Fix openssl/pcre matches, and skip other exts properly

src/Composer/Repository/PlatformRepository.php

@@ -80,12 +80,13 @@ class PlatformRepository extends ArrayRepository
                     break;
 
                 case 'openssl':
-                    $prettyVersion = str_replace('OpenSSL', '', OPENSSL_VERSION_TEXT);
-                    $prettyVersion = trim($prettyVersion);
+                    $prettyVersion = preg_replace_callback('{^(?:OpenSSL\s*)?([0-9.]+)([a-z]?).*}', function ($match) {
+                        return $match[1] . (empty($match[2]) ? '' : '.'.(ord($match[2]) - 96));
+                    }, OPENSSL_VERSION_TEXT);
                     break;
 
                 case 'pcre':
-                    $prettyVersion = PCRE_VERSION;
+                    $prettyVersion = preg_replace('{^(\S+).*}', '$1', PCRE_VERSION);
                     break;
 
                 case 'uuid':
@@ -98,7 +99,7 @@ class PlatformRepository extends ArrayRepository
 
                 default:
                     // None handled extensions have no special cases, skip
-                    continue;
+                    continue 2;
             }
 
             try {
@@ -107,9 +108,9 @@ class PlatformRepository extends ArrayRepository
                 continue;
             }
 
-            $ext = new MemoryPackage('lib-'.$name, $version, $prettyVersion);
-            $ext->setDescription('The '.$name.' PHP library');
-            parent::addPackage($ext);
+            $lib = new MemoryPackage('lib-'.$name, $version, $prettyVersion);
+            $lib->setDescription('The '.$name.' PHP library');
+            parent::addPackage($lib);
         }
     }
 }