utf8_cstrwidth
width = utf8_cstrwidth(key_string_lookup_key(l[i]->key, 0));
width = utf8_cstrwidth(l[i]->tablename);
width = utf8_cstrwidth(text);
offset += utf8_cstrwidth(c->prompt_string);
offset += utf8_cstrwidth(c->prompt_string);
n = utf8_cstrwidth(s);
n = utf8_cstrwidth(s);