/usr/share/mediawiki-extensions/base/FootNote/Footnote.php is in mediawiki-extensions-base 2.5.
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.,
# 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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>
*
* @author Anders Wegge Jakobsen <awegge@gmail.com>
* @addtogroup Extensions
*/
if( !defined( 'MEDIAWIKI' ) ) {
die();
}
$wgExtensionFunctions[] = "wfFootnote";
function wfFootnote() {
global $wgParser, $wgHooks ;
$wgParser->setHook( "footnote" , 'parse_footnote' ) ;
$wgHooks['ParserBeforeTidy'][] = 'insert_endnotes' ;
}
$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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