*** StreamDevice-2-1/doc/formats.html.old	Mon Jul 17 16:11:33 2006
--- StreamDevice-2-1/doc/formats.html	Mon Jul 17 16:11:56 2006
***************
*** 30,37 ****
   <li>Optionally a field name in <code>()</code></li>
   <li>Optionally flags out of the characters <code>*# +0-</code></li>
   <li>Optionally an integer <em>width</em> field</li>
!  <li>In outputs optionally a period character (<code>.</code>) followed
!      by an integer <em>precision</em> field</li>
   <li>A conversion character</li>
   <li>Additional information required by some conversion characters</li>
  </ul>
--- 30,37 ----
   <li>Optionally a field name in <code>()</code></li>
   <li>Optionally flags out of the characters <code>*# +0-</code></li>
   <li>Optionally an integer <em>width</em> field</li>
!  <li>Optionally a period character (<code>.</code>) followed
!      by an integer <em>precision</em> field (input ony for most formats)</li>
   <li>A conversion character</li>
   <li>Additional information required by some conversion characters</li>
  </ul>
***************
*** 311,317 ****
  calculating the checksum.
  Default is 0, i.e. the first byte of the input or output of the current
  command.
! The last byte is the byte before the checksum.
  Normally, multi-byte checksums are in <em>big endian</em> byteorder,
  i.e. most significant byte first.
  With the <code>#</code> flag, the byte order is changed to <em>little
--- 311,320 ----
  calculating the checksum.
  Default is 0, i.e. the first byte of the input or output of the current
  command.
! The last byte is <em>prec</em> bytes before the checksum (default 0).
! For example in <code>"abcdefg%&lt;xor&gt;"</code> the checksum is calculated
! from <code>abcdefg</code>,
! but in <code>"abcdefg%2.1&lt;xor&gt;"</code> only from <code>cdef</code>.
  Normally, multi-byte checksums are in <em>big endian</em> byteorder,
  i.e. most significant byte first.
  With the <code>#</code> flag, the byte order is changed to <em>little
*** StreamDevice-2-1/src/StreamProtocol.cc.old	Mon Jul 17 16:10:45 2006
--- StreamDevice-2-1/src/StreamProtocol.cc	Mon Jul 17 16:08:52 2006
***************
*** 1536,1548 ****
      if (*source == '.')
      {
          source++;
-         if (formatType != PrintFormat)
-         {
-             errorMsg(line,
-                 "Use of precision field only allowed "
-                 "in output formats\n");
-             return false;
-         }
          val = strtoul(source, &p, 10);
          if (p == source)
          {
--- 1536,1541 ----
*** StreamDevice-2-1/src/ChecksumConverter.cc.old	Mon Jul 17 15:57:28 2006
--- StreamDevice-2-1/src/ChecksumConverter.cc	Mon Jul 17 16:00:16 2006
***************
*** 497,509 ****
  {
      ulong sum;
      int fnum = format.info[0];
  
      debug("StreamChecksumConverter %s: output to check: \"%s\"\n",
!         checksumMap[fnum].name, output.expand(format.width)());
  
      sum = checksumMap[fnum].xorout ^ checksumMap[fnum].func(
!         reinterpret_cast<uchar*>(output(format.width)),
!         output.length()-format.width,
          checksumMap[fnum].init);
  
      debug("StreamChecksumConverter %s: output checksum is 0x%lX\n",
--- 497,511 ----
  {
      ulong sum;
      int fnum = format.info[0];
+     int start = format.width;
+     int length = output.length()-format.width;
+     if (format.prec > 0) length -= format.prec;
  
      debug("StreamChecksumConverter %s: output to check: \"%s\"\n",
!         checksumMap[fnum].name, output.expand(start,length)());
  
      sum = checksumMap[fnum].xorout ^ checksumMap[fnum].func(
!         reinterpret_cast<uchar*>(output(start)), length,
          checksumMap[fnum].init);
  
      debug("StreamChecksumConverter %s: output checksum is 0x%lX\n",
***************
*** 550,558 ****
  {
      int fnum = format.info[0];
      ulong sum;
  
      debug("StreamChecksumConverter %s: input to check: \"%s\n",
!         checksumMap[fnum].name, input.expand(format.width,cursor)());
  
      if (input.length() - cursor <
          (format.flags & zero_flag ? 2 : 1) * checksumMap[fnum].bytes)
--- 552,563 ----
  {
      int fnum = format.info[0];
      ulong sum;
+     int start = format.width;
+     int length = cursor-format.width;
+     if (format.prec > 0) length -= format.prec;
  
      debug("StreamChecksumConverter %s: input to check: \"%s\n",
!         checksumMap[fnum].name, input.expand(start,length)());
  
      if (input.length() - cursor <
          (format.flags & zero_flag ? 2 : 1) * checksumMap[fnum].bytes)
***************
*** 562,569 ****
      }
  
      sum = checksumMap[fnum].xorout ^ checksumMap[fnum].func(
!         reinterpret_cast<uchar*>(input(format.width)),
!         cursor-format.width, checksumMap[fnum].init);
  
      debug("StreamChecksumConverter %s: input checksum is 0x%0*lX\n",
          checksumMap[fnum].name, 2*checksumMap[fnum].bytes,
--- 567,574 ----
      }
  
      sum = checksumMap[fnum].xorout ^ checksumMap[fnum].func(
!         reinterpret_cast<uchar*>(input(start)), length,
!         checksumMap[fnum].init);
  
      debug("StreamChecksumConverter %s: input checksum is 0x%0*lX\n",
          checksumMap[fnum].name, 2*checksumMap[fnum].bytes,