Function digest_break_file

src/ptx.c:623–654

`----------------------------------------------------------------------*/

static void
digest_break_file (char const *file_name)
{
  BLOCK file_contents;		/* to receive a copy of the file */

  swallow_file_in_memory (file_name, &file_contents);

  /* Make the fastmap and record the file contents in it.  */

  memset (word_fastmap, 1, CHAR_SET_SIZE);
  for (char *cursor = file_contents.start; cursor < file_contents.end;
       cursor++)
    word_fastmap[to_uchar (*cursor)] = 0;

  if (!gnu_extensions)
    {

      /* If GNU extensions are enabled, the only way to avoid newline as
         a break character is to write all the break characters in the
         file with no newline at all, not even at the end of the file.
         If disabled, spaces, tabs and newlines are always considered as
         break characters even if not included in the break file.  */

      word_fastmap[' '] = 0;
      word_fastmap['\t'] = 0;
      word_fastmap['\n'] = 0;
    }

  /* Return the space of the file, which is no more required.  */

  free (file_contents.start);
}

/*-----------------------------------------------------------------------.
| Read a file named FILE_NAME, containing one word per line, then	 |