CVS log for interchange/code/UI_Tag/dump_session.coretag

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Fix incorrect license in headers GPL v2 -> GPL v2 "or later".  Update copyrights.

Fix incorrect license in headers GPL v2 -> GPL v2 "or later".  Update copyrights.

Big copyright and version number update to prepare for 5.3.2 release.

Header/license fix or Version update+minor formatting fix, or both

* Restore capability to show only part of session.

updated LINUXIA branch to 4.9 sources in order to use it as testbed again

Added ability to dump sessions stored in DBI to UI.

* Prettier external session dumps.

* Move most all code out of bin/interchange. The only routines
  that remain are:

		dontwarn
		version
		usage
		catch_warnings
		parse_options
		main_loop

   Once the initial startup for Interchange is done, this code
   is completely out of the picture.

* Create new Vend::Dispatch module which contains the bulk of the
  code removed from bin/interchange.

* Move the important update_data() subroutine to Vend::Data.

* Move the session-related routines to Vend::Session.

* Move the order-related routines do_order() and update_quantity()
  to Vend::Order.

* Change many ::uneval() calls to plain uneval() or Vend::Util::uneval().

* Remove various unused tags and routines....

	* The great tag breakout!

	* Almost all tags are now UserTag definitions. The only exceptions
	  are:

		and bounce goto if label or unless

    * New TagDir directive (default is VENDROOT/code) sets the
	  directory (or directories) which are searched for code definitions
	  set by UserTag and CodeDef.

	* New TagGroup directive establishes groups of ITL tags which can
	  be included.

	  	TagGroup :crufty "banner default ecml html_table onfly sql"

	  The default groups include :core, which contains all of the
	  ITL tags defined in 4.8/early 4.9. The groups are defined
	  in $Vend::Cfg::StdTags and can be undefined if desired
	  with "TagGroup :group".

	* New TagInclude directive allows inclusion of tags (or groups
	  of tags). If a tag is defined as a core tag (with a .coretag
	  or .tag or .ct extension) and is not included, it will not
	  be compiled and placed in the tag map. This is for all catalogs,
	  so if *any* catalog uses a tag it must be included.

	  Examples:

		# Include the base tags
	  	TagInclude :core

		# Not the commerce tags
		TagInclude !:commerce

		# But make sure item-list is included even though
		# it is in :commerce
		TagInclude item-list

		## Double negatives are honored
		TagGroup    :foo "bar !baz buz"
		## With the group above, the below is equivalent
		## to TagInclude !bar baz !buz
		TagInclude !:foo

    * New CodeDef directive allows the setting of filters,
	  order checks, FormAction, ActionMap, ItemAction,
	  and LocaleChange.

			## filters
			CodeDef  mixedcase Filter
			CodeDef  mixedcase Routine <<EOR
			sub {
				my $val = shift;
				## [filter mixedcase]mixed case[/filter]
				## outputs "MiXeD CaSe"
				$val =~ s/(.)(.)/\u$1\l$2/g;
				return $val;
			}
			EOR

			## order checks
			CodeDef  mixedcase OrderCheck
			CodeDef  foo  Routine <<EOR
			sub {
				my ($ref, $var, $val) = @_;
				return (1,$var) if $val eq 'bar';
				return (0,$var, "foo must be bar");
			}
			EOR

	   All work in catalog.cfg; LocaleChange and ItemAction are not
	   global. FormAction, ActionMap, and ItemAction directives
	   are equivalent to their CodeDef equivalents.