52bdd38cfd
git-svn-id: file:///home/shish/svn/shimmie2/trunk@693 7f39781d-f577-437e-ae19-be835c7a54ca
45 lines
1.2 KiB
PHP
45 lines
1.2 KiB
PHP
<?php
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/**
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* Name: Spoiler Filter
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* Author: Shish <webmaster@shishnet.org>
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* Link: http://trac.shishnet.org/shimmie2/
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* License: GPLv2
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* Description: Adds a [spoiler] tag to rot13 text inside it
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*/
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class Spoiler extends Extension {
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public function receive_event($event) {
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if(is_a($event, 'TextFormattingEvent')) {
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$event->formatted = $this->filter($event->formatted);
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$event->stripped = $this->strip($event->stripped);
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}
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}
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private function filter($text) {
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return str_replace(
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array("[spoiler]","[/spoiler]"),
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array("<span style=\"background-color:#000; color:#000;\">","</span>"),
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$text);
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}
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private function strip($text) {
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$l1 = strlen("[spoiler]");
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$l2 = strlen("[/spoiler]");
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while(true) {
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$start = strpos($text, "[spoiler]");
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if($start === false) break;
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$end = strpos($text, "[/spoiler]");
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if($end === false) break;
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$beginning = substr($text, 0, $start);
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$middle = str_rot13(substr($text, $start+$l1, ($end-$start-$l1)));
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$ending = substr($text, $end + $l2, (strlen($text)-$end+$l2));
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$text = $beginning . $middle . $ending;
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}
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return $text;
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}
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}
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add_event_listener(new Spoiler(), 45); // before bbcode, so before <br>s are inserted
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?>
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