[3.1.0] Deprecate addFilter; set up Filter namespace

- Added EXTERNAL dependency config-schema value
- Fix safe bug in Printer_HTMLDefinition
- Fixed broken smoketests

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1669 48356398-32a2-884e-a903-53898d9a118a

library/HTMLPurifier/ConfigSchema/schema/Filter.Custom.txt

@@ -0,0 +1,10 @@
+Filter.Custom
+TYPE: list
+VERSION: 3.1.0
+DEFAULT: array()
+--DESCRIPTION--
+<p>
+  This directive can be used to add custom filters; it is nearly the
+  equivalent of the now deprecated <code>HTMLPurifier-&gt;addFilter()</code>
+  method. Specify an array of concrete implementations.
+</p>

library/HTMLPurifier/ConfigSchema/schema/Filter.ExtractStyleBlocks.txt

@@ -0,0 +1,23 @@
+Filter.ExtractStyleBlocks
+TYPE: bool
+VERSION: 3.1.0
+DEFAULT: false
+EXTERNAL: CSSTidy
+--DESCRIPTION--
+<p>
+  This directive turns on the style block extraction filter, which removes
+  <code>style</code> blocks from input HTML, cleans them up with CSSTidy,
+  and places them in the <code>StyleBlocks</code> context variable, for further
+  use by you, usually to be placed in an external stylesheet, or a
+  <code>style</code> block in the <code>head</code> of your document.
+</p>
+<p>
+  Sample usage:
+</p>
+<pre><![CDATA[$config = HTMLPurifier_Config::createDefault();
+$config->set('Filter', 'ExtractStyleBlocks', true);
+$purifier = new HTMLPurifier($config);
+$styles = $purifier->context->get('StyleBlocks');
+foreach ($styles as $style) {
+    echo '<style type="text/css">' . $style . "</style>\n";
+}]]></pre>

library/HTMLPurifier/ConfigSchema/schema/Filter.YouTube.txt

@@ -0,0 +1,10 @@
+Filter.YouTube
+TYPE: bool
+VERSION: 3.1.0
+DEFAULT: false
+--DESCRIPTION--
+<p>
+  This directive enables YouTube video embedding in HTML Purifier. Check
+  <a href="http://htmlpurifier.org/docs/enduser-youtube.html">this document
+  on embedding videos</a> for more information on what this filter does.
+</p>

library/HTMLPurifier/ConfigSchema/schema/Filter.txt

@@ -1,2 +1,2 @@
 Filter
-DESCRIPTION: Configuration for filters
+DESCRIPTION: Directives for turning filters on and off, or specifying custom filters.

library/HTMLPurifier/ConfigSchema/schema/FilterParam.ExtractStyleBlocksEscaping.txt

@@ -1,7 +1,8 @@
-Filter.ExtractStyleBlocksEscaping
+FilterParam.ExtractStyleBlocksEscaping
 TYPE: bool
 VERSION: 3.0.0
 DEFAULT: true
+ALIASES: Filter.ExtractStyleBlocksEscaping
 --DESCRIPTION--
 
 <p>

library/HTMLPurifier/ConfigSchema/schema/FilterParam.ExtractStyleBlocksScope.txt

@@ -1,7 +1,8 @@
-Filter.ExtractStyleBlocksScope
+FilterParam.ExtractStyleBlocksScope
 TYPE: string/null
 VERSION: 3.0.0
 DEFAULT: NULL
+ALIASES: Filter.ExtractStyleBlocksScope
 --DESCRIPTION--
 
 <p>

library/HTMLPurifier/ConfigSchema/schema/FilterParam.ExtractStyleBlocksTidyImpl.txt

@@ -0,0 +1,14 @@
+FilterParam.ExtractStyleBlocksTidyImpl
+TYPE: mixed/null
+VERSION: 3.1.0
+DEFAULT: NULL
+--DESCRIPTION--
+<p>
+  If left NULL, HTML Purifier will attempt to instantiate a <code>csstidy</code>
+  class to use for internal cleaning. This will usually be good enough.
+</p>
+<p>
+  However, for trusted user input, you can set this to <code>false</code> to
+  disable cleaning. In addition, you can supply your own concrete implementation
+  of Tidy's interface to use, although I don't know why you'd want to do that.
+</p>

library/HTMLPurifier/ConfigSchema/schema/FilterParam.txt

@@ -0,0 +1,2 @@
+FilterParam
+DESCRIPTION: Configuration for filters.