (x->chart_file_name, '#') - x->chart_file_name;
ch->file_name = xasprintf ("%.*s%d%s",
number_pos, x->chart_file_name,
number_pos = strchr (x->chart_file_name, '#') - x->chart_file_name;
ch->file_name = xasprintf ("%.*s%d%s",
number_pos, x->chart_file_name,