Function add_line_number

src/pr.c:2035–2077

}

static void
add_line_number (COLUMN *p)
{
  int i;
  char *s;
  int num_width;

  /* Cutting off the higher-order digits is more informative than
     lower-order cut off. */
  num_width = sprintf (number_buff, "%*d", chars_per_number, line_number);
  line_number++;
  s = number_buff + (num_width - chars_per_number);
  for (i = chars_per_number; i > 0; i--)
    (p->char_func) (*s++);

  if (columns > 1)
    {
      /* Tabification is assumed for multiple columns, also for n-separators,
         but 'default n-separator = TAB' hasn't been given priority over
         equal column_width also specified by POSIX. */
      if (number_separator == '\t')
        {
          i = number_width - chars_per_number;
          while (i-- > 0)
            (p->char_func) (' ');
        }
      else
        (p->char_func) (number_separator);
    }
  else
    /* To comply with POSIX, we avoid any expansion of default TAB
       separator with a single column output. No column_width requirement
       has to be considered. */
    {
      (p->char_func) (number_separator);
      if (number_separator == '\t')
        output_position = POS_AFTER_TAB (chars_per_output_tab,
                          output_position);
    }

  if (truncate_lines && !parallel_files)
    input_position += number_width;
}

/* Print (or store) padding until the current horizontal position
   is position. */