CVS log for interchange/code/Filter/lc.filter

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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.

* Add descriptions to filters. Some descriptions for trivial, obsolete,
  or very complex filters were left commented out to not clutter a
  filter list with garbage.

* Fix codedef:foo options callout to not be case sensitive.

* Sort codedef:foo return lists by label.

uc and lc filters are now working according to the current locale, e.g.
umlauts will now properly modified

moved filter aliases to corresponding filter files, use similar
syntax as usertag aliases

* The great filter breakout!

* All filters are now CodeDef definitions in code/Filter/*.

* Besides plain move from Interpolate.pm, changes made to Filter/* include:

	* Adding/fixing header/license/cvsid line (all files)
  * Indenting (where needed)
  * Lowercasing output html (where needed)

* Changes to Interpolate.pm:

  * Removed whole %Filter = ( ... )


I tested everything with the new eg/pcode script, and tried re-starting
Interchange and running few filters on test page. Seems OK.

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

	* 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.