/usr/share/mediawiki-extensions/base/FootNote/Footnote.php is in mediawiki-extensions-base 3.7.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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/**
* Copyright (C) 2005 Anders Wegge Jakobsen <awegge@gmail.com>
* http://www.mediawiki.org/
*
* 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
*
* Extension to add footnotes to the wiki pages.
*
* Use with:
*
* <footnote>This text is placed at the end of the page.</footnote>
*
* @file
* @author Anders Wegge Jakobsen <awegge@gmail.com>
* @ingroup Extensions
*/
if( !defined( 'MEDIAWIKI' ) ) {
die();
}
$wgExtensionCredits['parserhook'][] = array(
'path' => __FILE__,
'name' => 'Footnote',
'author' => '',
'url' => 'https://www.mediawiki.org/wiki/Extension:Footnote',
);
$wgHooks['ParserBeforeTidy'][] = 'insert_endnotes';
$wgHooks['ParserFirstCallInit'][] = "wfFootnoteSetHook";
function wfFootnoteSetHook( $parser ) {
$parser->setHook( 'footnote', 'parse_footnote' );
return true;
}
$footnoteNotes = array() ;
$footnoteCount = 1 ;
$footnoteRecursionGuard = false;
function insert_endnotes( &$parser, &$text ) {
global $footnoteNotes , $footnoteCount, $footnoteRecursionGuard ;
wfDebug("insert_endnotes:\n<<<$text>>>\n");
if( $footnoteRecursionGuard ) return true;
if( count( $footnoteNotes ) == 0 ) return true;
$ret = "" ;
foreach( $footnoteNotes AS $num => $entry ) {
$x = " <li id=\"footnote{$num}\">$entry <a href='#footnoteback{$num}'>↑</a></li>\n" ;
$ret .= $x ;
}
$ret = "<hr /><ol>" . $ret . "</ol>" ;
$text .= $ret ;
/* Clear global array after rendering */
$footnoteNotes = array();
$footnoteCount = 1 ;
return true;
}
function parse_footnote( $text, $params, $parser ) {
$ret = "" ;
global $footnoteNotes , $footnoteCount, $footnoteRecursionGuard ;
global $footnoteParserObj;
if( !isset( $footnoteParserObj )) {
$footnoteParserObj = new Parser ;
}
$footnoteRecursionGuard = true;
$ret = $footnoteParserObj->parse( $text , $parser->getTitle() , $parser->getOptions(), false ) ;
$ret = $ret->getText();
$footnoteRecursionGuard = false;
$footnoteNotes[$footnoteCount] = $ret;
$ret = "<a href='#footnote{$footnoteCount}' name='footnoteback{$footnoteCount}'><sup>$footnoteCount</sup></a>" ;
$footnoteCount++ ;
if( $footnoteCount == 2 ) {
global $wgHooks;
$wgHooks['ParserBeforeTidy'][] = 'insert_endnotes' ;
}
return $ret ;
}
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