<?php

/**
 * Defines allowed child nodes and validates nodes against it.
 */
abstract class HTMLPurifier_ChildDef
{
    /**
     * Type of child definition, usually right-most part of class name lowercase.
     * Used occasionally in terms of context.
     * @type string
     */
    public $type;

    /**
     * Indicates whether or not an empty array of children is okay.
     *
     * This is necessary for redundant checking when changes affecting
     * a child node may cause a parent node to now be disallowed.
     * @type bool
     */
    public $allow_empty;

    /**
     * Lookup array of all elements that this definition could possibly allow.
     * @type array
     */
    public $elements = array();

    /**
     * Get lookup of tag names that should not close this element automatically.
     * All other elements will do so.
     * @param HTMLPurifier_Config $config HTMLPurifier_Config object
     * @return array
     */
    public function getAllowedElements($config)
    {
        return $this->elements;
    }

    /**
     * Validates nodes according to definition and returns modification.
     *
     * @param HTMLPurifier_Node[] $children Array of HTMLPurifier_Node
     * @param HTMLPurifier_Config $config HTMLPurifier_Config object
     * @param HTMLPurifier_Context $context HTMLPurifier_Context object
     * @return bool|array true to leave nodes as is, false to remove parent node, array of replacement children
     */
    abstract public function validateChildren($children, $config, $context);
}

// vim: et sw=4 sts=4

• [D] AttrDef
• [D] AttrTransform
• [D] ChildDef
• [D] ConfigSchema
• [D] DefinitionCache
• [D] EntityLookup
• [D] Filter
• [D] HTMLModule
• [D] Injector
• [D] Language
• [D] Lexer
• [D] Node
• [D] Printer
• [D] Strategy
• [D] TagTransform
• [D] Token
• [D] URIFilter
• [D] URIScheme
• [D] VarParser
• [F] Arborize.php
  Delete
• [F] AttrCollections.php
  Delete
• [F] AttrDef.php
  Delete
• [F] AttrTransform.php
  Delete
• [F] AttrTypes.php
  Delete
• [F] AttrValidator.php
  Delete
• [F] Bootstrap.php
  Delete
• [F] ChildDef.php
  Delete
• [F] Config.php
  Delete
• [F] ConfigSchema.php
  Delete
• [F] ContentSets.php
  Delete
• [F] Context.php
  Delete
• [F] CSSDefinition.php
  Delete
• [F] Definition.php
  Delete
• [F] DefinitionCache.php
  Delete
• [F] DefinitionCacheFactory.php
  Delete
• [F] Doctype.php
  Delete
• [F] DoctypeRegistry.php
  Delete
• [F] ElementDef.php
  Delete
• [F] Encoder.php
  Delete
• [F] EntityLookup.php
  Delete
• [F] EntityParser.php
  Delete
• [F] ErrorCollector.php
  Delete
• [F] ErrorStruct.php
  Delete
• [F] Exception.php
  Delete
• [F] Filter.php
  Delete
• [F] Generator.php
  Delete
• [F] HTMLDefinition.php
  Delete
• [F] HTMLModule.php
  Delete
• [F] HTMLModuleManager.php
  Delete
• [F] IDAccumulator.php
  Delete
• [F] Injector.php
  Delete
• [F] Language.php
  Delete
• [F] LanguageFactory.php
  Delete
• [F] Length.php
  Delete
• [F] Lexer.php
  Delete
• [F] Node.php
  Delete
• [F] PercentEncoder.php
  Delete
• [F] Printer.php
  Delete
• [F] PropertyList.php
  Delete
• [F] PropertyListIterator.php
  Delete
• [F] Queue.php
  Delete
• [F] Strategy.php
  Delete
• [F] StringHash.php
  Delete
• [F] StringHashParser.php
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• [F] TagTransform.php
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• [F] Token.php
  Delete
• [F] TokenFactory.php
  Delete
• [F] UnitConverter.php
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• [F] URI.php
  Delete
• [F] URIDefinition.php
  Delete
• [F] URIFilter.php
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• [F] URIParser.php
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• [F] URIScheme.php
  Delete
• [F] URISchemeRegistry.php
  Delete
• [F] VarParser.php
  Delete
• [F] VarParserException.php
  Delete
• [F] Zipper.php
  Delete

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