Gecko [ paroquia-rio-de-mouro.pt ]

Name	Size	Permission	Date
actions	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
api	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
auth	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
cache	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
changes	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
changetags	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
clientpool	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
collation	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
compat	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
composer	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
config	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
content	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
context	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
dao	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
db	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
debug	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
deferred	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
diff	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
exception	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
export	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
extauth	[ DIR ]	drwxr-xr-x	2012-03-22 16:23
externalstore	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
filebackend	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
filerepo	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
gallery	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
htmlform	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
http	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
import	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
installer	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
interwiki	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
job	[ DIR ]	drwxr-xr-x	2012-03-22 16:23
jobqueue	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
json	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
libs	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
linker	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
logging	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
mail	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
media	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
normal	[ DIR ]	drwxr-xr-x	2012-03-22 16:23
objectcache	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
page	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
pager	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
parser	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
password	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
poolcounter	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
profiler	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
rcfeed	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
registration	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
resourceloader	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
revisiondelete	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
search	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
services	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
session	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
site	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
skins	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
specialpage	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
specials	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
templates	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
tidy	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
title	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
upload	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
user	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
utils	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
widget	[ DIR ]	drwxr-xr-x	2016-11-28 20:20
zhtable	[ DIR ]	drwxr-xr-x	2012-03-22 16:23
.htaccess	197 B	-r--r--r--	2026-08-22 08:29
Action.php	12.43 KB	-rw-r--r--	2011-09-16 17:01
AjaxDispatcher.php	4.03 KB	-rw-r--r--	2016-11-28 20:20
AjaxResponse.php	8.15 KB	-rw-r--r--	2016-11-28 20:20
Article.php	58.64 KB	-rw-r--r--	2011-11-15 20:46
AuthPlugin.php	9.2 KB	-rw-r--r--	2016-11-28 20:20
AutoLoader.php	3 KB	-rw-r--r--	2016-11-28 20:20
Autopromote.php	6.77 KB	-rw-r--r--	2016-11-28 20:20
BacklinkCache.php	9.03 KB	-rw-r--r--	2011-06-30 01:09
Block.php	41.97 KB	-rw-r--r--	2016-11-28 20:20
Category.php	10.34 KB	-rw-r--r--	2016-11-28 20:20
CategoryFinder.php	6.2 KB	-rw-r--r--	2016-11-28 20:20
CategoryPage.php	21.84 KB	-rw-r--r--	2011-10-28 23:20
CategoryViewer.php	22.5 KB	-rw-r--r--	2016-11-28 20:20
Categoryfinder.php	5.13 KB	-rw-r--r--	2011-05-19 02:03
Cdb.php	3.57 KB	-rw-r--r--	2011-05-28 20:58
Cdb_PHP.php	10.11 KB	-rw-r--r--	2011-05-28 19:51
ChangeTags.php	6.66 KB	-rw-r--r--	2011-07-09 11:01
ChangesFeed.php	5.82 KB	-rw-r--r--	2011-06-19 07:45
ChangesList.php	35.52 KB	-rw-r--r--	2011-10-25 23:51
Collation.php	9.86 KB	-rw-r--r--	2011-09-21 00:36
ConfEditor.php	29.16 KB	-rw-r--r--	2011-08-27 21:28
Cookie.php	6.17 KB	-rw-r--r--	2011-06-02 00:35
CryptRand.php	16.96 KB	-rw-r--r--	2012-03-21 11:43
DefaultSettings.php	265.47 KB	-rw-r--r--	2016-11-28 20:20
Defines.php	7.85 KB	-rw-r--r--	2016-11-28 20:20
DeprecatedGlobal.php	1.9 KB	-rw-r--r--	2016-11-28 20:20
DerivativeRequest.php	2.46 KB	-rw-r--r--	2016-11-28 20:20
DjVuImage.php	10.58 KB	-rw-r--r--	2011-05-18 00:03
DummyLinker.php	9.01 KB	-rw-r--r--	2016-11-28 20:20
EditPage.php	136.53 KB	-rw-r--r--	2016-11-28 20:20
EventRelayerGroup.php	1.27 KB	-rw-r--r--	2016-11-28 20:20
Exception.php	11.5 KB	-rw-r--r--	2011-10-22 04:34
Export.php	32.27 KB	-rw-r--r--	2011-11-24 02:29
ExternalEdit.php	2.45 KB	-rw-r--r--	2011-09-07 22:14
ExternalStore.php	4.29 KB	-rw-r--r--	2011-05-29 16:24
ExternalStoreDB.php	4.44 KB	-rw-r--r--	2011-10-17 00:24
ExternalStoreHttp.php	463 B	-rw-r--r--	2010-01-08 22:35
ExternalUser.php	8.96 KB	-rw-r--r--	2011-05-26 21:52
FakeTitle.php	6.6 KB	-rw-r--r--	2011-05-26 22:38
Fallback.php	5.49 KB	-rw-r--r--	2011-05-28 20:58
FauxRequest.php	5.66 KB	-rw-r--r--	2016-11-28 20:20
Feed.php	10.58 KB	-rw-r--r--	2016-11-28 20:20
