Merge pull request #10334 from Seldaek/phpstan

PHPStan level 8 with baseline

.github/workflows/phpstan.yml

@@ -51,7 +51,7 @@ jobs:
 
       - name: "Install PHPStan"
         # Locked to phpunit 7.5 here as newer ones have void return types which break inheritance
-        run: "bin/composer require --dev phpstan/phpstan:^1.0 phpstan/phpstan-phpunit:^1.0 phpunit/phpunit:^7.5.20 --with-all-dependencies ${{ env.COMPOSER_FLAGS }}"
+        run: "bin/composer require --dev phpstan/phpstan:^1.0 phpstan/phpstan-phpunit:^1.0 phpstan/phpstan-deprecation-rules:^1 phpstan/phpstan-strict-rules:^1 phpunit/phpunit:^7.5.20 --with-all-dependencies ${{ env.COMPOSER_FLAGS }}"
 
       - name: "Run PHPStan"
         run: "vendor/bin/phpstan analyse --configuration=phpstan/config.neon"

composer.json

@@ -36,7 +36,8 @@
         "symfony/filesystem": "^2.8.52 || ^3.4.35 || ^4.4 || ^5.0 || ^6.0",
         "symfony/finder": "^2.8.52 || ^3.4.35 || ^4.4 || ^5.0 || ^6.0",
         "symfony/process": "^2.8.52 || ^3.4.35 || ^4.4 || ^5.0 || ^6.0",
-        "react/promise": "^1.2 || ^2.7"
+        "react/promise": "^1.2 || ^2.7",
+        "composer/pcre": "^1.0"
     },
     "require-dev": {
         "symfony/phpunit-bridge": "^4.2 || ^5.0 || ^6.0",
@@ -82,7 +83,7 @@
         "phpstan-setup": [
             "@composer config platform --unset",
             "@composer update",
-            "@composer require --dev phpstan/phpstan:^1.0 phpstan/phpstan-phpunit:^1.0 phpunit/phpunit:^7.5.20 --with-all-dependencies",
+            "@composer require --dev phpstan/phpstan:^1.0 phpstan/phpstan-phpunit:^1.0 phpstan/phpstan-deprecation-rules:^1 phpstan/phpstan-strict-rules:^1 phpunit/phpunit:^7.5.20 --with-all-dependencies",
             "git checkout composer.json composer.lock"
         ],
         "phpstan": "@php vendor/bin/phpstan analyse --configuration=phpstan/config.neon"

composer.lock

@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "136c1a25e4f757a3dccb43aa967507f4",
+    "content-hash": "659a81a68363780c2e9fb35a1116808c",
     "packages": [
         {
             "name": "composer/ca-bundle",
@@ -151,6 +151,77 @@
             ],
             "time": "2021-04-07T13:37:33+00:00"
         },
+        {
+            "name": "composer/pcre",
+            "version": "1.0.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/composer/pcre.git",
+                "reference": "3d322d715c43a1ac36c7fe215fa59336265500f2"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/composer/pcre/zipball/3d322d715c43a1ac36c7fe215fa59336265500f2",
+                "reference": "3d322d715c43a1ac36c7fe215fa59336265500f2",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^5.3.2 || ^7.0 || ^8.0"
+            },
+            "require-dev": {
+                "phpstan/phpstan": "^1",
+                "phpstan/phpstan-strict-rules": "^1.1",
+                "symfony/phpunit-bridge": "^4.2 || ^5"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "1.x-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Composer\\Pcre\\": "src"
+                }
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Jordi Boggiano",
+                    "email": "j.boggiano@seld.be",
+                    "homepage": "http://seld.be"
+                }
+            ],
+            "description": "PCRE wrapping library that offers type-safe preg_* replacements.",
+            "keywords": [
+                "PCRE",
+                "preg",
+                "regex",
+                "regular expression"
+            ],
+            "support": {
+                "issues": "https://github.com/composer/pcre/issues",
+                "source": "https://github.com/composer/pcre/tree/1.0.0"
+            },
+            "funding": [
+                {
+                    "url": "https://packagist.com",
+                    "type": "custom"
+                },
+                {
+                    "url": "https://github.com/composer",
+                    "type": "github"
+                },
+                {
+                    "url": "https://tidelift.com/funding/github/packagist/composer/composer",
+                    "type": "tidelift"
+                }
+            ],
+            "time": "2021-12-06T15:17:27+00:00"
+        },
         {
             "name": "composer/semver",
             "version": "3.2.6",

phpstan/config.neon

@@ -1,15 +1,19 @@
 includes:
     - ../vendor/phpstan/phpstan-phpunit/extension.neon
+    - ../vendor/phpstan/phpstan-deprecation-rules/rules.neon
+    - ../vendor/phpstan/phpstan-strict-rules/rules.neon
     - ./baseline.neon
 
 parameters:
-    level: 6
+    level: 8
 
     excludePaths:
        - '../tests/Composer/Test/Fixtures/*'
        - '../tests/Composer/Test/Autoload/Fixtures/*'
        - '../tests/Composer/Test/Plugin/Fixtures/*'
        - '../tests/Composer/Test/PolyfillTestCase.php'
+       # TODO Remove in 2.3
+       - '../src/Composer/Console/HtmlOutputFormatter.php'
 
     reportUnmatchedIgnoredErrors: false
 
@@ -43,6 +47,10 @@ parameters:
         - '~Method Composer\\Test\\[^:]+::(setUp(BeforeClass)?|tearDown(AfterClass)?|test[^(]+)\(\) has no return type specified.~'
         - '~Method Composer\\Test\\[^:]+::(data\w+|provide\w+|\w+?Provider)\(\) has no return type specified.~'
 
+        # PHPUnit assertions as instance methods
+        - '~Dynamic call to static method PHPUnit\\Framework\\Assert::\w+\(\)~'
+        - '~Dynamic call to static method PHPUnit\\Framework\\TestCase::(once|at|exactly|will|exactly|returnValue|returnCallback|any|atLeastOnce|throwException|onConsecutiveCalls|never|returnValueMap)\(\)~'
+
     bootstrapFiles:
         - ../tests/bootstrap.php
 

src/Composer/Autoload/AutoloadGenerator.php

@@ -22,6 +22,7 @@ use Composer\IO\IOInterface;
 use Composer\Package\AliasPackage;
 use Composer\Package\PackageInterface;
 use Composer\Package\RootPackageInterface;
+use Composer\Pcre\Preg;
 use Composer\Repository\InstalledRepositoryInterface;
 use Composer\Semver\Constraint\Bound;
 use Composer\Util\Filesystem;
@@ -375,7 +376,7 @@ EOF;
         if (!$suffix) {
             if (!$config->get('autoloader-suffix') && Filesystem::isReadable($vendorPath.'/autoload.php')) {
                 $content = file_get_contents($vendorPath.'/autoload.php');
-                if (preg_match('{ComposerAutoloaderInit([^:\s]+)::}', $content, $match)) {
+                if (Preg::isMatch('{ComposerAutoloaderInit([^:\s]+)::}', $content, $match)) {
                     $suffix = $match[1];
                 }
             }
@@ -447,7 +448,7 @@ EOF;
             $pathCode = $this->getPathCode($filesystem, $basePath, $vendorPath, $path).",\n";
             if (!isset($classMap[$class])) {
                 $classMap[$class] = $pathCode;
-            } elseif ($this->io && $classMap[$class] !== $pathCode && !preg_match('{/(test|fixture|example|stub)s?/}i', strtr($classMap[$class].' '.$path, '\\', '/'))) {
+            } elseif ($this->io && $classMap[$class] !== $pathCode && !Preg::isMatch('{/(test|fixture|example|stub)s?/}i', strtr($classMap[$class].' '.$path, '\\', '/'))) {
                 $ambiguousClasses[$class][] = $path;
             }
         }
@@ -475,7 +476,7 @@ EOF;
                 $dirMatch = preg_quote(strtr(realpath($dir), '\\', '/'));
                 foreach ($excluded as $index => $pattern) {
                     // extract the constant string prefix of the pattern here, until we reach a non-escaped regex special character
-                    $pattern = preg_replace('{^(([^.+*?\[^\]$(){}=!<>|:\\\\#-]+|\\\\[.+*?\[^\]$(){}=!<>|:#-])*).*}', '$1', $pattern);
+                    $pattern = Preg::replace('{^(([^.+*?\[^\]$(){}=!<>|:\\\\#-]+|\\\\[.+*?\[^\]$(){}=!<>|:#-])*).*}', '$1', $pattern);
                     // if the pattern is not a subset or superset of $dir, it is unrelated and we skip it
                     if (0 !== strpos($pattern, $dirMatch) && 0 !== strpos($dirMatch, $pattern)) {
                         unset($excluded[$index]);
@@ -757,7 +758,7 @@ EOF;
         foreach ($packageMap as $item) {
             $package = $item[0];
             foreach (array_merge($package->getReplaces(), $package->getProvides()) as $link) {
-                if (preg_match('{^ext-(.+)$}iD', $link->getTarget(), $match)) {
+                if (Preg::isMatch('{^ext-(.+)$}iD', $link->getTarget(), $match)) {
                     $extensionProviders[$match[1]][] = $link->getConstraint();
                 }
             }
@@ -782,7 +783,7 @@ EOF;
                     }
                 }
 
-                if ($checkPlatform === true && preg_match('{^ext-(.+)$}iD', $link->getTarget(), $match)) {
+                if ($checkPlatform === true && Preg::isMatch('{^ext-(.+)$}iD', $link->getTarget(), $match)) {
                     // skip extension checks if they have a valid provider/replacer
                     if (isset($extensionProviders[$match[1]])) {
                         foreach ($extensionProviders[$match[1]] as $provided) {
@@ -1204,7 +1205,7 @@ HEADER;
                     $absoluteAppBaseDirPharCode => $appBaseDirPharCode,
                 )
             );
-            $value = ltrim(preg_replace('/^ */m', '    $0$0', $value));
+            $value = ltrim(Preg::replace('/^ */m', '    $0$0', $value));
 
             $file .= sprintf("    public static $%s = %s;\n\n", $prop, $value);
             if ('files' !== $prop) {
@@ -1255,7 +1256,7 @@ INITIALIZER;
                         // remove target-dir from file paths of the root package
                         if ($package === $rootPackage) {
                             $targetDir = str_replace('\\<dirsep\\>', '[\\\\/]', preg_quote(str_replace(array('/', '\\'), '<dirsep>', $package->getTargetDir())));
-                            $path = ltrim(preg_replace('{^'.$targetDir.'}', '', ltrim($path, '\\/')), '\\/');
+                            $path = ltrim(Preg::replace('{^'.$targetDir.'}', '', ltrim($path, '\\/')), '\\/');
                         } else {
                             // add target-dir from file paths that don't have it
                             $path = $package->getTargetDir() . '/' . $path;
@@ -1264,14 +1265,14 @@ INITIALIZER;
 
                     if ($type === 'exclude-from-classmap') {
                         // first escape user input
-                        $path = preg_replace('{/+}', '/', preg_quote(trim(strtr($path, '\\', '/'), '/')));
+                        $path = Preg::replace('{/+}', '/', preg_quote(trim(strtr($path, '\\', '/'), '/')));
 
                         // add support for wildcards * and **
                         $path = strtr($path, array('\\*\\*' => '.+?', '\\*' => '[^/]+?'));
 
                         // add support for up-level relative paths
                         $updir = null;
-                        $path = preg_replace_callback(
+                        $path = Preg::replaceCallback(
                             '{^((?:(?:\\\\\\.){1,2}+/)+)}',
                             function ($matches) use (&$updir) {
                                 if (isset($matches[1])) {

src/Composer/Autoload/ClassMapGenerator.php

@@ -18,6 +18,7 @@
 
 namespace Composer\Autoload;
 
+use Composer\Pcre\Preg;
 use Symfony\Component\Finder\Finder;
 use Composer\IO\IOInterface;
 use Composer\Util\Filesystem;
@@ -92,7 +93,7 @@ class ClassMapGenerator
                 $filePath = $cwd . '/' . $filePath;
                 $filePath = $filesystem->normalizePath($filePath);
             } else {
-                $filePath = preg_replace('{[\\\\/]{2,}}', '/', $filePath);
+                $filePath = Preg::replace('{[\\\\/]{2,}}', '/', $filePath);
             }
 
             $realPath = realpath($filePath);
@@ -104,11 +105,11 @@ class ClassMapGenerator
             }
 
             // check the realpath of the file against the excluded paths as the path might be a symlink and the excluded path is realpath'd so symlink are resolved
-            if ($excluded && preg_match($excluded, strtr($realPath, '\\', '/'))) {
+            if ($excluded && Preg::isMatch($excluded, strtr($realPath, '\\', '/'))) {
                 continue;
             }
             // check non-realpath of file for directories symlink in project dir
-            if ($excluded && preg_match($excluded, strtr($filePath, '\\', '/'))) {
+            if ($excluded && Preg::isMatch($excluded, strtr($filePath, '\\', '/'))) {
                 continue;
             }
 
@@ -133,7 +134,7 @@ class ClassMapGenerator
 
                 if (!isset($map[$class])) {
                     $map[$class] = $filePath;
-                } elseif ($io && $map[$class] !== $filePath && !preg_match('{/(test|fixture|example|stub)s?/}i', strtr($map[$class].' '.$filePath, '\\', '/'))) {
+                } elseif ($io && $map[$class] !== $filePath && !Preg::isMatch('{/(test|fixture|example|stub)s?/}i', strtr($map[$class].' '.$filePath, '\\', '/'))) {
                     $io->writeError(
                         '<warning>Warning: Ambiguous class resolution, "'.$class.'"'.
                         ' was found in both "'.$map[$class].'" and "'.$filePath.'", the first will be used.</warning>'
@@ -196,7 +197,7 @@ class ClassMapGenerator
         if (empty($validClasses)) {
             foreach ($rejectedClasses as $class) {
                 if ($io) {
-                    $io->writeError("<warning>Class $class located in ".preg_replace('{^'.preg_quote(getcwd()).'}', '.', $filePath, 1)." does not comply with $namespaceType autoloading standard. Skipping.</warning>");
+                    $io->writeError("<warning>Class $class located in ".Preg::replace('{^'.preg_quote(getcwd()).'}', '.', $filePath, 1)." does not comply with $namespaceType autoloading standard. Skipping.</warning>");
                 }
             }
 
@@ -239,7 +240,7 @@ class ClassMapGenerator
         }
 
         // return early if there is no chance of matching anything in this file
-        preg_match_all('{\b(?:class|interface'.$extraTypes.')\s}i', $contents, $matches);
+        Preg::matchAll('{\b(?:class|interface'.$extraTypes.')\s}i', $contents, $matches);
         if (!$matches) {
             return array();
         }
@@ -248,7 +249,7 @@ class ClassMapGenerator
         $contents = $p->clean();
         unset($p);
 
-        preg_match_all('{
+        Preg::matchAll('{
             (?:
                  \b(?<![\$:>])(?P<type>class|interface'.$extraTypes.') \s++ (?P<name>[a-zA-Z_\x7f-\xff:][a-zA-Z0-9_\x7f-\xff:\-]*+)
                | \b(?<![\$:>])(?P<ns>namespace) (?P<nsname>\s++[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*+(?:\s*+\\\\\s*+[a-zA-Z_\x7f-\xff][a-zA-Z0-9_\x7f-\xff]*+)*+)? \s*+ [\{;]

src/Composer/Autoload/PhpFileCleaner.php

@@ -12,6 +12,8 @@
 
 namespace Composer\Autoload;
 
+use Composer\Pcre\Preg;
+
 /**
  * @author Jordi Boggiano <j.boggiano@seld.be>
  * @internal
@@ -125,7 +127,7 @@ class PhpFileCleaner
                     $type = self::$typeConfig[$char];
                     if (
                         \substr($this->contents, $this->index, $type['length']) === $type['name']
-                        && \preg_match($type['pattern'], $this->contents, $match, 0, $this->index - 1)
+                        && Preg::isMatch($type['pattern'], $this->contents, $match, 0, $this->index - 1)
                     ) {
                         $clean .= $match[0];
 
@@ -269,10 +271,6 @@ class PhpFileCleaner
      */
     private function match($regex, array &$match = null)
     {
-        if (\preg_match($regex, $this->contents, $match, 0, $this->index)) {
+        return Preg::isMatch($regex, $this->contents, $match, 0, $this->index);
-            return true;
-        }
-
-        return false;
     }
 }

src/Composer/Cache.php

@@ -13,6 +13,7 @@
 namespace Composer;
 
 use Composer\IO\IOInterface;
+use Composer\Pcre\Preg;
 use Composer\Util\Filesystem;
 use Composer\Util\Platform;
 use Composer\Util\Silencer;
@@ -85,7 +86,7 @@ class Cache
      */
     public static function isUsable($path)
     {
-        return !preg_match('{(^|[\\\\/])(\$null|nul|NUL|/dev/null)([\\\\/]|$)}', $path);
+        return !Preg::isMatch('{(^|[\\\\/])(\$null|nul|NUL|/dev/null)([\\\\/]|$)}', $path);
     }
 
     /**
@@ -124,7 +125,7 @@ class Cache
     public function read($file)
     {
         if ($this->isEnabled()) {
-            $file = preg_replace('{[^'.$this->allowlist.']}i', '-', $file);
+            $file = Preg::replace('{[^'.$this->allowlist.']}i', '-', $file);
             if (file_exists($this->root . $file)) {
                 $this->io->writeError('Reading '.$this->root . $file.' from cache', true, IOInterface::DEBUG);
 
@@ -144,7 +145,7 @@ class Cache
     public function write($file, $contents)
     {
         if ($this->isEnabled() && !$this->readOnly) {
-            $file = preg_replace('{[^'.$this->allowlist.']}i', '-', $file);
+            $file = Preg::replace('{[^'.$this->allowlist.']}i', '-', $file);
 
             $this->io->writeError('Writing '.$this->root . $file.' into cache', true, IOInterface::DEBUG);
 
@@ -153,7 +154,7 @@ class Cache
                 return file_put_contents($tempFileName, $contents) !== false && rename($tempFileName, $this->root . $file);
             } catch (\ErrorException $e) {
                 $this->io->writeError('<warning>Failed to write into cache: '.$e->getMessage().'</warning>', true, IOInterface::DEBUG);
-                if (preg_match('{^file_put_contents\(\): Only ([0-9]+) of ([0-9]+) bytes written}', $e->getMessage(), $m)) {
+                if (Preg::isMatch('{^file_put_contents\(\): Only ([0-9]+) of ([0-9]+) bytes written}', $e->getMessage(), $m)) {
                     // Remove partial file.
                     unlink($tempFileName);
 
@@ -188,7 +189,7 @@ class Cache
     public function copyFrom($file, $source)
     {
         if ($this->isEnabled() && !$this->readOnly) {
-            $file = preg_replace('{[^'.$this->allowlist.']}i', '-', $file);
+            $file = Preg::replace('{[^'.$this->allowlist.']}i', '-', $file);
             $this->filesystem->ensureDirectoryExists(dirname($this->root . $file));
 
             if (!file_exists($source)) {
@@ -214,7 +215,7 @@ class Cache
     public function copyTo($file, $target)
     {
         if ($this->isEnabled()) {
-            $file = preg_replace('{[^'.$this->allowlist.']}i', '-', $file);
+            $file = Preg::replace('{[^'.$this->allowlist.']}i', '-', $file);
             if (file_exists($this->root . $file)) {
                 try {
                     touch($this->root . $file, filemtime($this->root . $file), time());
@@ -262,7 +263,7 @@ class Cache
     public function remove($file)
     {
         if ($this->isEnabled()) {
-            $file = preg_replace('{[^'.$this->allowlist.']}i', '-', $file);
+            $file = Preg::replace('{[^'.$this->allowlist.']}i', '-', $file);
             if (file_exists($this->root . $file)) {
                 return $this->filesystem->unlink($this->root . $file);
             }
@@ -329,7 +330,7 @@ class Cache
     public function sha1($file)
     {
         if ($this->isEnabled()) {
-            $file = preg_replace('{[^'.$this->allowlist.']}i', '-', $file);
+            $file = Preg::replace('{[^'.$this->allowlist.']}i', '-', $file);
             if (file_exists($this->root . $file)) {
                 return sha1_file($this->root . $file);
             }
@@ -346,7 +347,7 @@ class Cache
     public function sha256($file)
     {
         if ($this->isEnabled()) {
-            $file = preg_replace('{[^'.$this->allowlist.']}i', '-', $file);
+            $file = Preg::replace('{[^'.$this->allowlist.']}i', '-', $file);
             if (file_exists($this->root . $file)) {
                 return hash_file('sha256', $this->root . $file);
             }

src/Composer/Command/ConfigCommand.php

@@ -12,6 +12,7 @@
 
 namespace Composer\Command;
 
+use Composer\Pcre\Preg;
 use Composer\Util\Filesystem;
 use Composer\Util\Platform;
 use Composer\Util\Silencer;
@@ -261,7 +262,7 @@ EOT
             $properties = array('name', 'type', 'description', 'homepage', 'version', 'minimum-stability', 'prefer-stable', 'keywords', 'license', 'extra');
             $rawData = $this->configFile->read();
             $data = $this->config->all();
-            if (preg_match('/^repos?(?:itories)?(?:\.(.+))?/', $settingKey, $matches)) {
+            if (Preg::isMatch('/^repos?(?:itories)?(?:\.(.+))?/', $settingKey, $matches)) {
                 if (!isset($matches[1]) || $matches[1] === '') {
                     $value = isset($data['repositories']) ? $data['repositories'] : array();
                 } else {
@@ -390,7 +391,7 @@ EOT
             'cache-files-ttl' => array('is_numeric', 'intval'),
             'cache-files-maxsize' => array(
                 function ($val) {
-                    return preg_match('/^\s*([0-9.]+)\s*(?:([kmg])(?:i?b)?)?\s*$/i', $val) > 0;
+                    return Preg::isMatch('/^\s*([0-9.]+)\s*(?:([kmg])(?:i?b)?)?\s*$/i', $val);
                 },
                 function ($val) {
                     return $val;
@@ -535,7 +536,7 @@ EOT
             return 0;
         }
         // handle preferred-install per-package config
-        if (preg_match('/^preferred-install\.(.+)/', $settingKey, $matches)) {
+        if (Preg::isMatch('/^preferred-install\.(.+)/', $settingKey, $matches)) {
             if ($input->getOption('unset')) {
                 $this->configSource->removeConfigSetting($settingKey);
 
@@ -626,7 +627,7 @@ EOT
         }
 
         // handle repositories
-        if (preg_match('/^repos?(?:itories)?\.(.+)/', $settingKey, $matches)) {
+        if (Preg::isMatch('/^repos?(?:itories)?\.(.+)/', $settingKey, $matches)) {
             if ($input->getOption('unset')) {
                 $this->configSource->removeRepository($matches[1]);
 
@@ -662,7 +663,7 @@ EOT
         }
 
         // handle extra
-        if (preg_match('/^extra\.(.+)/', $settingKey, $matches)) {
+        if (Preg::isMatch('/^extra\.(.+)/', $settingKey, $matches)) {
             if ($input->getOption('unset')) {
                 $this->configSource->removeProperty($settingKey);
 
@@ -689,7 +690,7 @@ EOT
         }
 
         // handle suggest
-        if (preg_match('/^suggest\.(.+)/', $settingKey, $matches)) {
+        if (Preg::isMatch('/^suggest\.(.+)/', $settingKey, $matches)) {
             if ($input->getOption('unset')) {
                 $this->configSource->removeProperty($settingKey);
 
@@ -709,7 +710,7 @@ EOT
         }
 
         // handle platform
-        if (preg_match('/^platform\.(.+)/', $settingKey, $matches)) {
+        if (Preg::isMatch('/^platform\.(.+)/', $settingKey, $matches)) {
             if ($input->getOption('unset')) {
                 $this->configSource->removeConfigSetting($settingKey);
 
@@ -729,7 +730,7 @@ EOT
         }
 
         // handle auth
-        if (preg_match('/^(bitbucket-oauth|github-oauth|gitlab-oauth|gitlab-token|http-basic|bearer)\.(.+)/', $settingKey, $matches)) {
+        if (Preg::isMatch('/^(bitbucket-oauth|github-oauth|gitlab-oauth|gitlab-token|http-basic|bearer)\.(.+)/', $settingKey, $matches)) {
             if ($input->getOption('unset')) {
                 $this->authConfigSource->removeConfigSetting($matches[1].'.'.$matches[2]);
                 $this->configSource->removeConfigSetting($matches[1].'.'.$matches[2]);
@@ -764,7 +765,7 @@ EOT
         }
 
         // handle script
-        if (preg_match('/^scripts\.(.+)/', $settingKey, $matches)) {
+        if (Preg::isMatch('/^scripts\.(.+)/', $settingKey, $matches)) {
             if ($input->getOption('unset')) {
                 $this->configSource->removeProperty($settingKey);
 
@@ -857,7 +858,7 @@ EOT
             $rawVal = isset($rawContents[$key]) ? $rawContents[$key] : null;
 
             if (is_array($value) && (!is_numeric(key($value)) || ($key === 'repositories' && null === $k))) {
-                $k .= preg_replace('{^config\.}', '', $key . '.');
+                $k .= Preg::replace('{^config\.}', '', $key . '.');
                 $this->listConfiguration($value, $rawVal, $output, $k, $showSource);
                 $k = $origK;
 

src/Composer/Command/CreateProjectCommand.php

@@ -25,6 +25,7 @@ use Composer\Package\BasePackage;
 use Composer\DependencyResolver\Operation\InstallOperation;
 use Composer\Package\Version\VersionSelector;
 use Composer\Package\AliasPackage;
+use Composer\Pcre\Preg;
 use Composer\Repository\RepositoryFactory;
 use Composer\Repository\CompositeRepository;
 use Composer\Repository\PlatformRepository;
@@ -390,7 +391,7 @@ EOT
         if (null === $stability) {
             if (null === $packageVersion) {
                 $stability = 'stable';
-            } elseif (preg_match('{^[^,\s]*?@('.implode('|', array_keys(BasePackage::$stabilities)).')$}i', $packageVersion, $match)) {
+            } elseif (Preg::isMatch('{^[^,\s]*?@('.implode('|', array_keys(BasePackage::$stabilities)).')$}i', $packageVersion, $match)) {
                 $stability = $match[1];
             } else {
                 $stability = VersionParser::parseStability($packageVersion);

src/Composer/Command/DiagnoseCommand.php

@@ -16,6 +16,7 @@ use Composer\Composer;
 use Composer\Factory;
 use Composer\Config;
 use Composer\Downloader\TransportException;
+use Composer\Pcre\Preg;
 use Composer\Repository\PlatformRepository;
 use Composer\Plugin\CommandEvent;
 use Composer\Plugin\PluginEvents;
@@ -579,7 +580,7 @@ EOT
         ob_start();
         phpinfo(INFO_GENERAL);
         $phpinfo = ob_get_clean();
-        if (preg_match('{Configure Command(?: *</td><td class="v">| *=> *)(.*?)(?:</td>|$)}m', $phpinfo, $match)) {
+        if (Preg::isMatch('{Configure Command(?: *</td><td class="v">| *=> *)(.*?)(?:</td>|$)}m', $phpinfo, $match)) {
             $configure = $match[1];
 
             if (false !== strpos($configure, '--enable-sigchild')) {

src/Composer/Command/FundCommand.php

@@ -16,6 +16,7 @@ use Composer\Json\JsonFile;
 use Composer\Package\AliasPackage;
 use Composer\Package\BasePackage;
 use Composer\Package\CompletePackageInterface;
+use Composer\Pcre\Preg;
 use Composer\Repository\CompositeRepository;
 use Composer\Semver\Constraint\MatchAllConstraint;
 use Symfony\Component\Console\Input\InputInterface;
@@ -144,7 +145,7 @@ class FundCommand extends BaseCommand
                 continue;
             }
             $url = $fundingOption['url'];
-            if (!empty($fundingOption['type']) && $fundingOption['type'] === 'github' && preg_match('{^https://github.com/([^/]+)$}', $url, $match)) {
+            if (!empty($fundingOption['type']) && $fundingOption['type'] === 'github' && Preg::isMatch('{^https://github.com/([^/]+)$}', $url, $match)) {
                 $url = 'https://github.com/sponsors/'.$match[1];
             }
             $fundings[$vendor][$url][] = $packageName;

src/Composer/Command/GlobalCommand.php

@@ -13,6 +13,7 @@
 namespace Composer\Command;
 
 use Composer\Factory;
+use Composer\Pcre\Preg;
 use Composer\Util\Filesystem;
 use Composer\Util\Platform;
 use Symfony\Component\Console\Input\InputInterface;
@@ -71,7 +72,7 @@ EOT
         }
 
         // extract real command name
-        $tokens = preg_split('{\s+}', $input->__toString());
+        $tokens = Preg::split('{\s+}', $input->__toString());
         $args = array();
         foreach ($tokens as $token) {
             if ($token && $token[0] !== '-') {
@@ -112,7 +113,7 @@ EOT
         $this->getIO()->writeError('<info>Changed current directory to '.$home.'</info>');
 
         // create new input without "global" command prefix
-        $input = new StringInput(preg_replace('{\bg(?:l(?:o(?:b(?:a(?:l)?)?)?)?)?\b}', '', $input->__toString(), 1));
+        $input = new StringInput(Preg::replace('{\bg(?:l(?:o(?:b(?:a(?:l)?)?)?)?)?\b}', '', $input->__toString(), 1));
         $this->getApplication()->resetComposer();
 
         return $this->getApplication()->run($input, $output);

src/Composer/Command/InitCommand.php

@@ -23,6 +23,7 @@ use Composer\Package\Package;
 use Composer\Package\PackageInterface;
 use Composer\Package\Version\VersionParser;
 use Composer\Package\Version\VersionSelector;
+use Composer\Pcre\Preg;
 use Composer\Repository\CompositeRepository;
 use Composer\Repository\PlatformRepository;
 use Composer\Repository\RepositoryFactory;
@@ -104,7 +105,7 @@ EOT
         $allowlist = array('name', 'description', 'author', 'type', 'homepage', 'require', 'require-dev', 'stability', 'license', 'autoload');
         $options = array_filter(array_intersect_key($input->getOptions(), array_flip($allowlist)));
 
