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  ChangeLog

  This file summarizes *all* types of changes to the Slice sources,
  i.e. changes between each patchlevel (1.x.y->1.x.(y+1) and
  1.x.y->1.(x+1).0). Take this logfile for concrete and detailed
  information about every single change.
  ___________________________________________________________________________

  Changes between 1.3.7 and 1.3.8:

    *) New -y flag (12-Jan-2002):
       This flag changes output policy, by defining which action is to be
       taken when unknown slice sets are requested, or when input is empty.
       Note that an undefined set used was previously considered as an error,
       and it is now silently ignored by default.
       [Denis Barbier]

    *) Change detection of Perl modules (12-Jan-2002):
       [Denis Barbier]

    *) Cosmetic changes (22-Jul-2001):
       Remove ampersands before function calls.
       [Denis Barbier]

    *) Upgrade to Autoconf 2.50 (22-Jul-2001):
       [Denis Barbier]

    *) Fix compilation of Bit::Vector with perl < 5.005 (20-Jun-2001):
       Apply the 2001-08-27 patch by Max H. Duenki.
       [Denis Barbier]

    *) Upgraded to Bit::Vector 6.0 (04-May-2001):
       [Denis Barbier]

  Changes between 1.3.6 and 1.3.7:

    *) Fix an infinite loop in slice 1.3.6  (27-Aug-2000):
       Previous patch about speed improvements made slice hang up with
       some files.  This patch has been entirely revisited.
       [Josip Rodin <joy@cibalia.gkvk.hr>]

    *) New `all except' operator (27-Aug-2000):
       The wildcard sign accepts a new syntax.  When followed by braces,
       it replaces ``all strings except the one enclosed within braces''.
       This construct could not be emulated with previous operators with
       nested slices.
       [Denis Barbier]

    *) Fix `%' operator (27-Aug-2000):
       This operator, which is a synonym for `n' i.e. intersection of
       slices, was only partially implemented
       [Denis Barbier]

    *) Fix compilation of Bit::Vector with perl < 5.005 (27-Aug-2000):
       [Max H. Duenki <duenki@isi.ee.ethz.ch>]

  Changes between 1.3.5 and 1.3.6:

    *) Improve processing speed on large files (29-Jul-2000):
       On very large files, this program was dramatically slow.
       A speed-up factor of 15 is obtained on a 300KB file containing
       16000 slices.
       [Denis Barbier]

    *) Fix compilation on threaded Perl 5.6.0 (29-Jul-2000):
       [Denis Barbier]

    *) Upgrade of Bit::Vector (28-Jul-2000):
       Upgraded Bit::Vector from version 5.7 to 5.8.
       [Ralf S. Engelschall]

    *) Upgraded to GNU shtool 1.5.0 (01-Jul-2000):
       Upgraded to GNU shtool 1.5.0. This involved especially a major
       adjustment because of the rewritten "shtool version" command.
       [Ralf S. Engelschall]

  Changes between 1.3.4 and 1.3.5:

    *) Fix compilation on FreeBSD  (27-Apr-2000):
       [Denis Barbier]

    *) Fix detection of Perl at configure time  (27-Apr-2000):
       Perl 5.6.0 uses a versioning scheme different than previous
       versions, which breaks our detection scheme.
       [Denis Barbier]

  Changes between 1.3.3 and 1.3.4:

    *) Use of the TMPDIR environment variable (28-Aug-1999):
       To conform with POSIX standard, this variable contains 
       the directory name where temporary files are kept. By default, 
       this directory is /tmp.
       [Thomas Roessler <roessler@guug.de>]

    *) Use GNU shtool for configuring (25-Aug-1999):
       All scripts in etc/ sub-directories were still replaced by
       Ralf's shtool since 01-Jul-1999. They are now removed.
       [Denis Barbier]

    *) Write empty file (23-Aug-1999):
       An empty output implies an empty file. Previous versions
       did not write empty files.
       [Denis Barbier]

    *) Fix installation of Perl modules (05-Jul-1999):
       On some platforms, Perl modules are not installed according
       to the prefix passed to the configure command-line.
       Rules in Makefiles now invoke pure_perl_install
       [Tobias Oetiker <oetiker@ee.ethz.ch>]

  Changes between 1.3.2 and 1.3.3:

    *) Upgrade Perl modules (21-May-1999):
       - Bit-Vector 5.6
       - IO 1.20
       - Getopt-Long 2.19
       [Denis Barbier <barbier@imacs.polytechnique.fr>]

    *) Fixed slice_term.y (10-May-1999):
       An undefined slice reports a warning instead of an error
       [Michael McNamara <mac@surefirev.com>]
  ___________________________________________________________________________

  Slice is now maintained by Denis Barbier <barbier@imacs.polytechnique.fr>
  I've now changed the syntax of the ChangeLog file for more readability
  ___________________________________________________________________________

  Changes between 1.3.1 and 1.3.2
      980218 - Upgraded to Bit-Vector 5.0b4
             - Upgraded to IO 1.19
             - Fixed copyright notice and FSF address

  Changes between 1.3.0 and 1.3.1
      980128 - fixed the "Some slices were not closed" error
               message. Now the slice named are printed as
               expected.
             - Upgraded to IO 1.1804

