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WordAccumulator.php
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WordAccumulator.php
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<?php
/**
* Copyright © 2000, 2001 Geoffrey T. Dairiki <dairiki@dairiki.org>
* You may copy this code freely under the conditions of the GPL.
*
* 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
* @ingroup DifferenceEngine
* @defgroup DifferenceEngine DifferenceEngine
*/
namespace Wikimedia\Diff;
/**
* Stores, escapes and formats the results of word-level diff
*/
class WordAccumulator {
/** @var string */
public $insClass = ' class="diffchange diffchange-inline"';
/** @var string */
public $delClass = ' class="diffchange diffchange-inline"';
/** @var array */
private $lines = [];
/** @var string */
private $line = '';
/** @var string */
private $group = '';
/** @var string */
private $tag = '';
/**
* @param string $new_tag
*/
private function flushGroup( $new_tag ) {
if ( $this->group !== '' ) {
$encGroup = htmlspecialchars( $this->group, ENT_NOQUOTES );
if ( $this->tag == 'ins' ) {
$this->line .= "<ins{$this->insClass}>$encGroup</ins>";
} elseif ( $this->tag == 'del' ) {
$this->line .= "<del{$this->delClass}>$encGroup</del>";
} else {
$this->line .= $encGroup;
}
}
$this->group = '';
$this->tag = $new_tag;
}
/**
* @param string $new_tag
*/
private function flushLine( $new_tag ) {
$this->flushGroup( $new_tag );
if ( $this->line != '' ) {
$this->lines[] = $this->line;
} else {
# make empty lines visible by inserting an NBSP
$this->lines[] = "\u{00A0}";
}
$this->line = '';
}
/**
* @param string[] $words
* @param string $tag
*/
public function addWords( $words, $tag = '' ) {
if ( $tag != $this->tag ) {
$this->flushGroup( $tag );
}
foreach ( $words as $word ) {
// new-line should only come as first char of word.
if ( $word == '' ) {
continue;
}
if ( $word[0] == "\n" ) {
$this->flushLine( $tag );
$word = substr( $word, 1 );
}
// FIXME: Don't use assert()
// phpcs:ignore MediaWiki.Usage.ForbiddenFunctions.assert
assert( !strstr( $word, "\n" ) );
$this->group .= $word;
}
}
/**
* @return string[]
*/
public function getLines() {
$this->flushLine( '~done' );
return $this->lines;
}
}
/** @deprecated class alias since 1.41 */
class_alias( WordAccumulator::class, 'MediaWiki\\Diff\\WordAccumulator' );

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Sat, May 16, 16:12 (13 h, 24 m)
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WordAccumulator.php (2 KB)

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