CVS log for interchange/lib/Vend/Parser.pm

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* Updated copyright headers to 2007 (closes bug #102)

* Added GPL and copyright headers to a few files that were missing them.

Fix bug in parser that can cause an infinite loop when malformed ITL
opening tags are encountered.

Bug found and original patch supplied by Dan Collis-Puro <dan@endpoint.com>.

Fix bug in parser that can cause an infinite loop when malformed ITL
opening tags are encountered.

Bug found and original patch supplied by Dan Collis-Puro <dan@endpoint.com>.

* We had been running without warnings so long, we had gotten a bit sloppy
  in our code in some places.

  Because we do lots of uninitialized hash member stuff with arrays
  of fields and $opt, it is basically unreasonable for us to run with
  the "use of uninitialized variable" warnings. Because we do a fair
  amount of numerical comparisons on empty string values, it seemed
  unreasonable to run with "string value in numeric gt" enabled.

  Also, because Safe, HTML::Entities, and some other modules have
  these checks enabled, page code is bound to have warnings issued
  no matter what you do.

  It seems better to run with some warnings enabled so that we can
  catch bad code practice.

  So I have made the code run without warnings prior to and after
  interpolate_html(), and turned off warnings by default in the
  page code.

  If it is desirable to turn on warnings for pages, you can use
  [pragma perl_warnings_in_page] and see warnings for that page
  (or by default if you put in catalog.cfg).

* In general these changes are:

	 no warnings qw(uninitialized numeric);

  in most pages.

* Add $::Pragma->{perl_warnings_in_page}.

* Remove defined checks when simple set tests will do.

* Streamline some code.

* Allow ITL interpolation of reference-based ITL attributes
  if Pragma interpolate_itl_references is set. Allows construction:


	[tmp testing]foobar'ed[/tmp]
	[record
		table=inventory
		key=newkey
		col.quantity=300
		col.stock_message="[scratch testing]"
		]

* Change reference determination tests to the more canonical
  "ref($el) eq 'TYPE'".

The great copyright, email address, URL, and version update.

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

* Major changes to the Interchange output model and UI.

* There will be more commits for menu data.

UI
-------

* Zeald's redesign of the UI layout is almost fully implemented. There
  are but a few pages that don't incorporate the new layout.

* Each page can have an entry in mv_metadata, which allows setting
  of page titles, display types, menus, and more via database setting.
  An editor is provided.

* Virtual UI pages are fully supported. This will allow catalog-specific
  UI settings to be transmitted to a catalog with simple database updates.
  Each page is simply an entry in mv_metadata.

* The second-level menu can be set either with the page class, as before,
  or in the page metadata with $Scratch->{second_menu}.

* There is a third-level menu callable via $Scratch->{third_menu}. There
  are few situations where the old "next_line" menu setting causes the
  third-level menu -- old menu files should be compatible but where possible
  the third-level menu is explicitly specified.

* [table-editor] and [tabbed-display] can now do tabs to the third-level
  menus. This provides a very seamless tabbed display that does not
  require a page access to change.

* Many changes made to pages to map output to the new template.

* New GPG encryption wizard to make setting up of encryption as close
  to painless as I can make it.

* Change to menu editor to incorporate better menu loading.

* New merge_metadata function allows management of new metadata when
  updating the UI.

* Many, many minor changes and visual improvements.

* A good deal of documentation about the metadata and table editor
  has been written, and those items should be committed soon. Many
  of the features are covered.

Core
-----
* Output of the parser is now sent to @Vend::Output, which allows remapping
  of the parser output before output by the Server module.

  There should be no difference in behavior by default.

  Each piece of output is pushed onto an array, and pointers
  are maintained as to the name of the output. The default if
  the output is not remapped is to go to the $Vend::OutputMap{''} space.

  When output is done in non-mapped mode, @Vend::Output is simply
  joined and sent.

  The behavior diffence comes if you use the Vend::Page::output_cat
  routine. It will output the value of a named space.

