maintenance/benchmarks/bench_utf8_title_check.php

   1 <?php
   2 /**
   3  * Benchmark for using a regexp vs. mb_check_encoding to check for UTF-8 encoding.
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; if not, write to the Free Software Foundation, Inc.,
  17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
  18  * http://www.gnu.org/copyleft/gpl.html
  19  *
  20  * @file
  21  * @ingroup Benchmark
  22  */
  23
  24 require_once __DIR__ . '/Benchmarker.php';
  25
  26 /**
  27  * This little benchmark executes the regexp used in Language->checkTitleEncoding()
  28  * and compares its execution time against that of mb_check_encoding, if available.
  29  *
  30  * @ingroup Benchmark
  31  */
  32 class bench_utf8_title_check extends Benchmarker {
  33
  34         private $canRun;
  35
  36         private $data;
  37
  38         public function __construct() {
  39                 parent::__construct();
  40
  41                 $this->data = array(
  42                         "",
  43                         "United States of America", // 7bit ASCII
  44                         "S%C3%A9rie%20t%C3%A9l%C3%A9vis%C3%A9e",
  45                         "Acteur%7CAlbert%20Robbins%7CAnglais%7CAnn%20Donahue%7CAnthony%20E.%20Zuiker%7CCarol%20Mendelsohn",
  46                         // This comes from bug 36839
  47                         "Acteur%7CAlbert%20Robbins%7CAnglais%7CAnn%20Donahue%7CAnthony%20E.%20Zuiker%7CCarol%20Mendelsohn%7C"
  48                         . "Catherine%20Willows%7CDavid%20Hodges%7CDavid%20Phillips%7CGil%20Grissom%7CGreg%20Sanders%7CHodges%7C"
  49                         . "Internet%20Movie%20Database%7CJim%20Brass%7CLady%20Heather%7C"
  50                         . "Les%20Experts%20(s%C3%A9rie%20t%C3%A9l%C3%A9vis%C3%A9e)%7CLes%20Experts%20:%20Manhattan%7C"
  51                         . "Les%20Experts%20:%20Miami%7CListe%20des%20personnages%20des%20Experts%7C"
  52                         . "Liste%20des%20%C3%A9pisodes%20des%20Experts%7CMod%C3%A8le%20discussion:Palette%20Les%20Experts%7C"
  53                         . "Nick%20Stokes%7CPersonnage%20de%20fiction%7CPersonnage%20fictif%7CPersonnage%20de%20fiction%7C"
  54                         . "Personnages%20r%C3%A9currents%20dans%20Les%20Experts%7CRaymond%20Langston%7CRiley%20Adams%7C"
  55                         . "Saison%201%20des%20Experts%7CSaison%2010%20des%20Experts%7CSaison%2011%20des%20Experts%7C"
  56                         . "Saison%2012%20des%20Experts%7CSaison%202%20des%20Experts%7CSaison%203%20des%20Experts%7C"
  57                         . "Saison%204%20des%20Experts%7CSaison%205%20des%20Experts%7CSaison%206%20des%20Experts%7C"
  58                         . "Saison%207%20des%20Experts%7CSaison%208%20des%20Experts%7CSaison%209%20des%20Experts%7C"
  59                         . "Sara%20Sidle%7CSofia%20Curtis%7CS%C3%A9rie%20t%C3%A9l%C3%A9vis%C3%A9e%7CWallace%20Langham%7C"
  60                         . "Warrick%20Brown%7CWendy%20Simms%7C%C3%89tats-Unis"
  61                 );
  62
  63                 $this->canRun = function_exists ( 'mb_check_encoding' );
  64
  65                 if ( $this->canRun ) {
  66                         $this->mDescription = "Benchmark for using a regexp vs. mb_check_encoding to check for UTF-8 encoding.";
  67                         mb_internal_encoding( 'UTF-8' );
  68                 } else {
  69                         $this->mDescription = "CANNOT RUN benchmark using mb_check_encoding: function not available.";
  70                 }
  71         }
  72
  73         public function execute() {
  74                 if ( !$this->canRun ) {
  75                         return;
  76                 }
  77                 $benchmarks = array();
  78                 foreach ($this->data as $val) {
  79                         $benchmarks[] = array(
  80                                 'function' => array( $this, 'use_regexp' ),
  81                                 'args' => array( rawurldecode ( $val ) )
  82                         );
  83                         $benchmarks[] = array(
  84                                 'function' => array( $this, 'use_regexp_non_capturing' ),
  85                                 'args' => array( rawurldecode ( $val ) )
  86                         );
  87                         $benchmarks[] = array(
  88                                 'function' => array( $this, 'use_regexp_once_only' ),
  89                                 'args' => array( rawurldecode ( $val ) )
  90                         );
  91                         $benchmarks[] = array(
  92                                 'function' => array( $this, 'use_mb_check_encoding' ),
  93                                 'args' => array( rawurldecode ( $val ) )
  94                         );
  95                 }
  96                 $this->bench( $benchmarks );
  97                 print $this->getFormattedResults();
  98         }
  99
 100         private $isutf8;
 101
 102         function use_regexp( $s ) {
 103                 $this->isutf8 = preg_match( '/^([\x00-\x7f]|[\xc0-\xdf][\x80-\xbf]|' .
 104                                 '[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xf7][\x80-\xbf]{3})+$/', $s );
 105         }
 106
 107         function use_regexp_non_capturing( $s ) {
 108                 // Same as above with a non-capturing subgroup.
 109                 $this->isutf8 = preg_match( '/^(?:[\x00-\x7f]|[\xc0-\xdf][\x80-\xbf]|' .
 110                                 '[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xf7][\x80-\xbf]{3})+$/', $s );
 111         }
 112
 113         function use_regexp_once_only( $s ) {
 114                 // Same as above with a once-only subgroup.
 115                 $this->isutf8 = preg_match( '/^(?>[\x00-\x7f]|[\xc0-\xdf][\x80-\xbf]|' .
 116                                 '[\xe0-\xef][\x80-\xbf]{2}|[\xf0-\xf7][\x80-\xbf]{3})+$/', $s );
 117         }
 118
 119         function use_mb_check_encoding( $s ) {
 120                 $this->isutf8 = mb_check_encoding( $s, 'UTF-8' );
 121         }
 122
 123 }
 124
 125 $maintClass = 'bench_utf8_title_check';
 126 require_once RUN_MAINTENANCE_IF_MAIN;