  Changes between 1.2.9 and 1.3.0
      980106 - Added support for wildcarded slice at the -o
               option. This is very useful to avoid endless
               union-constructs in slice terms. To avoid
               conflicts the intersection now uses the
               characters [n%] instead of [n*].
             - Upgraded to BIt::Vector 5.0b2
             - Fixed Getopt::Long check in configure.in
             - Added Version display to configure.in
             - Added subdir movement display to Makefile.in
             - Removed "All Rights Reserved" from copyright
               messages because this conflicts with GNU GPL.
             - Adjusted slice.pod for new features and added
               Version, Copyright and See Also sections

  Changes between 1.2.8 and 1.2.9
      971228 - slice.1 now is installed as
               PREFIX/man/man1/slice.1 instead of just
               PREFIX/man/slice.1 [Thanks to Anthony Fok
               <foka@gpu.srv.ualberta.ca> for patch]
             - changed Perl module version check according to the
               way WML does it [Thanks to Anthony Fok
               <foka@gpu.srv.ualberta.ca> for patch]
             - upgraded to GetoptLong 2.13
             - upgraded to IO 1.1803

  Changes between 1.2.7 and 1.2.8
      971212 - disabled Perl warnings 
             - fixed lib/00README file
             - fixed destroyed COPYING file
             - adjusted ChangeLog file to WML format
             - added longoptions to usage page
             - changed -v to -V option
             - changed -x to -v option
             - added -h option

  Changes between 1.2.6 and 1.2.7
      971127 - upgraded to Bit::Vector 5.0b1

  Changes between 1.2.5 and 1.2.6
      971014 - upgraded to Getopt::Long 2.12
      971112 - upgraded to IO 1.1801
             - fixed nasty bug when some slices are used more
               then once (for different output files but one with
               a negation).  [Thanks to Sebastian Wilhelmi for
               hint <wilhelmi@ira.uka.de>]
             - fixed Debug output
             - fixed Perl interpreter determination because of
               Perl 5.004_04 where -v output changed.

  Changes between 1.2.4 and 1.2.5
      970828 - slightly changes the verbose and error messages
             - slightly fixed slice.pod

  Changes between 1.2.3 and 1.2.4
      970819 - upgraded to Getopt::Long 2.10
             - let slice accept empty input files without
               complaining it
             - added RESTRICTION section to slice.pod to make it
               clear that anon end delimiters can lead to
               problems.

  Changes between 1.2.2 and 1.2.3
      970815 - made it workable under Perl 5.003 again
             - removed perl -c check in Makefile.in
             - fixed distclean target
             - fixed lib/Makefile.in
             - fixed lib/getoptlong/Makefile.PL
             - fixed lib/io/Makefile.PL
             - disabled $Getopt::Long::getopt_compat option

  Changes between 1.2.1 and 1.2.2
      970814 - improved the %!slice support [Thanks to Andrew
               Pimlott <pimlott@abel.MATH.HARVARD.EDU> for
               providing the patch]
             - overhauled the ChangeLog file format ;-)

  Changes between 1.2.0 and 1.2.1
      970812 - Perl 5.004 not needed, 5.003 works too.
             - added support for ``%!slice ...'' lines which can
               overwrite the options from within the file

  Changes between 1.1.1 and 1.2.0
      970715 - upgraded etc/newvers
             - upgraded to Bit::Vector 4.2 module
             - added --with-perl option to configure
             - added IO package to lib/
             - added etc/crunch
             - added SLICE@ syntax (see slice.pod)
      970805 - greatly overhauled and optimized the output
               generation

  Changes between 1.1.0 and 1.1.1
      970523 - fixed problem with existing /tmp/x in configure,
               no /tmp/ac.$$
             - fixed new-patchlevel target in Makefile.in
             - added fixperm script and fixperm target

  Changes between 1.0.7 and 1.1.0
      970423 - upgraded from Set::IntegerFast 3.2 to Bit::Vector
               4.0 module

  Changes between 1.0.6 and 1.0.7
      970402 - again fixed MakeMaker install path determination.
               in GNU autoconf again. Now it should really work
               correctly ;_)

  Changes between 1.0.5 and 1.0.6
      970221 - fixed MakeMaker install path determination 
               in GNU autoconf again. Now it should work
               correctly ;_)

  Changes between 1.0.4 and 1.0.5
      970215 - changed COPYRIGHT header to LICENSE header in file
               LICENSE
             - changed library hack with BEGIN to "use lib"
               variant
             - made autoconf part for MakeMaker install paths
               more robust, at least for Linux
             - the slice.1 is pre-generated because pod2man is
               broken on some Linux machines
             - added MKDIR to Makefile.in's install target

  Changes between 1.0.3 and 1.0.4
      970205 - fixed the lib/Makefile
             - changed local() to my() where appropriate
             - fixed a few bugs in slice.pod
             - added "make update-version"

  Changes between 1.0.2 and 1.0.3
      970204 - updated to Steffen Beyers official
               Set::IntegerFast 3.0 module from
               Set-IntegerFast-3.2 bundle.

  Changes between 1.0.1 and 1.0.2
      970131 - fixed setting of empty sets where low = high+1
             - added check for existing slice names

  Changes between 1.0.0 and 1.0.1
      970131 - changed signature of rse
             - used new Set::IntegerFast::Fill_Interval method
             - used new Set::IntegerFast::Size method
             - fixed "make clean" inside lib/
             - fixed "configure" target in Makefile
             - fixed "make clean" for t/

  Changes between *GENESIS* and 1.0.1
      9701xx - *GENESIS*

