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htmlpurifier/library/HTMLPurifier/Injector/PurifierLinkify.php

63 lines
1.9 KiB
PHP

<?php
require_once 'HTMLPurifier/Injector.php';
HTMLPurifier_ConfigSchema::define(
'AutoFormat', 'PurifierLinkify', false, 'bool', '
<p>
Internal auto-formatter that converts configuration directives in
syntax <a>%Namespace.Directive</a> to links. This directive has been available
since 2.0.1.
</p>
');
HTMLPurifier_ConfigSchema::define(
'AutoFormatParam', 'PurifierLinkifyDocURL', '#%s', 'string', '
<p>
Location of configuration documentation to link to, let %s substitute
into the configuration\'s namespace and directive names sans the percent
sign. This directive has been available since 2.0.1.
</p>
');
/**
* Injector that converts configuration directive syntax %Namespace.Directive
* to links
*/
class HTMLPurifier_Injector_PurifierLinkify extends HTMLPurifier_Injector
{
var $docURL;
function prepare($config, &$context) {
parent::prepare($config, $context);
$this->docURL = $config->get('AutoFormatParam', 'PurifierLinkifyDocURL');
}
function handleText(&$token) {
if (!$this->allowsElement('a')) return;
if (strpos($token->data, '%') === false) return;
$bits = preg_split('#%([a-z0-9]+\.[a-z0-9]+)#Si', $token->data, -1, PREG_SPLIT_DELIM_CAPTURE);
$token = array();
// $i = index
// $c = count
// $l = is link
for ($i = 0, $c = count($bits), $l = false; $i < $c; $i++, $l = !$l) {
if (!$l) {
if ($bits[$i] === '') continue;
$token[] = new HTMLPurifier_Token_Text($bits[$i]);
} else {
$token[] = new HTMLPurifier_Token_Start('a',
array('href' => str_replace('%s', $bits[$i], $this->docURL)));
$token[] = new HTMLPurifier_Token_Text('%' . $bits[$i]);
$token[] = new HTMLPurifier_Token_End('a');
}
}
}
}