1: <?php
2:
3: class HTMLPurifier_Injector_RemoveEmpty extends HTMLPurifier_Injector
4: {
5:
6: private $context, $config, $attrValidator, $removeNbsp, $removeNbspExceptions;
7:
8: public function prepare($config, $context) {
9: parent::prepare($config, $context);
10: $this->config = $config;
11: $this->context = $context;
12: $this->removeNbsp = $config->get('AutoFormat.RemoveEmpty.RemoveNbsp');
13: $this->removeNbspExceptions = $config->get('AutoFormat.RemoveEmpty.RemoveNbsp.Exceptions');
14: $this->attrValidator = new HTMLPurifier_AttrValidator();
15: }
16:
17: public function handleElement(&$token) {
18: if (!$token instanceof HTMLPurifier_Token_Start) return;
19: $next = false;
20: for ($i = $this->inputIndex + 1, $c = count($this->inputTokens); $i < $c; $i++) {
21: $next = $this->inputTokens[$i];
22: if ($next instanceof HTMLPurifier_Token_Text) {
23: if ($next->is_whitespace) continue;
24: if ($this->removeNbsp && !isset($this->removeNbspExceptions[$token->name])) {
25: $plain = str_replace("\xC2\xA0", "", $next->data);
26: $isWsOrNbsp = $plain === '' || ctype_space($plain);
27: if ($isWsOrNbsp) continue;
28: }
29: }
30: break;
31: }
32: if (!$next || ($next instanceof HTMLPurifier_Token_End && $next->name == $token->name)) {
33: if ($token->name == 'colgroup') return;
34: $this->attrValidator->validateToken($token, $this->config, $this->context);
35: $token->armor['ValidateAttributes'] = true;
36: if (isset($token->attr['id']) || isset($token->attr['name'])) return;
37: $token = $i - $this->inputIndex + 1;
38: for ($b = $this->inputIndex - 1; $b > 0; $b--) {
39: $prev = $this->inputTokens[$b];
40: if ($prev instanceof HTMLPurifier_Token_Text && $prev->is_whitespace) continue;
41: break;
42: }
43:
44: $this->rewind($b - 1);
45: return;
46: }
47: }
48:
49: }
50:
51:
52: