original_string: public function mapMaker(?string $maker): ?string
      {
          if (null === $maker) {
              return null;
          }
  
          switch (mb_strtolower(trim($maker))) {
              case '':
              case 'unknown':
              case 'other':
              case 'bot':
              case 'various':
                  $maker = null;
                  break;
              case 'microsoft':
              case 'microsoft corporation.':
                  $maker = 'Microsoft Corporation';
                  break;
              case 'apple':
              case 'apple inc.':
              case 'apple computer, inc.':
                  $maker = 'Apple Inc';
                  break;
              case 'google':
              case 'google inc.':
              case 'google, inc.':
                  $maker = 'Google Inc';
                  break;
              case 'lunascape & co., ltd.':
                  $maker = 'Lunascape Corporation';
                  break;
              case 'opera software asa.':
                  $maker = 'Opera Software ASA';
                  break;
              case 'sun microsystems, inc.':
                  $maker = 'Oracle';
                  break;
              case 'postbox, inc.':
                  $maker = 'Postbox Inc';
                  break;
              case 'comodo group, inc.':
                  $maker = 'Comodo Group Inc';
                  break;
              case 'canonical ltd.':
                  $maker = 'Canonical Ltd';
                  break;
              case 'gentoo foundation, inc.':
                  $maker = 'Gentoo Foundation Inc';
                  break;
              case 'omni development, inc.':
                  $maker = 'Omni Development Inc';
                  break;
              case 'slackware linux, inc.':
                  $maker = 'Slackware Linux Inc';
                  break;
              case 'red hat, inc.':
                  $maker = 'Red Hat Inc';
                  break;
              case 'rim':
                  $maker = 'Research In Motion Limited';
                  break;
              case 'mozilla':
                  $maker = 'Mozilla Foundation';
                  break;
              case 'majestic-12':
                  $maker = 'Majestic-12 Ltd';
                  break;
              case 'zum internet':
                  $maker = 'ZUMinternet Corp';
                  break;
              case 'mojeek ltd.':
                  $maker = 'Linkdex Limited';
                  break;
              default:
                  // nothing to do here
                  break;
          }
  
          return $maker;
      }
code: public function mapMaker(?string $maker): ?string
      {
          if (null === $maker) {
              return null;
          }
  
          switch (mb_strtolower(trim($maker))) {
              case '':
              case 'unknown':
              case 'other':
              case 'bot':
              case 'various':
                  $maker = null;
                  break;
              case 'microsoft':
              case 'microsoft corporation.':
                  $maker = 'Microsoft Corporation';
                  break;
              case 'apple':
              case 'apple inc.':
              case 'apple computer, inc.':
                  $maker = 'Apple Inc';
                  break;
              case 'google':
              case 'google inc.':
              case 'google, inc.':
                  $maker = 'Google Inc';
                  break;
              case 'lunascape & co., ltd.':
                  $maker = 'Lunascape Corporation';
                  break;
              case 'opera software asa.':
                  $maker = 'Opera Software ASA';
                  break;
              case 'sun microsystems, inc.':
                  $maker = 'Oracle';
                  break;
              case 'postbox, inc.':
                  $maker = 'Postbox Inc';
                  break;
              case 'comodo group, inc.':
                  $maker = 'Comodo Group Inc';
                  break;
              case 'canonical ltd.':
                  $maker = 'Canonical Ltd';
                  break;
              case 'gentoo foundation, inc.':
                  $maker = 'Gentoo Foundation Inc';
                  break;
              case 'omni development, inc.':
                  $maker = 'Omni Development Inc';
                  break;
              case 'slackware linux, inc.':
                  $maker = 'Slackware Linux Inc';
                  break;
              case 'red hat, inc.':
                  $maker = 'Red Hat Inc';
                  break;
              case 'rim':
                  $maker = 'Research In Motion Limited';
                  break;
              case 'mozilla':
                  $maker = 'Mozilla Foundation';
                  break;
              case 'majestic-12':
                  $maker = 'Majestic-12 Ltd';
                  break;
              case 'zum internet':
                  $maker = 'ZUMinternet Corp';
                  break;
              case 'mojeek ltd.':
                  $maker = 'Linkdex Limited';
                  break;
              default:
                  // nothing to do here
                  break;
          }
  
          return $maker;
      }
code_tokens: public function mapMaker ( ? string $ maker ) : ? string { if ( null === $ maker ) { return null ; } switch ( mb_strtolower ( trim ( $ maker ) ) ) { case '' : case 'unknown' : case 'other' : case 'bot' : case 'various' : $ maker = null ; break ; case 'microsoft' : case 'microsoft corporation.' : $ maker = 'Microsoft Corporation' ; break ; case 'apple' : case 'apple inc.' : case 'apple computer, inc.' : $ maker = 'Apple Inc' ; break ; case 'google' : case 'google inc.' : case 'google, inc.' : $ maker = 'Google Inc' ; break ; case 'lunascape & co., ltd.' : $ maker = 'Lunascape Corporation' ; break ; case 'opera software asa.' : $ maker = 'Opera Software ASA' ; break ; case 'sun microsystems, inc.' : $ maker = 'Oracle' ; break ; case 'postbox, inc.' : $ maker = 'Postbox Inc' ; break ; case 'comodo group, inc.' : $ maker = 'Comodo Group Inc' ; break ; case 'canonical ltd.' : $ maker = 'Canonical Ltd' ; break ; case 'gentoo foundation, inc.' : $ maker = 'Gentoo Foundation Inc' ; break ; case 'omni development, inc.' : $ maker = 'Omni Development Inc' ; break ; case 'slackware linux, inc.' : $ maker = 'Slackware Linux Inc' ; break ; case 'red hat, inc.' : $ maker = 'Red Hat Inc' ; break ; case 'rim' : $ maker = 'Research In Motion Limited' ; break ; case 'mozilla' : $ maker = 'Mozilla Foundation' ; break ; case 'majestic-12' : $ maker = 'Majestic-12 Ltd' ; break ; case 'zum internet' : $ maker = 'ZUMinternet Corp' ; break ; case 'mojeek ltd.' : $ maker = 'Linkdex Limited' ; break ; default : // nothing to do here break ; } return $ maker ; }
docstring: maps the maker of the browser, os, engine or device
  
  @param string|null $maker
  
  @return string|null
docstring_tokens: maps the maker of the browser os engine or device