[3.1.0] De-crudify the ConfigSchema space; we're starting over again

- Optimize ConfigSchema by removing non-essential runtime data. We can probably optimize even more by collapsing object structures to arrays.
- Removed validation data from ConfigSchema; this will be reimplemented on Interchange
- Implement a sane Interchange composite hierarchy that doesn't use arrays
- Implement StringHash -> Interchange -> ConfigSchema, and rewrite maintenance file to account for this

git-svn-id: http://htmlpurifier.org/svnroot/htmlpurifier/trunk@1615 48356398-32a2-884e-a903-53898d9a118a

library/HTMLPurifier/ConfigSchema/Interchange/Directive.php

@@ -0,0 +1,70 @@
+<?php
+
+/**
+ * Interchange component class describing configuration directives.
+ */
+class HTMLPurifier_ConfigSchema_Interchange_Directive
+{
+    
+    /**
+     * ID of directive, instance of HTMLPurifier_ConfigSchema_Interchange_Id.
+     */
+    public $id;
+    
+    /**
+     * String type, e.g. 'integer' or 'istring'.
+     */
+    public $type;
+    
+    /**
+     * Default value, e.g. 3 or 'DefaultVal'.
+     */
+    public $default;
+    
+    /**
+     * HTML description.
+     */
+    public $description;
+    
+    /**
+     * Boolean whether or not null is allowed as a value.
+     */
+    public $typeAllowsNull = false;
+    
+    /**
+     * Lookup table of allowed scalar values, e.g. array('allowed' => true).
+     * Null if all values are allowed.
+     */
+    public $allowed;
+    
+    /**
+     * List of aliases for the directive, e.g. array('Alt.Directive').
+     */
+    public $aliases = array();
+    
+    /**
+     * Hash of value aliases, e.g. array('alt' => 'real'). Null if value
+     * aliasing is disabled (necessary for non-scalar types).
+     */
+    public $valueAliases;
+    
+    /**
+     * Version of HTML Purifier the directive was introduced, e.g. '1.3.1'.
+     * Null if the directive has always existed.
+     */
+    public $version;
+    
+    /**
+     * ID of directive that supercedes this old directive, is an instance
+     * of HTMLPurifier_ConfigSchema_Interchange_Id. Null if not deprecated.
+     */
+    public $deprecatedUse;
+    
+    /**
+     * Version of HTML Purifier this directive was deprecated. Null if not
+     * deprecated.
+     */
+    public $deprecatedVersion;
+    
+    
+}

library/HTMLPurifier/ConfigSchema/Interchange/Id.php

@@ -0,0 +1,25 @@
+<?php
+
+/**
+ * Represents a directive ID in the interchange format.
+ */
+class HTMLPurifier_ConfigSchema_Interchange_Id
+{
+    
+    public $namespace, $directive;
+    
+    public function __construct($namespace, $directive) {
+        $this->namespace = $namespace;
+        $this->directive = $directive;
+    }
+    
+    public function __toString() {
+        return $this->namespace . '.' . $this->directive;
+    }
+    
+    public static function make($id) {
+        list($namespace, $directive) = explode('.', $id);
+        return new HTMLPurifier_ConfigSchema_Interchange_Id($namespace, $directive);
+    }
+    
+}

library/HTMLPurifier/ConfigSchema/Interchange/Namespace.php

@@ -0,0 +1,19 @@
+<?php
+
+/**
+ * Interchange component class describing namespaces.
+ */
+class HTMLPurifier_ConfigSchema_Interchange_Namespace
+{
+    
+    /**
+     * Name of namespace defined.
+     */
+    public $namespace;
+    
+    /**
+     * HTML description.
+     */
+    public $description;
+    
+}