  You can map output with the ITL tag:

  	[output-to name=foo]

  To return to the default space, you use:

  	[output-to name=""]

  To return to the *previous* named space, use:

  	[output-to]

  That is not normally what is wanted, though.

  All of the above allows you to map pieces of a page to different named
  spaces and unpack them with the [unpack] tag.

  This is all perhaps easier illustrated than described -- the illustration
  is in the changes to the UI, which map output from the page code to the
  template.

Sweeping update of Akopia/Red Hat references, to prepare for 4.8 release
with current Interchange URLs and contact information.

* Add new [deliver ....] tag that allows you to deliver some content
  without worrying about [tag op=header] and page spacing issues.

  Adds new global variable $Vend::Sent which is authoritative notification
  that all content is sent and that all further parsing of ITL
  should stop.

  Allows this:

  [perl]
  	 	if($CGI->{foo}) {
			# Oh, we need to send foo as text
			$Tag->deliver( { type => 'text/plain', body => $Scratch->{foo} });
			return;
		}
		else {
			# Go about parsing ITL
		}
  [/perl]

  Also will work with

  	[deliver type=text/plain][scratch foo][/deliver]

Correct some old comments remaining from HTML::Parser.

Big copyright date update. This will be the last time that Red Hat
copyright notices get updated en masse, since the bulk of new code will
very likely come from non-Red Hat employees.

As this will be a 5.0 release, we are no longer supporting deprecated
MV3 features. Here is the first removal:

	* Remove HTML-embedded syntax, which has been deprecated
	  since late MV3.

	* This reduces documentation and code complexity, and should
	  provide at least a small speedup in parsing.

	* Added "noRearrange" parameter to avoid $Tag->attr_list and
	  $Tag->uneval rearranging params when a hash is encountered as
	  the first argument.

	* Make XML tag recognition really work, my test was bad.

	* Honor XML-style empty container tags.

			[set name="foo"/]

		is equivalent to

			[set name="foo"][/set]

	  If you are going to use this, you MUST name the parameters,
	  and you SHOULD quote them.

	  		[set foo /]         ---> Never works
	  		[set name=foo/]     ---> Does not work
	  		[set name=foo /]    ---> Works but not recommended
	  		[set name="foo" /]  ---> Recommended
	  		[set name="foo"/]   ---> OK

	  Benefits of this are removing a call to parse empty buffers,
	  and it should not add significant overhead.

	* Fix a couple of default setting problems in Form.pm.

Update version number and copyright year, to prepare for the eventual
day when we release version 4.8.4.

	* Add path_adjust Pragma to change all root-based (without protocol)
	  paths to add StaticPath in front of them, i.e.

	  	<A HREF="/something/somepage.html">

		becomes

		<A HREF="/foundation/something/somepage.html">
	  Same for <IMG>, <INPUT TYPE=IMAGE>, <BODY BACKGROUND>,
	  <T* BACKGROUND>, etc.

	  Not yet tested, but should work.

	* Pragma now called often enough that efficiency demands remapping
	  to $::Pragma (to save the hash key lookups).

Upping major version number after trunk/branch switch.

Move DEV_4_7_0 development branch to repository trunk.

Update copyright notices and email addresses.
Standardize module headers and remove a few shebang lines.

	* Avoid bypass possibility for [restrict] where someone could run
	  equivalent of [calc] ...  by using backticks for tag parameters.

  * Tolerate either - or _ in paramer names. I *know* I have made
    this update twice before -- will it finally take?

merged changes 1.2 vs 1.3

Removed some old unused stuff, updated inline POD docs.

Change minor thing for variable namespace checks.

Got rid of some legacy HTML::Parser stuff, mostly non-applicable POD docs.

Back out untested changes.

Whitespace changes (diff -b -B will report nothing except below):

Uncuddled 21 cuddled else statements
Expanded 2 if blocks onto multi-line

  * Why didn't I do this before? Make - == _ in attribute names.

stylistic changes

Changed Interchange name all over, minor exceptions being mvfaq.pod and
mvrpm.pod. Changed copyright notice to Akopia.

Initial import of changed Challenger with UI instead of Minimate.

Initial revision