Source for file HTMLModule.php
Documentation is available at HTMLModule.php
* Represents an XHTML 1.1 module, with information on elements, tags
* @note Even though this is technically XHTML 1.1, it is also used for
* regular HTML parsing. We are using modulization as a convenient
* way to represent the internals of HTMLDefinition, and our
* implementation is by no means conforming and does not directly
* use the normative DTDs or XML schemas.
* @note The public variables in a module should almost directly
* correspond to the variables in HTMLPurifier_HTMLDefinition.
* However, the prefix info carries no special meaning in these
* objects (include it anyway if that's the correspondence though).
* @todo Consider making some member functions protected
// -- Overloadable ----------------------------------------------------
* Short unique string identifier of the module
* Informally, a list of elements this module changes. Not used in
* Associative array of element names to element definitions.
* Some definitions may be incomplete, to be merged in later
* with the full definition.
* Associative array of content set names to content set additions.
* This is commonly used to, say, add an A element to the Inline
* content set. This corresponds to an internal variable $content_sets
* and NOT info_content_sets member variable of HTMLDefinition.
* Associative array of attribute collection names to attribute
* collection additions. More rarely used for adding attributes to
* the global collections. Example is the StyleAttribute module adding
* the style attribute to the Core. Corresponds to HTMLDefinition's
* attr_collections->info, since the object's data is only info,
* with extra behavior associated with it.
* Associative array of deprecated tag name to HTMLPurifier_TagTransform
* List of HTMLPurifier_AttrTransform to be performed before validation.
* List of HTMLPurifier_AttrTransform to be performed after validation.
* List of HTMLPurifier_Injector to be performed during well-formedness fixing.
* An injector will only be invoked if all of it's pre-requisites are met;
* if an injector fails setup, there will be no error; it will simply be
* Boolean flag that indicates whether or not getChildDef is implemented.
* For optimization reasons: may save a call to a function. Be sure
* to set it if you do implement getChildDef(), otherwise it will have
* Boolean flag whether or not this module is safe. If it is not safe, all
* of its members are unsafe. Modules are safe by default (this might be
* slightly dangerous, but it doesn't make much sense to force HTML Purifier,
* which is based off of safe HTML, to explicitly say, "This is safe," even
* though there are modules which are "unsafe")
* @note Previously, safety could be applied at an element level granularity.
* We've removed this ability, so in order to add "unsafe" elements
* or attributes, a dedicated module with this property set to false
* Retrieves a proper HTMLPurifier_ChildDef subclass based on
* content_model and content_model_type member variables of
* the HTMLPurifier_ElementDef class. There is a similar function
* in HTMLPurifier_HTMLDefinition.
* @param $def HTMLPurifier_ElementDef instance
* @return HTMLPurifier_ChildDef subclass
// -- Convenience -----------------------------------------------------
* Convenience function that sets up a new element
* @param $element Name of element to add
* @param $type What content set should element be registered to?
* Set as false to skip this step.
* @param $contents Allowed children in form of:
* "$content_model_type: $content_model"
* @param $attr_includes What attribute collections to register to
* @param $attr What unique attributes does the element define?
* @note See ElementDef for in-depth descriptions of these parameters.
* @return Created element definition object, so you
* can set advanced parameters
public function addElement($element, $type, $contents, $attr_includes =
array(), $attr =
array()) {
list
($content_model_type, $content_model) =
$this->parseContents($contents);
// merge in attribute inclusions
// add element to content sets
$content_model, $content_model_type, $attr
// literal object $contents means direct child manipulation
if (!is_string($contents)) $this->info[$element]->child =
$contents;
return $this->info[$element];
* Convenience function that creates a totally blank, non-standalone
* @param $element Name of element to create
* @return Created element
if (!isset
($this->info[$element])) {
$this->info[$element]->standalone =
false;
trigger_error("Definition for $element already exists in module, cannot redefine");
return $this->info[$element];
* Convenience function that registers an element to a content set
* @param Element to register
* @param Name content set (warning: case sensitive, usually upper-case
* Convenience function that transforms single-string contents
* into separate content model and content model type
* @param $contents Allowed children in form of:
* "$content_model_type: $content_model"
* @note If contents is an object, an array of two nulls will be
* returned, and the callee needs to take the original $contents
if (!is_string($contents)) return array(null, null); // defer
// check for shorthand content model forms
return array('empty', '');
return array('optional', 'Inline | #PCDATA');
return array('optional', 'Flow | #PCDATA');
list
($content_model_type, $content_model) =
explode(':', $contents);
$content_model =
trim($content_model);
return array($content_model_type, $content_model);
* Convenience function that merges a list of attribute includes into
* @param $attr Reference to attr array to modify
* @param $attr_includes Array of includes / string include to merge in
if (empty($attr_includes)) $attr_includes =
array();
else $attr_includes =
array($attr_includes);
$attr[0] =
$attr_includes;
* Convenience function that generates a lookup table with boolean
* @param $list List of values to turn into a lookup
* @note You can also pass an arbitrary number of arguments in
* place of the regular argument
* @return Lookup array equivalent of list
foreach ($list as $value) {
* Lazy load construction of the module after determining whether
* or not it's needed, and also when a finalized configuration object
* @param $config Instance of HTMLPurifier_Config
public function setup($config) {}
Documentation generated on Thu, 19 Jun 2008 18:49:30 -0400 by phpDocumentor 1.4.2