Function format_user_or_group

src/ls.c:4158–4174

   print width of WIDTH columns.  */

static void
format_user_or_group (char const *name, uintmax_t id, int width)
{
  if (name)
    {
      int name_width = mbswidth (name, MBSWIDTH_FLAGS);
      int width_gap = name_width < 0 ? 0 : width - name_width;
      int pad = MAX (0, width_gap);
      dired_outstring (name);

      do
        dired_outbyte (' ');
      while (pad--);
    }
  else
    dired_pos += printf ("%*ju ", width, id);
}

/* Print the name or id of the user with id U, using a print width of
   WIDTH.  */