-        if (isset($options['name']) && !preg_match('{^[a-z0-9_.-]+/[a-z0-9_.-]+$}D', $options['name'])) {
+        if (isset($options['name']) && !Preg::isMatch('{^[a-z0-9_.-]+/[a-z0-9_.-]+$}D', $options['name'])) {
             throw new \InvalidArgumentException(
                 'The package name '.$options['name'].' is invalid, it should be lowercase and have a vendor name, a forward slash, and a package name, matching: [a-z0-9_.-]+/[a-z0-9_.-]+'
             );
@@ -283,7 +284,7 @@ EOT
 
         if (!$name = $input->getOption('name')) {
             $name = basename($cwd);
-            $name = preg_replace('{(?:([a-z])([A-Z])|([A-Z])([A-Z][a-z]))}', '\\1\\3-\\2\\4', $name);
+            $name = Preg::replace('{(?:([a-z])([A-Z])|([A-Z])([A-Z][a-z]))}', '\\1\\3-\\2\\4', $name);
             $name = strtolower($name);
             if (!empty($_SERVER['COMPOSER_DEFAULT_VENDOR'])) {
                 $name = $_SERVER['COMPOSER_DEFAULT_VENDOR'] . '/' . $name;
@@ -309,7 +310,7 @@ EOT
                     return $name;
                 }
 
-                if (!preg_match('{^[a-z0-9_.-]+/[a-z0-9_.-]+$}D', $value)) {
+                if (!Preg::isMatch('{^[a-z0-9_.-]+/[a-z0-9_.-]+$}D', $value)) {
                     throw new \InvalidArgumentException(
                         'The package name '.$value.' is invalid, it should be lowercase and have a vendor name, a forward slash, and a package name, matching: [a-z0-9_.-]+/[a-z0-9_.-]+'
                     );
@@ -452,7 +453,7 @@ EOT
 
                 $value = $value ?: $autoload;
 
-                if (!preg_match('{^[^/][A-Za-z0-9\-_/]+/$}', $value)) {
+                if (!Preg::isMatch('{^[^/][A-Za-z0-9\-_/]+/$}', $value)) {
                     throw new \InvalidArgumentException(sprintf(
                         'The src folder name "%s" is invalid. Please add a relative path with tailing forward slash. [A-Za-z0-9_-/]+/',
                         $value
@@ -474,7 +475,7 @@ EOT
      */
     public function parseAuthorString($author)
     {
-        if (preg_match('/^(?P<name>[- .,\p{L}\p{N}\p{Mn}\'’"()]+) <(?P<email>.+?)>$/u', $author, $match)) {
+        if (Preg::isMatch('/^(?P<name>[- .,\p{L}\p{N}\p{Mn}\'’"()]+) <(?P<email>.+?)>$/u', $author, $match)) {
             if ($this->isValidEmail($match['email'])) {
                 return array(
                     'name' => trim($match['name']),
@@ -617,7 +618,7 @@ EOT
                             return $package['name'];
                         }
 
-                        if (preg_match('{^\s*(?P<name>[\S/]+)(?:\s+(?P<version>\S+))?\s*$}', $selection, $packageMatches)) {
+                        if (Preg::isMatch('{^\s*(?P<name>[\S/]+)(?:\s+(?P<version>\S+))?\s*$}', $selection, $packageMatches)) {
                             if (isset($packageMatches['version'])) {
                                 // parsing `acme/example ~2.3`
 
@@ -707,7 +708,7 @@ EOT
 
         $namespace = array_map(
             function ($part) {
-                $part = preg_replace('/[^a-z0-9]/i', ' ', $part);
+                $part = Preg::replace('/[^a-z0-9]/i', ' ', $part);
                 $part = ucwords($part);
 
                 return str_replace(' ', '', $part);
@@ -741,9 +742,9 @@ EOT
 
         if ($cmd->isSuccessful()) {
             $this->gitConfig = array();
-            preg_match_all('{^([^=]+)=(.*)$}m', $cmd->getOutput(), $matches, PREG_SET_ORDER);
+            Preg::matchAll('{^([^=]+)=(.*)$}m', $cmd->getOutput(), $matches);
-            foreach ($matches as $match) {
+            foreach ($matches[1] as $key => $match) {
-                $this->gitConfig[$match[1]] = $match[2];
+                $this->gitConfig[$match] = $matches[2][$key];
             }
 
             return $this->gitConfig;
@@ -778,7 +779,7 @@ EOT
 
         $lines = file($ignoreFile, FILE_IGNORE_NEW_LINES);
         foreach ($lines as $line) {
-            if (preg_match($pattern, $line)) {
+            if (Preg::isMatch($pattern, $line)) {
                 return true;
             }
         }

src/Composer/Command/ReinstallCommand.php

@@ -18,6 +18,7 @@ use Composer\DependencyResolver\Transaction;
 use Composer\Filter\PlatformRequirementFilter\PlatformRequirementFilterFactory;
 use Composer\Package\AliasPackage;
 use Composer\Package\BasePackage;
+use Composer\Pcre\Preg;
 use Composer\Plugin\CommandEvent;
 use Composer\Plugin\PluginEvents;
 use Symfony\Component\Console\Input\InputInterface;
@@ -82,7 +83,7 @@ EOT
             $patternRegexp = BasePackage::packageNameToRegexp($pattern);
             $matched = false;
             foreach ($localRepo->getCanonicalPackages() as $package) {
-                if (preg_match($patternRegexp, $package->getName())) {
+                if (Preg::isMatch($patternRegexp, $package->getName())) {
                     $matched = true;
                     $packagesToReinstall[] = $package;
                     $packageNamesToReinstall[] = $package->getName();

src/Composer/Command/RemoveCommand.php

@@ -16,6 +16,7 @@ use Composer\Config\JsonConfigSource;
 use Composer\DependencyResolver\Request;
 use Composer\Filter\PlatformRequirementFilter\PlatformRequirementFilterFactory;
 use Composer\Installer;
+use Composer\Pcre\Preg;
 use Composer\Plugin\CommandEvent;
 use Composer\Plugin\PluginEvents;
 use Composer\Json\JsonFile;
@@ -178,7 +179,7 @@ EOT
                         }
                     }
                 }
-            } elseif (isset($composer[$type]) && $matches = preg_grep(BasePackage::packageNameToRegexp($package), array_keys($composer[$type]))) {
+            } elseif (isset($composer[$type]) && $matches = Preg::grep(BasePackage::packageNameToRegexp($package), array_keys($composer[$type]))) {
                 foreach ($matches as $matchedPackage) {
                     if ($dryRun) {
                         $toRemove[$type][] = $matchedPackage;
@@ -186,7 +187,7 @@ EOT
                         $json->removeLink($type, $matchedPackage);
                     }
                 }
-            } elseif (isset($composer[$altType]) && $matches = preg_grep(BasePackage::packageNameToRegexp($package), array_keys($composer[$altType]))) {
+            } elseif (isset($composer[$altType]) && $matches = Preg::grep(BasePackage::packageNameToRegexp($package), array_keys($composer[$altType]))) {
                 foreach ($matches as $matchedPackage) {
                     $io->writeError('<warning>' . $matchedPackage . ' could not be found in ' . $type . ' but it is present in ' . $altType . '</warning>');
                     if ($io->isInteractive()) {

src/Composer/Command/SelfUpdateCommand.php

@@ -15,6 +15,7 @@ namespace Composer\Command;
 use Composer\Composer;
 use Composer\Factory;
 use Composer\Config;
+use Composer\Pcre\Preg;
 use Composer\Util\Filesystem;
 use Composer\Util\Platform;
 use Composer\SelfUpdate\Keys;
@@ -157,9 +158,9 @@ EOT
         }
         $latestVersion = $latest['version'];
         $updateVersion = $input->getArgument('version') ?: $latestVersion;
-        $currentMajorVersion = preg_replace('{^(\d+).*}', '$1', Composer::getVersion());
+        $currentMajorVersion = Preg::replace('{^(\d+).*}', '$1', Composer::getVersion());
-        $updateMajorVersion = preg_replace('{^(\d+).*}', '$1', $updateVersion);
+        $updateMajorVersion = Preg::replace('{^(\d+).*}', '$1', $updateVersion);
-        $previewMajorVersion = preg_replace('{^(\d+).*}', '$1', $latestPreview['version']);
+        $previewMajorVersion = Preg::replace('{^(\d+).*}', '$1', $latestPreview['version']);
 
         if ($versionsUtil->getChannel() === 'stable' && !$input->getArgument('version')) {
             // if requesting stable channel and no specific version, avoid automatically upgrading to the next major
@@ -185,7 +186,7 @@ EOT
             $io->writeError('<warning>Warning: You forced the install of '.$latestVersion.' via --'.$requestedChannel.', but '.$latestStable['version'].' is the latest stable version. Updating to it via composer self-update --stable is recommended.</warning>');
         }
 
-        if (preg_match('{^[0-9a-f]{40}$}', $updateVersion) && $updateVersion !== $latestVersion) {
+        if (Preg::isMatch('{^[0-9a-f]{40}$}', $updateVersion) && $updateVersion !== $latestVersion) {
             $io->writeError('<error>You can not update to a specific SHA-1 as those phars are not available for download</error>');
 
             return 1;
@@ -218,11 +219,11 @@ EOT
             '%s/%s-%s%s',
             $rollbackDir,
             strtr(Composer::RELEASE_DATE, ' :', '_-'),
-            preg_replace('{^([0-9a-f]{7})[0-9a-f]{33}$}', '$1', Composer::VERSION),
+            Preg::replace('{^([0-9a-f]{7})[0-9a-f]{33}$}', '$1', Composer::VERSION),
             self::OLD_INSTALL_EXT
         );
 
-        $updatingToTag = !preg_match('{^[0-9a-f]{40}$}', $updateVersion);
+        $updatingToTag = !Preg::isMatch('{^[0-9a-f]{40}$}', $updateVersion);
 
         $io->write(sprintf("Upgrading to version <info>%s</info> (%s channel).", $updateVersion, $channelString));
         $remoteFilename = $baseUrl . ($updatingToTag ? "/download/{$updateVersion}/composer.phar" : '/composer.phar');
@@ -351,7 +352,7 @@ TAGSPUBKEY
         $io->write('Open <info>https://composer.github.io/pubkeys.html</info> to find the latest keys');
 
         $validator = function ($value) {
-            if (!preg_match('{^-----BEGIN PUBLIC KEY-----$}', trim($value))) {
+            if (!Preg::isMatch('{^-----BEGIN PUBLIC KEY-----$}', trim($value))) {
                 throw new \UnexpectedValueException('Invalid input');
             }
 
@@ -359,7 +360,7 @@ TAGSPUBKEY
         };
 
         $devKey = '';
-        while (!preg_match('{(-----BEGIN PUBLIC KEY-----.+?-----END PUBLIC KEY-----)}s', $devKey, $match)) {
+        while (!Preg::isMatch('{(-----BEGIN PUBLIC KEY-----.+?-----END PUBLIC KEY-----)}s', $devKey, $match)) {
             $devKey = $io->askAndValidate('Enter Dev / Snapshot Public Key (including lines with -----): ', $validator);
             while ($line = $io->ask('')) {
                 $devKey .= trim($line)."\n";
@@ -372,7 +373,7 @@ TAGSPUBKEY
         $io->write('Stored key with fingerprint: ' . Keys::fingerprint($keyPath));
 
         $tagsKey = '';
-        while (!preg_match('{(-----BEGIN PUBLIC KEY-----.+?-----END PUBLIC KEY-----)}s', $tagsKey, $match)) {
+        while (!Preg::isMatch('{(-----BEGIN PUBLIC KEY-----.+?-----END PUBLIC KEY-----)}s', $tagsKey, $match)) {
             $tagsKey = $io->askAndValidate('Enter Tags Public Key (including lines with -----): ', $validator);
             while ($line = $io->ask('')) {
                 $tagsKey .= trim($line)."\n";

src/Composer/Command/ShowCommand.php

@@ -24,6 +24,7 @@ use Composer\Package\Package;
 use Composer\Package\PackageInterface;
 use Composer\Package\Version\VersionParser;
 use Composer\Package\Version\VersionSelector;
+use Composer\Pcre\Preg;
 use Composer\Plugin\CommandEvent;
 use Composer\Plugin\PluginEvents;
 use Composer\Repository\InstalledArrayRepository;
@@ -364,7 +365,7 @@ EOT
                         while ($package instanceof AliasPackage) {
                             $package = $package->getAliasOf();
                         }
-                        if (!$packageFilterRegex || preg_match($packageFilterRegex, $package->getName())) {
+                        if (!$packageFilterRegex || Preg::isMatch($packageFilterRegex, $package->getName())) {
                             if (!$packageListFilter || in_array($package->getName(), $packageListFilter, true)) {
                                 $packages[$type][$package->getName()] = $package;
                             }

src/Composer/Command/UpdateCommand.php

@@ -18,6 +18,7 @@ use Composer\Filter\PlatformRequirementFilter\PlatformRequirementFilterFactory;
 use Composer\Installer;
 use Composer\IO\IOInterface;
 use Composer\Package\Loader\RootPackageLoader;
+use Composer\Pcre\Preg;
 use Composer\Plugin\CommandEvent;
 use Composer\Plugin\PluginEvents;
 use Composer\Package\Version\VersionParser;
@@ -136,7 +137,7 @@ EOT
         // extract --with shorthands from the allowlist
         if ($packages) {
             $allowlistPackagesWithRequirements = array_filter($packages, function ($pkg) {
-                return preg_match('{\S+[ =:]\S+}', $pkg) > 0;
+                return Preg::isMatch('{\S+[ =:]\S+}', $pkg);
             });
             foreach ($this->formatRequirements($allowlistPackagesWithRequirements) as $package => $constraint) {
                 $reqs[$package] = $constraint;
@@ -144,7 +145,7 @@ EOT
 
             // replace the foo/bar:req by foo/bar in the allowlist
             foreach ($allowlistPackagesWithRequirements as $package) {
-                $packageName = preg_replace('{^([^ =:]+)[ =:].*$}', '$1', $package);
+                $packageName = Preg::replace('{^([^ =:]+)[ =:].*$}', '$1', $package);
                 $index = array_search($package, $packages);
                 $packages[$index] = $packageName;
             }

src/Composer/Compiler.php

@@ -14,6 +14,7 @@ namespace Composer;
 
 use Composer\Json\JsonFile;
 use Composer\CaBundle\CaBundle;
+use Composer\Pcre\Preg;
 use Symfony\Component\Finder\Finder;
 use Symfony\Component\Process\Process;
 use Seld\PharUtils\Timestamps;
@@ -161,11 +162,11 @@ class Compiler
         foreach ($finder as $file) {
             if (in_array(realpath($file), $extraFiles, true)) {
                 unset($extraFiles[array_search(realpath($file), $extraFiles, true)]);
-            } elseif (!preg_match('{([/\\\\]LICENSE|\.php)$}', $file)) {
+            } elseif (!Preg::isMatch('{([/\\\\]LICENSE|\.php)$}', $file)) {
                 $unexpectedFiles[] = (string) $file;
             }
 
-            if (preg_match('{\.php[\d.]*$}', $file)) {
+            if (Preg::isMatch('{\.php[\d.]*$}', $file)) {
                 $this->addFile($phar, $file);
             } else {
                 $this->addFile($phar, $file, false);
@@ -241,7 +242,7 @@ class Compiler
                     '@release_date@' => $this->versionDate->format('Y-m-d H:i:s'),
                 )
             );
-            $content = preg_replace('{SOURCE_VERSION = \'[^\']+\';}', 'SOURCE_VERSION = \'\';', $content);
+            $content = Preg::replace('{SOURCE_VERSION = \'[^\']+\';}', 'SOURCE_VERSION = \'\';', $content);
         }
 
         $phar->addFromString($path, $content);
@@ -253,7 +254,7 @@ class Compiler
     private function addComposerBin(\Phar $phar)
     {
         $content = file_get_contents(__DIR__.'/../../bin/composer');
-        $content = preg_replace('{^#!/usr/bin/env php\s*}', '', $content);
+        $content = Preg::replace('{^#!/usr/bin/env php\s*}', '', $content);
         $phar->addFromString('bin/composer', $content);
     }
 
@@ -277,11 +278,11 @@ class Compiler
                 $output .= str_repeat("\n", substr_count($token[1], "\n"));
             } elseif (T_WHITESPACE === $token[0]) {
                 // reduce wide spaces
-                $whitespace = preg_replace('{[ \t]+}', ' ', $token[1]);
+                $whitespace = Preg::replace('{[ \t]+}', ' ', $token[1]);
                 // normalize newlines to \n
-                $whitespace = preg_replace('{(?:\r\n|\r|\n)}', "\n", $whitespace);
+                $whitespace = Preg::replace('{(?:\r\n|\r|\n)}', "\n", $whitespace);
                 // trim leading spaces
-                $whitespace = preg_replace('{\n +}', "\n", $whitespace);
+                $whitespace = Preg::replace('{\n +}', "\n", $whitespace);
                 $output .= $whitespace;
             } else {
                 $output .= $token[1];
@@ -329,7 +330,7 @@ Phar::mapPhar('composer.phar');
 EOF;
 
         // add warning once the phar is older than 60 days
-        if (preg_match('{^[a-f0-9]+$}', $this->version)) {
+        if (Preg::isMatch('{^[a-f0-9]+$}', $this->version)) {
             $warningTime = ((int) $this->versionDate->format('U')) + 60 * 86400;
             $stub .= "define('COMPOSER_DEV_WARNING_TIME', $warningTime);\n";
         }

src/Composer/Composer.php

@@ -14,6 +14,7 @@ namespace Composer;
 
 use Composer\Package\RootPackageInterface;
 use Composer\Package\Locker;
+use Composer\Pcre\Preg;
 use Composer\Util\Loop;
 use Composer\Repository\RepositoryManager;
 use Composer\Installer\InstallationManager;
@@ -78,7 +79,7 @@ class Composer
         }
 
         // we have a branch alias and version is a commit id, this must be a snapshot build
-        if (self::BRANCH_ALIAS_VERSION !== '' && preg_match('{^[a-f0-9]{40}$}', self::VERSION)) {
+        if (self::BRANCH_ALIAS_VERSION !== '' && Preg::isMatch('{^[a-f0-9]{40}$}', self::VERSION)) {
             return self::BRANCH_ALIAS_VERSION.'+'.self::VERSION;
         }
 

src/Composer/Config.php

@@ -15,6 +15,7 @@ namespace Composer;
 use Composer\Config\ConfigSourceInterface;
 use Composer\Downloader\TransportException;
 use Composer\IO\IOInterface;
+use Composer\Pcre\Preg;
 use Composer\Util\Platform;
 use Composer\Util\ProcessExecutor;
 
@@ -225,7 +226,7 @@ class Config
                 }
 
                 // auto-deactivate the default packagist.org repo if it gets redefined
-                if (isset($repository['type'], $repository['url']) && $repository['type'] === 'composer' && preg_match('{^https?://(?:[a-z0-9-.]+\.)?packagist.org(/|$)}', $repository['url'])) {
+                if (isset($repository['type'], $repository['url']) && $repository['type'] === 'composer' && Preg::isMatch('{^https?://(?:[a-z0-9-.]+\.)?packagist.org(/|$)}', $repository['url'])) {
                     $this->disableRepoByName('packagist.org');
                 }
 
@@ -328,7 +329,7 @@ class Config
 
             // numbers with kb/mb/gb support, without env var support
             case 'cache-files-maxsize':
-                if (!preg_match('/^\s*([0-9.]+)\s*(?:([kmg])(?:i?b)?)?\s*$/i', $this->config[$key], $matches)) {
+                if (!Preg::isMatch('/^\s*([0-9.]+)\s*(?:([kmg])(?:i?b)?)?\s*$/i', $this->config[$key], $matches)) {
                     throw new \RuntimeException(
                         "Could not parse the value of '$key': {$this->config[$key]}"
                     );
@@ -361,7 +362,7 @@ class Config
                 return (int) $this->config['cache-ttl'];
 
             case 'home':
-                $val = preg_replace('#^(\$HOME|~)(/|$)#', rtrim(Platform::getEnv('HOME') ?: Platform::getEnv('USERPROFILE'), '/\\') . '/', $this->config[$key]);
+                $val = Preg::replace('#^(\$HOME|~)(/|$)#', rtrim(Platform::getEnv('HOME') ?: Platform::getEnv('USERPROFILE'), '/\\') . '/', $this->config[$key]);
 
                 return rtrim($this->process($val, $flags), '/\\');
 
@@ -507,7 +508,7 @@ class Config
             return $value;
         }
 
-        return preg_replace_callback('#\{\$(.+)\}#', function ($match) use ($config, $flags) {
+        return Preg::replaceCallback('#\{\$(.+)\}#', function ($match) use ($config, $flags) {
             return $config->get($match[1], $flags);
         }, $value);
     }
@@ -522,7 +523,7 @@ class Config
      */
     private function realpath($path)
     {
-        if (preg_match('{^(?:/|[a-z]:|[a-z0-9.]+://)}i', $path)) {
+        if (Preg::isMatch('{^(?:/|[a-z]:|[a-z0-9.]+://)}i', $path)) {
             return $path;
         }
 

src/Composer/Config/JsonConfigSource.php

@@ -15,6 +15,7 @@ namespace Composer\Config;
 use Composer\Json\JsonFile;
 use Composer\Json\JsonManipulator;
 use Composer\Json\JsonValidationException;
+use Composer\Pcre\Preg;
 use Composer\Util\Filesystem;
 use Composer\Util\Silencer;
 
@@ -102,7 +103,7 @@ class JsonConfigSource implements ConfigSourceInterface
     {
         $authConfig = $this->authConfig;
         $this->manipulateJson('addConfigSetting', $name, $value, function (&$config, $key, $val) use ($authConfig) {
-            if (preg_match('{^(bitbucket-oauth|github-oauth|gitlab-oauth|gitlab-token|bearer|http-basic|platform)\.}', $key)) {
+            if (Preg::isMatch('{^(bitbucket-oauth|github-oauth|gitlab-oauth|gitlab-token|bearer|http-basic|platform)\.}', $key)) {
                 list($key, $host) = explode('.', $key, 2);
                 if ($authConfig) {
                     $config[$key][$host] = $val;
@@ -122,7 +123,7 @@ class JsonConfigSource implements ConfigSourceInterface
     {
         $authConfig = $this->authConfig;
         $this->manipulateJson('removeConfigSetting', $name, function (&$config, $key) use ($authConfig) {
-            if (preg_match('{^(bitbucket-oauth|github-oauth|gitlab-oauth|gitlab-token|bearer|http-basic|platform)\.}', $key)) {
+            if (Preg::isMatch('{^(bitbucket-oauth|github-oauth|gitlab-oauth|gitlab-token|bearer|http-basic|platform)\.}', $key)) {
                 list($key, $host) = explode('.', $key, 2);
                 if ($authConfig) {
                     unset($config[$key][$host]);

src/Composer/Console/HtmlOutputFormatter.php

@@ -12,6 +12,7 @@
 
 namespace Composer\Console;
 
+use Composer\Pcre\Preg;
 use Symfony\Component\Console\Formatter\OutputFormatter;
 use Symfony\Component\Console\Formatter\OutputFormatterStyle;
 
@@ -70,6 +71,7 @@ class HtmlOutputFormatter extends OutputFormatter
 
         $clearEscapeCodes = '(?:39|49|0|22|24|25|27|28)';
 
+        // TODO in 2.3 replace with Closure::fromCallable and then use Preg::replaceCallback
         return preg_replace_callback("{\033\[([0-9;]+)m(.*?)\033\[(?:".$clearEscapeCodes.";)*?".$clearEscapeCodes."m}s", array($this, 'formatHtml'), $formatted);
     }
 

src/Composer/DependencyResolver/PoolBuilder.php

@@ -20,6 +20,7 @@ use Composer\Package\CompleteAliasPackage;
 use Composer\Package\CompletePackage;
 use Composer\Package\PackageInterface;
 use Composer\Package\Version\StabilityFilter;
+use Composer\Pcre\Preg;
 use Composer\Plugin\PluginEvents;
 use Composer\Plugin\PrePoolCreateEvent;
 use Composer\Repository\PlatformRepository;
@@ -552,7 +553,7 @@ class PoolBuilder
     {
         foreach ($this->updateAllowList as $pattern => $void) {
             $patternRegexp = BasePackage::packageNameToRegexp($pattern);
-            if (preg_match($patternRegexp, $package->getName())) {
+            if (Preg::isMatch($patternRegexp, $package->getName())) {
                 return true;
             }
         }
@@ -569,13 +570,13 @@ class PoolBuilder
             $patternRegexp = BasePackage::packageNameToRegexp($pattern);
             // update pattern matches a locked package? => all good
             foreach ($request->getLockedRepository()->getPackages() as $package) {
-                if (preg_match($patternRegexp, $package->getName())) {
+                if (Preg::isMatch($patternRegexp, $package->getName())) {
                     continue 2;
                 }
             }
             // update pattern matches a root require? => all good, probably a new package
             foreach ($request->getRequires() as $packageName => $constraint) {
-                if (preg_match($patternRegexp, $packageName)) {
+                if (Preg::isMatch($patternRegexp, $packageName)) {
                     continue 2;
                 }
             }

src/Composer/DependencyResolver/Problem.php

@@ -17,6 +17,7 @@ use Composer\Package\AliasPackage;
 use Composer\Package\BasePackage;
 use Composer\Package\PackageInterface;
 use Composer\Package\RootPackageInterface;
+use Composer\Pcre\Preg;
 use Composer\Repository\RepositorySet;
 use Composer\Repository\LockArrayRepository;
 use Composer\Semver\Constraint\Constraint;
@@ -123,8 +124,8 @@ class Problem
         $deduplicatableRuleTypes = array(Rule::RULE_PACKAGE_REQUIRES, Rule::RULE_PACKAGE_CONFLICT);
         foreach ($rules as $rule) {
             $message = $rule->getPrettyString($repositorySet, $request, $pool, $isVerbose, $installedMap, $learnedPool);
-            if (in_array($rule->getReason(), $deduplicatableRuleTypes, true) && preg_match('{^(?P<package>\S+) (?P<version>\S+) (?P<type>requires|conflicts)}', $message, $m)) {
+            if (in_array($rule->getReason(), $deduplicatableRuleTypes, true) && Preg::isMatch('{^(?P<package>\S+) (?P<version>\S+) (?P<type>requires|conflicts)}', $message, $m)) {
-                $template = preg_replace('{^\S+ \S+ }', '%s%s ', $message);
+                $template = Preg::replace('{^\S+ \S+ }', '%s%s ', $message);
                 $messages[] = $template;
                 $templates[$template][$m[1]][$parser->normalize($m[2])] = $m[2];
                 $sourcePackage = $rule->getSourcePackage($pool);
@@ -146,7 +147,7 @@ class Problem
                     }
                     if (count($versions) > 1) {
                         // remove the s from requires/conflicts to correct grammar
-                        $message = preg_replace('{^(%s%s (?:require|conflict))s}', '$1', $message);
+                        $message = Preg::replace('{^(%s%s (?:require|conflict))s}', '$1', $message);
                         $result[] = sprintf($message, $package, '['.implode(', ', $versions).']');
                     } else {
                         $result[] = sprintf($message, $package, ' '.reset($versions));
@@ -350,8 +351,8 @@ class Problem
             return array("- Root composer.json requires $packageName".self::constraintToText($constraint) . ', ', 'found '.self::getPackageList($packages, $isVerbose, $pool, $constraint).' but '.(self::hasMultipleNames($packages) ? 'these do' : 'it does').' not match the constraint.' . $suffix);
         }
 
-        if (!preg_match('{^[A-Za-z0-9_./-]+$}', $packageName)) {
+        if (!Preg::isMatch('{^[A-Za-z0-9_./-]+$}', $packageName)) {
-            $illegalChars = preg_replace('{[A-Za-z0-9_./-]+}', '', $packageName);
+            $illegalChars = Preg::replace('{[A-Za-z0-9_./-]+}', '', $packageName);
 
             return array("- Root composer.json requires $packageName, it ", 'could not be found, it looks like its name is invalid, "'.$illegalChars.'" is not allowed in package names.');
         }
@@ -461,7 +462,7 @@ class Problem
             if (0 === stripos($version, 'dev-')) {
                 $byMajor['dev'][] = $pretty;
             } else {
-                $byMajor[preg_replace('{^(\d+)\..*}', '$1', $version)][] = $pretty;
+                $byMajor[Preg::replace('{^(\d+)\..*}', '$1', $version)][] = $pretty;
             }
         }
         foreach ($byMajor as $majorVersion => $versionsForMajor) {

src/Composer/Downloader/DownloadManager.php

@@ -14,6 +14,7 @@ namespace Composer\Downloader;
 
 use Composer\Package\PackageInterface;
 use Composer\IO\IOInterface;
+use Composer\Pcre\Preg;
 use Composer\Util\Filesystem;
 use Composer\Exception\IrrecoverableDownloadException;
 use React\Promise\PromiseInterface;
@@ -392,7 +393,7 @@ class DownloadManager
     {
         foreach ($this->packagePreferences as $pattern => $preference) {
             $pattern = '{^'.str_replace('\\*', '.*', preg_quote($pattern)).'$}i';
-            if (preg_match($pattern, $package->getName())) {
+            if (Preg::isMatch($pattern, $package->getName())) {
                 if ('dist' === $preference || (!$package->isDev() && 'auto' === $preference)) {
                     return 'dist';
                 }

src/Composer/Downloader/FossilDownloader.php

@@ -13,6 +13,7 @@
 namespace Composer\Downloader;
 
 use Composer\Package\PackageInterface;
+use Composer\Pcre\Preg;
 use Composer\Util\ProcessExecutor;
 
 /**
@@ -108,7 +109,7 @@ class FossilDownloader extends VcsDownloader
         $match = '/\d\d:\d\d:\d\d\s+\[' . $toReference . '\]/';
 
         foreach ($this->process->splitLines($output) as $line) {
-            if (preg_match($match, $line)) {
+            if (Preg::isMatch($match, $line)) {
                 break;
             }
             $log .= $line;

src/Composer/Downloader/GitDownloader.php

@@ -15,6 +15,7 @@ namespace Composer\Downloader;
 use Composer\Config;
 use Composer\IO\IOInterface;
 use Composer\Package\PackageInterface;
+use Composer\Pcre\Preg;
 use Composer\Util\Filesystem;
 use Composer\Util\Git as GitUtil;
 use Composer\Util\Url;
@@ -61,7 +62,7 @@ class GitDownloader extends VcsDownloader implements DvcsDownloaderInterface
     {
         GitUtil::cleanEnv();
 
-        $cachePath = $this->config->get('cache-vcs-dir').'/'.preg_replace('{[^a-z0-9.]}i', '-', $url).'/';
+        $cachePath = $this->config->get('cache-vcs-dir').'/'.Preg::replace('{[^a-z0-9.]}i', '-', $url).'/';
         $gitVersion = GitUtil::getVersion($this->process);
 
         // --dissociate option is only available since git 2.3.0-rc0
@@ -86,7 +87,7 @@ class GitDownloader extends VcsDownloader implements DvcsDownloaderInterface
     {
         GitUtil::cleanEnv();
         $path = $this->normalizePath($path);
-        $cachePath = $this->config->get('cache-vcs-dir').'/'.preg_replace('{[^a-z0-9.]}i', '-', $url).'/';
+        $cachePath = $this->config->get('cache-vcs-dir').'/'.Preg::replace('{[^a-z0-9.]}i', '-', $url).'/';
         $ref = $package->getSourceReference();
         $flag = Platform::isWindows() ? '/D ' : '';
 
@@ -120,7 +121,7 @@ class GitDownloader extends VcsDownloader implements DvcsDownloaderInterface
                     ProcessExecutor::escape($url),
                     ProcessExecutor::escape($path),
                     ProcessExecutor::escape($cachePath),
-                    ProcessExecutor::escape(preg_replace('{://([^@]+?):(.+?)@}', '://', $url)),
+                    ProcessExecutor::escape(Preg::replace('{://([^@]+?):(.+?)@}', '://', $url)),
                 ),
                 $command
             );
@@ -155,7 +156,7 @@ class GitDownloader extends VcsDownloader implements DvcsDownloaderInterface
             throw new \RuntimeException('The .git directory is missing from '.$path.', see https://getcomposer.org/commit-deps for more information');
         }
 
-        $cachePath = $this->config->get('cache-vcs-dir').'/'.preg_replace('{[^a-z0-9.]}i', '-', $url).'/';
+        $cachePath = $this->config->get('cache-vcs-dir').'/'.Preg::replace('{[^a-z0-9.]}i', '-', $url).'/';
         $ref = $target->getSourceReference();
 
         if (!empty($this->cachedPackages[$target->getId()][$ref])) {
@@ -178,7 +179,7 @@ class GitDownloader extends VcsDownloader implements DvcsDownloaderInterface
                     ProcessExecutor::escape($url),
                     ProcessExecutor::escape($ref.'^{commit}'),
                     ProcessExecutor::escape($cachePath),
-                    ProcessExecutor::escape(preg_replace('{://([^@]+?):(.+?)@}', '://', $url)),
+                    ProcessExecutor::escape(Preg::replace('{://([^@]+?):(.+?)@}', '://', $url)),
                 ),
                 $command
             );
@@ -195,8 +196,8 @@ class GitDownloader extends VcsDownloader implements DvcsDownloaderInterface
         $updateOriginUrl = false;
         if (
             0 === $this->process->execute('git remote -v', $output, $path)
-            && preg_match('{^origin\s+(?P<url>\S+)}m', $output, $originMatch)
+            && Preg::isMatch('{^origin\s+(?P<url>\S+)}m', $output, $originMatch)
-            && preg_match('{^composer\s+(?P<url>\S+)}m', $output, $composerMatch)
+            && Preg::isMatch('{^composer\s+(?P<url>\S+)}m', $output, $composerMatch)
         ) {
             if ($originMatch['url'] === $composerMatch['url'] && $composerMatch['url'] !== $target->getSourceUrl()) {
                 $updateOriginUrl = true;
@@ -244,13 +245,13 @@ class GitDownloader extends VcsDownloader implements DvcsDownloaderInterface
         }
 
         $refs = trim($output);
-        if (!preg_match('{^([a-f0-9]+) HEAD$}mi', $refs, $match)) {
+        if (!Preg::isMatch('{^([a-f0-9]+) HEAD$}mi', $refs, $match)) {
             // could not match the HEAD for some reason
             return null;
         }
 
         $headRef = $match[1];
-        if (!preg_match_all('{^'.$headRef.' refs/heads/(.+)$}mi', $refs, $matches)) {
+        if (!Preg::isMatchAll('{^'.$headRef.' refs/heads/(.+)$}mi', $refs, $matches)) {
             // not on a branch, we are either on a not-modified tag or some sort of detached head, so skip this
             return null;
         }
@@ -267,7 +268,7 @@ class GitDownloader extends VcsDownloader implements DvcsDownloaderInterface
 
             // try to find matching branch names in remote repos
             foreach ($candidateBranches as $candidate) {
-                if (preg_match_all('{^[a-f0-9]+ refs/remotes/((?:[^/]+)/'.preg_quote($candidate).')$}mi', $refs, $matches)) {
+                if (Preg::isMatchAll('{^[a-f0-9]+ refs/remotes/((?:[^/]+)/'.preg_quote($candidate).')$}mi', $refs, $matches)) {
                     foreach ($matches[1] as $match) {
                         $branch = $candidate;
                         $remoteBranches[] = $match;
@@ -359,7 +360,7 @@ class GitDownloader extends VcsDownloader implements DvcsDownloaderInterface
 
         $changes = array_map(function ($elem) {
             return '    '.$elem;
-        }, preg_split('{\s*\r?\n\s*}', $changes));
+        }, Preg::split('{\s*\r?\n\s*}', $changes));
         $this->io->writeError('    <error>'.$package->getPrettyName().' has modified files:</error>');
         $this->io->writeError(array_slice($changes, 0, 10));
         if (count($changes) > 10) {
@@ -448,7 +449,7 @@ class GitDownloader extends VcsDownloader implements DvcsDownloaderInterface
         // If the non-existent branch is actually the name of a file, the file
         // is checked out.
         $template = 'git checkout '.$force.'%s -- && git reset --hard %1$s --';
-        $branch = preg_replace('{(?:^dev-|(?:\.x)?-dev$)}i', '', $branch);
+        $branch = Preg::replace('{(?:^dev-|(?:\.x)?-dev$)}i', '', $branch);
 
         $branches = null;
         if (0 === $this->process->execute('git branch -r', $output, $path)) {
@@ -457,9 +458,9 @@ class GitDownloader extends VcsDownloader implements DvcsDownloaderInterface
 
         // check whether non-commitish are branches or tags, and fetch branches with the remote name
         $gitRef = $reference;
-        if (!preg_match('{^[a-f0-9]{40}$}', $reference)
+        if (!Preg::isMatch('{^[a-f0-9]{40}$}', $reference)
             && $branches
-            && preg_match('{^\s+composer/'.preg_quote($reference).'$}m', $branches)
+            && Preg::isMatch('{^\s+composer/'.preg_quote($reference).'$}m', $branches)
         ) {
             $command = sprintf('git checkout '.$force.'-B %s %s -- && git reset --hard %2$s --', ProcessExecutor::escape($branch), ProcessExecutor::escape('composer/'.$reference));
             if (0 === $this->process->execute($command, $output, $path)) {
@@ -468,9 +469,9 @@ class GitDownloader extends VcsDownloader implements DvcsDownloaderInterface
         }
 
         // try to checkout branch by name and then reset it so it's on the proper branch name
-        if (preg_match('{^[a-f0-9]{40}$}', $reference)) {
+        if (Preg::isMatch('{^[a-f0-9]{40}$}', $reference)) {
             // add 'v' in front of the branch if it was stripped when generating the pretty name
-            if (!preg_match('{^\s+composer/'.preg_quote($branch).'$}m', $branches) && preg_match('{^\s+composer/v'.preg_quote($branch).'$}m', $branches)) {
+            if (!Preg::isMatch('{^\s+composer/'.preg_quote($branch).'$}m', $branches) && Preg::isMatch('{^\s+composer/v'.preg_quote($branch).'$}m', $branches)) {
                 $branch = 'v' . $branch;
             }
 
@@ -517,7 +518,7 @@ class GitDownloader extends VcsDownloader implements DvcsDownloaderInterface
     protected function setPushUrl($path, $url)
     {
         // set push url for github projects
-        if (preg_match('{^(?:https?|git)://'.GitUtil::getGitHubDomainsRegex($this->config).'/([^/]+)/([^/]+?)(?:\.git)?$}', $url, $match)) {
+        if (Preg::isMatch('{^(?:https?|git)://'.GitUtil::getGitHubDomainsRegex($this->config).'/([^/]+)/([^/]+?)(?:\.git)?$}', $url, $match)) {
             $protocols = $this->config->get('github-protocols');
             $pushUrl = 'git@'.$match[1].':'.$match[2].'/'.$match[3].'.git';
             if (!in_array('ssh', $protocols, true)) {
@@ -640,7 +641,7 @@ class GitDownloader extends VcsDownloader implements DvcsDownloaderInterface
      */
     protected function getShortHash($reference)
     {
-        if (!$this->io->isVerbose() && preg_match('{^[0-9a-f]{40}$}', $reference)) {
+        if (!$this->io->isVerbose() && Preg::isMatch('{^[0-9a-f]{40}$}', $reference)) {
             return substr($reference, 0, 10);
         }
 

src/Composer/Downloader/SvnDownloader.php

@@ -13,6 +13,7 @@
 namespace Composer\Downloader;
 
 use Composer\Package\PackageInterface;
+use Composer\Pcre\Preg;
 use Composer\Util\Svn as SvnUtil;
 use Composer\Repository\VcsRepository;
 use Composer\Util\ProcessExecutor;
@@ -98,7 +99,7 @@ class SvnDownloader extends VcsDownloader
 
         $this->process->execute('svn status --ignore-externals', $output, $path);
 
-        return preg_match('{^ *[^X ] +}m', $output) ? $output : null;
+        return Preg::isMatch('{^ *[^X ] +}m', $output) ? $output : null;
     }
 
     /**
@@ -145,7 +146,7 @@ class SvnDownloader extends VcsDownloader
 
         $changes = array_map(function ($elem) {
             return '    '.$elem;
-        }, preg_split('{\s*\r?\n\s*}', $changes));
+        }, Preg::split('{\s*\r?\n\s*}', $changes));
         $countChanges = count($changes);
         $this->io->writeError(sprintf('    <error>'.$package->getPrettyName().' has modified file%s:</error>', $countChanges === 1 ? '' : 's'));
         $this->io->writeError(array_slice($changes, 0, 10));
@@ -192,7 +193,7 @@ class SvnDownloader extends VcsDownloader
      */
     protected function getCommitLogs($fromReference, $toReference, $path)
     {
-        if (preg_match('{@(\d+)$}', $fromReference) && preg_match('{@(\d+)$}', $toReference)) {
+        if (Preg::isMatch('{@(\d+)$}', $fromReference) && Preg::isMatch('{@(\d+)$}', $toReference)) {
             // retrieve the svn base url from the checkout folder
             $command = sprintf('svn info --non-interactive --xml -- %s', ProcessExecutor::escape($path));
             if (0 !== $this->process->execute($command, $output, $path)) {
@@ -202,7 +203,7 @@ class SvnDownloader extends VcsDownloader
             }
 
             $urlPattern = '#<url>(.*)</url>#';
-            if (preg_match($urlPattern, $output, $matches)) {
+            if (Preg::isMatch($urlPattern, $output, $matches)) {
                 $baseUrl = $matches[1];
             } else {
                 throw new \RuntimeException(
@@ -211,8 +212,8 @@ class SvnDownloader extends VcsDownloader
             }
 
             // strip paths from references and only keep the actual revision
-            $fromRevision = preg_replace('{.*@(\d+)$}', '$1', $fromReference);
+            $fromRevision = Preg::replace('{.*@(\d+)$}', '$1', $fromReference);
-            $toRevision = preg_replace('{.*@(\d+)$}', '$1', $toReference);
+            $toRevision = Preg::replace('{.*@(\d+)$}', '$1', $toReference);
 
             $command = sprintf('svn log -r%s:%s --incremental', ProcessExecutor::escape($fromRevision), ProcessExecutor::escape($toRevision));
 

src/Composer/EventDispatcher/EventDispatcher.php

@@ -16,6 +16,7 @@ use Composer\DependencyResolver\Transaction;
 use Composer\Installer\InstallerEvent;
 use Composer\IO\IOInterface;
 use Composer\Composer;
+use Composer\Pcre\Preg;
 use Composer\Util\Platform;
 use Composer\DependencyResolver\Operation\OperationInterface;
 use Composer\Repository\RepositoryInterface;
@@ -253,9 +254,9 @@ class EventDispatcher
                     $possibleLocalBinaries = $this->composer->getPackage()->getBinaries();
                     if ($possibleLocalBinaries) {
                         foreach ($possibleLocalBinaries as $localExec) {
-                            if (preg_match('{\b'.preg_quote($callable).'$}', $localExec)) {
+                            if (Preg::isMatch('{\b'.preg_quote($callable).'$}', $localExec)) {
                                 $caller = BinaryInstaller::determineBinaryCaller($localExec);
-                                $exec = preg_replace('{^'.preg_quote($callable).'}', $caller . ' ' . $localExec, $exec);
+                                $exec = Preg::replace('{^'.preg_quote($callable).'}', $caller . ' ' . $localExec, $exec);
                                 break;
                             }
                         }
@@ -274,13 +275,13 @@ class EventDispatcher
                     if (strpos($exec, '@php ') === 0) {
                         $pathAndArgs = substr($exec, 5);
                         if (Platform::isWindows()) {
-                            $pathAndArgs = preg_replace_callback('{^\S+}', function ($path) {
+                            $pathAndArgs = Preg::replaceCallback('{^\S+}', function ($path) {
                                 return str_replace('/', '\\', $path[0]);
                             }, $pathAndArgs);
                         }
                         // match somename (not in quote, and not a qualified path) and if it is not a valid path from CWD then try to find it
                         // in $PATH. This allows support for `@php foo` where foo is a binary name found in PATH but not an actual relative path
-                        $matched = preg_match('{^[^\'"\s/\\\\]+}', $pathAndArgs, $match);
+                        $matched = Preg::isMatch('{^[^\'"\s/\\\\]+}', $pathAndArgs, $match);
                         if ($matched && !file_exists($match[0])) {
                             $finder = new ExecutableFinder;
                             if ($pathToExec = $finder->find($match[0])) {
@@ -296,7 +297,7 @@ class EventDispatcher
                         }
 
                         if (Platform::isWindows()) {
-                            $exec = preg_replace_callback('{^\S+}', function ($path) {
+                            $exec = Preg::replaceCallback('{^\S+}', function ($path) {
                                 return str_replace('/', '\\', $path[0]);
                             }, $exec);
                         }
@@ -579,7 +580,7 @@ class EventDispatcher
         if (is_dir($binDir)) {
             $binDir = realpath($binDir);
             $pathValue = Platform::getEnv($pathEnv);
-            if (!preg_match('{(^|'.PATH_SEPARATOR.')'.preg_quote($binDir).'($|'.PATH_SEPARATOR.')}', $pathValue)) {
+            if (!Preg::isMatch('{(^|'.PATH_SEPARATOR.')'.preg_quote($binDir).'($|'.PATH_SEPARATOR.')}', $pathValue)) {
                 Platform::putEnv($pathEnv, $binDir.PATH_SEPARATOR.$pathValue);
             }
         }

src/Composer/Filter/PlatformRequirementFilter/IgnoreListPlatformRequirementFilter.php

@@ -3,6 +3,7 @@
 namespace Composer\Filter\PlatformRequirementFilter;
 
 use Composer\Package\BasePackage;
+use Composer\Pcre\Preg;
 use Composer\Repository\PlatformRepository;
 
 final class IgnoreListPlatformRequirementFilter implements PlatformRequirementFilterInterface
@@ -30,6 +31,6 @@ final class IgnoreListPlatformRequirementFilter implements PlatformRequirementFi
             return false;
         }
 
-        return 1 === preg_match($this->regexp, $req);
+        return Preg::isMatch($this->regexp, $req);
     }
 }

src/Composer/IO/BaseIO.php

@@ -13,6 +13,7 @@
 namespace Composer\IO;
 
 use Composer\Config;
+use Composer\Pcre\Preg;
 use Composer\Util\ProcessExecutor;
 use Psr\Log\LogLevel;
 
@@ -129,7 +130,7 @@ abstract class BaseIO implements IOInterface
         foreach ($githubOauth as $domain => $token) {
             // allowed chars for GH tokens are from https://github.blog/changelog/2021-03-04-authentication-token-format-updates/
             // plus dots which were at some point used for GH app integration tokens
-            if (!preg_match('{^[.A-Za-z0-9_]+$}', $token)) {
+            if (!Preg::isMatch('{^[.A-Za-z0-9_]+$}', $token)) {
                 throw new \UnexpectedValueException('Your github oauth token for '.$domain.' contains invalid characters: "'.$token.'"');
             }
             $this->checkAndSetAuthentication($domain, $token, 'x-oauth-basic');

src/Composer/IO/BufferIO.php

@@ -12,6 +12,7 @@
 
 namespace Composer\IO;
 
+use Composer\Pcre\Preg;
 use Symfony\Component\Console\Helper\QuestionHelper;
 use Symfony\Component\Console\Output\StreamOutput;
 use Symfony\Component\Console\Formatter\OutputFormatterInterface;
@@ -55,7 +56,7 @@ class BufferIO extends ConsoleIO
 
         $output = stream_get_contents($this->output->getStream());
 
-        $output = preg_replace_callback("{(?<=^|\n|\x08)(.+?)(\x08+)}", function ($matches) {
+        $output = Preg::replaceCallback("{(?<=^|\n|\x08)(.+?)(\x08+)}", function ($matches) {
             $pre = strip_tags($matches[1]);
 
             if (strlen($pre) === strlen($matches[2])) {

src/Composer/Installer/BinaryInstaller.php

@@ -14,6 +14,7 @@ namespace Composer\Installer;
 
 use Composer\IO\IOInterface;
 use Composer\Package\PackageInterface;
+use Composer\Pcre\Preg;
 use Composer\Util\Filesystem;
 use Composer\Util\Platform;
 use Composer\Util\ProcessExecutor;
@@ -153,7 +154,7 @@ class BinaryInstaller
         $handle = fopen($bin, 'r');
         $line = fgets($handle);
         fclose($handle);
-        if (preg_match('{^#!/(?:usr/bin/env )?(?:[^/]+/)*(.+)$}m', $line, $match)) {
+        if (Preg::isMatch('{^#!/(?:usr/bin/env )?(?:[^/]+/)*(.+)$}m', $line, $match)) {
             return trim($match[1]);
         }
 
@@ -255,7 +256,7 @@ class BinaryInstaller
         $binContents = file_get_contents($bin);
         // For php files, we generate a PHP proxy instead of a shell one,
         // which allows calling the proxy with a custom php process
-        if (preg_match('{^(#!.*\r?\n)?<\?php}', $binContents, $match)) {
+        if (Preg::isMatch('{^(#!.*\r?\n)?<\?php}', $binContents, $match)) {
             // carry over the existing shebang if present, otherwise add our own
             $proxyCode = empty($match[1]) ? '#!/usr/bin/env php' : trim($match[1]);
             $binPathExported = $this->filesystem->findShortestPathCode($link, $bin, false, true);

src/Composer/Installer/LibraryInstaller.php

@@ -14,6 +14,7 @@ namespace Composer\Installer;
 
 use Composer\Composer;
 use Composer\IO\IOInterface;
+use Composer\Pcre\Preg;
 use Composer\Repository\InstalledRepositoryInterface;
 use Composer\Package\PackageInterface;
 use Composer\Util\Filesystem;
@@ -252,7 +253,7 @@ class LibraryInstaller implements InstallerInterface, BinaryPresenceInterface
         $targetDir = $package->getTargetDir();
 
         if ($targetDir) {
-            return preg_replace('{/*'.str_replace('/', '/+', preg_quote($targetDir)).'/?$}', '', $installPath);
+            return Preg::replace('{/*'.str_replace('/', '/+', preg_quote($targetDir)).'/?$}', '', $installPath);
         }
 
         return $installPath;

src/Composer/Installer/SuggestedPackagesReporter.php

@@ -14,6 +14,7 @@ namespace Composer\Installer;
 
 use Composer\IO\IOInterface;
 use Composer\Package\PackageInterface;
+use Composer\Pcre\Preg;
 use Composer\Repository\InstalledRepository;
 use Symfony\Component\Console\Formatter\OutputFormatter;
 
@@ -232,7 +233,7 @@ class SuggestedPackagesReporter
      */
     private function removeControlCharacters($string)
     {
-        return preg_replace(
+        return Preg::replace(
             '/[[:cntrl:]]/',
             '',
             str_replace("\n", ' ', $string)

src/Composer/Json/JsonFile.php

@@ -12,6 +12,7 @@
 
 namespace Composer\Json;
 
+use Composer\Pcre\Preg;
 use JsonSchema\Validator;
 use Seld\JsonLint\JsonParser;
 use Seld\JsonLint\ParsingException;
@@ -55,7 +56,7 @@ class JsonFile
     {
         $this->path = $path;
 
-        if (null === $httpDownloader && preg_match('{^https?://}i', $path)) {
+        if (null === $httpDownloader && Preg::isMatch('{^https?://}i', $path)) {
             throw new \InvalidArgumentException('http urls require a HttpDownloader instance to be passed');
         }
         $this->httpDownloader = $httpDownloader;
@@ -245,8 +246,8 @@ class JsonFile
 
             //  compact brackets to follow recent php versions
             if (PHP_VERSION_ID < 50428 || (PHP_VERSION_ID >= 50500 && PHP_VERSION_ID < 50512) || (defined('JSON_C_VERSION') && version_compare(phpversion('json'), '1.3.6', '<'))) {
-                $json = preg_replace('/\[\s+\]/', '[]', $json);
+                $json = Preg::replace('/\[\s+\]/', '[]', $json);
-                $json = preg_replace('/\{\s+\}/', '{}', $json);
+                $json = Preg::replace('/\{\s+\}/', '{}', $json);
             }
 
             return $json;

src/Composer/Json/JsonFormatter.php

@@ -12,6 +12,8 @@
 
 namespace Composer\Json;
 
+use Composer\Pcre\Preg;
+
 /**
  * Formats json strings used for php < 5.4 because the json_encode doesn't
  * supports the flags JSON_UNESCAPED_SLASHES | JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE
@@ -66,7 +68,7 @@ class JsonFormatter
 
                 if ($unescapeUnicode && function_exists('mb_convert_encoding')) {
                     // https://stackoverflow.com/questions/2934563/how-to-decode-unicode-escape-sequences-like-u00ed-to-proper-utf-8-encoded-cha
-                    $buffer = preg_replace_callback('/(\\\\+)u([0-9a-f]{4})/i', function ($match) {
+                    $buffer = Preg::replaceCallback('/(\\\\+)u([0-9a-f]{4})/i', function ($match) {
                         $l = strlen($match[1]);
 
                         if ($l % 2) {

src/Composer/Json/JsonManipulator.php

@@ -12,6 +12,7 @@
 
 namespace Composer\Json;
 
+use Composer\Pcre\Preg;
 use Composer\Repository\PlatformRepository;
 
 /**
@@ -46,7 +47,7 @@ class JsonManipulator
         if ($contents === '') {
             $contents = '{}';
         }
-        if (!$this->pregMatch('#^\{(.*)\}$#s', $contents)) {
+        if (!Preg::isMatch('#^\{(.*)\}$#s', $contents)) {
             throw new \InvalidArgumentException('The json file must be an object ({})');
         }
         $this->newline = false !== strpos($contents, "\r\n") ? "\r\n" : "\n";
@@ -80,7 +81,7 @@ class JsonManipulator
 
         $regex = '{'.self::$DEFINES.'^(?P<start>\s*\{\s*(?:(?&string)\s*:\s*(?&json)\s*,\s*)*?)'.
             '(?P<property>'.preg_quote(JsonFile::encode($type)).'\s*:\s*)(?P<value>(?&json))(?P<end>.*)}sx';
-        if (!$this->pregMatch($regex, $this->contents, $matches)) {
+        if (!Preg::isMatch($regex, $this->contents, $matches)) {
             return false;
         }
 
@@ -89,17 +90,17 @@ class JsonManipulator
         // try to find existing link
         $packageRegex = str_replace('/', '\\\\?/', preg_quote($package));
         $regex = '{'.self::$DEFINES.'"(?P<package>'.$packageRegex.')"(\s*:\s*)(?&string)}ix';
-        if ($this->pregMatch($regex, $links, $packageMatches)) {
+        if (Preg::isMatch($regex, $links, $packageMatches)) {
             // update existing link
             $existingPackage = $packageMatches['package'];
             $packageRegex = str_replace('/', '\\\\?/', preg_quote($existingPackage));
-            $links = preg_replace_callback('{'.self::$DEFINES.'"'.$packageRegex.'"(?P<separator>\s*:\s*)(?&string)}ix', function ($m) use ($existingPackage, $constraint) {
+            $links = Preg::replaceCallback('{'.self::$DEFINES.'"'.$packageRegex.'"(?P<separator>\s*:\s*)(?&string)}ix', function ($m) use ($existingPackage, $constraint) {
                 return JsonFile::encode(str_replace('\\/', '/', $existingPackage)) . $m['separator'] . '"' . $constraint . '"';
             }, $links);
         } else {
-            if ($this->pregMatch('#^\s*\{\s*\S+.*?(\s*\}\s*)$#s', $links, $match)) {
+            if (Preg::isMatch('#^\s*\{\s*\S+.*?(\s*\}\s*)$#s', $links, $match)) {
                 // link missing but non empty links
-                $links = preg_replace(
+                $links = Preg::replace(
                     '{'.preg_quote($match[1]).'$}',
                     // addcslashes is used to double up backslashes/$ since preg_replace resolves them as back references otherwise, see #1588
                     addcslashes(',' . $this->newline . $this->indent . $this->indent . JsonFile::encode($package).': '.JsonFile::encode($constraint) . $match[1], '\\$'),
@@ -136,7 +137,7 @@ class JsonManipulator
     {
         $prefix = function ($requirement) {
             if (PlatformRepository::isPlatformPackage($requirement)) {
-                return preg_replace(
+                return Preg::replace(
                     array(
                         '/^php/',
                         '/^hhvm/',
@@ -277,7 +278,7 @@ class JsonManipulator
             preg_quote(JsonFile::encode($mainNode)).'\s*:\s*)(?P<content>(?&object))(?P<end>.*)}sx';
 
         try {
-            if (!$this->pregMatch($nodeRegex, $this->contents, $match)) {
+            if (!Preg::isMatch($nodeRegex, $this->contents, $match)) {
                 return false;
             }
         } catch (\RuntimeException $e) {
@@ -297,8 +298,8 @@ class JsonManipulator
 
         // child exists
         $childRegex = '{'.self::$DEFINES.'(?P<start>"'.preg_quote($name).'"\s*:\s*)(?P<content>(?&json))(?P<end>,?)}x';
-        if ($this->pregMatch($childRegex, $children, $matches)) {
+        if (Preg::isMatch($childRegex, $children, $matches)) {
-            $children = preg_replace_callback($childRegex, function ($matches) use ($subName, $value, $that) {
+            $children = Preg::replaceCallback($childRegex, function ($matches) use ($subName, $value, $that) {
                 if ($subName !== null) {
                     $curVal = json_decode($matches['content'], true);
                     if (!is_array($curVal)) {
@@ -311,7 +312,7 @@ class JsonManipulator
                 return $matches['start'] . $that->format($value, 1) . $matches['end'];
             }, $children);
         } else {
-            $this->pregMatch('#^{ (?P<leadingspace>\s*?) (?P<content>\S+.*?)? (?P<trailingspace>\s*) }$#sx', $children, $match);
+            Preg::match('#^{ (?P<leadingspace>\s*?) (?P<content>\S+.*?)? (?P<trailingspace>\s*) }$#sx', $children, $match);
 
             $whitespace = '';
             if (!empty($match['trailingspace'])) {
@@ -325,7 +326,7 @@ class JsonManipulator
 
                 // child missing but non empty children
                 if ($append) {
-                    $children = preg_replace(
+                    $children = Preg::replace(
                         '#'.$whitespace.'}$#',
                         addcslashes(',' . $this->newline . $this->indent . $this->indent . JsonFile::encode($name).': '.$this->format($value, 1) . $whitespace . '}', '\\$'),
                         $children
@@ -336,7 +337,7 @@ class JsonManipulator
                         $whitespace = $match['leadingspace'];
                     }
 
-                    $children = preg_replace(
+                    $children = Preg::replace(
                         '#^{'.$whitespace.'#',
                         addcslashes('{' . $whitespace . JsonFile::encode($name).': '.$this->format($value, 1) . ',' . $this->newline . $this->indent . $this->indent, '\\$'),
                         $children
@@ -352,7 +353,7 @@ class JsonManipulator
             }
         }
 
-        $this->contents = preg_replace_callback($nodeRegex, function ($m) use ($children) {
+        $this->contents = Preg::replaceCallback($nodeRegex, function ($m) use ($children) {
             return $m['start'] . $children . $m['end'];
         }, $this->contents);
 
@@ -377,7 +378,7 @@ class JsonManipulator
         $nodeRegex = '{'.self::$DEFINES.'^(?P<start> \s* \{ \s* (?: (?&string) \s* : (?&json) \s* , \s* )*?'.
             preg_quote(JsonFile::encode($mainNode)).'\s*:\s*)(?P<content>(?&object))(?P<end>.*)}sx';
         try {
-            if (!$this->pregMatch($nodeRegex, $this->contents, $match)) {
+            if (!Preg::isMatch($nodeRegex, $this->contents, $match)) {
                 return false;
             }
         } catch (\RuntimeException $e) {
@@ -406,18 +407,18 @@ class JsonManipulator
 
         // try and find a match for the subkey
         $keyRegex = str_replace('/', '\\\\?/', preg_quote($name));
-        if ($this->pregMatch('{"'.$keyRegex.'"\s*:}i', $children)) {
+        if (Preg::isMatch('{"'.$keyRegex.'"\s*:}i', $children)) {
             // find best match for the value of "name"
-            if (preg_match_all('{'.self::$DEFINES.'"'.$keyRegex.'"\s*:\s*(?:(?&json))}x', $children, $matches)) {
+            if (Preg::isMatchAll('{'.self::$DEFINES.'"'.$keyRegex.'"\s*:\s*(?:(?&json))}x', $children, $matches)) {
                 $bestMatch = '';
                 foreach ($matches[0] as $match) {
                     if (strlen($bestMatch) < strlen($match)) {
                         $bestMatch = $match;
                     }
                 }
-                $childrenClean = preg_replace('{,\s*'.preg_quote($bestMatch).'}i', '', $children, -1, $count);
+                $childrenClean = Preg::replace('{,\s*'.preg_quote($bestMatch).'}i', '', $children, -1, $count);
                 if (1 !== $count) {
-                    $childrenClean = preg_replace('{'.preg_quote($bestMatch).'\s*,?\s*}i', '', $childrenClean, -1, $count);
+                    $childrenClean = Preg::replace('{'.preg_quote($bestMatch).'\s*,?\s*}i', '', $childrenClean, -1, $count);
                     if (1 !== $count) {
                         return false;
                     }
@@ -432,12 +433,12 @@ class JsonManipulator
         }
 
         // no child data left, $name was the only key in
-        $this->pregMatch('#^{ \s*? (?P<content>\S+.*?)? (?P<trailingspace>\s*) }$#sx', $childrenClean, $match);
+        Preg::match('#^{ \s*? (?P<content>\S+.*?)? (?P<trailingspace>\s*) }$#sx', $childrenClean, $match);
         if (empty($match['content'])) {
             $newline = $this->newline;
             $indent = $this->indent;
 
-            $this->contents = preg_replace_callback($nodeRegex, function ($matches) use ($indent, $newline) {
+            $this->contents = Preg::replaceCallback($nodeRegex, function ($matches) use ($indent, $newline) {
                 return $matches['start'] . '{' . $newline . $indent . '}' . $matches['end'];
             }, $this->contents);
 
@@ -452,7 +453,7 @@ class JsonManipulator
         }
 
         $that = $this;
-        $this->contents = preg_replace_callback($nodeRegex, function ($matches) use ($that, $name, $subName, $childrenClean) {
+        $this->contents = Preg::replaceCallback($nodeRegex, function ($matches) use ($that, $name, $subName, $childrenClean) {
             if ($subName !== null) {
                 $curVal = json_decode($matches['content'], true);
                 unset($curVal[$name][$subName]);
@@ -478,7 +479,7 @@ class JsonManipulator
         // key exists already
         $regex = '{'.self::$DEFINES.'^(?P<start>\s*\{\s*(?:(?&string)\s*:\s*(?&json)\s*,\s*)*?)'.
             '(?P<key>'.preg_quote(JsonFile::encode($key)).'\s*:\s*(?&json))(?P<end>.*)}sx';
-        if (isset($decoded[$key]) && $this->pregMatch($regex, $this->contents, $matches)) {
+        if (isset($decoded[$key]) && Preg::isMatch($regex, $this->contents, $matches)) {
             // invalid match due to un-regexable content, abort
             if (!@json_decode('{'.$matches['key'].'}')) {
                 return false;
@@ -490,8 +491,8 @@ class JsonManipulator
         }
 
         // append at the end of the file and keep whitespace
-        if ($this->pregMatch('#[^{\s](\s*)\}$#', $this->contents, $match)) {
+        if (Preg::isMatch('#[^{\s](\s*)\}$#', $this->contents, $match)) {
-            $this->contents = preg_replace(
+            $this->contents = Preg::replace(
                 '#'.$match[1].'\}$#',
                 addcslashes(',' . $this->newline . $this->indent . JsonFile::encode($key). ': '. $content . $this->newline . '}', '\\$'),
                 $this->contents
@@ -501,7 +502,7 @@ class JsonManipulator
         }
 
         // append at the end of the file
-        $this->contents = preg_replace(
+        $this->contents = Preg::replace(
             '#\}$#',
             addcslashes($this->indent . JsonFile::encode($key). ': '.$content . $this->newline . '}', '\\$'),
             $this->contents
@@ -525,19 +526,19 @@ class JsonManipulator
         // key exists already
         $regex = '{'.self::$DEFINES.'^(?P<start>\s*\{\s*(?:(?&string)\s*:\s*(?&json)\s*,\s*)*?)'.
             '(?P<removal>'.preg_quote(JsonFile::encode($key)).'\s*:\s*(?&json))\s*,?\s*(?P<end>.*)}sx';
-        if ($this->pregMatch($regex, $this->contents, $matches)) {
+        if (Preg::isMatch($regex, $this->contents, $matches)) {
             // invalid match due to un-regexable content, abort
             if (!@json_decode('{'.$matches['removal'].'}')) {
                 return false;
             }
 
             // check that we are not leaving a dangling comma on the previous line if the last line was removed
-            if (preg_match('#,\s*$#', $matches['start']) && preg_match('#^\}$#', $matches['end'])) {
+            if (Preg::isMatch('#,\s*$#', $matches['start']) && Preg::isMatch('#^\}$#', $matches['end'])) {
-                $matches['start'] = rtrim(preg_replace('#,(\s*)$#', '$1', $matches['start']), $this->indent);
+                $matches['start'] = rtrim(Preg::replace('#,(\s*)$#', '$1', $matches['start']), $this->indent);
             }
 
             $this->contents = $matches['start'] . $matches['end'];
-            if (preg_match('#^\{\s*\}\s*$#', $this->contents)) {
+            if (Preg::isMatch('#^\{\s*\}\s*$#', $this->contents)) {
                 $this->contents = "{\n}";
             }
 
@@ -601,47 +602,10 @@ class JsonManipulator
      */
     protected function detectIndenting()
     {
-        if ($this->pregMatch('{^([ \t]+)"}m', $this->contents, $match)) {
+        if (Preg::isMatch('{^([ \t]+)"}m', $this->contents, $match)) {
             $this->indent = $match[1];
         } else {
             $this->indent = '    ';
         }
     }
-
-    /**
-     * @param string        $re
-     * @param string        $str
-     * @param array<string> $matches
-     * @return int
-     */
-    protected function pregMatch($re, $str, &$matches = array())
-    {
-        $count = preg_match($re, $str, $matches);
-
-        if ($count === false) {
-            switch (preg_last_error()) {
-                case PREG_NO_ERROR:
-                    throw new \RuntimeException('Failed to execute regex: PREG_NO_ERROR', PREG_NO_ERROR);
-                case PREG_INTERNAL_ERROR:
-                    throw new \RuntimeException('Failed to execute regex: PREG_INTERNAL_ERROR', PREG_INTERNAL_ERROR);
-                case PREG_BACKTRACK_LIMIT_ERROR:
-                    throw new \RuntimeException('Failed to execute regex: PREG_BACKTRACK_LIMIT_ERROR', PREG_BACKTRACK_LIMIT_ERROR);
-                case PREG_RECURSION_LIMIT_ERROR:
-                    throw new \RuntimeException('Failed to execute regex: PREG_RECURSION_LIMIT_ERROR', PREG_RECURSION_LIMIT_ERROR);
-                case PREG_BAD_UTF8_ERROR:
-                    throw new \RuntimeException('Failed to execute regex: PREG_BAD_UTF8_ERROR', PREG_BAD_UTF8_ERROR);
-                case PREG_BAD_UTF8_OFFSET_ERROR:
-                    throw new \RuntimeException('Failed to execute regex: PREG_BAD_UTF8_OFFSET_ERROR', PREG_BAD_UTF8_OFFSET_ERROR);
-                case 6: // PREG_JIT_STACKLIMIT_ERROR
-                    if (PHP_VERSION_ID > 70000) {
-                        throw new \RuntimeException('Failed to execute regex: PREG_JIT_STACKLIMIT_ERROR', 6);
-                    }
-                    // no break
-                default:
-                    throw new \RuntimeException('Failed to execute regex: Unknown error');
-            }
-        }
-
-        return $count;
-    }
 }

src/Composer/Package/Archiver/ArchivableFilesFinder.php

@@ -12,6 +12,7 @@
 
 namespace Composer\Package\Archiver;
 
+use Composer\Pcre\Preg;
 use Composer\Util\Filesystem;
 use FilesystemIterator;
 use Symfony\Component\Finder\Finder;
@@ -61,7 +62,7 @@ class ArchivableFilesFinder extends \FilterIterator
                 return false;
             }
 
-            $relativePath = preg_replace(
+            $relativePath = Preg::replace(
                 '#^'.preg_quote($sources, '#').'#',
                 '',
                 $fs->normalizePath($file->getRealPath())

src/Composer/Package/Archiver/ArchiveManager.php

@@ -14,6 +14,7 @@ namespace Composer\Package\Archiver;
 
 use Composer\Downloader\DownloadManager;
 use Composer\Package\RootPackageInterface;
+use Composer\Pcre\Preg;
 use Composer\Util\Filesystem;
 use Composer\Util\Loop;
 use Composer\Util\SyncHelper;
@@ -86,11 +87,11 @@ class ArchiveManager
         if ($package->getArchiveName()) {
             $baseName = $package->getArchiveName();
         } else {
-            $baseName = preg_replace('#[^a-z0-9-_]#i', '-', $package->getName());
+            $baseName = Preg::replace('#[^a-z0-9-_]#i', '-', $package->getName());
         }
         $nameParts = array($baseName);
 
-        if (null !== $package->getDistReference() && preg_match('{^[a-f0-9]{40}$}', $package->getDistReference())) {
+        if (null !== $package->getDistReference() && Preg::isMatch('{^[a-f0-9]{40}$}', $package->getDistReference())) {
             array_push($nameParts, $package->getDistReference(), $package->getDistType());
         } else {
             array_push($nameParts, $package->getPrettyVersion(), $package->getDistReference());

src/Composer/Package/Archiver/BaseExcludeFilter.php

@@ -12,6 +12,7 @@
 
 namespace Composer\Package\Archiver;
 
+use Composer\Pcre\Preg;
 use Symfony\Component\Finder;
 
 /**
@@ -59,8 +60,12 @@ abstract class BaseExcludeFilter
                 $path = $relativePath;
             }
 
-            if (@preg_match($pattern, $path)) {
+            try {
-                $exclude = !$negate;
+                if (Preg::isMatch($pattern, $path)) {
+                    $exclude = !$negate;
+                }
+            } catch (\RuntimeException $e) {
+                // suppressed
             }
         }
 

src/Composer/Package/Archiver/GitExcludeFilter.php

@@ -12,6 +12,8 @@
 
 namespace Composer\Package\Archiver;
 
+use Composer\Pcre\Preg;
+
 /**
  * An exclude filter that processes gitattributes
  *
@@ -50,7 +52,7 @@ class GitExcludeFilter extends BaseExcludeFilter
      */
     public function parseGitAttributesLine($line)
     {
-        $parts = preg_split('#\s+#', $line);
+        $parts = Preg::split('#\s+#', $line);
 
         if (count($parts) == 2 && $parts[1] === 'export-ignore') {
             return $this->generatePattern($parts[0]);

src/Composer/Package/Loader/ArrayLoader.php

@@ -21,6 +21,7 @@ use Composer\Package\CompletePackageInterface;
 use Composer\Package\Link;
 use Composer\Package\RootAliasPackage;
 use Composer\Package\Version\VersionParser;
+use Composer\Pcre\Preg;
 
 /**
  * @author Konstantin Kudryashiv <ever.zet@gmail.com>
@@ -227,7 +228,7 @@ class ArrayLoader implements LoaderInterface
         }
 
         if (!empty($config['time'])) {
-            $time = preg_match('/^\d++$/D', $config['time']) ? '@'.$config['time'] : $config['time'];
+            $time = Preg::isMatch('/^\d++$/D', $config['time']) ? '@'.$config['time'] : $config['time'];
 
             try {
                 $date = new \DateTime($time, new \DateTimeZone('UTC'));
@@ -298,7 +299,7 @@ class ArrayLoader implements LoaderInterface
         }
 
         if ($aliasNormalized = $this->getBranchAlias($config)) {
-            $prettyAlias = preg_replace('{(\.9{7})+}', '.x', $aliasNormalized);
+            $prettyAlias = Preg::replace('{(\.9{7})+}', '.x', $aliasNormalized);
 
             if ($package instanceof RootPackage) {
                 return new RootAliasPackage($package, $aliasNormalized, $prettyAlias);

src/Composer/Package/Loader/RootPackageLoader.php

@@ -16,6 +16,7 @@ use Composer\Package\BasePackage;
 use Composer\Config;
 use Composer\IO\IOInterface;
 use Composer\Package\RootAliasPackage;
+use Composer\Pcre\Preg;
 use Composer\Repository\RepositoryFactory;
 use Composer\Package\Version\VersionGuesser;
 use Composer\Package\Version\VersionParser;
@@ -196,7 +197,7 @@ class RootPackageLoader extends ArrayLoader
     private function extractAliases(array $requires, array $aliases)
     {
         foreach ($requires as $reqName => $reqVersion) {
-            if (preg_match('{^([^,\s#]+)(?:#[^ ]+)? +as +([^,\s]+)$}', $reqVersion, $match)) {
+            if (Preg::isMatch('{^([^,\s#]+)(?:#[^ ]+)? +as +([^,\s]+)$}', $reqVersion, $match)) {
                 $aliases[] = array(
                     'package' => strtolower($reqName),
                     'version' => $this->versionParser->normalize($match[1], $reqVersion),
@@ -232,9 +233,9 @@ class RootPackageLoader extends ArrayLoader
             $constraints = array();
 
             // extract all sub-constraints in case it is an OR/AND multi-constraint
-            $orSplit = preg_split('{\s*\|\|?\s*}', trim($reqVersion));
+            $orSplit = Preg::split('{\s*\|\|?\s*}', trim($reqVersion));
             foreach ($orSplit as $orConstraint) {
-                $andSplit = preg_split('{(?<!^|as|[=>< ,]) *(?<!-)[, ](?!-) *(?!,|as|$)}', $orConstraint);
+                $andSplit = Preg::split('{(?<!^|as|[=>< ,]) *(?<!-)[, ](?!-) *(?!,|as|$)}', $orConstraint);
                 foreach ($andSplit as $andConstraint) {
                     $constraints[] = $andConstraint;
                 }
@@ -243,7 +244,7 @@ class RootPackageLoader extends ArrayLoader
             // parse explicit stability flags to the most unstable
             $match = false;
             foreach ($constraints as $constraint) {
-                if (preg_match('{^[^@]*?@('.implode('|', array_keys($stabilities)).')$}i', $constraint, $match)) {
+                if (Preg::isMatch('{^[^@]*?@('.implode('|', array_keys($stabilities)).')$}i', $constraint, $match)) {
                     $name = strtolower($reqName);
                     $stability = $stabilities[VersionParser::normalizeStability($match[1])];
 
@@ -262,8 +263,8 @@ class RootPackageLoader extends ArrayLoader
             foreach ($constraints as $constraint) {
                 // infer flags for requirements that have an explicit -dev or -beta version specified but only
                 // for those that are more unstable than the minimumStability or existing flags
-                $reqVersion = preg_replace('{^([^,\s@]+) as .+$}', '$1', $constraint);
+                $reqVersion = Preg::replace('{^([^,\s@]+) as .+$}', '$1', $constraint);
-                if (preg_match('{^[^,\s@]+$}', $reqVersion) && 'stable' !== ($stabilityName = VersionParser::parseStability($reqVersion))) {
+                if (Preg::isMatch('{^[^,\s@]+$}', $reqVersion) && 'stable' !== ($stabilityName = VersionParser::parseStability($reqVersion))) {
                     $name = strtolower($reqName);
                     $stability = $stabilities[$stabilityName];
                     if ((isset($stabilityFlags[$name]) && $stabilityFlags[$name] > $stability) || ($minimumStability > $stability)) {
@@ -288,8 +289,8 @@ class RootPackageLoader extends ArrayLoader
     public static function extractReferences(array $requires, array $references)
     {
         foreach ($requires as $reqName => $reqVersion) {
-            $reqVersion = preg_replace('{^([^,\s@]+) as .+$}', '$1', $reqVersion);
+            $reqVersion = Preg::replace('{^([^,\s@]+) as .+$}', '$1', $reqVersion);
-            if (preg_match('{^[^,\s@]+?#([a-f0-9]+)$}', $reqVersion, $match) && 'dev' === VersionParser::parseStability($reqVersion)) {
+            if (Preg::isMatch('{^[^,\s@]+?#([a-f0-9]+)$}', $reqVersion, $match) && 'dev' === VersionParser::parseStability($reqVersion)) {
                 $name = strtolower($reqName);
                 $references[$name] = $match[1];
             }

src/Composer/Package/Loader/ValidatingArrayLoader.php

@@ -13,6 +13,7 @@
 namespace Composer\Package\Loader;
 
 use Composer\Package\BasePackage;
+use Composer\Pcre\Preg;
 use Composer\Semver\Constraint\Constraint;
 use Composer\Package\Version\VersionParser;
 use Composer\Repository\PlatformRepository;
@@ -251,7 +252,7 @@ class ValidatingArrayLoader implements LoaderInterface
                     }
                     if ($err = self::hasPackageNamingError($package, true)) {
                         $this->errors[] = $linkType.'.'.$err;
-                    } elseif (!preg_match('{^[A-Za-z0-9_./-]+$}', $package)) {
+                    } elseif (!Preg::isMatch('{^[A-Za-z0-9_./-]+$}', $package)) {
                         $this->warnings[] = $linkType.'.'.$package.' : invalid key, package names must be strings containing only [A-Za-z0-9_./-]';
                     }
                     if (!is_string($constraint)) {
@@ -353,10 +354,10 @@ class ValidatingArrayLoader implements LoaderInterface
                 if (isset($this->config[$srcType]['reference']) && !is_string($this->config[$srcType]['reference']) && !is_int($this->config[$srcType]['reference'])) {
                     $this->errors[] = $srcType . '.reference : should be a string or int, '.gettype($this->config[$srcType]['reference']).' given';
                 }
-                if (isset($this->config[$srcType]['reference']) && preg_match('{^\s*-}', (string) $this->config[$srcType]['reference'])) {
+                if (isset($this->config[$srcType]['reference']) && Preg::isMatch('{^\s*-}', (string) $this->config[$srcType]['reference'])) {
                     $this->errors[] = $srcType . '.reference : must not start with a "-", "'.$this->config[$srcType]['reference'].'" given';
                 }
-                if (preg_match('{^\s*-}', $this->config[$srcType]['url'])) {
+                if (Preg::isMatch('{^\s*-}', $this->config[$srcType]['url'])) {
                     $this->errors[] = $srcType . '.url : must not start with a "-", "'.$this->config[$srcType]['url'].'" given';
                 }
             }
@@ -448,7 +449,7 @@ class ValidatingArrayLoader implements LoaderInterface
             return null;
         }
 
-        if (!preg_match('{^[a-z0-9](?:[_.-]?[a-z0-9]+)*/[a-z0-9](?:(?:[_.]?|-{0,2})[a-z0-9]+)*$}iD', $name)) {
+        if (!Preg::isMatch('{^[a-z0-9](?:[_.-]?[a-z0-9]+)*/[a-z0-9](?:(?:[_.]?|-{0,2})[a-z0-9]+)*$}iD', $name)) {
             return $name.' is invalid, it should have a vendor name, a forward slash, and a package name. The vendor and package name can be words separated by -, . or _. The complete name should match "^[a-z0-9]([_.-]?[a-z0-9]+)*/[a-z0-9](([_.]?|-{0,2})[a-z0-9]+)*$".';
         }
 
@@ -458,16 +459,16 @@ class ValidatingArrayLoader implements LoaderInterface
             return $name.' is reserved, package and vendor names can not match any of: '.implode(', ', $reservedNames).'.';
         }
 
-        if (preg_match('{\.json$}', $name)) {
+        if (Preg::isMatch('{\.json$}', $name)) {
             return $name.' is invalid, package names can not end in .json, consider renaming it or perhaps using a -json suffix instead.';
         }
 
-        if (preg_match('{[A-Z]}', $name)) {
+        if (Preg::isMatch('{[A-Z]}', $name)) {
             if ($isLink) {
                 return $name.' is invalid, it should not contain uppercase characters. Please use '.strtolower($name).' instead.';
             }
 
-            $suggestName = preg_replace('{(?:([a-z])([A-Z])|([A-Z])([A-Z][a-z]))}', '\\1\\3-\\2\\4', $name);
+            $suggestName = Preg::replace('{(?:([a-z])([A-Z])|([A-Z])([A-Z][a-z]))}', '\\1\\3-\\2\\4', $name);
             $suggestName = strtolower($suggestName);
 
             return $name.' is invalid, it should not contain uppercase characters. We suggest using '.$suggestName.' instead.';
@@ -492,7 +493,7 @@ class ValidatingArrayLoader implements LoaderInterface
             return false;
         }
 
-        if (!preg_match('{^'.$regex.'$}u', $this->config[$property])) {
+        if (!Preg::isMatch('{^'.$regex.'$}u', $this->config[$property])) {
             $message = $property.' : invalid value ('.$this->config[$property].'), must match '.$regex;
             if ($mandatory) {
                 $this->errors[] = $message;
@@ -591,7 +592,7 @@ class ValidatingArrayLoader implements LoaderInterface
                 continue;
             }
 
-            if ($regex && !preg_match('{^'.$regex.'$}u', $value)) {
+            if ($regex && !Preg::isMatch('{^'.$regex.'$}u', $value)) {
                 $this->warnings[] = $property.'.'.$key.' : invalid value ('.$value.'), must match '.$regex;
                 unset($this->config[$property][$key]);
                 $pass = false;

src/Composer/Package/Locker.php

@@ -14,6 +14,7 @@ namespace Composer\Package;
 
 use Composer\Json\JsonFile;
 use Composer\Installer\InstallationManager;
+use Composer\Pcre\Preg;
 use Composer\Repository\LockArrayRepository;
 use Composer\Util\ProcessExecutor;
 use Composer\Package\Dumper\ArrayDumper;
@@ -492,13 +493,13 @@ class Locker
                 case 'git':
                     GitUtil::cleanEnv();
 
-                    if (0 === $this->process->execute('git log -n1 --pretty=%ct '.ProcessExecutor::escape($sourceRef).GitUtil::getNoShowSignatureFlag($this->process), $output, $path) && preg_match('{^\s*\d+\s*$}', $output)) {
+                    if (0 === $this->process->execute('git log -n1 --pretty=%ct '.ProcessExecutor::escape($sourceRef).GitUtil::getNoShowSignatureFlag($this->process), $output, $path) && Preg::isMatch('{^\s*\d+\s*$}', $output)) {
                         $datetime = new \DateTime('@'.trim($output), new \DateTimeZone('UTC'));
                     }
                     break;
 
                 case 'hg':
-                    if (0 === $this->process->execute('hg log --template "{date|hgdate}" -r '.ProcessExecutor::escape($sourceRef), $output, $path) && preg_match('{^\s*(\d+)\s*}', $output, $match)) {
+                    if (0 === $this->process->execute('hg log --template "{date|hgdate}" -r '.ProcessExecutor::escape($sourceRef), $output, $path) && Preg::isMatch('{^\s*(\d+)\s*}', $output, $match)) {
                         $datetime = new \DateTime('@'.$match[1], new \DateTimeZone('UTC'));
                     }
                     break;

src/Composer/Package/Package.php

@@ -13,6 +13,7 @@
 namespace Composer\Package;
 
 use Composer\Package\Version\VersionParser;
+use Composer\Pcre\Preg;
 use Composer\Util\ComposerMirror;
 
 /**
@@ -160,7 +161,7 @@ class Package extends BasePackage
             return null;
         }
 
-        return ltrim(preg_replace('{ (?:^|[\\\\/]+) \.\.? (?:[\\\\/]+|$) (?:\.\.? (?:[\\\\/]+|$) )*}x', '/', $this->targetDir), '/');
+        return ltrim(Preg::replace('{ (?:^|[\\\\/]+) \.\.? (?:[\\\\/]+|$) (?:\.\.? (?:[\\\\/]+|$) )*}x', '/', $this->targetDir), '/');
     }
 
     /**
@@ -703,10 +704,10 @@ class Package extends BasePackage
         // TODO generalize this a bit for self-managed/on-prem versions? Some kind of replace token in dist urls which allow this?
         if (
             $this->getDistUrl() !== null
-            && preg_match('{^https?://(?:(?:www\.)?bitbucket\.org|(api\.)?github\.com|(?:www\.)?gitlab\.com)/}i', $this->getDistUrl())
+            && Preg::isMatch('{^https?://(?:(?:www\.)?bitbucket\.org|(api\.)?github\.com|(?:www\.)?gitlab\.com)/}i', $this->getDistUrl())
         ) {
             $this->setDistReference($reference);
-            $this->setDistUrl(preg_replace('{(?<=/|sha=)[a-f0-9]{40}(?=/|$)}i', $reference, $this->getDistUrl()));
+            $this->setDistUrl(Preg::replace('{(?<=/|sha=)[a-f0-9]{40}(?=/|$)}i', $reference, $this->getDistUrl()));
         } elseif ($this->getDistReference()) { // update the dist reference if there was one, but if none was provided ignore it
             $this->setDistReference($reference);
         }

src/Composer/Package/Version/VersionGuesser.php

@@ -13,6 +13,7 @@
 namespace Composer\Package\Version;
 
 use Composer\Config;
+use Composer\Pcre\Preg;
 use Composer\Repository\Vcs\HgDriver;
 use Composer\IO\NullIO;
 use Composer\Semver\VersionParser as SemverVersionParser;
@@ -108,12 +109,12 @@ class VersionGuesser
             unset($versionData['feature_version'], $versionData['feature_pretty_version']);
         }
 
-        if ('-dev' === substr($versionData['version'], -4) && preg_match('{\.9{7}}', $versionData['version'])) {
+        if ('-dev' === substr($versionData['version'], -4) && Preg::isMatch('{\.9{7}}', $versionData['version'])) {
-            $versionData['pretty_version'] = preg_replace('{(\.9{7})+}', '.x', $versionData['version']);
+            $versionData['pretty_version'] = Preg::replace('{(\.9{7})+}', '.x', $versionData['version']);
         }
 
-        if (!empty($versionData['feature_version']) && '-dev' === substr($versionData['feature_version'], -4) && preg_match('{\.9{7}}', $versionData['feature_version'])) {
+        if (!empty($versionData['feature_version']) && '-dev' === substr($versionData['feature_version'], -4) && Preg::isMatch('{\.9{7}}', $versionData['feature_version'])) {
-            $versionData['feature_pretty_version'] = preg_replace('{(\.9{7})+}', '.x', $versionData['feature_version']);
+            $versionData['feature_pretty_version'] = Preg::replace('{(\.9{7})+}', '.x', $versionData['feature_version']);
         }
 
         return $versionData;
@@ -142,7 +143,7 @@ class VersionGuesser
 
             // find current branch and collect all branch names
             foreach ($this->process->splitLines($output) as $branch) {
-                if ($branch && preg_match('{^(?:\* ) *(\(no branch\)|\(detached from \S+\)|\(HEAD detached at \S+\)|\S+) *([a-f0-9]+) .*$}', $branch, $match)) {
+                if ($branch && Preg::isMatch('{^(?:\* ) *(\(no branch\)|\(detached from \S+\)|\(HEAD detached at \S+\)|\S+) *([a-f0-9]+) .*$}', $branch, $match)) {
                     if (
                         $match[1] === '(no branch)'
                         || strpos($match[1], '(detached ') === 0
@@ -163,8 +164,8 @@ class VersionGuesser
                     }
                 }
 
-                if ($branch && !preg_match('{^ *.+/HEAD }', $branch)) {
+                if ($branch && !Preg::isMatch('{^ *.+/HEAD }', $branch)) {
-                    if (preg_match('{^(?:\* )? *((?:remotes/(?:origin|upstream)/)?[^\s/]+) *([a-f0-9]+) .*$}', $branch, $match)) {
+                    if (Preg::isMatch('{^(?:\* )? *((?:remotes/(?:origin|upstream)/)?[^\s/]+) *([a-f0-9]+) .*$}', $branch, $match)) {
                         $branches[] = $match[1];
                     }
                 }
@@ -284,7 +285,7 @@ class VersionGuesser
         if (!isset($packageConfig['extra']['branch-alias'][$version])
             || strpos(json_encode($packageConfig), '"self.version"')
         ) {
-            $branch = preg_replace('{^dev-}', '', $version);
+            $branch = Preg::replace('{^dev-}', '', $version);
             $length = PHP_INT_MAX;
 
             // return directly, if branch is configured to be non-feature branch
@@ -307,7 +308,7 @@ class VersionGuesser
             });
 
             foreach ($branches as $candidate) {
-                $candidateVersion = preg_replace('{^remotes/\S+/}', '', $candidate);
+                $candidateVersion = Preg::replace('{^remotes/\S+/}', '', $candidate);
 
                 // do not compare against itself or other feature branches
                 if ($candidate === $branch || $this->isFeatureBranch($packageConfig, $candidateVersion)) {
@@ -346,7 +347,7 @@ class VersionGuesser
             $nonFeatureBranches = implode('|', $packageConfig['non-feature-branches']);
         }
 
-        return !preg_match('{^(' . $nonFeatureBranches . '|master|main|latest|next|current|support|tip|trunk|default|develop|\d+\..+)$}', $branchName, $match);
+        return !Preg::isMatch('{^(' . $nonFeatureBranches . '|master|main|latest|next|current|support|tip|trunk|default|develop|\d+\..+)$}', $branchName, $match);
     }
 
     /**
@@ -396,7 +397,7 @@ class VersionGuesser
 
             $urlPattern = '#<url>.*/(' . $trunkPath . '|(' . $branchesPath . '|' . $tagsPath . ')/(.*))</url>#';
 
-            if (preg_match($urlPattern, $output, $matches)) {
+            if (Preg::isMatch($urlPattern, $output, $matches)) {
                 if (isset($matches[2]) && ($branchesPath === $matches[2] || $tagsPath === $matches[2])) {
                     // we are in a branches path
                     $version = $this->versionParser->normalizeBranch($matches[3]);

src/Composer/Package/Version/VersionParser.php

@@ -12,6 +12,7 @@
 
 namespace Composer\Package\Version;
 
+use Composer\Pcre\Preg;
 use Composer\Repository\PlatformRepository;
 use Composer\Semver\VersionParser as SemverVersionParser;
 use Composer\Semver\Semver;
@@ -52,8 +53,8 @@ class VersionParser extends SemverVersionParser
         $result = array();
 
         for ($i = 0, $count = count($pairs); $i < $count; $i++) {
-            $pair = preg_replace('{^([^=: ]+)[=: ](.*)$}', '$1 $2', trim($pairs[$i]));
+            $pair = Preg::replace('{^([^=: ]+)[=: ](.*)$}', '$1 $2', trim($pairs[$i]));
-            if (false === strpos($pair, ' ') && isset($pairs[$i + 1]) && false === strpos($pairs[$i + 1], '/') && !preg_match('{(?<=[a-z0-9_/-])\*|\*(?=[a-z0-9_/-])}i', $pairs[$i + 1]) && !PlatformRepository::isPlatformPackage($pairs[$i + 1])) {
+            if (false === strpos($pair, ' ') && isset($pairs[$i + 1]) && false === strpos($pairs[$i + 1], '/') && !Preg::isMatch('{(?<=[a-z0-9_/-])\*|\*(?=[a-z0-9_/-])}i', $pairs[$i + 1]) && !PlatformRepository::isPlatformPackage($pairs[$i + 1])) {
                 $pair .= ' '.$pairs[$i + 1];
                 $i++;
             }

src/Composer/Package/Version/VersionSelector.php

@@ -21,6 +21,7 @@ use Composer\Package\PackageInterface;
 use Composer\Composer;
 use Composer\Package\Loader\ArrayLoader;
 use Composer\Package\Dumper\ArrayDumper;
+use Composer\Pcre\Preg;
 use Composer\Repository\RepositorySet;
 use Composer\Repository\PlatformRepository;
 use Composer\Semver\Constraint\Constraint;
@@ -192,7 +193,7 @@ class VersionSelector
         $dumper = new ArrayDumper();
         $extra = $loader->getBranchAlias($dumper->dump($package));
         if ($extra && $extra !== VersionParser::DEFAULT_BRANCH_ALIAS) {
-            $extra = preg_replace('{^(\d+\.\d+\.\d+)(\.9999999)-dev$}', '$1.0', $extra, -1, $count);
+            $extra = Preg::replace('{^(\d+\.\d+\.\d+)(\.9999999)-dev$}', '$1.0', $extra, -1, $count);
             if ($count) {
                 $extra = str_replace('.9999999', '.0', $extra);
 
@@ -217,7 +218,7 @@ class VersionSelector
         $semanticVersionParts = explode('.', $version);
 
         // check to see if we have a semver-looking version
-        if (count($semanticVersionParts) == 4 && preg_match('{^0\D?}', $semanticVersionParts[3])) {
+        if (count($semanticVersionParts) == 4 && Preg::isMatch('{^0\D?}', $semanticVersionParts[3])) {
             // remove the last parts (i.e. the patch version number and any extra)
             if ($semanticVersionParts[0] === '0') {
                 unset($semanticVersionParts[3]);

src/Composer/Platform/Version.php

@@ -12,6 +12,8 @@
 
 namespace Composer\Platform;
 
+use Composer\Pcre\Preg;
+
 /**
  * @author Lars Strojny <lars@strojny.net>
  */
@@ -26,7 +28,7 @@ class Version
     {
         $isFips = false;
 
-        if (!preg_match('/^(?<version>[0-9.]+)(?<patch>[a-z]{0,2})?(?<suffix>(?:-?(?:dev|pre|alpha|beta|rc|fips)[\d]*)*)?(?<garbage>-\w+)?$/', $opensslVersion, $matches)) {
+        if (!Preg::isMatch('/^(?<version>[0-9.]+)(?<patch>[a-z]{0,2})?(?<suffix>(?:-?(?:dev|pre|alpha|beta|rc|fips)[\d]*)*)?(?<garbage>-\w+)?$/', $opensslVersion, $matches)) {
             return null;
         }
 
@@ -43,7 +45,7 @@ class Version
      */
     public static function parseLibjpeg($libjpegVersion)
     {
-        if (!preg_match('/^(?<major>\d+)(?<minor>[a-z]*)$/', $libjpegVersion, $matches)) {
+        if (!Preg::isMatch('/^(?<major>\d+)(?<minor>[a-z]*)$/', $libjpegVersion, $matches)) {
             return null;
         }
 
@@ -56,7 +58,7 @@ class Version
      */
     public static function parseZoneinfoVersion($zoneinfoVersion)
     {
-        if (!preg_match('/^(?<year>\d{4})(?<revision>[a-z]*)$/', $zoneinfoVersion, $matches)) {
+        if (!Preg::isMatch('/^(?<year>\d{4})(?<revision>[a-z]*)$/', $zoneinfoVersion, $matches)) {
             return null;
         }
 

src/Composer/Plugin/PluginManager.php

@@ -18,6 +18,7 @@ use Composer\IO\IOInterface;
 use Composer\Package\CompletePackage;
 use Composer\Package\Package;
 use Composer\Package\Version\VersionParser;
+use Composer\Pcre\Preg;
 use Composer\Repository\RepositoryInterface;
 use Composer\Repository\InstalledRepository;
 use Composer\Repository\RootPackageRepository;
@@ -173,7 +174,7 @@ class PluginManager
                 return;
             }
 
-            if ($package->getName() === 'symfony/flex' && preg_match('{^[0-9.]+$}', $package->getVersion()) && version_compare($package->getVersion(), '1.9.8', '<')) {
+            if ($package->getName() === 'symfony/flex' && Preg::isMatch('{^[0-9.]+$}', $package->getVersion()) && version_compare($package->getVersion(), '1.9.8', '<')) {
                 $this->io->writeError('<warning>The "' . $package->getName() . '" plugin '.($isGlobalPlugin ? '(installed globally) ' : '').'was skipped because it is not compatible with Composer 2+. Make sure to update it to version 1.9.8 or greater.</warning>');
 
                 return;
@@ -234,13 +235,13 @@ class PluginManager
                 if ($separatorPos) {
                     $className = substr($class, $separatorPos + 1);
                 }
-                $code = preg_replace('{^((?:final\s+)?(?:\s*))class\s+('.preg_quote($className).')}mi', '$1class $2_composer_tmp'.self::$classCounter, $code, 1);
+                $code = Preg::replace('{^((?:final\s+)?(?:\s*))class\s+('.preg_quote($className).')}mi', '$1class $2_composer_tmp'.self::$classCounter, $code, 1);
                 $code = strtr($code, array(
                     '__FILE__' => var_export($path, true),
                     '__DIR__' => var_export(dirname($path), true),
                     '__CLASS__' => var_export($class, true),
                 ));
-                $code = preg_replace('/^\s*<\?(php)?/i', '', $code, 1);
+                $code = Preg::replace('/^\s*<\?(php)?/i', '', $code, 1);
                 eval($code);
                 $class .= '_composer_tmp'.self::$classCounter;
                 self::$classCounter++;

src/Composer/Question/StrictConfirmationQuestion.php

@@ -12,6 +12,7 @@
 
 namespace Composer\Question;
 
+use Composer\Pcre\Preg;
 use Symfony\Component\Console\Exception\InvalidArgumentException;
 use Symfony\Component\Console\Question\Question;
 
@@ -66,11 +67,11 @@ class StrictConfirmationQuestion extends Question
                 return $default;
             }
 
-            if (preg_match($trueRegex, $answer)) {
+            if (Preg::isMatch($trueRegex, $answer)) {
                 return true;
             }
 
-            if (preg_match($falseRegex, $answer)) {
+            if (Preg::isMatch($falseRegex, $answer)) {
                 return false;
             }
 

src/Composer/Repository/ArrayRepository.php

@@ -20,6 +20,7 @@ use Composer\Package\PackageInterface;
 use Composer\Package\CompletePackageInterface;
 use Composer\Package\Version\VersionParser;
 use Composer\Package\Version\StabilityFilter;
+use Composer\Pcre\Preg;
 use Composer\Semver\Constraint\ConstraintInterface;
 use Composer\Semver\Constraint\Constraint;
 
@@ -147,7 +148,7 @@ class ArrayRepository implements RepositoryInterface
      */
     public function search($query, $mode = 0, $type = null)
     {
-        $regex = '{(?:'.implode('|', preg_split('{\s+}', $query)).')}i';
+        $regex = '{(?:'.implode('|', Preg::split('{\s+}', $query)).')}i';
 
         $matches = array();
         foreach ($this->getPackages() as $package) {
@@ -155,8 +156,8 @@ class ArrayRepository implements RepositoryInterface
             if (isset($matches[$name])) {
                 continue;
             }
-            if (preg_match($regex, $name)
+            if (Preg::isMatch($regex, $name)
-                || ($mode === self::SEARCH_FULLTEXT && $package instanceof CompletePackageInterface && preg_match($regex, implode(' ', (array) $package->getKeywords()) . ' ' . $package->getDescription()))
+                || ($mode === self::SEARCH_FULLTEXT && $package instanceof CompletePackageInterface && Preg::isMatch($regex, implode(' ', (array) $package->getKeywords()) . ' ' . $package->getDescription()))
             ) {
                 if (null !== $type && $package->getType() !== $type) {
                     continue;

src/Composer/Repository/ComposerRepository.php

@@ -24,6 +24,7 @@ use Composer\Json\JsonFile;
 use Composer\Cache;
 use Composer\Config;
 use Composer\IO\IOInterface;
+use Composer\Pcre\Preg;
 use Composer\Plugin\PostFileDownloadEvent;
 use Composer\Semver\CompilingMatcher;
 use Composer\Util\HttpDownloader;
@@ -135,7 +136,7 @@ class ComposerRepository extends ArrayRepository implements ConfigurableReposito
     public function __construct(array $repoConfig, IOInterface $io, Config $config, HttpDownloader $httpDownloader, EventDispatcher $eventDispatcher = null)
     {
         parent::__construct();
-        if (!preg_match('{^[\w.]+\??://}', $repoConfig['url'])) {
+        if (!Preg::isMatch('{^[\w.]+\??://}', $repoConfig['url'])) {
             // assume http as the default protocol
             $repoConfig['url'] = 'http://'.$repoConfig['url'];
         }
@@ -161,13 +162,13 @@ class ComposerRepository extends ArrayRepository implements ConfigurableReposito
         $this->url = $repoConfig['url'];
 
         // force url for packagist.org to repo.packagist.org
-        if (preg_match('{^(?P<proto>https?)://packagist\.org/?$}i', $this->url, $match)) {
+        if (Preg::isMatch('{^(?P<proto>https?)://packagist\.org/?$}i', $this->url, $match)) {
             $this->url = $match['proto'].'://repo.packagist.org';
         }
 
-        $this->baseUrl = rtrim(preg_replace('{(?:/[^/\\\\]+\.json)?(?:[?#].*)?$}', '', $this->url), '/');
+        $this->baseUrl = rtrim(Preg::replace('{(?:/[^/\\\\]+\.json)?(?:[?#].*)?$}', '', $this->url), '/');
         $this->io = $io;
-        $this->cache = new Cache($io, $config->get('cache-repo-dir').'/'.preg_replace('{[^a-z0-9.]}i', '-', Url::sanitize($this->url)), 'a-z0-9.$~');
+        $this->cache = new Cache($io, $config->get('cache-repo-dir').'/'.Preg::replace('{[^a-z0-9.]}i', '-', Url::sanitize($this->url)), 'a-z0-9.$~');
         $this->cache->setReadOnly($config->get('cache-read-only'));
         $this->versionParser = new VersionParser();
         $this->loader = new ArrayLoader($this->versionParser);
@@ -350,7 +351,7 @@ class ComposerRepository extends ArrayRepository implements ConfigurableReposito
         if (null !== $packageFilter) {
             $packageFilterRegex = '{^'.str_replace('\\*', '.*?', preg_quote($packageFilter)).'$}i';
             $packageFilterCb = function ($name) use ($packageFilterRegex) {
-                return (bool) preg_match($packageFilterRegex, $name);
+                return Preg::isMatch($packageFilterRegex, $name);
             };
         }
 
@@ -490,11 +491,11 @@ class ComposerRepository extends ArrayRepository implements ConfigurableReposito
 
         if ($this->hasProviders() || $this->lazyProvidersUrl) {
             $results = array();
-            $regex = '{(?:'.implode('|', preg_split('{\s+}', $query)).')}i';
+            $regex = '{(?:'.implode('|', Preg::split('{\s+}', $query)).')}i';
 
             $packageNames = $this->getPackageNames();
 
-            foreach (preg_grep($regex, $packageNames) as $name) {
+            foreach (Preg::grep($regex, $packageNames) as $name) {
                 $results[] = array('name' => $name, 'description' => '');
             }
 
@@ -793,7 +794,7 @@ class ComposerRepository extends ArrayRepository implements ConfigurableReposito
         foreach ($packageNames as $name => $constraint) {
             $name = strtolower($name);
 
-            $realName = preg_replace('{~dev$}', '', $name);
+            $realName = Preg::replace('{~dev$}', '', $name);
             // skip platform packages, root package and composer-plugin-api
             if (PlatformRepository::isPlatformPackage($realName) || '__root__' === $realName) {
                 continue;
@@ -1044,7 +1045,7 @@ class ComposerRepository extends ArrayRepository implements ConfigurableReposito
     private function canonicalizeUrl($url)
     {
         if ('/' === $url[0]) {
-            if (preg_match('{^[^:]++://[^/]*+}', $this->url, $matches)) {
+            if (Preg::isMatch('{^[^:]++://[^/]*+}', $this->url, $matches)) {
                 return $matches[0] . $url;
             }
 
@@ -1204,7 +1205,7 @@ class ComposerRepository extends ArrayRepository implements ConfigurableReposito
         }
 
         // url-encode $ signs in URLs as bad proxies choke on them
-        if (($pos = strpos($filename, '$')) && preg_match('{^https?://}i', $filename)) {
+        if (($pos = strpos($filename, '$')) && Preg::isMatch('{^https?://}i', $filename)) {
             $filename = substr($filename, 0, $pos) . '%24' . substr($filename, $pos + 1);
         }
 
@@ -1509,7 +1510,7 @@ class ComposerRepository extends ArrayRepository implements ConfigurableReposito
 
         if (is_array($this->availablePackagePatterns)) {
             foreach ($this->availablePackagePatterns as $providerRegex) {
-                if (preg_match($providerRegex, $name)) {
+                if (Preg::isMatch($providerRegex, $name)) {
                     return true;
                 }
             }

src/Composer/Repository/FilterRepository.php

@@ -14,6 +14,7 @@ namespace Composer\Repository;
 
 use Composer\Package\PackageInterface;
 use Composer\Package\BasePackage;
+use Composer\Pcre\Preg;
 
 /**
  * Filters which packages are seen as canonical on this repo by loadPackages
@@ -202,9 +203,9 @@ class FilterRepository implements RepositoryInterface
         }
 
         if ($this->only) {
-            return (bool) preg_match($this->only, $name);
+            return Preg::isMatch($this->only, $name);
         }
 
-        return !preg_match($this->exclude, $name);
+        return !Preg::isMatch($this->exclude, $name);
     }
 }

src/Composer/Repository/PackageRepository.php

@@ -14,6 +14,7 @@ namespace Composer\Repository;
 
 use Composer\Package\Loader\ArrayLoader;
 use Composer\Package\Loader\ValidatingArrayLoader;
+use Composer\Pcre\Preg;
 
 /**
  * Package repository.
@@ -62,6 +63,6 @@ class PackageRepository extends ArrayRepository
 
     public function getRepoName()
     {
-        return preg_replace('{^array }', 'package ', parent::getRepoName());
+        return Preg::replace('{^array }', 'package ', parent::getRepoName());
     }
 }

src/Composer/Repository/PathRepository.php

@@ -18,6 +18,7 @@ use Composer\Json\JsonFile;
 use Composer\Package\Loader\ArrayLoader;
 use Composer\Package\Version\VersionGuesser;
 use Composer\Package\Version\VersionParser;
+use Composer\Pcre\Preg;
 use Composer\Util\Platform;
 use Composer\Util\ProcessExecutor;
 use Composer\Util\Filesystem;
@@ -141,9 +142,9 @@ class PathRepository extends ArrayRepository implements ConfigurableRepositoryIn
         $urlMatches = $this->getUrlMatches();
 
         if (empty($urlMatches)) {
-            if (preg_match('{[*{}]}', $this->url)) {
+            if (Preg::isMatch('{[*{}]}', $this->url)) {
                 $url = $this->url;
-                while (preg_match('{[*{}]}', $url)) {
+                while (Preg::isMatch('{[*{}]}', $url)) {
                     $url = dirname($url);
                 }
                 // the parent directory before any wildcard exists, so we assume it is correctly configured but simply empty

src/Composer/Repository/PlatformRepository.php

@@ -18,6 +18,7 @@ use Composer\Package\CompletePackageInterface;
 use Composer\Package\Link;
 use Composer\Package\PackageInterface;
 use Composer\Package\Version\VersionParser;
+use Composer\Pcre\Preg;
 use Composer\Platform\HhvmDetector;
 use Composer\Platform\Runtime;
 use Composer\Platform\Version;
@@ -146,7 +147,7 @@ class PlatformRepository extends ArrayRepository
             $prettyVersion = $this->runtime->getConstant('PHP_VERSION');
             $version = $this->versionParser->normalize($prettyVersion);
         } catch (\UnexpectedValueException $e) {
-            $prettyVersion = preg_replace('#^([^~+-]+).*$#', '$1', $this->runtime->getConstant('PHP_VERSION'));
+            $prettyVersion = Preg::replace('#^([^~+-]+).*$#', '$1', $this->runtime->getConstant('PHP_VERSION'));
             $version = $this->versionParser->normalize($prettyVersion);
         }
 
@@ -205,12 +206,12 @@ class PlatformRepository extends ArrayRepository
                     $info = $this->runtime->getExtensionInfo($name);
 
                     // librabbitmq version => 0.9.0
-                    if (preg_match('/^librabbitmq version => (?<version>.+)$/im', $info, $librabbitmqMatches)) {
+                    if (Preg::isMatch('/^librabbitmq version => (?<version>.+)$/im', $info, $librabbitmqMatches)) {
                         $this->addLibrary($name.'-librabbitmq', $librabbitmqMatches['version'], 'AMQP librabbitmq version');
                     }
 
                     // AMQP protocol version => 0-9-1
-                    if (preg_match('/^AMQP protocol version => (?<version>.+)$/im', $info, $protocolMatches)) {
+                    if (Preg::isMatch('/^AMQP protocol version => (?<version>.+)$/im', $info, $protocolMatches)) {
                         $this->addLibrary($name.'-protocol', str_replace('-', '.', $protocolMatches['version']), 'AMQP protocol version');
                     }
                     break;
@@ -219,7 +220,7 @@ class PlatformRepository extends ArrayRepository
                     $info = $this->runtime->getExtensionInfo($name);
 
                     // BZip2 Version => 1.0.6, 6-Sept-2010
-                    if (preg_match('/^BZip2 Version => (?<version>.*),/im', $info, $matches)) {
+                    if (Preg::isMatch('/^BZip2 Version => (?<version>.*),/im', $info, $matches)) {
                         $this->addLibrary($name, $matches['version']);
                     }
                     break;
@@ -231,7 +232,7 @@ class PlatformRepository extends ArrayRepository
                     $info = $this->runtime->getExtensionInfo($name);
 
                     // SSL Version => OpenSSL/1.0.1t
-                    if (preg_match('{^SSL Version => (?<library>[^/]+)/(?<version>.+)$}im', $info, $sslMatches)) {
+                    if (Preg::isMatch('{^SSL Version => (?<library>[^/]+)/(?<version>.+)$}im', $info, $sslMatches)) {
                         $library = strtolower($sslMatches['library']);
                         if ($library === 'openssl') {
                             $parsedVersion = Version::parseOpenssl($sslMatches['version'], $isFips);
@@ -242,12 +243,12 @@ class PlatformRepository extends ArrayRepository
                     }
 
                     // libSSH Version => libssh2/1.4.3
-                    if (preg_match('{^libSSH Version => (?<library>[^/]+)/(?<version>.+?)(?:/.*)?$}im', $info, $sshMatches)) {
+                    if (Preg::isMatch('{^libSSH Version => (?<library>[^/]+)/(?<version>.+?)(?:/.*)?$}im', $info, $sshMatches)) {
                         $this->addLibrary($name.'-'.strtolower($sshMatches['library']), $sshMatches['version'], 'curl '.$sshMatches['library'].' version');
                     }
 
                     // ZLib Version => 1.2.8
-                    if (preg_match('{^ZLib Version => (?<version>.+)$}im', $info, $zlibMatches)) {
+                    if (Preg::isMatch('{^ZLib Version => (?<version>.+)$}im', $info, $zlibMatches)) {
                         $this->addLibrary($name.'-zlib', $zlibMatches['version'], 'curl zlib version');
                     }
                     break;
@@ -256,14 +257,14 @@ class PlatformRepository extends ArrayRepository
                     $info = $this->runtime->getExtensionInfo($name);
 
                     // timelib version => 2018.03
-                    if (preg_match('/^timelib version => (?<version>.+)$/im', $info, $timelibMatches)) {
+                    if (Preg::isMatch('/^timelib version => (?<version>.+)$/im', $info, $timelibMatches)) {
                         $this->addLibrary($name.'-timelib', $timelibMatches['version'], 'date timelib version');
                     }
 
                     // Timezone Database => internal
-                    if (preg_match('/^Timezone Database => (?<source>internal|external)$/im', $info, $zoneinfoSourceMatches)) {
+                    if (Preg::isMatch('/^Timezone Database => (?<source>internal|external)$/im', $info, $zoneinfoSourceMatches)) {
                         $external = $zoneinfoSourceMatches['source'] === 'external';
-                        if (preg_match('/^"Olson" Timezone Database Version => (?<version>.+?)(\.system)?$/im', $info, $zoneinfoMatches)) {
+                        if (Preg::isMatch('/^"Olson" Timezone Database Version => (?<version>.+?)(\.system)?$/im', $info, $zoneinfoMatches)) {
                             // If the timezonedb is provided by ext/timezonedb, register that version as a replacement
                             if ($external && in_array('timezonedb', $loadedExtensions, true)) {
                                 $this->addLibrary('timezonedb-zoneinfo', $zoneinfoMatches['version'], 'zoneinfo ("Olson") database for date (replaced by timezonedb)', array($name.'-zoneinfo'));
@@ -278,7 +279,7 @@ class PlatformRepository extends ArrayRepository
                     $info = $this->runtime->getExtensionInfo($name);
 
                     // libmagic => 537
-                    if (preg_match('/^libmagic => (?<version>.+)$/im', $info, $magicMatches)) {
+                    if (Preg::isMatch('/^libmagic => (?<version>.+)$/im', $info, $magicMatches)) {
                         $this->addLibrary($name.'-libmagic', $magicMatches['version'], 'fileinfo libmagic version');
                     }
                     break;
@@ -288,19 +289,19 @@ class PlatformRepository extends ArrayRepository
 
                     $info = $this->runtime->getExtensionInfo($name);
 
-                    if (preg_match('/^libJPEG Version => (?<version>.+?)(?: compatible)?$/im', $info, $libjpegMatches)) {
+                    if (Preg::isMatch('/^libJPEG Version => (?<version>.+?)(?: compatible)?$/im', $info, $libjpegMatches)) {
                         $this->addLibrary($name.'-libjpeg', Version::parseLibjpeg($libjpegMatches['version']), 'libjpeg version for gd');
                     }
 
-                    if (preg_match('/^libPNG Version => (?<version>.+)$/im', $info, $libpngMatches)) {
+                    if (Preg::isMatch('/^libPNG Version => (?<version>.+)$/im', $info, $libpngMatches)) {
                         $this->addLibrary($name.'-libpng', $libpngMatches['version'], 'libpng version for gd');
                     }
 
-                    if (preg_match('/^FreeType Version => (?<version>.+)$/im', $info, $freetypeMatches)) {
+                    if (Preg::isMatch('/^FreeType Version => (?<version>.+)$/im', $info, $freetypeMatches)) {
                         $this->addLibrary($name.'-freetype', $freetypeMatches['version'], 'freetype version for gd');
                     }
 
-                    if (preg_match('/^libXpm Version => (?<versionId>\d+)$/im', $info, $libxpmMatches)) {
+                    if (Preg::isMatch('/^libXpm Version => (?<versionId>\d+)$/im', $info, $libxpmMatches)) {
                         $this->addLibrary($name.'-libxpm', Version::convertLibxpmVersionId($libxpmMatches['versionId']), 'libxpm version for gd');
                     }
 
@@ -321,12 +322,12 @@ class PlatformRepository extends ArrayRepository
                     // Truthy check is for testing only so we can make the condition fail
                     if ($this->runtime->hasConstant('INTL_ICU_VERSION')) {
                         $this->addLibrary('icu', $this->runtime->getConstant('INTL_ICU_VERSION'), $description);
-                    } elseif (preg_match('/^ICU version => (?<version>.+)$/im', $info, $matches)) {
+                    } elseif (Preg::isMatch('/^ICU version => (?<version>.+)$/im', $info, $matches)) {
                         $this->addLibrary('icu', $matches['version'], $description);
                     }
 
                     // ICU TZData version => 2019c
-                    if (preg_match('/^ICU TZData version => (?<version>.*)$/im', $info, $zoneinfoMatches)) {
+                    if (Preg::isMatch('/^ICU TZData version => (?<version>.*)$/im', $info, $zoneinfoMatches)) {
                         $this->addLibrary('icu-zoneinfo', Version::parseZoneinfoVersion($zoneinfoMatches['version']), 'zoneinfo ("Olson") database for icu');
                     }
 
@@ -345,7 +346,7 @@ class PlatformRepository extends ArrayRepository
                     $imageMagickVersion = $this->runtime->construct('Imagick')->getVersion();
                     // 6.x: ImageMagick 6.2.9 08/24/06 Q16 http://www.imagemagick.org
                     // 7.x: ImageMagick 7.0.8-34 Q16 x86_64 2019-03-23 https://imagemagick.org
-                    preg_match('/^ImageMagick (?<version>[\d.]+)(?:-(?<patch>\d+))?/', $imageMagickVersion['versionString'], $matches);
+                    Preg::match('/^ImageMagick (?<version>[\d.]+)(?:-(?<patch>\d+))?/', $imageMagickVersion['versionString'], $matches);
                     $version = $matches['version'];
                     if (isset($matches['patch'])) {
                         $version .= '.'.$matches['patch'];
@@ -357,7 +358,7 @@ class PlatformRepository extends ArrayRepository
                 case 'ldap':
                     $info = $this->runtime->getExtensionInfo($name);
 
-                    if (preg_match('/^Vendor Version => (?<versionId>\d+)$/im', $info, $matches) && preg_match('/^Vendor Name => (?<vendor>.+)$/im', $info, $vendorMatches)) {
+                    if (Preg::isMatch('/^Vendor Version => (?<versionId>\d+)$/im', $info, $matches) && Preg::isMatch('/^Vendor Name => (?<vendor>.+)$/im', $info, $vendorMatches)) {
                         $this->addLibrary($name.'-'.strtolower($vendorMatches['vendor']), Version::convertOpenldapVersionId($matches['versionId']), $vendorMatches['vendor'].' version of ldap');
                     }
                     break;
@@ -375,7 +376,7 @@ class PlatformRepository extends ArrayRepository
                     $info = $this->runtime->getExtensionInfo($name);
 
                     // libmbfl version => 1.3.2
-                    if (preg_match('/^libmbfl version => (?<version>.+)$/im', $info, $libmbflMatches)) {
+                    if (Preg::isMatch('/^libmbfl version => (?<version>.+)$/im', $info, $libmbflMatches)) {
                         $this->addLibrary($name.'-libmbfl', $libmbflMatches['version'], 'mbstring libmbfl version');
                     }
 
@@ -384,7 +385,7 @@ class PlatformRepository extends ArrayRepository
 
                     // Multibyte regex (oniguruma) version => 5.9.5
                     // oniguruma version => 6.9.0
-                    } elseif (preg_match('/^(?:oniguruma|Multibyte regex \(oniguruma\)) version => (?<version>.+)$/im', $info, $onigurumaMatches)) {
+                    } elseif (Preg::isMatch('/^(?:oniguruma|Multibyte regex \(oniguruma\)) version => (?<version>.+)$/im', $info, $onigurumaMatches)) {
                         $this->addLibrary($name.'-oniguruma', $onigurumaMatches['version'], 'mbstring oniguruma version');
                     }
 
@@ -394,26 +395,26 @@ class PlatformRepository extends ArrayRepository
                     $info = $this->runtime->getExtensionInfo($name);
 
                     // libmemcached version => 1.0.18
-                    if (preg_match('/^libmemcached version => (?<version>.+)$/im', $info, $matches)) {
+                    if (Preg::isMatch('/^libmemcached version => (?<version>.+)$/im', $info, $matches)) {
                         $this->addLibrary($name.'-libmemcached', $matches['version'], 'libmemcached version');
                     }
                     break;
 
                 case 'openssl':
                     // OpenSSL 1.1.1g  21 Apr 2020
-                    if (preg_match('{^(?:OpenSSL|LibreSSL)?\s*(?<version>\S+)}i', $this->runtime->getConstant('OPENSSL_VERSION_TEXT'), $matches)) {
+                    if (Preg::isMatch('{^(?:OpenSSL|LibreSSL)?\s*(?<version>\S+)}i', $this->runtime->getConstant('OPENSSL_VERSION_TEXT'), $matches)) {
                         $parsedVersion = Version::parseOpenssl($matches['version'], $isFips);
                         $this->addLibrary($name.($isFips ? '-fips' : ''), $parsedVersion, $this->runtime->getConstant('OPENSSL_VERSION_TEXT'), array(), $isFips ? array($name) : array());
                     }
                     break;
 
                 case 'pcre':
-                    $this->addLibrary($name, preg_replace('{^(\S+).*}', '$1', $this->runtime->getConstant('PCRE_VERSION')));
+                    $this->addLibrary($name, Preg::replace('{^(\S+).*}', '$1', $this->runtime->getConstant('PCRE_VERSION')));
 
                     $info = $this->runtime->getExtensionInfo($name);
 
                     // PCRE Unicode Version => 12.1.0
-                    if (preg_match('/^PCRE Unicode Version => (?<version>.+)$/im', $info, $pcreUnicodeMatches)) {
+                    if (Preg::isMatch('/^PCRE Unicode Version => (?<version>.+)$/im', $info, $pcreUnicodeMatches)) {
                         $this->addLibrary($name.'-unicode', $pcreUnicodeMatches['version'], 'PCRE Unicode version support');
                     }
 
@@ -423,7 +424,7 @@ class PlatformRepository extends ArrayRepository
                 case 'pdo_mysql':
                     $info = $this->runtime->getExtensionInfo($name);
 
-                    if (preg_match('/^(?:Client API version|Version) => mysqlnd (?<version>.+?) /mi', $info, $matches)) {
+                    if (Preg::isMatch('/^(?:Client API version|Version) => mysqlnd (?<version>.+?) /mi', $info, $matches)) {
                         $this->addLibrary($name.'-mysqlnd', $matches['version'], 'mysqlnd library version for '.$name);
                     }
                     break;
@@ -431,11 +432,11 @@ class PlatformRepository extends ArrayRepository
                 case 'mongodb':
                     $info = $this->runtime->getExtensionInfo($name);
 
-                    if (preg_match('/^libmongoc bundled version => (?<version>.+)$/im', $info, $libmongocMatches)) {
+                    if (Preg::isMatch('/^libmongoc bundled version => (?<version>.+)$/im', $info, $libmongocMatches)) {
                         $this->addLibrary($name.'-libmongoc', $libmongocMatches['version'], 'libmongoc version of mongodb');
                     }
 
-                    if (preg_match('/^libbson bundled version => (?<version>.+)$/im', $info, $libbsonMatches)) {
+                    if (Preg::isMatch('/^libbson bundled version => (?<version>.+)$/im', $info, $libbsonMatches)) {
                         $this->addLibrary($name.'-libbson', $libbsonMatches['version'], 'libbson version of mongodb');
                     }
                     break;
@@ -444,7 +445,7 @@ class PlatformRepository extends ArrayRepository
                 case 'pdo_pgsql':
                     $info = $this->runtime->getExtensionInfo($name);
 
-                    if (preg_match('/^PostgreSQL\(libpq\) Version => (?<version>.*)$/im', $info, $matches)) {
+                    if (Preg::isMatch('/^PostgreSQL\(libpq\) Version => (?<version>.*)$/im', $info, $matches)) {
                         $this->addLibrary($name.'-libpq', $matches['version'], 'libpq for '.$name);
                     }
                     break;
@@ -460,7 +461,7 @@ class PlatformRepository extends ArrayRepository
                 case 'pdo_sqlite':
                     $info = $this->runtime->getExtensionInfo($name);
 
-                    if (preg_match('/^SQLite Library => (?<version>.+)$/im', $info, $matches)) {
+                    if (Preg::isMatch('/^SQLite Library => (?<version>.+)$/im', $info, $matches)) {
                         $this->addLibrary($name.'-sqlite', $matches['version']);
                     }
                     break;
@@ -468,7 +469,7 @@ class PlatformRepository extends ArrayRepository
                 case 'ssh2':
                     $info = $this->runtime->getExtensionInfo($name);
 
-                    if (preg_match('/^libssh2 version => (?<version>.+)$/im', $info, $matches)) {
+                    if (Preg::isMatch('/^libssh2 version => (?<version>.+)$/im', $info, $matches)) {
                         $this->addLibrary($name.'-libssh2', $matches['version']);
                     }
                     break;
@@ -477,7 +478,7 @@ class PlatformRepository extends ArrayRepository
                     $this->addLibrary('libxslt', $this->runtime->getConstant('LIBXSLT_DOTTED_VERSION'), null, array('xsl'));
 
                     $info = $this->runtime->getExtensionInfo('xsl');
-                    if (preg_match('/^libxslt compiled against libxml Version => (?<version>.+)$/im', $info, $matches)) {
+                    if (Preg::isMatch('/^libxslt compiled against libxml Version => (?<version>.+)$/im', $info, $matches)) {
                         $this->addLibrary('libxslt-libxml', $matches['version'], 'libxml version libxslt is compiled against');
                     }
                     break;
@@ -485,7 +486,7 @@ class PlatformRepository extends ArrayRepository
                 case 'yaml':
                     $info = $this->runtime->getExtensionInfo('yaml');
 
-                    if (preg_match('/^LibYAML Version => (?<version>.+)$/im', $info, $matches)) {
+                    if (Preg::isMatch('/^LibYAML Version => (?<version>.+)$/im', $info, $matches)) {
                         $this->addLibrary($name.'-libyaml', $matches['version'], 'libyaml version of yaml');
                     }
                     break;
@@ -501,7 +502,7 @@ class PlatformRepository extends ArrayRepository
                         $this->addLibrary($name, $this->runtime->getConstant('ZLIB_VERSION'));
 
                     // Linked Version => 1.2.8
-                    } elseif (preg_match('/^Linked Version => (?<version>.+)$/im', $this->runtime->getExtensionInfo($name), $matches)) {
+                    } elseif (Preg::isMatch('/^Linked Version => (?<version>.+)$/im', $this->runtime->getExtensionInfo($name), $matches)) {
                         $this->addLibrary($name, $matches['version']);
                     }
                     break;
@@ -517,7 +518,7 @@ class PlatformRepository extends ArrayRepository
                 $prettyVersion = $hhvmVersion;
                 $version = $this->versionParser->normalize($prettyVersion);
             } catch (\UnexpectedValueException $e) {
-                $prettyVersion = preg_replace('#^([^~+-]+).*$#', '$1', $hhvmVersion);
+                $prettyVersion = Preg::replace('#^([^~+-]+).*$#', '$1', $hhvmVersion);
                 $version = $this->versionParser->normalize($prettyVersion);
             }
 
@@ -625,7 +626,7 @@ class PlatformRepository extends ArrayRepository
             $version = $this->versionParser->normalize($prettyVersion);
         } catch (\UnexpectedValueException $e) {
             $extraDescription = ' (actual version: '.$prettyVersion.')';
-            if (preg_match('{^(\d+\.\d+\.\d+(?:\.\d+)?)}', $prettyVersion, $match)) {
+            if (Preg::isMatch('{^(\d+\.\d+\.\d+(?:\.\d+)?)}', $prettyVersion, $match)) {
                 $prettyVersion = $match[1];
             } else {
                 $prettyVersion = '0';
@@ -709,7 +710,7 @@ class PlatformRepository extends ArrayRepository
             return $cache[$name];
         }
 
-        return $cache[$name] = (bool) preg_match(PlatformRepository::PLATFORM_PACKAGE_REGEX, $name);
+        return $cache[$name] = Preg::isMatch(PlatformRepository::PLATFORM_PACKAGE_REGEX, $name);
     }
 
     /**

src/Composer/Repository/RepositoryFactory.php

@@ -16,6 +16,7 @@ use Composer\Factory;
 use Composer\IO\IOInterface;
 use Composer\Config;
 use Composer\EventDispatcher\EventDispatcher;
+use Composer\Pcre\Preg;
 use Composer\Util\HttpDownloader;
 use Composer\Util\ProcessExecutor;
 use Composer\Json\JsonFile;
@@ -179,7 +180,7 @@ class RepositoryFactory
      */
     public static function generateRepositoryName($index, array $repo, array $existingRepos)
     {
-        $name = is_int($index) && isset($repo['url']) ? preg_replace('{^https?://}i', '', $repo['url']) : $index;
+        $name = is_int($index) && isset($repo['url']) ? Preg::replace('{^https?://}i', '', $repo['url']) : $index;
         while (isset($existingRepos[$name])) {
             $name .= '2';
         }

src/Composer/Repository/Vcs/FossilDriver.php

@@ -14,6 +14,7 @@ namespace Composer\Repository\Vcs;
 
 use Composer\Cache;
 use Composer\Config;
+use Composer\Pcre\Preg;
 use Composer\Util\ProcessExecutor;
 use Composer\Util\Filesystem;
 use Composer\IO\IOInterface;
@@ -54,7 +55,7 @@ class FossilDriver extends VcsDriver
                 throw new \RuntimeException('FossilDriver requires a usable cache directory, and it looks like you set it to be disabled');
             }
 
-            $localName = preg_replace('{[^a-z0-9]}i', '-', $this->url);
+            $localName = Preg::replace('{[^a-z0-9]}i', '-', $this->url);
             $this->repoFile = $this->config->get('cache-repo-dir') . '/' . $localName . '.fossil';
             $this->checkoutDir = $this->config->get('cache-vcs-dir') . '/' . $localName . '/';
 
@@ -208,7 +209,7 @@ class FossilDriver extends VcsDriver
 
             $this->process->execute('fossil branch list', $output, $this->checkoutDir);
             foreach ($this->process->splitLines($output) as $branch) {
-                $branch = trim(preg_replace('/^\*/', '', trim($branch)));
+                $branch = trim(Preg::replace('/^\*/', '', trim($branch)));
                 $branches[$branch] = $branch;
             }
 
@@ -223,11 +224,11 @@ class FossilDriver extends VcsDriver
      */
     public static function supports(IOInterface $io, Config $config, $url, $deep = false)
     {
-        if (preg_match('#(^(?:https?|ssh)://(?:[^@]@)?(?:chiselapp\.com|fossil\.))#i', $url)) {
+        if (Preg::isMatch('#(^(?:https?|ssh)://(?:[^@]@)?(?:chiselapp\.com|fossil\.))#i', $url)) {
             return true;
         }
 
-        if (preg_match('!/fossil/|\.fossil!', $url)) {
+        if (Preg::isMatch('!/fossil/|\.fossil!', $url)) {
             return true;
         }
 

src/Composer/Repository/Vcs/GitBitbucketDriver.php

@@ -17,6 +17,7 @@ use Composer\IO\IOInterface;
 use Composer\Cache;
 use Composer\Downloader\TransportException;
 use Composer\Json\JsonFile;
+use Composer\Pcre\Preg;
 use Composer\Util\Bitbucket;
 use Composer\Util\Http\Response;
 
@@ -60,7 +61,7 @@ class GitBitbucketDriver extends VcsDriver
      */
     public function initialize()
     {
-        preg_match('#^https?://bitbucket\.org/([^/]+)/([^/]+?)(\.git|/?)?$#i', $this->url, $match);
+        Preg::match('#^https?://bitbucket\.org/([^/]+)/([^/]+?)(\.git|/?)?$#i', $this->url, $match);
         $this->owner = $match[1];
         $this->repository = $match[2];
         $this->originUrl = 'bitbucket.org';
@@ -463,7 +464,7 @@ class GitBitbucketDriver extends VcsDriver
             if ($cloneLink['name'] === 'https') {
                 // Format: https://(user@)bitbucket.org/{user}/{repo}
                 // Strip username from URL (only present in clone URL's for private repositories)
-                $this->cloneHttpsUrl = preg_replace('/https:\/\/([^@]+@)?/', 'https://', $cloneLink['href']);
+                $this->cloneHttpsUrl = Preg::replace('/https:\/\/([^@]+@)?/', 'https://', $cloneLink['href']);
             }
         }
     }
@@ -525,7 +526,7 @@ class GitBitbucketDriver extends VcsDriver
      */
     public static function supports(IOInterface $io, Config $config, $url, $deep = false)
     {
-        if (!preg_match('#^https?://bitbucket\.org/([^/]+)/([^/]+?)(\.git|/?)?$#i', $url)) {
+        if (!Preg::isMatch('#^https?://bitbucket\.org/([^/]+)/([^/]+?)(\.git|/?)?$#i', $url)) {
             return false;
         }
 

src/Composer/Repository/Vcs/GitDriver.php

@@ -12,6 +12,7 @@
 
 namespace Composer\Repository\Vcs;
 
+use Composer\Pcre\Preg;
 use Composer\Util\ProcessExecutor;
 use Composer\Util\Filesystem;
 use Composer\Util\Url;
@@ -40,7 +41,7 @@ class GitDriver extends VcsDriver
     public function initialize()
     {
         if (Filesystem::isLocalPath($this->url)) {
-            $this->url = preg_replace('{[\\/]\.git/?$}', '', $this->url);
+            $this->url = Preg::replace('{[\\/]\.git/?$}', '', $this->url);
             if (!is_dir($this->url)) {
                 throw new \RuntimeException('Failed to read package information from '.$this->url.' as the path does not exist');
             }
@@ -51,7 +52,7 @@ class GitDriver extends VcsDriver
                 throw new \RuntimeException('GitDriver requires a usable cache directory, and it looks like you set it to be disabled');
             }
 
-            $this->repoDir = $this->config->get('cache-vcs-dir') . '/' . preg_replace('{[^a-z0-9.]}i', '-', $this->url) . '/';
+            $this->repoDir = $this->config->get('cache-vcs-dir') . '/' . Preg::replace('{[^a-z0-9.]}i', '-', $this->url) . '/';
 
             GitUtil::cleanEnv();
 
@@ -62,7 +63,7 @@ class GitDriver extends VcsDriver
                 throw new \RuntimeException('Can not clone '.$this->url.' to access package information. The "'.dirname($this->repoDir).'" directory is not writable by the current user.');
             }
 
-            if (preg_match('{^ssh://[^@]+@[^:]+:[^0-9]+}', $this->url)) {
+            if (Preg::isMatch('{^ssh://[^@]+@[^:]+:[^0-9]+}', $this->url)) {
                 throw new \InvalidArgumentException('The source URL '.$this->url.' is invalid, ssh URLs should have a port number after ":".'."\n".'Use ssh://git@example.com:22/path or just git@example.com:path if you do not want to provide a password or custom port.');
             }
 
@@ -80,7 +81,7 @@ class GitDriver extends VcsDriver
         $this->getTags();
         $this->getBranches();
 
-        $this->cache = new Cache($this->io, $this->config->get('cache-repo-dir').'/'.preg_replace('{[^a-z0-9.]}i', '-', Url::sanitize($cacheUrl)));
+        $this->cache = new Cache($this->io, $this->config->get('cache-repo-dir').'/'.Preg::replace('{[^a-z0-9.]}i', '-', Url::sanitize($cacheUrl)));
         $this->cache->setReadOnly($this->config->get('cache-read-only'));
     }
 
@@ -97,7 +98,7 @@ class GitDriver extends VcsDriver
             $branches = $this->process->splitLines($output);
             if (!in_array('* master', $branches)) {
                 foreach ($branches as $branch) {
-                    if ($branch && preg_match('{^\* +(\S+)}', $branch, $match)) {
+                    if ($branch && Preg::isMatch('{^\* +(\S+)}', $branch, $match)) {
                         $this->rootIdentifier = $match[1];
                         break;
                     }
@@ -170,7 +171,7 @@ class GitDriver extends VcsDriver
 
             $this->process->execute('git show-ref --tags --dereference', $output, $this->repoDir);
             foreach ($output = $this->process->splitLines($output) as $tag) {
-                if ($tag && preg_match('{^([a-f0-9]{40}) refs/tags/(\S+?)(\^\{\})?$}', $tag, $match)) {
+                if ($tag && Preg::isMatch('{^([a-f0-9]{40}) refs/tags/(\S+?)(\^\{\})?$}', $tag, $match)) {
                     $this->tags[$match[2]] = $match[1];
                 }
             }
@@ -189,8 +190,8 @@ class GitDriver extends VcsDriver
 
             $this->process->execute('git branch --no-color --no-abbrev -v', $output, $this->repoDir);
             foreach ($this->process->splitLines($output) as $branch) {
-                if ($branch && !preg_match('{^ *[^/]+/HEAD }', $branch)) {
+                if ($branch && !Preg::isMatch('{^ *[^/]+/HEAD }', $branch)) {
-                    if (preg_match('{^(?:\* )? *(\S+) *([a-f0-9]+)(?: .*)?$}', $branch, $match)) {
+                    if (Preg::isMatch('{^(?:\* )? *(\S+) *([a-f0-9]+)(?: .*)?$}', $branch, $match)) {
                         $branches[$match[1]] = $match[2];
                     }
                 }
@@ -207,7 +208,7 @@ class GitDriver extends VcsDriver
      */
     public static function supports(IOInterface $io, Config $config, $url, $deep = false)
     {
-        if (preg_match('#(^git://|\.git/?$|git(?:olite)?@|//git\.|//github.com/)#i', $url)) {
+        if (Preg::isMatch('#(^git://|\.git/?$|git(?:olite)?@|//git\.|//github.com/)#i', $url)) {
             return true;
         }
 

src/Composer/Repository/Vcs/GitHubDriver.php

@@ -17,6 +17,7 @@ use Composer\Downloader\TransportException;
 use Composer\Json\JsonFile;
 use Composer\Cache;
 use Composer\IO\IOInterface;
+use Composer\Pcre\Preg;
 use Composer\Util\GitHub;
 use Composer\Util\Http\Response;
 
@@ -58,7 +59,7 @@ class GitHubDriver extends VcsDriver
      */
     public function initialize()
     {
-        preg_match('#^(?:(?:https?|git)://([^/]+)/|git@([^:]+):/?)([^/]+)/(.+?)(?:\.git|/)?$#', $this->url, $match);
+        Preg::match('#^(?:(?:https?|git)://([^/]+)/|git@([^:]+):/?)([^/]+)/(.+?)(?:\.git|/)?$#', $this->url, $match);
         $this->owner = $match[3];
         $this->repository = $match[4];
         $this->originUrl = strtolower(!empty($match[1]) ? $match[1] : $match[2]);
@@ -227,20 +228,20 @@ class GitHubDriver extends VcsDriver
 
         $result = array();
         $key = null;
-        foreach (preg_split('{\r?\n}', $funding) as $line) {
+        foreach (Preg::split('{\r?\n}', $funding) as $line) {
             $line = trim($line);
-            if (preg_match('{^(\w+)\s*:\s*(.+)$}', $line, $match)) {
+            if (Preg::isMatch('{^(\w+)\s*:\s*(.+)$}', $line, $match)) {
-                if (preg_match('{^\[(.*)\](?:\s*#.*)?$}', $match[2], $match2)) {
+                if (Preg::isMatch('{^\[(.*)\](?:\s*#.*)?$}', $match[2], $match2)) {
-                    foreach (array_map('trim', preg_split('{[\'"]?\s*,\s*[\'"]?}', $match2[1])) as $item) {
+                    foreach (array_map('trim', Preg::split('{[\'"]?\s*,\s*[\'"]?}', $match2[1])) as $item) {
                         $result[] = array('type' => $match[1], 'url' => trim($item, '"\' '));
                     }
-                } elseif (preg_match('{^([^#].*?)(\s+#.*)?$}', $match[2], $match2)) {
+                } elseif (Preg::isMatch('{^([^#].*?)(\s+#.*)?$}', $match[2], $match2)) {
                     $result[] = array('type' => $match[1], 'url' => trim($match2[1], '"\' '));
                 }
                 $key = null;
-            } elseif (preg_match('{^(\w+)\s*:\s*#\s*$}', $line, $match)) {
+            } elseif (Preg::isMatch('{^(\w+)\s*:\s*#\s*$}', $line, $match)) {
                 $key = $match[1];
-            } elseif ($key && preg_match('{^-\s*(.+)(\s+#.*)?$}', $line, $match)) {
+            } elseif ($key && Preg::isMatch('{^-\s*(.+)(\s+#.*)?$}', $line, $match)) {
                 $result[] = array('type' => $key, 'url' => trim($match[1], '"\' '));
             }
         }
@@ -377,12 +378,12 @@ class GitHubDriver extends VcsDriver
      */
     public static function supports(IOInterface $io, Config $config, $url, $deep = false)
     {
-        if (!preg_match('#^((?:https?|git)://([^/]+)/|git@([^:]+):/?)([^/]+)/(.+?)(?:\.git|/)?$#', $url, $matches)) {
+        if (!Preg::isMatch('#^((?:https?|git)://([^/]+)/|git@([^:]+):/?)([^/]+)/(.+?)(?:\.git|/)?$#', $url, $matches)) {
             return false;
         }
 
         $originUrl = !empty($matches[2]) ? $matches[2] : $matches[3];
-        if (!in_array(strtolower(preg_replace('{^www\.}i', '', $originUrl)), $config->get('github-domains'))) {
+        if (!in_array(strtolower(Preg::replace('{^www\.}i', '', $originUrl)), $config->get('github-domains'))) {
             return false;
         }
 
@@ -608,7 +609,7 @@ class GitHubDriver extends VcsDriver
 
         $links = explode(',', $header);
         foreach ($links as $link) {
-            if (preg_match('{<(.+?)>; *rel="next"}', $link, $match)) {
+            if (Preg::isMatch('{<(.+?)>; *rel="next"}', $link, $match)) {
                 return $match[1];
             }
         }

src/Composer/Repository/Vcs/GitLabDriver.php

@@ -17,6 +17,7 @@ use Composer\Cache;
 use Composer\IO\IOInterface;
 use Composer\Json\JsonFile;
 use Composer\Downloader\TransportException;
+use Composer\Pcre\Preg;
 use Composer\Util\HttpDownloader;
 use Composer\Util\GitLab;
 use Composer\Util\Http\Response;
@@ -92,7 +93,7 @@ class GitLabDriver extends VcsDriver
      */
     public function initialize()
     {
-        if (!preg_match(self::URL_REGEX, $this->url, $match)) {
+        if (!Preg::isMatch(self::URL_REGEX, $this->url, $match)) {
             throw new \InvalidArgumentException('The URL provided is invalid. It must be the HTTP URL of a GitLab project.');
         }
 
@@ -119,7 +120,7 @@ class GitLabDriver extends VcsDriver
         }
 
         $this->namespace = implode('/', $urlParts);
-        $this->repository = preg_replace('#(\.git)$#', '', $match['repo']);
+        $this->repository = Preg::replace('#(\.git)$#', '', $match['repo']);
 
         $this->cache = new Cache($this->io, $this->config->get('cache-repo-dir').'/'.$this->originUrl.'/'.$this->namespace.'/'.$this->repository);
         $this->cache->setReadOnly($this->config->get('cache-read-only'));
@@ -186,7 +187,7 @@ class GitLabDriver extends VcsDriver
         }
 
         // Convert the root identifier to a cacheable commit id
-        if (!preg_match('{[a-f0-9]{40}}i', $identifier)) {
+        if (!Preg::isMatch('{[a-f0-9]{40}}i', $identifier)) {
             $branches = $this->getBranches();
             if (isset($branches[$identifier])) {
                 $identifier = $branches[$identifier];
@@ -560,7 +561,7 @@ class GitLabDriver extends VcsDriver
      */
     public static function supports(IOInterface $io, Config $config, $url, $deep = false)
     {
-        if (!preg_match(self::URL_REGEX, $url, $match)) {
+        if (!Preg::isMatch(self::URL_REGEX, $url, $match)) {
             return false;
         }
 
@@ -590,7 +591,7 @@ class GitLabDriver extends VcsDriver
 
         $links = explode(',', $header);
         foreach ($links as $link) {
-            if (preg_match('{<(.+?)>; *rel="next"}', $link, $match)) {
+            if (Preg::isMatch('{<(.+?)>; *rel="next"}', $link, $match)) {
                 return $match[1];
             }
         }
@@ -625,7 +626,7 @@ class GitLabDriver extends VcsDriver
         while (null !== ($part = array_shift($urlParts))) {
             $guessedDomain .= '/' . $part;
 
-            if (in_array($guessedDomain, $configuredDomains) || ($portNumber && in_array(preg_replace('{:\d+}', '', $guessedDomain), $configuredDomains))) {
+            if (in_array($guessedDomain, $configuredDomains) || ($portNumber && in_array(Preg::replace('{:\d+}', '', $guessedDomain), $configuredDomains))) {
                 return $guessedDomain;
             }
         }

src/Composer/Repository/Vcs/HgDriver.php

@@ -14,6 +14,7 @@ namespace Composer\Repository\Vcs;
 
 use Composer\Config;
 use Composer\Cache;
+use Composer\Pcre\Preg;
 use Composer\Util\Hg as HgUtils;
 use Composer\Util\ProcessExecutor;
 use Composer\Util\Filesystem;
@@ -46,7 +47,7 @@ class HgDriver extends VcsDriver
             }
 
             $cacheDir = $this->config->get('cache-vcs-dir');
-            $this->repoDir = $cacheDir . '/' . preg_replace('{[^a-z0-9]}i', '-', $this->url) . '/';
+            $this->repoDir = $cacheDir . '/' . Preg::replace('{[^a-z0-9]}i', '-', $this->url) . '/';
 
             $fs = new Filesystem();
             $fs->ensureDirectoryExists($cacheDir);
@@ -162,7 +163,7 @@ class HgDriver extends VcsDriver
 
             $this->process->execute('hg tags', $output, $this->repoDir);
             foreach ($this->process->splitLines($output) as $tag) {
-                if ($tag && preg_match('(^([^\s]+)\s+\d+:(.*)$)', $tag, $match)) {
+                if ($tag && Preg::isMatch('(^([^\s]+)\s+\d+:(.*)$)', $tag, $match)) {
                     $tags[$match[1]] = $match[2];
                 }
             }
@@ -185,14 +186,14 @@ class HgDriver extends VcsDriver
 
             $this->process->execute('hg branches', $output, $this->repoDir);
             foreach ($this->process->splitLines($output) as $branch) {
-                if ($branch && preg_match('(^([^\s]+)\s+\d+:([a-f0-9]+))', $branch, $match)) {
+                if ($branch && Preg::isMatch('(^([^\s]+)\s+\d+:([a-f0-9]+))', $branch, $match)) {
                     $branches[$match[1]] = $match[2];
                 }
             }
 
             $this->process->execute('hg bookmarks', $output, $this->repoDir);
             foreach ($this->process->splitLines($output) as $branch) {
-                if ($branch && preg_match('(^(?:[\s*]*)([^\s]+)\s+\d+:(.*)$)', $branch, $match)) {
+                if ($branch && Preg::isMatch('(^(?:[\s*]*)([^\s]+)\s+\d+:(.*)$)', $branch, $match)) {
                     $bookmarks[$match[1]] = $match[2];
                 }
             }
@@ -209,7 +210,7 @@ class HgDriver extends VcsDriver
      */
     public static function supports(IOInterface $io, Config $config, $url, $deep = false)
     {
-        if (preg_match('#(^(?:https?|ssh)://(?:[^@]+@)?bitbucket.org|https://(?:.*?)\.kilnhg.com)#i', $url)) {
+        if (Preg::isMatch('#(^(?:https?|ssh)://(?:[^@]+@)?bitbucket.org|https://(?:.*?)\.kilnhg.com)#i', $url)) {
             return true;
         }
 

src/Composer/Repository/Vcs/PerforceDriver.php

@@ -15,6 +15,7 @@ namespace Composer\Repository\Vcs;
 use Composer\Config;
 use Composer\Cache;
 use Composer\IO\IOInterface;
+use Composer\Pcre\Preg;
 use Composer\Util\ProcessExecutor;
 use Composer\Util\Perforce;
 
@@ -160,7 +161,7 @@ class PerforceDriver extends VcsDriver
      */
     public static function supports(IOInterface $io, Config $config, $url, $deep = false)
     {
-        if ($deep || preg_match('#\b(perforce|p4)\b#i', $url)) {
+        if ($deep || Preg::isMatch('#\b(perforce|p4)\b#i', $url)) {
             return Perforce::checkServerExists($url, new ProcessExecutor($io));
         }
 

src/Composer/Repository/Vcs/SvnDriver.php

@@ -15,6 +15,7 @@ namespace Composer\Repository\Vcs;
 use Composer\Cache;
 use Composer\Config;
 use Composer\Json\JsonFile;
+use Composer\Pcre\Preg;
 use Composer\Util\ProcessExecutor;
 use Composer\Util\Filesystem;
 use Composer\Util\Url;
@@ -82,7 +83,7 @@ class SvnDriver extends VcsDriver
             $this->baseUrl = substr($this->url, 0, $pos);
         }
 
-        $this->cache = new Cache($this->io, $this->config->get('cache-repo-dir').'/'.preg_replace('{[^a-z0-9.]}i', '-', Url::sanitize($this->baseUrl)));
+        $this->cache = new Cache($this->io, $this->config->get('cache-repo-dir').'/'.Preg::replace('{[^a-z0-9.]}i', '-', Url::sanitize($this->baseUrl)));
         $this->cache->setReadOnly($this->config->get('cache-read-only'));
 
         $this->getBranches();
@@ -126,7 +127,7 @@ class SvnDriver extends VcsDriver
      */
     protected function shouldCache($identifier)
     {
-        return $this->cache && preg_match('{@\d+$}', $identifier);
+        return $this->cache && Preg::isMatch('{@\d+$}', $identifier);
     }
 
     /**
@@ -168,7 +169,7 @@ class SvnDriver extends VcsDriver
     {
         $identifier = '/' . trim($identifier, '/') . '/';
 
-        preg_match('{^(.+?)(@\d+)?/$}', $identifier, $match);
+        Preg::match('{^(.+?)(@\d+)?/$}', $identifier, $match);
         if (!empty($match[2])) {
             $path = $match[1];
             $rev = $match[2];
@@ -197,7 +198,7 @@ class SvnDriver extends VcsDriver
     {
         $identifier = '/' . trim($identifier, '/') . '/';
 
-        preg_match('{^(.+?)(@\d+)?/$}', $identifier, $match);
+        Preg::match('{^(.+?)(@\d+)?/$}', $identifier, $match);
         if (!empty($match[2])) {
             $path = $match[1];
             $rev = $match[2];
@@ -208,7 +209,7 @@ class SvnDriver extends VcsDriver
 
         $output = $this->execute('svn info', $this->baseUrl . $path . $rev);
         foreach ($this->process->splitLines($output) as $line) {
-            if ($line && preg_match('{^Last Changed Date: ([^(]+)}', $line, $match)) {
+            if ($line && Preg::isMatch('{^Last Changed Date: ([^(]+)}', $line, $match)) {
                 return new \DateTime($match[1], new \DateTimeZone('UTC'));
             }
         }
@@ -229,7 +230,7 @@ class SvnDriver extends VcsDriver
                 if ($output) {
                     foreach ($this->process->splitLines($output) as $line) {
                         $line = trim($line);
-                        if ($line && preg_match('{^\s*(\S+).*?(\S+)\s*$}', $line, $match)) {
+                        if ($line && Preg::isMatch('{^\s*(\S+).*?(\S+)\s*$}', $line, $match)) {
                             if (isset($match[1], $match[2]) && $match[2] !== './') {
                                 $tags[rtrim($match[2], '/')] = $this->buildIdentifier(
                                     '/' . $this->tagsPath . '/' . $match[2],
@@ -265,7 +266,7 @@ class SvnDriver extends VcsDriver
             if ($output) {
                 foreach ($this->process->splitLines($output) as $line) {
                     $line = trim($line);
-                    if ($line && preg_match('{^\s*(\S+).*?(\S+)\s*$}', $line, $match)) {
+                    if ($line && Preg::isMatch('{^\s*(\S+).*?(\S+)\s*$}', $line, $match)) {
                         if (isset($match[1], $match[2]) && $match[2] === './') {
                             $branches['trunk'] = $this->buildIdentifier(
                                 '/' . $this->trunkPath,
@@ -284,7 +285,7 @@ class SvnDriver extends VcsDriver
                 if ($output) {
                     foreach ($this->process->splitLines(trim($output)) as $line) {
                         $line = trim($line);
-                        if ($line && preg_match('{^\s*(\S+).*?(\S+)\s*$}', $line, $match)) {
+                        if ($line && Preg::isMatch('{^\s*(\S+).*?(\S+)\s*$}', $line, $match)) {
                             if (isset($match[1], $match[2]) && $match[2] !== './') {
                                 $branches[rtrim($match[2], '/')] = $this->buildIdentifier(
                                     '/' . $this->branchesPath . '/' . $match[2],
@@ -308,7 +309,7 @@ class SvnDriver extends VcsDriver
     public static function supports(IOInterface $io, Config $config, $url, $deep = false)
     {
         $url = self::normalizeUrl($url);
-        if (preg_match('#(^svn://|^svn\+ssh://|svn\.)#i', $url)) {
+        if (Preg::isMatch('#(^svn://|^svn\+ssh://|svn\.)#i', $url)) {
             return true;
         }
 

src/Composer/Repository/Vcs/VcsDriver.php

@@ -17,6 +17,7 @@ use Composer\Downloader\TransportException;
 use Composer\Config;
 use Composer\IO\IOInterface;
 use Composer\Json\JsonFile;
+use Composer\Pcre\Preg;
 use Composer\Util\ProcessExecutor;
 use Composer\Util\HttpDownloader;
 use Composer\Util\Filesystem;
@@ -80,7 +81,7 @@ abstract class VcsDriver implements VcsDriverInterface
      */
     protected function shouldCache($identifier)
     {
-        return $this->cache && preg_match('{^[a-f0-9]{40}$}iD', $identifier);
+        return $this->cache && Preg::isMatch('{^[a-f0-9]{40}$}iD', $identifier);
     }
 
     /**

src/Composer/Repository/VcsRepository.php

@@ -13,6 +13,7 @@
 namespace Composer\Repository;
 
 use Composer\Downloader\TransportException;
+use Composer\Pcre\Preg;
 use Composer\Repository\Vcs\VcsDriverInterface;
 use Composer\Package\Version\VersionParser;
 use Composer\Package\Loader\ArrayLoader;
@@ -270,8 +271,8 @@ class VcsRepository extends ArrayRepository implements ConfigurableRepositoryInt
                 }
 
                 // make sure tag packages have no -dev flag
-                $data['version'] = preg_replace('{[.-]?dev$}i', '', $data['version']);
+                $data['version'] = Preg::replace('{[.-]?dev$}i', '', $data['version']);
-                $data['version_normalized'] = preg_replace('{(^dev-|[.-]?dev$)}i', '', $data['version_normalized']);
+                $data['version_normalized'] = Preg::replace('{(^dev-|[.-]?dev$)}i', '', $data['version_normalized']);
 
                 // make sure tag do not contain the default-branch marker
                 unset($data['default-branch']);
@@ -279,7 +280,7 @@ class VcsRepository extends ArrayRepository implements ConfigurableRepositoryInt
                 // broken package, version doesn't match tag
                 if ($data['version_normalized'] !== $parsedTag) {
                     if ($isVeryVerbose) {
-                        if (preg_match('{(^dev-|[.-]?dev$)}i', $parsedTag)) {
+                        if (Preg::isMatch('{(^dev-|[.-]?dev$)}i', $parsedTag)) {
                             $this->io->writeError('<warning>Skipped tag '.$tag.', invalid tag name, tags can not use dev prefixes or suffixes</warning>');
                         } else {
                             $this->io->writeError('<warning>Skipped tag '.$tag.', tag ('.$parsedTag.') does not match version ('.$data['version_normalized'].') in composer.json</warning>');
@@ -348,7 +349,7 @@ class VcsRepository extends ArrayRepository implements ConfigurableRepositoryInt
                 $version = 'dev-' . $branch;
             } else {
                 $prefix = strpos($branch, 'v') === 0 ? 'v' : '';
-                $version = $prefix . preg_replace('{(\.9{7})+}', '.x', $parsedBranch);
+                $version = $prefix . Preg::replace('{(\.9{7})+}', '.x', $parsedBranch);
             }
 
             $cachedPackage = $this->getCachedPackageVersion($version, $identifier, $isVerbose, $isVeryVerbose, $driver->getRootIdentifier() === $branch);

src/Composer/SelfUpdate/Keys.php

@@ -12,6 +12,8 @@
 
 namespace Composer\SelfUpdate;
 
+use Composer\Pcre\Preg;
+
 /**
  * @author Jordi Boggiano <j.boggiano@seld.be>
  */
@@ -24,7 +26,7 @@ class Keys
      */
     public static function fingerprint($path)
     {
-        $hash = strtoupper(hash('sha256', preg_replace('{\s}', '', file_get_contents($path))));
+        $hash = strtoupper(hash('sha256', Preg::replace('{\s}', '', file_get_contents($path))));
 
         return implode(' ', array(
             substr($hash, 0, 8),

src/Composer/Util/AuthHelper.php

@@ -15,6 +15,7 @@ namespace Composer\Util;
 use Composer\Config;
 use Composer\IO\IOInterface;
 use Composer\Downloader\TransportException;
+use Composer\Pcre\Preg;
 
 /**
  * @author Jordi Boggiano <j.boggiano@seld.be>
@@ -209,7 +210,7 @@ class AuthHelper
                 $headers[] = 'Authorization: Bearer '.$auth['username'];
             } elseif ('github.com' === $origin && 'x-oauth-basic' === $auth['password']) {
                 // only add the access_token if it is actually a github API URL
-                if (preg_match('{^https?://api\.github\.com/}', $url)) {
+                if (Preg::isMatch('{^https?://api\.github\.com/}', $url)) {
                     $headers[] = 'Authorization: token '.$auth['username'];
                     $authenticationDisplayMessage = 'Using GitHub token authentication';
                 }

src/Composer/Util/ComposerMirror.php

@@ -12,6 +12,8 @@
 
 namespace Composer\Util;
 
+use Composer\Pcre\Preg;
+
 /**
  * Composer mirror utilities
  *
@@ -32,7 +34,7 @@ class ComposerMirror
     public static function processUrl($mirrorUrl, $packageName, $version, $reference, $type, $prettyVersion = null)
     {
         if ($reference) {
-            $reference = preg_match('{^([a-f0-9]*|%reference%)$}', $reference) ? $reference : md5($reference);
+            $reference = Preg::isMatch('{^([a-f0-9]*|%reference%)$}', $reference) ? $reference : md5($reference);
         }
         $version = strpos($version, '/') === false ? $version : md5($version);
 
@@ -56,12 +58,12 @@ class ComposerMirror
      */
     public static function processGitUrl($mirrorUrl, $packageName, $url, $type)
     {
-        if (preg_match('#^(?:(?:https?|git)://github\.com/|git@github\.com:)([^/]+)/(.+?)(?:\.git)?$#', $url, $match)) {
+        if (Preg::isMatch('#^(?:(?:https?|git)://github\.com/|git@github\.com:)([^/]+)/(.+?)(?:\.git)?$#', $url, $match)) {
             $url = 'gh-'.$match[1].'/'.$match[2];
-        } elseif (preg_match('#^https://bitbucket\.org/([^/]+)/(.+?)(?:\.git)?/?$#', $url, $match)) {
+        } elseif (Preg::isMatch('#^https://bitbucket\.org/([^/]+)/(.+?)(?:\.git)?/?$#', $url, $match)) {
             $url = 'bb-'.$match[1].'/'.$match[2];
         } else {
-            $url = preg_replace('{[^a-z0-9_.-]}i', '-', trim($url, '/'));
+            $url = Preg::replace('{[^a-z0-9_.-]}i', '-', trim($url, '/'));
         }
 
         return str_replace(

src/Composer/Util/ConfigValidator.php

@@ -18,6 +18,7 @@ use Composer\Package\Loader\InvalidPackageException;
 use Composer\Json\JsonValidationException;
 use Composer\IO\IOInterface;
 use Composer\Json\JsonFile;
+use Composer\Pcre\Preg;
 use Composer\Spdx\SpdxLicenses;
 
 /**
@@ -93,12 +94,12 @@ class ConfigValidator
             foreach ($licenses as $license) {
                 $spdxLicense = $licenseValidator->getLicenseByIdentifier($license);
                 if ($spdxLicense && $spdxLicense[3]) {
-                    if (preg_match('{^[AL]?GPL-[123](\.[01])?\+$}i', $license)) {
+                    if (Preg::isMatch('{^[AL]?GPL-[123](\.[01])?\+$}i', $license)) {
                         $warnings[] = sprintf(
                             'License "%s" is a deprecated SPDX license identifier, use "'.str_replace('+', '', $license).'-or-later" instead',
                             $license
                         );
-                    } elseif (preg_match('{^[AL]?GPL-[123](\.[01])?$}i', $license)) {
+                    } elseif (Preg::isMatch('{^[AL]?GPL-[123](\.[01])?$}i', $license)) {
                         $warnings[] = sprintf(
                             'License "%s" is a deprecated SPDX license identifier, use "'.$license.'-only" or "'.$license.'-or-later" instead',
                             $license
@@ -117,8 +118,8 @@ class ConfigValidator
             $warnings[] = 'The version field is present, it is recommended to leave it out if the package is published on Packagist.';
         }
 
-        if (!empty($manifest['name']) && preg_match('{[A-Z]}', $manifest['name'])) {
+        if (!empty($manifest['name']) && Preg::isMatch('{[A-Z]}', $manifest['name'])) {
-            $suggestName = preg_replace('{(?:([a-z])([A-Z])|([A-Z])([A-Z][a-z]))}', '\\1\\3-\\2\\4', $manifest['name']);
+            $suggestName = Preg::replace('{(?:([a-z])([A-Z])|([A-Z])([A-Z][a-z]))}', '\\1\\3-\\2\\4', $manifest['name']);
             $suggestName = strtolower($suggestName);
 
             $publishErrors[] = sprintf(
@@ -162,7 +163,7 @@ class ConfigValidator
         $requireDev = isset($manifest['require-dev']) ? $manifest['require-dev'] : array();
         $packages = array_merge($require, $requireDev);
         foreach ($packages as $package => $version) {
-            if (preg_match('/#/', $version) === 1) {
+            if (Preg::isMatch('/#/', $version)) {
                 $warnings[] = sprintf(
                     'The package "%s" is pointing to a commit-ref, this is bad practice and can cause unforeseen issues.',
                     $package

src/Composer/Util/ErrorHandler.php

@@ -13,6 +13,7 @@
 namespace Composer\Util;
 
 use Composer\IO\IOInterface;
+use Composer\Pcre\Preg;
 
 /**
  * Convert PHP errors into exceptions
@@ -55,7 +56,7 @@ class ErrorHandler
         if (self::$io) {
             // ignore symfony/* deprecation warnings
             // TODO remove in 2.3
-            if (preg_match('{^Return type of Symfony\\\\.*ReturnTypeWillChange}is', $message)) {
+            if (Preg::isMatch('{^Return type of Symfony\\\\.*ReturnTypeWillChange}is', $message)) {
                 return true;
             }
             if (strpos(strtr($file, '\\', '/'), 'vendor/symfony/') !== false) {

src/Composer/Util/Filesystem.php

@@ -12,6 +12,7 @@
 
 namespace Composer\Util;
 
+use Composer\Pcre\Preg;
 use React\Promise\PromiseInterface;
 use RecursiveDirectoryIterator;
 use RecursiveIteratorIterator;
@@ -196,7 +197,7 @@ class Filesystem
             return true;
         }
 
-        if (preg_match('{^(?:[a-z]:)?[/\\\\]+$}i', $directory)) {
+        if (Preg::isMatch('{^(?:[a-z]:)?[/\\\\]+$}i', $directory)) {
             throw new \RuntimeException('Aborting an attempted deletion of '.$directory.', this was probably not intended, if it is a real use case please report it.');
         }
 
@@ -464,7 +465,7 @@ class Filesystem
         }
 
         $commonPath = $to;
-        while (strpos($from.'/', $commonPath.'/') !== 0 && '/' !== $commonPath && !preg_match('{^[a-z]:/?$}i', $commonPath)) {
+        while (strpos($from.'/', $commonPath.'/') !== 0 && '/' !== $commonPath && !Preg::isMatch('{^[a-z]:/?$}i', $commonPath)) {
             $commonPath = strtr(\dirname($commonPath), '\\', '/');
         }
 
@@ -503,7 +504,7 @@ class Filesystem
         }
 
         $commonPath = $to;
-        while (strpos($from.'/', $commonPath.'/') !== 0 && '/' !== $commonPath && !preg_match('{^[a-z]:/?$}i', $commonPath) && '.' !== $commonPath) {
+        while (strpos($from.'/', $commonPath.'/') !== 0 && '/' !== $commonPath && !Preg::isMatch('{^[a-z]:/?$}i', $commonPath) && '.' !== $commonPath) {
             $commonPath = strtr(\dirname($commonPath), '\\', '/');
         }
 
@@ -578,7 +579,7 @@ class Filesystem
         }
 
         // extract a prefix being a protocol://, protocol:, protocol://drive: or simply drive:
-        if (preg_match('{^( [0-9a-z]{2,}+: (?: // (?: [a-z]: )? )? | [a-z]: )}ix', $path, $match)) {
+        if (Preg::isMatch('{^( [0-9a-z]{2,}+: (?: // (?: [a-z]: )? )? | [a-z]: )}ix', $path, $match)) {
             $prefix = $match[1];
             $path = substr($path, \strlen($prefix));
         }
@@ -612,7 +613,7 @@ class Filesystem
      */
     public static function trimTrailingSlash($path)
     {
-        if (!preg_match('{^[/\\\\]+$}', $path)) {
+        if (!Preg::isMatch('{^[/\\\\]+$}', $path)) {
             $path = rtrim($path, '/\\');
         }
 
@@ -627,7 +628,7 @@ class Filesystem
      */
     public static function isLocalPath($path)
     {
-        return (bool) preg_match('{^(file://(?!//)|/(?!/)|/?[a-z]:[\\\\/]|\.\.[\\\\/]|[a-z0-9_.-]+[\\\\/])}i', $path);
+        return Preg::isMatch('{^(file://(?!//)|/(?!/)|/?[a-z]:[\\\\/]|\.\.[\\\\/]|[a-z0-9_.-]+[\\\\/])}i', $path);
     }
 
     /**
@@ -638,10 +639,10 @@ class Filesystem
     public static function getPlatformPath($path)
     {
         if (Platform::isWindows()) {
-            $path = preg_replace('{^(?:file:///([a-z]):?/)}i', 'file://$1:/', $path);
+            $path = Preg::replace('{^(?:file:///([a-z]):?/)}i', 'file://$1:/', $path);
         }
 
-        return (string) preg_replace('{^file://}i', '', $path);
+        return (string) Preg::replace('{^file://}i', '', $path);
     }
 
     /**

src/Composer/Util/Git.php

@@ -14,6 +14,7 @@ namespace Composer\Util;
 
 use Composer\Config;
 use Composer\IO\IOInterface;
+use Composer\Pcre\Preg;
 
 /**
  * @author Jordi Boggiano <j.boggiano@seld.be>
@@ -58,14 +59,14 @@ class Git
             $cwd = null;
         }
 
-        if (preg_match('{^ssh://[^@]+@[^:]+:[^0-9]+}', $url)) {
+        if (Preg::isMatch('{^ssh://[^@]+@[^:]+:[^0-9]+}', $url)) {
             throw new \InvalidArgumentException('The source URL ' . $url . ' is invalid, ssh URLs should have a port number after ":".' . "\n" . 'Use ssh://git@example.com:22/path or just git@example.com:path if you do not want to provide a password or custom port.');
         }
 
         if (!$initialClone) {
             // capture username/password from URL if there is one and we have no auth configured yet
             $this->process->execute('git remote -v', $output, $cwd);
-            if (preg_match('{^(?:composer|origin)\s+https?://(.+):(.+)@([^/]+)}im', $output, $match) && !$this->io->hasAuthentication($match[3])) {
+            if (Preg::isMatch('{^(?:composer|origin)\s+https?://(.+):(.+)@([^/]+)}im', $output, $match) && !$this->io->hasAuthentication($match[3])) {
                 $this->io->setAuthentication($match[3], rawurldecode($match[1]), rawurldecode($match[2]));
             }
         }
@@ -75,7 +76,7 @@ class Git
             throw new \RuntimeException('Config value "github-protocols" must be an array, got ' . gettype($protocols));
         }
         // public github, autoswitch protocols
-        if (preg_match('{^(?:https?|git)://' . self::getGitHubDomainsRegex($this->config) . '/(.*)}', $url, $match)) {
+        if (Preg::isMatch('{^(?:https?|git)://' . self::getGitHubDomainsRegex($this->config) . '/(.*)}', $url, $match)) {
             $messages = array();
             foreach ($protocols as $protocol) {
                 if ('ssh' === $protocol) {
@@ -87,7 +88,7 @@ class Git
                 if (0 === $this->process->execute(call_user_func($commandCallable, $protoUrl), $ignoredOutput, $cwd)) {
                     return;
                 }
-                $messages[] = '- ' . $protoUrl . "\n" . preg_replace('#^#m', '  ', $this->process->getErrorOutput());
+                $messages[] = '- ' . $protoUrl . "\n" . Preg::replace('#^#m', '  ', $this->process->getErrorOutput());
 
                 if ($initialClone && isset($origCwd)) {
                     $this->filesystem->removeDirectory($origCwd);
@@ -101,7 +102,7 @@ class Git
         }
 
         // if we have a private github url and the ssh protocol is disabled then we skip it and directly fallback to https
-        $bypassSshForGitHub = preg_match('{^git@' . self::getGitHubDomainsRegex($this->config) . ':(.+?)\.git$}i', $url) && !in_array('ssh', $protocols, true);
+        $bypassSshForGitHub = Preg::isMatch('{^git@' . self::getGitHubDomainsRegex($this->config) . ':(.+?)\.git$}i', $url) && !in_array('ssh', $protocols, true);
 
         $command = call_user_func($commandCallable, $url);
 
@@ -110,8 +111,8 @@ class Git
         if ($bypassSshForGitHub || 0 !== $this->process->execute($command, $ignoredOutput, $cwd)) {
             $errorMsg = $this->process->getErrorOutput();
             // private github repository without ssh key access, try https with auth
-            if (preg_match('{^git@' . self::getGitHubDomainsRegex($this->config) . ':(.+?)\.git$}i', $url, $match)
+            if (Preg::isMatch('{^git@' . self::getGitHubDomainsRegex($this->config) . ':(.+?)\.git$}i', $url, $match)
-                || preg_match('{^https?://' . self::getGitHubDomainsRegex($this->config) . '/(.*?)(?:\.git)?$}i', $url, $match)
+                || Preg::isMatch('{^https?://' . self::getGitHubDomainsRegex($this->config) . '/(.*?)(?:\.git)?$}i', $url, $match)
             ) {
                 if (!$this->io->hasAuthentication($match[1])) {
                     $gitHubUtil = new GitHub($this->io, $this->config, $this->process);
@@ -133,7 +134,7 @@ class Git
                     $credentials = array(rawurlencode($auth['username']), rawurlencode($auth['password']));
                     $errorMsg = $this->process->getErrorOutput();
                 }
-            } elseif (preg_match('{^https://(bitbucket\.org)/(.*?)(?:\.git)?$}i', $url, $match)) { //bitbucket oauth
+            } elseif (Preg::isMatch('{^https://(bitbucket\.org)/(.*?)(?:\.git)?$}i', $url, $match)) { //bitbucket oauth
                 $bitbucketUtil = new Bitbucket($this->io, $this->config, $this->process);
 
                 if (!$this->io->hasAuthentication($match[1])) {
@@ -178,8 +179,8 @@ class Git
                     $errorMsg = $this->process->getErrorOutput();
                 }
             } elseif (
-                preg_match('{^(git)@' . self::getGitLabDomainsRegex($this->config) . ':(.+?\.git)$}i', $url, $match)
+                Preg::isMatch('{^(git)@' . self::getGitLabDomainsRegex($this->config) . ':(.+?\.git)$}i', $url, $match)
-                || preg_match('{^(https?)://' . self::getGitLabDomainsRegex($this->config) . '/(.*)}i', $url, $match)
+                || Preg::isMatch('{^(https?)://' . self::getGitLabDomainsRegex($this->config) . '/(.*)}i', $url, $match)
             ) {
                 if ($match[1] === 'git') {
                     $match[1] = 'https';
@@ -283,7 +284,7 @@ class Git
         if (is_dir($dir) && 0 === $this->process->execute('git rev-parse --git-dir', $output, $dir) && trim($output) === '.') {
             try {
                 $commandCallable = function ($url) {
-                    $sanitizedUrl = preg_replace('{://([^@]+?):(.+?)@}', '://', $url);
+                    $sanitizedUrl = Preg::replace('{://([^@]+?):(.+?)@}', '://', $url);
 
                     return sprintf('git remote set-url origin -- %s && git remote update --prune origin && git remote set-url origin -- %s && git gc --auto', ProcessExecutor::escape($url), ProcessExecutor::escape($sanitizedUrl));
                 };
@@ -369,7 +370,7 @@ class Git
      */
     private function isAuthenticationFailure($url, &$match)
     {
-        if (!preg_match('{^(https?://)([^/]+)(.*)$}i', $url, $match)) {
+        if (!Preg::isMatch('{^(https?://)([^/]+)(.*)$}i', $url, $match)) {
             return false;
         }
 
@@ -465,7 +466,7 @@ class Git
     {
         if (false === self::$version) {
             self::$version = null;
-            if (0 === $process->execute('git --version', $output) && preg_match('/^git version (\d+(?:\.\d+)+)/m', $output, $matches)) {
+            if (0 === $process->execute('git --version', $output) && Preg::isMatch('/^git version (\d+(?:\.\d+)+)/m', $output, $matches)) {
                 self::$version = $matches[1];
             }
         }

src/Composer/Util/GitHub.php

@@ -16,6 +16,7 @@ use Composer\Factory;
 use Composer\IO\IOInterface;
 use Composer\Config;
 use Composer\Downloader\TransportException;
+use Composer\Pcre\Preg;
 
 /**
  * @author Jordi Boggiano <j.boggiano@seld.be>
@@ -180,7 +181,7 @@ class GitHub
     public function isRateLimited(array $headers)
     {
         foreach ($headers as $header) {
-            if (preg_match('{^X-RateLimit-Remaining: *0$}i', trim($header))) {
+            if (Preg::isMatch('{^X-RateLimit-Remaining: *0$}i', trim($header))) {
                 return true;
             }
         }

src/Composer/Util/GitLab.php

@@ -16,6 +16,7 @@ use Composer\IO\IOInterface;
 use Composer\Config;
 use Composer\Factory;
 use Composer\Downloader\TransportException;
+use Composer\Pcre\Preg;
 
 /**
  * @author Roshan Gautam <roshan.gautam@hotmail.com>
@@ -57,7 +58,7 @@ class GitLab
     public function authorizeOAuth($originUrl)
     {
         // before composer 1.9, origin URLs had no port number in them
-        $bcOriginUrl = preg_replace('{:\d+}', '', $originUrl);
+        $bcOriginUrl = Preg::replace('{:\d+}', '', $originUrl);
 
         if (!in_array($originUrl, $this->config->get('gitlab-domains'), true) && !in_array($bcOriginUrl, $this->config->get('gitlab-domains'), true)) {
             return false;

src/Composer/Util/Hg.php

@@ -14,6 +14,7 @@ namespace Composer\Util;
 
 use Composer\Config;
 use Composer\IO\IOInterface;
+use Composer\Pcre\Preg;
 
 /**
  * @author Jonas Renaudot <jonas.renaudot@gmail.com>
@@ -64,7 +65,7 @@ class Hg
         }
 
         // Try with the authentication information available
-        if (preg_match('{^(https?)://((.+)(?:\:(.+))?@)?([^/]+)(/.*)?}mi', $url, $match) && $this->io->hasAuthentication($match[5])) {
+        if (Preg::isMatch('{^(https?)://((.+)(?:\:(.+))?@)?([^/]+)(/.*)?}mi', $url, $match) && $this->io->hasAuthentication($match[5])) {
             $auth = $this->io->getAuthentication($match[5]);
             $authenticatedUrl = $match[1] . '://' . rawurlencode($auth['username']) . ':' . rawurlencode($auth['password']) . '@' . $match[5] . (!empty($match[6]) ? $match[6] : null);
 
@@ -106,7 +107,7 @@ class Hg
     {
         if (false === self::$version) {
             self::$version = null;
-            if (0 === $process->execute('hg --version', $output) && preg_match('/^.+? (\d+(?:\.\d+)+)\)?\r?\n/', $output, $matches)) {
+            if (0 === $process->execute('hg --version', $output) && Preg::isMatch('/^.+? (\d+(?:\.\d+)+)\)?\r?\n/', $output, $matches)) {
                 self::$version = $matches[1];
             }
         }

src/Composer/Util/Http/CurlDownloader.php

@@ -16,6 +16,7 @@ use Composer\Config;
 use Composer\Downloader\MaxFileSizeExceededException;
 use Composer\IO\IOInterface;
 use Composer\Downloader\TransportException;
+use Composer\Pcre\Preg;
 use Composer\Util\StreamContextFactory;
 use Composer\Util\AuthHelper;
 use Composer\Util\Url;
@@ -167,7 +168,7 @@ class CurlDownloader
         $originalOptions = $options;
 
         // check URL can be accessed (i.e. is not insecure), but allow insecure Packagist calls to $hashed providers as file integrity is verified with sha256
-        if (!preg_match('{^http://(repo\.)?packagist\.org/p/}', $url) || (false === strpos($url, '$') && false === strpos($url, '%24'))) {
+        if (!Preg::isMatch('{^http://(repo\.)?packagist\.org/p/}', $url) || (false === strpos($url, '$') && false === strpos($url, '%24'))) {
             $this->config->prohibitUrlByConfig($url, $this->io);
         }
 
@@ -181,7 +182,7 @@ class CurlDownloader
                 if ($errorMessage) {
                     $errorMessage .= "\n";
                 }
-                $errorMessage .= preg_replace('{^fopen\(.*?\): }', '', $msg);
+                $errorMessage .= Preg::replace('{^fopen\(.*?\): }', '', $msg);
             });
             $bodyHandle = fopen($copyTo.'~', 'w+b');
             restore_error_handler();
@@ -500,11 +501,11 @@ class CurlDownloader
                 $urlHost = parse_url($job['url'], PHP_URL_HOST);
 
                 // Replace path using hostname as an anchor.
-                $targetUrl = preg_replace('{^(.+(?://|@)'.preg_quote($urlHost).'(?::\d+)?)(?:[/\?].*)?$}', '\1'.$locationHeader, $job['url']);
+                $targetUrl = Preg::replace('{^(.+(?://|@)'.preg_quote($urlHost).'(?::\d+)?)(?:[/\?].*)?$}', '\1'.$locationHeader, $job['url']);
             } else {
                 // Relative path; e.g. foo
                 // This actually differs from PHP which seems to add duplicate slashes.
-                $targetUrl = preg_replace('{^(.+/)[^/?]*(?:\?.*)?$}', '\1'.$locationHeader, $job['url']);
+                $targetUrl = Preg::replace('{^(.+/)[^/?]*(?:\?.*)?$}', '\1'.$locationHeader, $job['url']);
             }
         }
 
@@ -540,7 +541,7 @@ class CurlDownloader
             && !$this->authHelper->isPublicBitBucketDownload($job['url'])
             && substr($job['url'], -4) === '.zip'
             && (!$locationHeader || substr($locationHeader, -4) !== '.zip')
-            && preg_match('{^text/html\b}i', $response->getHeader('content-type'))
+            && Preg::isMatch('{^text/html\b}i', $response->getHeader('content-type'))
         ) {
             $needsAuthRetry = 'Bitbucket requires authentication and it was not provided';
         }

src/Composer/Util/Http/Response.php

@@ -13,6 +13,7 @@
 namespace Composer\Util\Http;
 
 use Composer\Json\JsonFile;
+use Composer\Pcre\Preg;
 use Composer\Util\HttpDownloader;
 
 /**
@@ -61,7 +62,7 @@ class Response
     {
         $value = null;
         foreach ($this->headers as $header) {
-            if (preg_match('{^HTTP/\S+ \d+}i', $header)) {
+            if (Preg::isMatch('{^HTTP/\S+ \d+}i', $header)) {
                 // In case of redirects, headers contain the headers of all responses
                 // so we can not return directly and need to keep iterating
                 $value = $header;
@@ -123,7 +124,7 @@ class Response
     {
         $value = null;
         foreach ($headers as $header) {
-            if (preg_match('{^'.preg_quote($name).':\s*(.+?)\s*$}i', $header, $match)) {
+            if (Preg::isMatch('{^'.preg_quote($name).':\s*(.+?)\s*$}i', $header, $match)) {
                 $value = $match[1];
             }
         }

src/Composer/Util/HttpDownloader.php

@@ -15,6 +15,7 @@ namespace Composer\Util;
 use Composer\Config;
 use Composer\IO\IOInterface;
 use Composer\Downloader\TransportException;
+use Composer\Pcre\Preg;
 use Composer\Util\Http\Response;
 use Composer\Util\Http\CurlDownloader;
 use Composer\Composer;
@@ -226,7 +227,7 @@ class HttpDownloader
         }
 
         // capture username/password from URL if there is one
-        if (preg_match('{^https?://([^:/]+):([^@/]+)@([^/]+)}i', $request['url'], $match)) {
+        if (Preg::isMatch('{^https?://([^:/]+):([^@/]+)@([^/]+)}i', $request['url'], $match)) {
             $this->io->setAuthentication($job['origin'], rawurldecode($match[1]), rawurldecode($match[2]));
         }
 
@@ -536,7 +537,7 @@ class HttpDownloader
             return false;
         }
 
-        if (!preg_match('{^https?://}i', $job['request']['url'])) {
+        if (!Preg::isMatch('{^https?://}i', $job['request']['url'])) {
             return false;
         }
 

src/Composer/Util/NoProxyPattern.php

@@ -12,6 +12,7 @@
 
 namespace Composer\Util;
 
+use Composer\Pcre\Preg;
 use stdClass;
 
 /**
@@ -39,7 +40,7 @@ class NoProxyPattern
      */
     public function __construct($pattern)
     {
-        $this->hostNames = preg_split('{[\s,]+}', $pattern, -1, PREG_SPLIT_NO_EMPTY);
+        $this->hostNames = Preg::split('{[\s,]+}', $pattern, -1, PREG_SPLIT_NO_EMPTY);
         $this->noproxy = empty($this->hostNames) || '*' === $this->hostNames[0];
     }
 

src/Composer/Util/Perforce.php

@@ -13,6 +13,7 @@
 namespace Composer\Util;
 
 use Composer\IO\IOInterface;
+use Composer\Pcre\Preg;
 use Symfony\Component\Process\Process;
 
 /**
@@ -634,7 +635,7 @@ class Perforce
             foreach ($resArray as $line) {
                 $resBits = explode(' ', $line);
                 if (count($resBits) > 4) {
-                    $branch = preg_replace('/[^A-Za-z0-9 ]/', '', $resBits[4]);
+                    $branch = Preg::replace('/[^A-Za-z0-9 ]/', '', $resBits[4]);
                     $possibleBranches[$branch] = $resBits[1];
                 }
             }

src/Composer/Util/Platform.php

@@ -12,6 +12,8 @@
 
 namespace Composer\Util;
 
+use Composer\Pcre\Preg;
+
 /**
  * Platform helper for uniform platform-specific tests.
  *
@@ -76,11 +78,11 @@ class Platform
      */
     public static function expandPath($path)
     {
-        if (preg_match('#^~[\\/]#', $path)) {
+        if (Preg::isMatch('#^~[\\/]#', $path)) {
             return self::getUserDirectory() . substr($path, 1);
         }
 
-        return preg_replace_callback('#^(\$|(?P<percent>%))(?P<var>\w++)(?(percent)%)(?P<path>.*)#', function ($matches) {
+        return Preg::replaceCallback('#^(\$|(?P<percent>%))(?P<var>\w++)(?(percent)%)(?P<path>.*)#', function ($matches) {
             // Treat HOME as an alias for USERPROFILE on Windows for legacy reasons
             if (Platform::isWindows() && $matches['var'] == 'HOME') {
                 return (Platform::getEnv('HOME') ?: Platform::getEnv('USERPROFILE')) . $matches['path'];

src/Composer/Util/ProcessExecutor.php

@@ -13,6 +13,7 @@
 namespace Composer\Util;
 
 use Composer\IO\IOInterface;
+use Composer\Pcre\Preg;
 use Symfony\Component\Process\Process;
 use Symfony\Component\Process\Exception\RuntimeException;
 use React\Promise\Promise;
@@ -102,15 +103,15 @@ class ProcessExecutor
     private function doExecute($command, $cwd, $tty, &$output = null)
     {
         if ($this->io && $this->io->isDebug()) {
-            $safeCommand = preg_replace_callback('{://(?P<user>[^:/\s]+):(?P<password>[^@\s/]+)@}i', function ($m) {
+            $safeCommand = Preg::replaceCallback('{://(?P<user>[^:/\s]+):(?P<password>[^@\s/]+)@}i', function ($m) {
                 // if the username looks like a long (12char+) hex string, or a modern github token (e.g. ghp_xxx) we obfuscate that
-                if (preg_match('{^([a-f0-9]{12,}|gh[a-z]_[a-zA-Z0-9_]+)$}', $m['user'])) {
+                if (Preg::isMatch('{^([a-f0-9]{12,}|gh[a-z]_[a-zA-Z0-9_]+)$}', $m['user'])) {
                     return '://***:***@';
                 }
 
                 return '://'.$m['user'].':***@';
             }, $command);
-            $safeCommand = preg_replace("{--password (.*[^\\\\]\') }", '--password \'***\' ', $safeCommand);
+            $safeCommand = Preg::replace("{--password (.*[^\\\\]\') }", '--password \'***\' ', $safeCommand);
             $this->io->writeError('Executing command ('.($cwd ?: 'CWD').'): '.$safeCommand);
         }
 
@@ -249,14 +250,14 @@ class ProcessExecutor
         $cwd = $job['cwd'];
 
         if ($this->io && $this->io->isDebug()) {
-            $safeCommand = preg_replace_callback('{://(?P<user>[^:/\s]+):(?P<password>[^@\s/]+)@}i', function ($m) {
+            $safeCommand = Preg::replaceCallback('{://(?P<user>[^:/\s]+):(?P<password>[^@\s/]+)@}i', function ($m) {
-                if (preg_match('{^[a-f0-9]{12,}$}', $m['user'])) {
+                if (Preg::isMatch('{^[a-f0-9]{12,}$}', $m['user'])) {
                     return '://***:***@';
                 }
 
                 return '://'.$m['user'].':***@';
             }, $command);
-            $safeCommand = preg_replace("{--password (.*[^\\\\]\') }", '--password \'***\' ', $safeCommand);
+            $safeCommand = Preg::replace("{--password (.*[^\\\\]\') }", '--password \'***\' ', $safeCommand);
             $this->io->writeError('Executing async command ('.($cwd ?: 'CWD').'): '.$safeCommand);
         }
 
@@ -384,7 +385,7 @@ class ProcessExecutor
     {
         $output = trim((string) $output);
 
-        return $output === '' ? array() : preg_split('{\r?\n}', $output);
+        return $output === '' ? array() : Preg::split('{\r?\n}', $output);
     }
 
     /**
@@ -482,20 +483,20 @@ class ProcessExecutor
         $argument = strtr($argument, "\n", ' ');
 
         $quote = strpbrk($argument, " \t") !== false;
-        $argument = preg_replace('/(\\\\*)"/', '$1$1\\"', $argument, -1, $dquotes);
+        $argument = Preg::replace('/(\\\\*)"/', '$1$1\\"', $argument, -1, $dquotes);
-        $meta = $dquotes || preg_match('/%[^%]+%|![^!]+!/', $argument);
+        $meta = $dquotes || Preg::isMatch('/%[^%]+%|![^!]+!/', $argument);
 
         if (!$meta && !$quote) {
             $quote = strpbrk($argument, '^&|<>()') !== false;
         }
 
         if ($quote) {
-            $argument = '"'.preg_replace('/(\\\\*)$/', '$1$1', $argument).'"';
+            $argument = '"'.Preg::replace('/(\\\\*)$/', '$1$1', $argument).'"';
         }
 
         if ($meta) {
-            $argument = preg_replace('/(["^&|<>()%])/', '^$1', $argument);
+            $argument = Preg::replace('/(["^&|<>()%])/', '^$1', $argument);
-            $argument = preg_replace('/(!)/', '^^$1', $argument);
+            $argument = Preg::replace('/(!)/', '^^$1', $argument);
         }
 
         return $argument;

src/Composer/Util/RemoteFilesystem.php

@@ -17,6 +17,7 @@ use Composer\Downloader\MaxFileSizeExceededException;
 use Composer\IO\IOInterface;
 use Composer\Downloader\TransportException;
 use Composer\CaBundle\CaBundle;
+use Composer\Pcre\Preg;
 use Composer\Util\Http\Response;
 use Composer\Util\Http\ProxyManager;
 
@@ -177,7 +178,7 @@ class RemoteFilesystem
     {
         $value = null;
         foreach ($headers as $header) {
-            if (preg_match('{^HTTP/\S+ (\d+)}i', $header, $match)) {
+            if (Preg::isMatch('{^HTTP/\S+ (\d+)}i', $header, $match)) {
                 // In case of redirects, http_response_headers contains the headers of all responses
                 // so we can not return directly and need to keep iterating
                 $value = (int) $match[1];
@@ -195,7 +196,7 @@ class RemoteFilesystem
     {
         $value = null;
         foreach ($headers as $header) {
-            if (preg_match('{^HTTP/\S+ \d+}i', $header)) {
+            if (Preg::isMatch('{^HTTP/\S+ \d+}i', $header)) {
                 // In case of redirects, http_response_headers contains the headers of all responses
                 // so we can not return directly and need to keep iterating
                 $value = $header;
@@ -281,7 +282,7 @@ class RemoteFilesystem
         unset($origFileUrl, $proxy, $usingProxy);
 
         // Check for secure HTTP, but allow insecure Packagist calls to $hashed providers as file integrity is verified with sha256
-        if ((!preg_match('{^http://(repo\.)?packagist\.org/p/}', $fileUrl) || (false === strpos($fileUrl, '$') && false === strpos($fileUrl, '%24'))) && empty($degradedPackagist)) {
+        if ((!Preg::isMatch('{^http://(repo\.)?packagist\.org/p/}', $fileUrl) || (false === strpos($fileUrl, '$') && false === strpos($fileUrl, '%24'))) && empty($degradedPackagist)) {
             $this->config->prohibitUrlByConfig($fileUrl, $this->io);
         }
 
@@ -296,7 +297,7 @@ class RemoteFilesystem
             if ($errorMessage) {
                 $errorMessage .= "\n";
             }
-            $errorMessage .= preg_replace('{^file_get_contents\(.*?\): }', '', $msg);
+            $errorMessage .= Preg::replace('{^file_get_contents\(.*?\): }', '', $msg);
 
             return true;
         });
@@ -386,7 +387,7 @@ class RemoteFilesystem
             && !$this->authHelper->isPublicBitBucketDownload($fileUrl)
             && substr($fileUrl, -4) === '.zip'
             && (!$locationHeader || substr(parse_url($locationHeader, PHP_URL_PATH), -4) !== '.zip')
-            && $contentType && preg_match('{^text/html\b}i', $contentType)
+            && $contentType && Preg::isMatch('{^text/html\b}i', $contentType)
         ) {
             $result = false;
             if ($retryAuthFailure) {
@@ -463,7 +464,7 @@ class RemoteFilesystem
                 if ($errorMessage) {
                     $errorMessage .= "\n";
                 }
-                $errorMessage .= preg_replace('{^file_put_contents\(.*?\): }', '', $msg);
+                $errorMessage .= Preg::replace('{^file_put_contents\(.*?\): }', '', $msg);
 
                 return true;
             });
@@ -752,11 +753,11 @@ class RemoteFilesystem
                 $urlHost = parse_url($this->fileUrl, PHP_URL_HOST);
 
                 // Replace path using hostname as an anchor.
-                $targetUrl = preg_replace('{^(.+(?://|@)'.preg_quote($urlHost).'(?::\d+)?)(?:[/\?].*)?$}', '\1'.$locationHeader, $this->fileUrl);
+                $targetUrl = Preg::replace('{^(.+(?://|@)'.preg_quote($urlHost).'(?::\d+)?)(?:[/\?].*)?$}', '\1'.$locationHeader, $this->fileUrl);
             } else {
                 // Relative path; e.g. foo
                 // This actually differs from PHP which seems to add duplicate slashes.
-                $targetUrl = preg_replace('{^(.+/)[^/?]*(?:\?.*)?$}', '\1'.$locationHeader, $this->fileUrl);
+                $targetUrl = Preg::replace('{^(.+/)[^/?]*(?:\?.*)?$}', '\1'.$locationHeader, $this->fileUrl);
             }
         }
 

src/Composer/Util/Svn.php

@@ -14,6 +14,7 @@ namespace Composer\Util;
 
 use Composer\Config;
 use Composer\IO\IOInterface;
+use Composer\Pcre\Preg;
 
 /**
  * @author Till Klampaeckel <till@php.net>
@@ -380,7 +381,7 @@ class Svn
     {
         if (!self::$version) {
             if (0 === $this->process->execute('svn --version', $output)) {
-                if (preg_match('{(\d+(?:\.\d+)+)}', $output, $match)) {
+                if (Preg::isMatch('{(\d+(?:\.\d+)+)}', $output, $match)) {
                     self::$version = $match[1];
                 }
             }

src/Composer/Util/TlsHelper.php

@@ -13,6 +13,7 @@
 namespace Composer\Util;
 
 use Composer\CaBundle\CaBundle;
+use Composer\Pcre\Preg;
 
 /**
  * @author Chris Smith <chris@cs278.org>
@@ -75,7 +76,7 @@ final class TlsHelper
         $subjectAltNames = array();
 
         if (isset($info['extensions']['subjectAltName'])) {
-            $subjectAltNames = preg_split('{\s*,\s*}', $info['extensions']['subjectAltName']);
+            $subjectAltNames = Preg::split('{\s*,\s*}', $info['extensions']['subjectAltName']);
             $subjectAltNames = array_filter(array_map(function ($name) {
                 if (0 === strpos($name, 'DNS:')) {
                     return strtolower(ltrim(substr($name, 4)));
@@ -198,7 +199,7 @@ final class TlsHelper
             $wildcardRegex = "{^{$wildcardRegex}$}";
 
             return function ($hostname) use ($wildcardRegex) {
-                return 1 === preg_match($wildcardRegex, $hostname);
+                return Preg::isMatch($wildcardRegex, $hostname);
             };
         }
 

src/Composer/Util/Url.php

@@ -13,6 +13,7 @@
 namespace Composer\Util;
 
 use Composer\Config;
+use Composer\Pcre\Preg;
 
 /**
  * @author Jordi Boggiano <j.boggiano@seld.be>
@@ -30,30 +31,30 @@ class Url
         $host = parse_url($url, PHP_URL_HOST);
 
         if ($host === 'api.github.com' || $host === 'github.com' || $host === 'www.github.com') {
-            if (preg_match('{^https?://(?:www\.)?github\.com/([^/]+)/([^/]+)/(zip|tar)ball/(.+)$}i', $url, $match)) {
+            if (Preg::isMatch('{^https?://(?:www\.)?github\.com/([^/]+)/([^/]+)/(zip|tar)ball/(.+)$}i', $url, $match)) {
                 // update legacy github archives to API calls with the proper reference
                 $url = 'https://api.github.com/repos/' . $match[1] . '/'. $match[2] . '/' . $match[3] . 'ball/' . $ref;
-            } elseif (preg_match('{^https?://(?:www\.)?github\.com/([^/]+)/([^/]+)/archive/.+\.(zip|tar)(?:\.gz)?$}i', $url, $match)) {
+            } elseif (Preg::isMatch('{^https?://(?:www\.)?github\.com/([^/]+)/([^/]+)/archive/.+\.(zip|tar)(?:\.gz)?$}i', $url, $match)) {
                 // update current github web archives to API calls with the proper reference
                 $url = 'https://api.github.com/repos/' . $match[1] . '/'. $match[2] . '/' . $match[3] . 'ball/' . $ref;
-            } elseif (preg_match('{^https?://api\.github\.com/repos/([^/]+)/([^/]+)/(zip|tar)ball(?:/.+)?$}i', $url, $match)) {
+            } elseif (Preg::isMatch('{^https?://api\.github\.com/repos/([^/]+)/([^/]+)/(zip|tar)ball(?:/.+)?$}i', $url, $match)) {
                 // update api archives to the proper reference
                 $url = 'https://api.github.com/repos/' . $match[1] . '/'. $match[2] . '/' . $match[3] . 'ball/' . $ref;
             }
         } elseif ($host === 'bitbucket.org' || $host === 'www.bitbucket.org') {
-            if (preg_match('{^https?://(?:www\.)?bitbucket\.org/([^/]+)/([^/]+)/get/(.+)\.(zip|tar\.gz|tar\.bz2)$}i', $url, $match)) {
+            if (Preg::isMatch('{^https?://(?:www\.)?bitbucket\.org/([^/]+)/([^/]+)/get/(.+)\.(zip|tar\.gz|tar\.bz2)$}i', $url, $match)) {
                 // update Bitbucket archives to the proper reference
                 $url = 'https://bitbucket.org/' . $match[1] . '/'. $match[2] . '/get/' . $ref . '.' . $match[4];
             }
         } elseif ($host === 'gitlab.com' || $host === 'www.gitlab.com') {
-            if (preg_match('{^https?://(?:www\.)?gitlab\.com/api/v[34]/projects/([^/]+)/repository/archive\.(zip|tar\.gz|tar\.bz2|tar)\?sha=.+$}i', $url, $match)) {
+            if (Preg::isMatch('{^https?://(?:www\.)?gitlab\.com/api/v[34]/projects/([^/]+)/repository/archive\.(zip|tar\.gz|tar\.bz2|tar)\?sha=.+$}i', $url, $match)) {
                 // update Gitlab archives to the proper reference
                 $url = 'https://gitlab.com/api/v4/projects/' . $match[1] . '/repository/archive.' . $match[2] . '?sha=' . $ref;
             }
         } elseif (in_array($host, $config->get('github-domains'), true)) {
-            $url = preg_replace('{(/repos/[^/]+/[^/]+/(zip|tar)ball)(?:/.+)?$}i', '$1/'.$ref, $url);
+            $url = Preg::replace('{(/repos/[^/]+/[^/]+/(zip|tar)ball)(?:/.+)?$}i', '$1/'.$ref, $url);
         } elseif (in_array($host, $config->get('gitlab-domains'), true)) {
-            $url = preg_replace('{(/api/v[34]/projects/[^/]+/repository/archive\.(?:zip|tar\.gz|tar\.bz2|tar)\?sha=).+$}i', '${1}'.$ref, $url);
+            $url = Preg::replace('{(/api/v[34]/projects/[^/]+/repository/archive\.(?:zip|tar\.gz|tar\.bz2|tar)\?sha=).+$}i', '${1}'.$ref, $url);
         }
 
         return $url;
@@ -111,11 +112,11 @@ class Url
     {
         // GitHub repository rename result in redirect locations containing the access_token as GET parameter
         // e.g. https://api.github.com/repositories/9999999999?access_token=github_token
-        $url = preg_replace('{([&?]access_token=)[^&]+}', '$1***', $url);
+        $url = Preg::replace('{([&?]access_token=)[^&]+}', '$1***', $url);
 
-        $url = preg_replace_callback('{^(?P<prefix>[a-z0-9]+://)?(?P<user>[^:/\s@]+):(?P<password>[^@\s/]+)@}i', function ($m) {
+        $url = Preg::replaceCallback('{^(?P<prefix>[a-z0-9]+://)?(?P<user>[^:/\s@]+):(?P<password>[^@\s/]+)@}i', function ($m) {
             // if the username looks like a long (12char+) hex string, or a modern github token (e.g. ghp_xxx) we obfuscate that
-            if (preg_match('{^([a-f0-9]{12,}|gh[a-z]_[a-zA-Z0-9_]+)$}', $m['user'])) {
+            if (Preg::isMatch('{^([a-f0-9]{12,}|gh[a-z]_[a-zA-Z0-9_]+)$}', $m['user'])) {
                 return $m['prefix'].'***:***@';
             }
 

tests/Composer/Test/AllFunctionalTest.php

@@ -12,6 +12,7 @@
 
 namespace Composer\Test;
 
+use Composer\Pcre\Preg;
 use Composer\Util\Filesystem;
 use Symfony\Component\Finder\Finder;
 use Symfony\Component\Process\Process;
@@ -147,10 +148,10 @@ class AllFunctionalTest extends TestCase
                     $line++;
                 }
                 if ($expected[$i] === '%') {
-                    preg_match('{%(.+?)%}', substr($expected, $i), $match);
+                    Preg::isMatch('{%(.+?)%}', substr($expected, $i), $match);
                     $regex = $match[1];
 
-                    if (preg_match('{'.$regex.'}', substr($output, $j), $match)) {
+                    if (Preg::isMatch('{'.$regex.'}', substr($output, $j), $match)) {
                         $i += strlen($regex) + 2;
                         $j += strlen($match[0]);
                         continue;
@@ -207,7 +208,7 @@ class AllFunctionalTest extends TestCase
      */
     private function parseTestFile($file)
     {
-        $tokens = preg_split('#(?:^|\n*)--([A-Z-]+)--\n#', file_get_contents($file), -1, PREG_SPLIT_DELIM_CAPTURE);
+        $tokens = Preg::split('#(?:^|\n*)--([A-Z-]+)--\n#', file_get_contents($file), -1, PREG_SPLIT_DELIM_CAPTURE);
         $data = array();
         $section = null;
 

tests/Composer/Test/DependencyResolver/PoolBuilderTest.php

@@ -17,6 +17,7 @@ use Composer\DependencyResolver\Pool;
 use Composer\DependencyResolver\PoolOptimizer;
 use Composer\Config;
 use Composer\IO\NullIO;
+use Composer\Pcre\Preg;
 use Composer\Repository\ArrayRepository;
 use Composer\Repository\FilterRepository;
 use Composer\Repository\LockArrayRepository;
@@ -188,7 +189,7 @@ class PoolBuilderTest extends TestCase
         $fixturesDir = realpath(__DIR__.'/Fixtures/poolbuilder/');
         $tests = array();
         foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($fixturesDir), \RecursiveIteratorIterator::LEAVES_ONLY) as $file) {
-            if (!preg_match('/\.test$/', $file)) {
+            if (!Preg::isMatch('/\.test$/', $file)) {
                 continue;
             }
 
@@ -224,7 +225,7 @@ class PoolBuilderTest extends TestCase
      */
     protected function readTestFile(\SplFileInfo $file, $fixturesDir)
     {
-        $tokens = preg_split('#(?:^|\n*)--([A-Z-]+)--\n#', file_get_contents($file->getRealPath()), -1, PREG_SPLIT_DELIM_CAPTURE);
+        $tokens = Preg::split('#(?:^|\n*)--([A-Z-]+)--\n#', file_get_contents($file->getRealPath()), -1, PREG_SPLIT_DELIM_CAPTURE);
 
         $sectionInfo = array(
             'TEST' => true,

tests/Composer/Test/DependencyResolver/PoolOptimizerTest.php

@@ -21,6 +21,7 @@ use Composer\Package\AliasPackage;
 use Composer\Package\BasePackage;
 use Composer\Package\Loader\ArrayLoader;
 use Composer\Package\Version\VersionParser;
+use Composer\Pcre\Preg;
 use Composer\Repository\LockArrayRepository;
 use Composer\Test\TestCase;
 
@@ -75,7 +76,7 @@ class PoolOptimizerTest extends TestCase
         $fixturesDir = realpath(__DIR__.'/Fixtures/pooloptimizer/');
         $tests = array();
         foreach (new \RecursiveIteratorIterator(new \RecursiveDirectoryIterator($fixturesDir), \RecursiveIteratorIterator::LEAVES_ONLY) as $file) {
-            if (!preg_match('/\.test$/', $file)) {
+            if (!Preg::isMatch('/\.test$/', $file)) {
                 continue;
             }
 
@@ -102,7 +103,7 @@ class PoolOptimizerTest extends TestCase
      */
     protected function readTestFile(\SplFileInfo $file, $fixturesDir)
     {
-        $tokens = preg_split('#(?:^|\n*)--([A-Z-]+)--\n#', file_get_contents($file->getRealPath()), -1, PREG_SPLIT_DELIM_CAPTURE);
+        $tokens = Preg::split('#(?:^|\n*)--([A-Z-]+)--\n#', file_get_contents($file->getRealPath()), -1, PREG_SPLIT_DELIM_CAPTURE);
 
         /** @var array<string, bool> $sectionInfo */
         $sectionInfo = array(

tests/Composer/Test/Downloader/GitDownloaderTest.php

@@ -14,6 +14,7 @@ namespace Composer\Test\Downloader;
 
 use Composer\Downloader\GitDownloader;
 use Composer\Config;
+use Composer\Pcre\Preg;
 use Composer\Test\TestCase;
 use Composer\Util\Filesystem;
 use Composer\Util\Platform;
@@ -159,7 +160,7 @@ class GitDownloaderTest extends TestCase
 
         $config = new Config;
         $this->setupConfig($config);
-        $cachePath = $config->get('cache-vcs-dir').'/'.preg_replace('{[^a-z0-9.]}i', '-', 'https://example.com/composer/composer').'/';
+        $cachePath = $config->get('cache-vcs-dir').'/'.Preg::replace('{[^a-z0-9.]}i', '-', 'https://example.com/composer/composer').'/';
 
         $filesystem = new \Composer\Util\Filesystem;
         $filesystem->removeDirectory($cachePath);

tests/Composer/Test/Fixtures/functional/installed-versions.test

@@ -8,7 +8,7 @@ Checks that package versions in InstalledVersions are correct on initial install
 update
 --EXPECT--
 > Hooks::preUpdate
-!!PreUpdate:["composer/ca-bundle","composer/composer","composer/metadata-minifier","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/console","symfony/debug","symfony/filesystem","symfony/finder","symfony/polyfill-ctype","symfony/polyfill-mbstring","symfony/process"]
+!!PreUpdate:["composer/ca-bundle","composer/composer","composer/metadata-minifier","composer/pcre","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/console","symfony/debug","symfony/filesystem","symfony/finder","symfony/polyfill-ctype","symfony/polyfill-mbstring","symfony/process"]
 !!Versions:console:%[2-8]\.\d+\.\d+.0%;process:%[2-8]\.\d+\.\d+.0%;filesystem:%[2-8]\.\d+\.\d+.0%
 Loading composer repositories with package information
 Updating dependencies
@@ -26,12 +26,12 @@ Package operations: 6 installs, 0 updates, 0 removals%(\nAs there is no 'unzip'
   - Downloading symfony/filesystem (%v?[2-8]\.\d+\.\d+%)
   - Installing symfony/console (99999.1.2): Symlinking from symfony-console
   - Installing plugin/a (1.1.1): Symlinking from plugin-a
-!!PluginAInit["composer/ca-bundle","composer/composer","composer/metadata-minifier","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/console","symfony/debug","symfony/filesystem","symfony/finder","symfony/polyfill-ctype","symfony/polyfill-mbstring","symfony/process","root/pkg"]
+!!PluginAInit["composer/ca-bundle","composer/composer","composer/metadata-minifier","composer/pcre","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/console","symfony/debug","symfony/filesystem","symfony/finder","symfony/polyfill-ctype","symfony/polyfill-mbstring","symfony/process","root/pkg"]
 !!PluginA:null
 !!PluginB:null
 !!Versions:console:%[2-8]\.\d+\.\d+.0%;process:%[2-8]\.\d+\.\d+.0%;filesystem:%[2-8]\.\d+\.\d+.0%
   - Installing plugin/b (2.2.2): Symlinking from plugin-b
-!!PluginBInit["composer/ca-bundle","composer/composer","composer/metadata-minifier","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/console","symfony/debug","symfony/filesystem","symfony/finder","symfony/polyfill-ctype","symfony/polyfill-mbstring","symfony/process","plugin/a","root/pkg"]
+!!PluginBInit["composer/ca-bundle","composer/composer","composer/metadata-minifier","composer/pcre","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/console","symfony/debug","symfony/filesystem","symfony/finder","symfony/polyfill-ctype","symfony/polyfill-mbstring","symfony/process","plugin/a","root/pkg"]
 !!PluginA:1.1.1.0
 !!PluginB:null
 !!Versions:console:%[2-8]\.\d+\.\d+.0%;process:%[2-8]\.\d+\.\d+.0%;filesystem:%[2-8]\.\d+\.\d+.0%
@@ -42,7 +42,7 @@ Generating autoload files
 2 packages you are using are looking for funding.
 Use the `composer fund` command to find out more!
 > Hooks::postUpdate
-!!PostUpdate:["composer/ca-bundle","composer/composer","composer/metadata-minifier","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/console","symfony/debug","symfony/filesystem","symfony/finder","symfony/polyfill-ctype","symfony/polyfill-mbstring","symfony/process","plugin/a","plugin/b","root/pkg"]
+!!PostUpdate:["composer/ca-bundle","composer/composer","composer/metadata-minifier","composer/pcre","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/console","symfony/debug","symfony/filesystem","symfony/finder","symfony/polyfill-ctype","symfony/polyfill-mbstring","symfony/process","plugin/a","plugin/b","root/pkg"]
 !!Versions:console:%[2-8]\.\d+\.\d+.0%;process:%[2-8]\.\d+\.\d+.0%;filesystem:%[2-8]\.\d+\.\d+.0%
 
 --EXPECT-EXIT-CODE--

tests/Composer/Test/Fixtures/functional/installed-versions2.test

@@ -7,14 +7,14 @@ Checks that package versions in InstalledVersions are correct during an upgrade.
 --RUN--
 update plugin/* symfony/console symfony/filesystem symfony/process
 --EXPECT--
-!!PluginA:1.1.1.0["composer/ca-bundle","composer/composer","composer/metadata-minifier","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/console","symfony/debug","symfony/filesystem","symfony/finder","symfony/polyfill-ctype","symfony/polyfill-mbstring","symfony/process","plugin/a","plugin/b","root/pkg"]
+!!PluginA:1.1.1.0["composer/ca-bundle","composer/composer","composer/metadata-minifier","composer/pcre","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/console","symfony/debug","symfony/filesystem","symfony/finder","symfony/polyfill-ctype","symfony/polyfill-mbstring","symfony/process","plugin/a","plugin/b","root/pkg"]
 !!PluginB:2.2.2.0
 !!Versions:console:%[2-8]\.\d+\.\d+.0%;process:%[2-8]\.\d+\.\d+.0%;filesystem:%[2-8]\.\d+\.\d+.0%
-!!PluginB:2.2.2.0["composer/ca-bundle","composer/composer","composer/metadata-minifier","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/console","symfony/debug","symfony/filesystem","symfony/finder","symfony/polyfill-ctype","symfony/polyfill-mbstring","symfony/process","plugin/a","plugin/b","root/pkg"]
+!!PluginB:2.2.2.0["composer/ca-bundle","composer/composer","composer/metadata-minifier","composer/pcre","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/console","symfony/debug","symfony/filesystem","symfony/finder","symfony/polyfill-ctype","symfony/polyfill-mbstring","symfony/process","plugin/a","plugin/b","root/pkg"]
 !!PluginA:1.1.1.0
 !!Versions:console:%[2-8]\.\d+\.\d+.0%;process:%[2-8]\.\d+\.\d+.0%;filesystem:%[2-8]\.\d+\.\d+.0%
 > Hooks::preUpdate
-!!PreUpdate:["composer/ca-bundle","composer/composer","composer/metadata-minifier","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/console","symfony/debug","symfony/filesystem","symfony/finder","symfony/polyfill-ctype","symfony/polyfill-mbstring","symfony/process","plugin/a","plugin/b","root/pkg"]
+!!PreUpdate:["composer/ca-bundle","composer/composer","composer/metadata-minifier","composer/pcre","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/console","symfony/debug","symfony/filesystem","symfony/finder","symfony/polyfill-ctype","symfony/polyfill-mbstring","symfony/process","plugin/a","plugin/b","root/pkg"]
 !!Versions:console:%[2-8]\.\d+\.\d+.0%;process:%[2-8]\.\d+\.\d+.0%;filesystem:%[2-8]\.\d+\.\d+.0%
 Loading composer repositories with package information
 Updating dependencies
@@ -30,12 +30,12 @@ Package operations: 0 installs, 5 updates, 0 removals%(\nAs there is no 'unzip'
   - Downloading symfony/filesystem (%v?[2-8]\.\d+\.\d+%)
   - Upgrading symfony/console (99999.1.2 => 99999.1.3): Mirroring from symfony-console
   - Upgrading plugin/a (1.1.1 => 1.1.2): Mirroring from plugin-a
-!!PluginAInit["composer/ca-bundle","composer/composer","composer/metadata-minifier","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/console","symfony/debug","symfony/filesystem","symfony/finder","symfony/polyfill-ctype","symfony/polyfill-mbstring","symfony/process","plugin/a","plugin/b","root/pkg"]
+!!PluginAInit["composer/ca-bundle","composer/composer","composer/metadata-minifier","composer/pcre","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/console","symfony/debug","symfony/filesystem","symfony/finder","symfony/polyfill-ctype","symfony/polyfill-mbstring","symfony/process","plugin/a","plugin/b","root/pkg"]
 !!PluginA:1.1.1.0
 !!PluginB:2.2.2.0
 !!Versions:console:%[2-8]\.\d+\.\d+.0%;process:%[2-8]\.\d+\.\d+.0%;filesystem:%[2-8]\.\d+\.\d+.0%
   - Upgrading plugin/b (2.2.2 => 2.2.3): Mirroring from plugin-b
-!!PluginBInit["composer/ca-bundle","composer/composer","composer/metadata-minifier","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/console","symfony/debug","symfony/filesystem","symfony/finder","symfony/polyfill-ctype","symfony/polyfill-mbstring","symfony/process","plugin/a","plugin/b","root/pkg"]
+!!PluginBInit["composer/ca-bundle","composer/composer","composer/metadata-minifier","composer/pcre","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/console","symfony/debug","symfony/filesystem","symfony/finder","symfony/polyfill-ctype","symfony/polyfill-mbstring","symfony/process","plugin/a","plugin/b","root/pkg"]
 !!PluginA:1.1.2.0
 !!PluginB:2.2.2.0
 !!Versions:console:%[2-8]\.\d+\.\d+.0%;process:%[2-8]\.\d+\.\d+.0%;filesystem:%[2-8]\.\d+\.\d+.0%
@@ -45,7 +45,7 @@ Generating autoload files
 2 packages you are using are looking for funding.
 Use the `composer fund` command to find out more!
 > Hooks::postUpdate
-!!PostUpdate:["composer/ca-bundle","composer/composer","composer/metadata-minifier","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/console","symfony/debug","symfony/filesystem","symfony/finder","symfony/polyfill-ctype","symfony/polyfill-mbstring","symfony/process","plugin/a","plugin/b","root/pkg"]
+!!PostUpdate:["composer/ca-bundle","composer/composer","composer/metadata-minifier","composer/pcre","composer/semver","composer/spdx-licenses","composer/xdebug-handler","justinrainbow/json-schema","psr/log","react/promise","seld/jsonlint","seld/phar-utils","symfony/console","symfony/debug","symfony/filesystem","symfony/finder","symfony/polyfill-ctype","symfony/polyfill-mbstring","symfony/process","plugin/a","plugin/b","root/pkg"]
 !!Versions:console:%[2-8]\.\d+\.\d+.0%;process:%[2-8]\.\d+\.\d+.0%;filesystem:%[2-8]\.\d+\.\d+.0%
 !!PluginA:1.1.2.0
 !!PluginB:2.2.3.0