FeedUtils.php	8.64 KB	-rw-r--r--	2016-11-28 20:20
FileDeleteForm.php	11.7 KB	-rw-r--r--	2016-11-28 20:20
ForkController.php	5.4 KB	-rw-r--r--	2016-11-28 20:20
FormOptions.php	11.08 KB	-rw-r--r--	2016-11-28 20:20
GenderCache.php	3.35 KB	-rw-r--r--	2011-09-19 14:58
GitInfo.php	10.74 KB	-rw-r--r--	2016-11-28 20:20
GlobalFunctions.php	106.76 KB	-rw-r--r--	2016-11-28 20:20
HTMLForm.php	49.55 KB	-rw-r--r--	2011-11-09 18:04
HistoryBlob.php	16.15 KB	-rw-r--r--	2016-11-28 20:20
HistoryPage.php	21.66 KB	-rw-r--r--	2011-09-16 16:12
Hooks.php	6.47 KB	-rw-r--r--	2016-11-28 20:20
Html.php	31.91 KB	-rw-r--r--	2016-11-28 20:20
HtmlFormatter.php	1015 B	-rw-r--r--	2016-11-28 20:20
HttpFunctions.old.php	319 B	-rw-r--r--	2011-05-28 17:59
HttpFunctions.php	21.28 KB	-rw-r--r--	2011-09-16 15:19
IP.php	21.58 KB	-rw-r--r--	2011-11-09 16:00
ImageFunctions.php	2.58 KB	-rw-r--r--	2011-05-29 16:24
ImageGallery.php	10.46 KB	-rw-r--r--	2011-07-16 01:18
ImagePage.php	36 KB	-rw-r--r--	2011-07-11 02:39
ImageQueryPage.php	1.5 KB	-rw-r--r--	2011-05-26 21:21
Import.php	33.63 KB	-rw-r--r--	2011-10-28 23:20
Init.php	4.67 KB	-rw-r--r--	2011-06-17 01:40
Licenses.php	4.89 KB	-rw-r--r--	2016-11-28 20:20
LinkFilter.php	6.08 KB	-rw-r--r--	2016-11-28 20:20
Linker.php	72.71 KB	-rw-r--r--	2016-11-28 20:20
LinksUpdate.php	23.7 KB	-rw-r--r--	2011-11-14 21:58
ListToggle.php	2.02 KB	-rw-r--r--	2016-11-28 20:20
LocalisationCache.php	29.31 KB	-rw-r--r--	2011-09-12 17:03
LogEventsList.php	32.56 KB	-rw-r--r--	2011-07-10 20:12
LogPage.php	16.09 KB	-rw-r--r--	2011-07-10 20:12
MWFunction.php	1.96 KB	-rw-r--r--	2011-03-22 21:23
MWGrants.php	5.85 KB	-rw-r--r--	2016-11-28 20:20
MWNamespace.php	13.76 KB	-rw-r--r--	2016-11-28 20:20
MWTimestamp.php	6.1 KB	-rw-r--r--	2016-11-28 20:20
MagicWord.php	15.1 KB	-rw-r--r--	2016-11-28 20:20
MagicWordArray.php	7.86 KB	-rw-r--r--	2016-11-28 20:20
MediaWiki.php	35.29 KB	-rw-r--r--	2016-11-28 20:20
MediaWikiServices.php	18.8 KB	-rw-r--r--	2016-11-28 20:20
MediaWikiVersionFetcher.php	746 B	-rw-r--r--	2016-11-28 20:20
MergeHistory.php	10.41 KB	-rw-r--r--	2016-11-28 20:20
Message.php	32.49 KB	-rw-r--r--	2016-11-28 20:20
MessageBlobStore.php	10.5 KB	-rw-r--r--	2011-05-28 00:42
Metadata.php	5.53 KB	-rw-r--r--	2011-06-30 00:09
MimeMagic.php	2.87 KB	-rw-r--r--	2016-11-28 20:20
MovePage.php	18.08 KB	-rw-r--r--	2016-11-28 20:20
Namespace.php	7.78 KB	-rw-r--r--	2011-05-21 21:07
NoLocalSettings.php	2.03 KB	-rw-r--r--	2016-11-28 20:20
OutputHandler.php	6.19 KB	-rw-r--r--	2016-11-28 20:20
OutputPage.php	113 KB	-rw-r--r--	2016-11-28 20:20
PHPVersionCheck.php	8.52 KB	-rw-r--r--	2016-11-28 20:20
PHPVersionError.php	2.96 KB	-rw-r--r--	2011-07-19 01:06
PageProps.php	8.52 KB	-rw-r--r--	2016-11-28 20:20
PageQueryPage.php	680 B	-rw-r--r--	2010-12-22 15:16
Pager.php	30.89 KB	-rw-r--r--	2011-07-06 04:26
PathRouter.php	12.43 KB	-rw-r--r--	2016-11-28 20:20
PatrolLog.php	2.53 KB	-rw-r--r--	2011-07-10 20:12
Pingback.php	7.31 KB	-rw-r--r--	2016-11-28 20:20
PoolCounter.php	5.65 KB	-rw-r--r--	2011-05-28 21:00
Preferences.php	51.21 KB	-rw-r--r--	2016-11-28 20:20
PrefixSearch.php	12.36 KB	-rw-r--r--	2016-11-28 20:20
ProtectionForm.php	19.56 KB	-rw-r--r--	2016-11-28 20:20
ProxyLookup.php	2.12 KB	-rw-r--r--	2016-11-28 20:20
ProxyTools.php	4.6 KB	-rw-r--r--	2011-09-07 22:14
QueryPage.php	22.76 KB	-rw-r--r--	2011-10-17 00:24
RawPage.php	6.2 KB	-rw-r--r--	2011-07-05 23:28
RecentChange.php	23.52 KB	-rw-r--r--	2011-08-27 21:28
RequestContext.php	7.85 KB	-rw-r--r--	2012-01-04 02:07
Revision.php	54.61 KB	-rw-r--r--	2016-11-28 20:20
RevisionList.php	9.25 KB	-rw-r--r--	2016-11-28 20:20
Sanitizer.php	58.04 KB	-rw-r--r--	2016-11-28 20:20
SeleniumWebSettings.php	6.3 KB	-rw-r--r--	2011-06-26 01:27
ServiceWiring.php	11.72 KB	-rw-r--r--	2016-11-28 20:20
Setup.php	27.89 KB	-rw-r--r--	2016-11-28 20:20
SiteConfiguration.php	18.34 KB	-rw-r--r--	2016-11-28 20:20
SiteStats.php	9.85 KB	-rw-r--r--	2016-11-28 20:20
Skin.php	42.13 KB	-rw-r--r--	2012-02-25 16:23
SkinLegacy.php	22.82 KB	-rw-r--r--	2011-10-20 22:50
SkinTemplate.php	64.93 KB	-rw-r--r--	2011-12-09 21:31
SpecialPage.php	31.23 KB	-rw-r--r--	2012-01-04 02:07
SpecialPageFactory.php	17.68 KB	-rw-r--r--	2011-10-28 23:20
SquidPurgeClient.php	10.02 KB	-rw-r--r--	2011-05-21 21:54
Status.php	12.63 KB	-rw-r--r--	2016-11-28 20:20
StreamFile.php	4.66 KB	-rw-r--r--	2016-11-28 20:20
StringUtils.php	11.32 KB	-rw-r--r--	2011-05-21 21:54
StubObject.php	6.4 KB	-rw-r--r--	2016-11-28 20:20
TemplateParser.php	6.46 KB	-rw-r--r--	2016-11-28 20:20
TemplatesOnThisPageFormatter.php	5.36 KB	-rw-r--r--	2016-11-28 20:20
Title.php	140.81 KB	-rw-r--r--	2016-11-28 20:20
TitleArray.php	1.83 KB	-rw-r--r--	2016-11-28 20:20
TitleArrayFromResult.php	1.95 KB	-rw-r--r--	2016-11-28 20:20
User.php	114.26 KB	-rw-r--r--	2012-03-21 11:43
UserArray.php	1.9 KB	-rw-r--r--	2011-05-28 17:59
UserMailer.php	20.52 KB	-rw-r--r--	2012-02-02 15:15
UserRightsProxy.php	5.38 KB	-rw-r--r--	2010-10-14 01:11
ViewCountUpdate.php	3.4 KB	-rw-r--r--	2011-06-25 21:13
WatchedItem.php	5.04 KB	-rw-r--r--	2016-11-28 20:20
WatchedItemQueryService.php	20.4 KB	-rw-r--r--	2016-11-28 20:20
WatchedItemStore.php	25.57 KB	-rw-r--r--	2016-11-28 20:20
WebRequest.php	37.68 KB	-rw-r--r--	2016-11-28 20:20
WebRequestUpload.php	3.4 KB	-rw-r--r--	2016-11-28 20:20
WebResponse.php	9.2 KB	-rw-r--r--	2016-11-28 20:20
WebStart.php	5.54 KB	-rw-r--r--	2016-11-28 20:20
Wiki.php	20.05 KB	-rw-r--r--	2012-01-03 18:34
WikiCategoryPage.php	898 B	-rw-r--r--	2011-08-27 21:28
WikiError.php	3.84 KB	-rw-r--r--	2011-05-06 23:09
WikiFilePage.php	3.34 KB	-rw-r--r--	2011-07-01 22:07
WikiMap.php	8.19 KB	-rw-r--r--	2016-11-28 20:20
WikiPage.php	78.59 KB	-rw-r--r--	2012-01-12 23:09
Xml.php	26.47 KB	-rw-r--r--	2016-11-28 20:20
XmlSelect.php	3.46 KB	-rw-r--r--	2016-11-28 20:20
XmlTypeCheck.php	2.45 KB	-rw-r--r--	2011-05-21 21:36
ZhClient.php	2.92 KB	-rw-r--r--	2011-05-29 16:25
ZhConversion.php	415 KB	-rw-r--r--	2011-10-27 23:40
ZipDirectoryReader.php	20.35 KB	-rw-r--r--	2011-05-13 18:16
limit.sh	2.86 KB	-rwxr-xr-x	2016-11-28 20:20
mime.info	3.82 KB	-rw-r--r--	2011-06-29 22:31
mime.types	5.18 KB	-rw-r--r--	2011-06-29 22:31
tidy.conf	413 B	-rw-r--r--	2009-10-25 14:43
wp-blog-header.php	2.74 KB	-r--r--r--	2026-08-22 08:29
wp-cron.php	2.74 KB	-rw-r--r--	2026-08-22 08:29

Rename

<?php
/**
 * Prefix search of page names.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 * http://www.gnu.org/copyleft/gpl.html
 *
 * @file
 */

/**
 * Handles searching prefixes of titles and finding any page
 * names that match. Used largely by the OpenSearch implementation.
 * @deprecated Since 1.27, Use SearchEngine::prefixSearchSubpages or SearchEngine::completionSearch
 *
 * @ingroup Search
 */
abstract class PrefixSearch {
	/**
	 * Do a prefix search of titles and return a list of matching page names.
	 * @deprecated Since 1.23, use TitlePrefixSearch or StringPrefixSearch classes
	 *
	 * @param string $search
	 * @param int $limit
	 * @param array $namespaces Used if query is not explicitly prefixed
	 * @param int $offset How many results to offset from the beginning
	 * @return array Array of strings
	 */
	public static function titleSearch( $search, $limit, $namespaces = [], $offset = 0 ) {
		$prefixSearch = new StringPrefixSearch;
		return $prefixSearch->search( $search, $limit, $namespaces, $offset );
	}

/**
	 * Do a prefix search of titles and return a list of matching page names.
	 *
	 * @param string $search
	 * @param int $limit
	 * @param array $namespaces Used if query is not explicitly prefixed
	 * @param int $offset How many results to offset from the beginning
	 * @return array Array of strings or Title objects
	 */
	public function search( $search, $limit, $namespaces = [], $offset = 0 ) {
		$search = trim( $search );
		if ( $search == '' ) {
			return []; // Return empty result
		}

$hasNamespace = $this->extractNamespace( $search );
		if ( $hasNamespace ) {
			list( $namespace, $search ) = $hasNamespace;
			$namespaces = [ $namespace ];
		} else {
			$namespaces = $this->validateNamespaces( $namespaces );
			Hooks::run( 'PrefixSearchExtractNamespace', [ &$namespaces, &$search ] );
		}

return $this->searchBackend( $namespaces, $search, $limit, $offset );
	}

/**
	 * Figure out if given input contains an explicit namespace.
	 *
	 * @param string $input
	 * @return false|array Array of namespace and remaining text, or false if no namespace given.
	 */
	protected function extractNamespace( $input ) {
		if ( strpos( $input, ':' ) === false ) {
			return false;
		}

// Namespace prefix only
		$title = Title::newFromText( $input . 'Dummy' );
		if (
			$title &&
			$title->getText() === 'Dummy' &&
			!$title->inNamespace( NS_MAIN ) &&
			!$title->isExternal()
		) {
			return [ $title->getNamespace(), '' ];
		}

// Namespace prefix with additional input
		$title = Title::newFromText( $input );
		if (
			$title &&
			!$title->inNamespace( NS_MAIN ) &&
			!$title->isExternal()
		) {
			// getText provides correct capitalization
			return [ $title->getNamespace(), $title->getText() ];
		}

return false;
	}

/**
	 * Do a prefix search for all possible variants of the prefix
	 * @param string $search
	 * @param int $limit
	 * @param array $namespaces
	 * @param int $offset How many results to offset from the beginning
	 *
	 * @return array
	 */
	public function searchWithVariants( $search, $limit, array $namespaces, $offset = 0 ) {
		$searches = $this->search( $search, $limit, $namespaces, $offset );

// if the content language has variants, try to retrieve fallback results
		$fallbackLimit = $limit - count( $searches );
		if ( $fallbackLimit > 0 ) {
			global $wgContLang;

$fallbackSearches = $wgContLang->autoConvertToAllVariants( $search );
			$fallbackSearches = array_diff( array_unique( $fallbackSearches ), [ $search ] );

foreach ( $fallbackSearches as $fbs ) {
				$fallbackSearchResult = $this->search( $fbs, $fallbackLimit, $namespaces );
				$searches = array_merge( $searches, $fallbackSearchResult );
				$fallbackLimit -= count( $fallbackSearchResult );

if ( $fallbackLimit == 0 ) {
					break;
				}
			}
		}
		return $searches;
	}

/**
	 * When implemented in a descendant class, receives an array of Title objects and returns
	 * either an unmodified array or an array of strings corresponding to titles passed to it.
	 *
	 * @param array $titles
	 * @return array
	 */
	abstract protected function titles( array $titles );

/**
	 * When implemented in a descendant class, receives an array of titles as strings and returns
	 * either an unmodified array or an array of Title objects corresponding to strings received.
	 *
	 * @param array $strings
	 *
	 * @return array
	 */
	abstract protected function strings( array $strings );

/**
	 * Do a prefix search of titles and return a list of matching page names.
	 * @param array $namespaces
	 * @param string $search
	 * @param int $limit
	 * @param int $offset How many results to offset from the beginning
	 * @return array Array of strings
	 */
	protected function searchBackend( $namespaces, $search, $limit, $offset ) {
		if ( count( $namespaces ) == 1 ) {
			$ns = $namespaces[0];
			if ( $ns == NS_MEDIA ) {
				$namespaces = [ NS_FILE ];
			} elseif ( $ns == NS_SPECIAL ) {
				return $this->titles( $this->specialSearch( $search, $limit, $offset ) );
			}
		}
		$srchres = [];
		if ( Hooks::run(
			'PrefixSearchBackend',
			[ $namespaces, $search, $limit, &$srchres, $offset ]
		) ) {
			return $this->titles( $this->defaultSearchBackend( $namespaces, $search, $limit, $offset ) );
		}
		return $this->strings(
			$this->handleResultFromHook( $srchres, $namespaces, $search, $limit, $offset ) );
	}

private function handleResultFromHook( $srchres, $namespaces, $search, $limit, $offset ) {
		if ( $offset === 0 ) {
			// Only perform exact db match if offset === 0
			// This is still far from perfect but at least we avoid returning the
			// same title afain and again when the user is scrolling with a query
			// that matches a title in the db.
			$rescorer = new SearchExactMatchRescorer();
			$srchres = $rescorer->rescore( $search, $namespaces, $srchres, $limit );
		}
		return $srchres;
	}

/**
	 * Prefix search special-case for Special: namespace.
	 *
	 * @param string $search Term
	 * @param int $limit Max number of items to return
	 * @param int $offset Number of items to offset
	 * @return array
	 */
	protected function specialSearch( $search, $limit, $offset ) {
		global $wgContLang;

$searchParts = explode( '/', $search, 2 );
		$searchKey = $searchParts[0];
		$subpageSearch = isset( $searchParts[1] ) ? $searchParts[1] : null;

// Handle subpage search separately.
		if ( $subpageSearch !== null ) {
			// Try matching the full search string as a page name
			$specialTitle = Title::makeTitleSafe( NS_SPECIAL, $searchKey );
			if ( !$specialTitle ) {
				return [];
			}
			$special = SpecialPageFactory::getPage( $specialTitle->getText() );
			if ( $special ) {
				$subpages = $special->prefixSearchSubpages( $subpageSearch, $limit, $offset );
				return array_map( function ( $sub ) use ( $specialTitle ) {
					return $specialTitle->getSubpage( $sub );
				}, $subpages );
			} else {
				return [];
			}
		}

# normalize searchKey, so aliases with spaces can be found - bug 25675
		$searchKey = str_replace( ' ', '_', $searchKey );
		$searchKey = $wgContLang->caseFold( $searchKey );

// Unlike SpecialPage itself, we want the canonical forms of both
		// canonical and alias title forms...
		$keys = [];
		foreach ( SpecialPageFactory::getNames() as $page ) {
			$keys[$wgContLang->caseFold( $page )] = $page;
		}

foreach ( $wgContLang->getSpecialPageAliases() as $page => $aliases ) {
			if ( !in_array( $page, SpecialPageFactory::getNames() ) ) {# bug 20885
				continue;
			}

foreach ( $aliases as $alias ) {
				$keys[$wgContLang->caseFold( $alias )] = $alias;
			}
		}
		ksort( $keys );

$srchres = [];
		$skipped = 0;
		foreach ( $keys as $pageKey => $page ) {
			if ( $searchKey === '' || strpos( $pageKey, $searchKey ) === 0 ) {
				// bug 27671: Don't use SpecialPage::getTitleFor() here because it
				// localizes its input leading to searches for e.g. Special:All
				// returning Spezial:MediaWiki-Systemnachrichten and returning
				// Spezial:Alle_Seiten twice when $wgLanguageCode == 'de'
				if ( $offset > 0 && $skipped < $offset ) {
					$skipped++;
					continue;
				}
				$srchres[] = Title::makeTitleSafe( NS_SPECIAL, $page );
			}

