HTMLPurifier 4.4.0
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00001 <?php 00002 00006 class HTMLPurifier_ChildDef_StrictBlockquote extends HTMLPurifier_ChildDef_Required 00007 { 00008 protected $real_elements; 00009 protected $fake_elements; 00010 public $allow_empty = true; 00011 public $type = 'strictblockquote'; 00012 protected $init = false; 00013 00018 public function getAllowedElements($config) { 00019 $this->init($config); 00020 return $this->fake_elements; 00021 } 00022 00023 public function validateChildren($tokens_of_children, $config, $context) { 00024 00025 $this->init($config); 00026 00027 // trick the parent class into thinking it allows more 00028 $this->elements = $this->fake_elements; 00029 $result = parent::validateChildren($tokens_of_children, $config, $context); 00030 $this->elements = $this->real_elements; 00031 00032 if ($result === false) return array(); 00033 if ($result === true) $result = $tokens_of_children; 00034 00035 $def = $config->getHTMLDefinition(); 00036 $block_wrap_start = new HTMLPurifier_Token_Start($def->info_block_wrapper); 00037 $block_wrap_end = new HTMLPurifier_Token_End( $def->info_block_wrapper); 00038 $is_inline = false; 00039 $depth = 0; 00040 $ret = array(); 00041 00042 // assuming that there are no comment tokens 00043 foreach ($result as $i => $token) { 00044 $token = $result[$i]; 00045 // ifs are nested for readability 00046 if (!$is_inline) { 00047 if (!$depth) { 00048 if ( 00049 ($token instanceof HTMLPurifier_Token_Text && !$token->is_whitespace) || 00050 (!$token instanceof HTMLPurifier_Token_Text && !isset($this->elements[$token->name])) 00051 ) { 00052 $is_inline = true; 00053 $ret[] = $block_wrap_start; 00054 } 00055 } 00056 } else { 00057 if (!$depth) { 00058 // starting tokens have been inline text / empty 00059 if ($token instanceof HTMLPurifier_Token_Start || $token instanceof HTMLPurifier_Token_Empty) { 00060 if (isset($this->elements[$token->name])) { 00061 // ended 00062 $ret[] = $block_wrap_end; 00063 $is_inline = false; 00064 } 00065 } 00066 } 00067 } 00068 $ret[] = $token; 00069 if ($token instanceof HTMLPurifier_Token_Start) $depth++; 00070 if ($token instanceof HTMLPurifier_Token_End) $depth--; 00071 } 00072 if ($is_inline) $ret[] = $block_wrap_end; 00073 return $ret; 00074 } 00075 00076 private function init($config) { 00077 if (!$this->init) { 00078 $def = $config->getHTMLDefinition(); 00079 // allow all inline elements 00080 $this->real_elements = $this->elements; 00081 $this->fake_elements = $def->info_content_sets['Flow']; 00082 $this->fake_elements['#PCDATA'] = true; 00083 $this->init = true; 00084 } 00085 } 00086 } 00087 00088 // vim: et sw=4 sts=4