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diff --git a/www/wiki/maintenance/language/StatOutputs.php b/www/wiki/maintenance/language/StatOutputs.php
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+++ b/www/wiki/maintenance/language/StatOutputs.php
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+<?php
+/**
+ * Statistic output classes.
+ *
+ * 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 MaintenanceLanguage
+ * @author Ævar Arnfjörð Bjarmason <avarab@gmail.com>
+ * @author Antoine Musso <hashar at free dot fr>
+ */
+
+/** A general output object. Need to be overridden */
+class StatsOutput {
+	function formatPercent( $subset, $total, $revert = false, $accuracy = 2 ) {
+		Wikimedia\suppressWarnings();
+		$return = sprintf( '%.' . $accuracy . 'f%%', 100 * $subset / $total );
+		Wikimedia\restoreWarnings();
+
+		return $return;
+	}
+
+	# Override the following methods
+	function heading() {
+	}
+
+	function footer() {
+	}
+
+	function blockstart() {
+	}
+
+	function blockend() {
+	}
+
+	function element( $in, $heading = false ) {
+	}
+}
+
+/** Outputs WikiText */
+class WikiStatsOutput extends StatsOutput {
+	function heading() {
+		global $wgDummyLanguageCodes;
+		$version = SpecialVersion::getVersion( 'nodb' );
+		echo "'''Statistics are based on:''' <code>" . $version . "</code>\n\n";
+		echo "'''Note:''' These statistics can be generated by running " .
+			"<code>php maintenance/language/transstat.php</code>.\n\n";
+		echo "For additional information on specific languages (the message names, the actual " .
+			"problems, etc.), run <code>php maintenance/language/checkLanguage.php --lang=foo</code>.\n\n";
+		echo 'English (en) is excluded because it is the default localization';
+		if ( is_array( $wgDummyLanguageCodes ) ) {
+			$dummyCodes = [];
+			foreach ( $wgDummyLanguageCodes as $dummyCode => $correctCode ) {
+				$dummyCodes[] = Language::fetchLanguageName( $dummyCode ) . ' (' . $dummyCode . ')';
+			}
+			echo ', as well as the following languages that are not intended for ' .
+				'system message translations, usually because they redirect to other ' .
+				'language codes: ' . implode( ', ', $dummyCodes );
+		}
+		echo ".\n\n"; # dot to end sentence
+		echo '{| class="sortable wikitable" border="2" style="background-color: #F9F9F9; ' .
+			'border: 1px #AAAAAA solid; border-collapse: collapse; clear:both; width:100%;"' . "\n";
+	}
+
+	function footer() {
+		echo "|}\n";
+	}
+
+	function blockstart() {
+		echo "|-\n";
+	}
+
+	function blockend() {
+		echo '';
+	}
+
+	function element( $in, $heading = false ) {
+		echo ( $heading ? '!' : '|' ) . "$in\n";
+	}
+
+	function formatPercent( $subset, $total, $revert = false, $accuracy = 2 ) {
+		Wikimedia\suppressWarnings();
+		$v = round( 255 * $subset / $total );
+		Wikimedia\restoreWarnings();
+
+		if ( $revert ) {
+			# Weigh reverse with factor 20 so coloring takes effect more quickly as
+			# this option is used solely for reporting 'bad' percentages.
+			$v = $v * 20;
+			if ( $v > 255 ) {
+				$v = 255;
+			}
+			$v = 255 - $v;
+		}
+		if ( $v < 128 ) {
+			# Red to Yellow
+			$red = 'FF';
+			$green = sprintf( '%02X', 2 * $v );
+		} else {
+			# Yellow to Green
+			$red = sprintf( '%02X', 2 * ( 255 - $v ) );
+			$green = 'FF';
+		}
+		$blue = '00';
+		$color = $red . $green . $blue;
+
+		$percent = parent::formatPercent( $subset, $total, $revert, $accuracy );
+
+		return 'style="background-color:#' . $color . ';"|' . $percent;
+	}
+}
+
+/** Output text. To be used on a terminal for example. */
+class TextStatsOutput extends StatsOutput {
+	function element( $in, $heading = false ) {
+		echo $in . "\t";
+	}
+
+	function blockend() {
+		echo "\n";
+	}
+}
+
+/** csv output. Some people love excel */
+class CsvStatsOutput extends StatsOutput {
+	function element( $in, $heading = false ) {
+		echo $in . ";";
+	}
+
+	function blockend() {
+		echo "\n";
+	}
+}