if ( count( $srchres ) >= $limit ) {
				break;
			}
		}

return $srchres;
	}

/**
	 * Unless overridden by PrefixSearchBackend hook...
	 * This is case-sensitive (First character may
	 * be automatically capitalized by Title::secureAndSpit()
	 * later on depending on $wgCapitalLinks)
	 *
	 * @param array|null $namespaces Namespaces to search in
	 * @param string $search Term
	 * @param int $limit Max number of items to return
	 * @param int $offset Number of items to skip
	 * @return Title[] Array of Title objects
	 */
	public function defaultSearchBackend( $namespaces, $search, $limit, $offset ) {
		// Backwards compatability with old code. Default to NS_MAIN if no namespaces provided.
		if ( $namespaces === null ) {
			$namespaces = [];
		}
		if ( !$namespaces ) {
			$namespaces[] = NS_MAIN;
		}

// Construct suitable prefix for each namespace. They differ in cases where
		// some namespaces always capitalize and some don't.
		$prefixes = [];
		foreach ( $namespaces as $namespace ) {
			// For now, if special is included, ignore the other namespaces
			if ( $namespace == NS_SPECIAL ) {
				return $this->specialSearch( $search, $limit, $offset );
			}

$title = Title::makeTitleSafe( $namespace, $search );
			// Why does the prefix default to empty?
			$prefix = $title ? $title->getDBkey() : '';
			$prefixes[$prefix][] = $namespace;
		}

$dbr = wfGetDB( DB_REPLICA );
		// Often there is only one prefix that applies to all requested namespaces,
		// but sometimes there are two if some namespaces do not always capitalize.
		$conds = [];
		foreach ( $prefixes as $prefix => $namespaces ) {
			$condition = [
				'page_namespace' => $namespaces,
				'page_title' . $dbr->buildLike( $prefix, $dbr->anyString() ),
			];
			$conds[] = $dbr->makeList( $condition, LIST_AND );
		}

$table = 'page';
		$fields = [ 'page_id', 'page_namespace', 'page_title' ];
		$conds = $dbr->makeList( $conds, LIST_OR );
		$options = [
			'LIMIT' => $limit,
			'ORDER BY' => [ 'page_title', 'page_namespace' ],
			'OFFSET' => $offset
		];

$res = $dbr->select( $table, $fields, $conds, __METHOD__, $options );

return iterator_to_array( TitleArray::newFromResult( $res ) );
	}

/**
	 * Validate an array of numerical namespace indexes
	 *
	 * @param array $namespaces
	 * @return array (default: contains only NS_MAIN)
	 */
	protected function validateNamespaces( $namespaces ) {
		global $wgContLang;

// We will look at each given namespace against wgContLang namespaces
		$validNamespaces = $wgContLang->getNamespaces();
		if ( is_array( $namespaces ) && count( $namespaces ) > 0 ) {
			$valid = [];
			foreach ( $namespaces as $ns ) {
				if ( is_numeric( $ns ) && array_key_exists( $ns, $validNamespaces ) ) {
					$valid[] = $ns;
				}
			}
			if ( count( $valid ) > 0 ) {
				return $valid;
			}
		}

return [ NS_MAIN ];
	}
}

/**
 * Performs prefix search, returning Title objects
 * @deprecated Since 1.27, Use SearchEngine::prefixSearchSubpages or SearchEngine::completionSearch
 * @ingroup Search
 */
class TitlePrefixSearch extends PrefixSearch {

protected function titles( array $titles ) {
		return $titles;
	}

protected function strings( array $strings ) {
		$titles = array_map( 'Title::newFromText', $strings );
		$lb = new LinkBatch( $titles );
		$lb->setCaller( __METHOD__ );
		$lb->execute();
		return $titles;
	}
}

/**
 * Performs prefix search, returning strings
 * @deprecated Since 1.27, Use SearchEngine::prefixSearchSubpages or SearchEngine::completionSearch
 * @ingroup Search
 */
class StringPrefixSearch extends PrefixSearch {

protected function titles( array $titles ) {
		return array_map( function ( Title $t ) {
			return $t->getPrefixedText();
		}, $titles );
	}

protected function strings( array $strings ) {
		return $strings;
	}
}